./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label35.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/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_ce328659-aab4-4a95-bfbb-f0af30c47e33/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label35.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/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_ce328659-aab4-4a95-bfbb-f0af30c47e33/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 62d888471d056f6cd9411573d32e3ae9a40e666c4b036562384bced7989fece1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:18:31,297 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:18:31,389 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:18:31,396 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:18:31,397 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:18:31,433 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:18:31,436 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:18:31,436 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:18:31,437 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:18:31,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:18:31,439 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:18:31,439 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:18:31,440 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:18:31,440 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:18:31,443 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:18:31,443 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:18:31,444 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:18:31,444 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:18:31,444 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:18:31,445 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:18:31,445 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:18:31,449 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:18:31,450 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:18:31,450 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:18:31,451 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:18:31,451 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:18:31,452 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:18:31,452 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:18:31,452 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:18:31,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:18:31,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:18:31,454 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:18:31,454 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:18:31,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:18:31,455 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:18:31,455 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:18:31,455 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:18:31,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:18:31,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:18:31,456 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:18:31,457 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:18:31,458 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:18:31,458 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:18:31,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:18:31,458 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:18:31,459 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:18:31,459 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:18:31,460 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_ce328659-aab4-4a95-bfbb-f0af30c47e33/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62d888471d056f6cd9411573d32e3ae9a40e666c4b036562384bced7989fece1 [2024-11-09 06:18:31,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:18:31,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:18:31,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:18:31,769 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:18:31,770 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:18:31,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/eca-rers2012/Problem10_label35.c Unable to find full path for "g++" [2024-11-09 06:18:33,910 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:18:34,269 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:18:34,269 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/sv-benchmarks/c/eca-rers2012/Problem10_label35.c [2024-11-09 06:18:34,289 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/bin/utaipan-verify-YMUCfTKeje/data/e151f31df/24c23ea8df7d4f5a88f2415331b74110/FLAG6b8296c6f [2024-11-09 06:18:34,310 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/bin/utaipan-verify-YMUCfTKeje/data/e151f31df/24c23ea8df7d4f5a88f2415331b74110 [2024-11-09 06:18:34,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:18:34,316 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:18:34,319 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:18:34,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:18:34,326 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:18:34,326 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:18:34" (1/1) ... [2024-11-09 06:18:34,328 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@254e335a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:18:34, skipping insertion in model container [2024-11-09 06:18:34,328 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:18:34" (1/1) ... [2024-11-09 06:18:34,375 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:18:34,620 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_ce328659-aab4-4a95-bfbb-f0af30c47e33/sv-benchmarks/c/eca-rers2012/Problem10_label35.c[5864,5877] [2024-11-09 06:18:34,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:18:34,813 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:18:34,849 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_ce328659-aab4-4a95-bfbb-f0af30c47e33/sv-benchmarks/c/eca-rers2012/Problem10_label35.c[5864,5877] [2024-11-09 06:18:34,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:18:34,948 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:18:34,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:18:34 WrapperNode [2024-11-09 06:18:34,949 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:18:34,950 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:18:34,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:18:34,950 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:18:34,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:18:34" (1/1) ... [2024-11-09 06:18:35,000 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:18:34" (1/1) ... [2024-11-09 06:18:35,060 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2024-11-09 06:18:35,060 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:18:35,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:18:35,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:18:35,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:18:35,072 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:18:34" (1/1) ... [2024-11-09 06:18:35,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:18:34" (1/1) ... [2024-11-09 06:18:35,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:18:34" (1/1) ... [2024-11-09 06:18:35,085 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:18:34" (1/1) ... [2024-11-09 06:18:35,108 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:18:34" (1/1) ... [2024-11-09 06:18:35,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:18:34" (1/1) ... [2024-11-09 06:18:35,125 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:18:34" (1/1) ... [2024-11-09 06:18:35,129 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:18:34" (1/1) ... [2024-11-09 06:18:35,141 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:18:35,142 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:18:35,142 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:18:35,143 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:18:35,144 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:18:34" (1/1) ... [2024-11-09 06:18:35,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:18:35,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:18