./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label19.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label19.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje --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 5b769442af2d950aaf4b68e467259bd2e1d98c5d8ca4dcdd5a740ef956112baf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:28:24,881 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:28:24,959 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:28:24,965 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:28:24,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:28:25,010 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:28:25,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:28:25,012 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:28:25,013 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:28:25,015 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:28:25,015 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:28:25,017 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:28:25,018 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:28:25,018 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:28:25,018 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:28:25,019 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:28:25,020 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:28:25,020 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:28:25,022 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:28:25,023 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:28:25,023 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:28:25,024 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:28:25,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:28:25,025 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:28:25,025 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:28:25,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:28:25,026 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:28:25,026 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:28:25,026 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:28:25,027 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:28:25,027 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:28:25,027 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:28:25,028 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:28:25,028 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:28:25,028 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:28:25,029 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:28:25,029 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:28:25,029 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:28:25,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:28:25,030 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:28:25,030 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:28:25,031 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:28:25,032 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:28:25,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:28:25,032 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:28:25,032 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:28:25,033 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:28:25,033 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b769442af2d950aaf4b68e467259bd2e1d98c5d8ca4dcdd5a740ef956112baf [2024-11-09 05:28:25,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:28:25,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:28:25,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:28:25,361 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:28:25,362 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:28:25,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/eca-rers2012/Problem14_label19.c Unable to find full path for "g++" [2024-11-09 05:28:27,438 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:28:27,701 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:28:27,702 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/sv-benchmarks/c/eca-rers2012/Problem14_label19.c [2024-11-09 05:28:27,718 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/data/6620ee1bc/a0f9f44bb03b49ad84bdd3b5b8056e41/FLAG063ef23c4 [2024-11-09 05:28:27,741 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/data/6620ee1bc/a0f9f44bb03b49ad84bdd3b5b8056e41 [2024-11-09 05:28:27,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:28:27,745 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:28:27,747 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:28:27,747 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:28:27,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:28:27,754 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:28:27" (1/1) ... [2024-11-09 05:28:27,756 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a72390d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:27, skipping insertion in model container [2024-11-09 05:28:27,756 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:28:27" (1/1) ... [2024-11-09 05:28:27,809 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:28:28,069 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_f2249589-e426-4522-98fb-61cc65a731f6/sv-benchmarks/c/eca-rers2012/Problem14_label19.c[6323,6336] [2024-11-09 05:28:28,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:28:28,313 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:28:28,349 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_f2249589-e426-4522-98fb-61cc65a731f6/sv-benchmarks/c/eca-rers2012/Problem14_label19.c[6323,6336] [2024-11-09 05:28:28,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:28:28,499 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:28:28,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:28 WrapperNode [2024-11-09 05:28:28,500 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:28:28,501 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:28:28,501 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:28:28,501 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:28:28,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:28" (1/1) ... [2024-11-09 05:28:28,538 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:28" (1/1) ... [2024-11-09 05:28:28,638 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2024-11-09 05:28:28,639 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:28:28,640 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:28:28,640 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:28:28,640 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:28:28,652 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:28" (1/1) ... [2024-11-09 05:28:28,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:28" (1/1) ... [2024-11-09 05:28:28,665 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:28" (1/1) ... [2024-11-09 05:28:28,666 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:28" (1/1) ... [2024-11-09 05:28:28,723 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:28" (1/1) ... [2024-11-09 05:28:28,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:28" (1/1) ... [2024-11-09 05:28:28,740 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:28" (1/1) ... [2024-11-09 05:28:28,745 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:28" (1/1) ... [2024-11-09 05:28:28,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:28:28,758 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:28:28,758 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:28:28,758 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:28:28,759 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:28" (1/1) ... [2024-11-09 05:28:28,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:28:28,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:28:28,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:28:28,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:28:28,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:28:28,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:28:28,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:28:28,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:28:28,931 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:28:28,934 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:28:30,513 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-09 05:28:30,514 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:28:35,589 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:28:35,590 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:28:35,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:28:35 BoogieIcfgContainer [2024-11-09 05:28:35,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:28:35,592 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:28:35,593 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:28:35,596 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:28:35,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:28:27" (1/3) ... [2024-11-09 05:28:35,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f0b439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:28:35, skipping insertion in model container [2024-11-09 05:28:35,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:28" (2/3) ... [2024-11-09 05:28:35,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f0b439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:28:35, skipping insertion in model container [2024-11-09 05:28:35,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:28:35" (3/3) ... [2024-11-09 05:28:35,602 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label19.c [2024-11-09 05:28:35,622 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:28:35,623 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:28:35,697 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:28:35,707 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;@463a4da4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:28:35,707 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:28:35,712 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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) [2024-11-09 05:28:35,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 05:28:35,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:35,719 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 05:28:35,720 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:28:35,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:35,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1057239844, now seen corresponding path program 1 times [2024-11-09 05:28:35,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:35,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742012752] [2024-11-09 05:28:35,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:35,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:36,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:28:36,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:36,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742012752] [2024-11-09 05:28:36,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742012752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:28:36,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:28:36,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:28:36,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925208870] [2024-11-09 05:28:36,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:28:36,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:28:36,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:36,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:28:36,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:28:36,170 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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, 4 states have (on average 1.25) internal successors, (5), 3 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) [2024-11-09 05:28:36,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:36,306 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2024-11-09 05:28:36,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:28:36,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-09 05:28:36,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:36,317 INFO L225 Difference]: With dead ends: 23 [2024-11-09 05:28:36,318 INFO L226 Difference]: Without dead ends: 11 [2024-11-09 05:28:36,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:28:36,326 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 8 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:36,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 10 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:28:36,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-11-09 05:28:36,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2024-11-09 05:28:36,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2024-11-09 05:28:36,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2024-11-09 05:28:36,361 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2024-11-09 05:28:36,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:36,362 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2024-11-09 05:28:36,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 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) [2024-11-09 05:28:36,363 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2024-11-09 05:28:36,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 05:28:36,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:36,364 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-09 05:28:36,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:28:36,366 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:28:36,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:36,367 INFO L85 PathProgramCache]: Analyzing trace with hash 783123052, now seen corresponding path program 1 times [2024-11-09 05:28:36,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:36,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025543663] [2024-11-09 05:28:36,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:36,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:29:04,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:04,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025543663] [2024-11-09 05:29:04,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025543663] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:29:04,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436453462] [2024-11-09 05:29:04,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:04,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:04,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:29:04,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:29:04,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:29:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:04,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:29:04,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:29:07,424 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:29:07,424 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:29:36,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:29:36,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436453462] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:29:36,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [968968891] [2024-11-09 05:29:36,311 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2024-11-09 05:29:36,311 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:29:36,315 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:29:36,324 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:29:36,325 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:29:37,804 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 58 [2024-11-09 05:29:40,011 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 39408 conjunctions. This might take some time... [2024-11-09 05:29:42,334 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 228 conjunctions. [2024-11-09 05:29:42,349 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 58 [2024-11-09 05:29:44,290 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 39408 conjunctions. This might take some time... [2024-11-09 05:29:46,612 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 228 conjunctions. [2024-11-09 05:33:39,347 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 57 [2024-11-09 05:33:39,943 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 20664 conjunctions. This might take some time... [2024-11-09 05:33:40,335 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 114 conjunctions. [2024-11-09 05:33:40,338 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 57 [2024-11-09 05:33:40,858 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 20664 conjunctions. This might take some time... [2024-11-09 05:33:41,268 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 114 conjunctions. [2024-11-09 05:38:57,976 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 57 [2024-11-09 05:38:58,515 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 20664 conjunctions. This might take some time... [2024-11-09 05:38:58,927 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 114 conjunctions. [2024-11-09 05:38:58,929 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 57 [2024-11-09 05:38:59,512 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 20664 conjunctions. This might take some time... [2024-11-09 05:38:59,897 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 114 conjunctions. [2024-11-09 05:38:59,934 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 57 [2024-11-09 05:39:00,517 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 20664 conjunctions. This might take some time... [2024-11-09 05:39:00,928 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 114 conjunctions. [2024-11-09 05:39:00,946 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 57 [2024-11-09 05:39:01,485 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 20664 conjunctions. This might take some time... [2024-11-09 05:39:01,894 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 114 conjunctions. [2024-11-09 05:39:01,907 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:39:01,975 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '116#(and (<= (+ ~a12~0 43) 0) (= ~a24~0 1) (= ~a21~0 6) (or (= |ULTIMATE.start_calculate_output_~input#1| 6) (= |ULTIMATE.start_calculate_output_~input#1| 2) (= |ULTIMATE.start_calculate_output_~input#1| 1) (= |ULTIMATE.start_calculate_output_~input#1| 3) (= |ULTIMATE.start_calculate_output_~input#1| 4) (= |ULTIMATE.start_calculate_output_~input#1| 5)) (= ~a15~0 6))' at error location [2024-11-09 05:39:01,975 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:39:01,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:39:01,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 9 [2024-11-09 05:39:01,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677702012] [2024-11-09 05:39:01,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:39:01,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:39:01,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:39:01,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:39:01,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-09 05:39:01,979 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:39:02,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:39:02,242 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2024-11-09 05:39:02,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:39:02,244 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 05:39:02,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:39:02,245 INFO L225 Difference]: With dead ends: 19 [2024-11-09 05:39:02,245 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 05:39:02,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:39:02,247 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:39:02,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:39:02,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 05:39:02,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 05:39:02,248 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) [2024-11-09 05:39:02,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 05:39:02,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2024-11-09 05:39:02,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:39:02,249 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 05:39:02,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:39:02,249 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 05:39:02,249 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 05:39:02,252 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 05:39:02,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:39:02,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:39:02,458 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 05:39:02,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 05:39:02,481 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:39:02,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:39:02 BoogieIcfgContainer [2024-11-09 05:39:02,506 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:39:02,506 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:39:02,507 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:39:02,507 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:39:02,507 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:28:35" (3/4) ... [2024-11-09 05:39:02,510 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 05:39:02,543 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 232 nodes and edges [2024-11-09 05:39:02,545 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-09 05:39:02,548 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 05:39:02,550 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 05:39:02,758 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:39:02,759 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 05:39:02,759 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:39:02,760 INFO L158 Benchmark]: Toolchain (without parser) took 635014.60ms. Allocated memory was 165.7MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 125.5MB in the beginning and 995.0MB in the end (delta: -869.5MB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2024-11-09 05:39:02,760 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 63.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:39:02,760 INFO L158 Benchmark]: CACSL2BoogieTranslator took 753.20ms. Allocated memory is still 165.7MB. Free memory was 125.0MB in the beginning and 89.8MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-09 05:39:02,761 INFO L158 Benchmark]: Boogie Procedure Inliner took 138.36ms. Allocated memory is still 165.7MB. Free memory was 89.8MB in the beginning and 80.4MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 05:39:02,762 INFO L158 Benchmark]: Boogie Preprocessor took 117.27ms. Allocated memory is still 165.7MB. Free memory was 80.4MB in the beginning and 125.7MB in the end (delta: -45.3MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2024-11-09 05:39:02,762 INFO L158 Benchmark]: RCFGBuilder took 6832.77ms. Allocated memory was 165.7MB in the beginning and 453.0MB in the end (delta: 287.3MB). Free memory was 125.7MB in the beginning and 205.1MB in the end (delta: -79.4MB). Peak memory consumption was 300.9MB. Max. memory is 16.1GB. [2024-11-09 05:39:02,762 INFO L158 Benchmark]: TraceAbstraction took 626913.51ms. Allocated memory was 453.0MB in the beginning and 2.6GB in the end (delta: 2.2GB). Free memory was 205.1MB in the beginning and 1.0GB in the end (delta: -806.7MB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2024-11-09 05:39:02,763 INFO L158 Benchmark]: Witness Printer took 252.66ms. Allocated memory is still 2.6GB. Free memory was 1.0GB in the beginning and 995.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 05:39:02,765 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 63.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 753.20ms. Allocated memory is still 165.7MB. Free memory was 125.0MB in the beginning and 89.8MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 138.36ms. Allocated memory is still 165.7MB. Free memory was 89.8MB in the beginning and 80.4MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 117.27ms. Allocated memory is still 165.7MB. Free memory was 80.4MB in the beginning and 125.7MB in the end (delta: -45.3MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * RCFGBuilder took 6832.77ms. Allocated memory was 165.7MB in the beginning and 453.0MB in the end (delta: 287.3MB). Free memory was 125.7MB in the beginning and 205.1MB in the end (delta: -79.4MB). Peak memory consumption was 300.9MB. Max. memory is 16.1GB. * TraceAbstraction took 626913.51ms. Allocated memory was 453.0MB in the beginning and 2.6GB in the end (delta: 2.2GB). Free memory was 205.1MB in the beginning and 1.0GB in the end (delta: -806.7MB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Witness Printer took 252.66ms. Allocated memory is still 2.6GB. Free memory was 1.0GB in the beginning and 995.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. 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: 200]: 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 626.8s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 5 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=1, InterpolantAutomatonStates: 10, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 59.9s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 384 SizeOfPredicates, 2 NumberOfNonLiveVariables, 179 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((a15 != 6) || (a21 != 6)) || (0 < ((long long) a12 + 43))) RESULT: Ultimate proved your program to be correct! [2024-11-09 05:39:02,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2249589-e426-4522-98fb-61cc65a731f6/bin/utaipan-verify-YMUCfTKeje/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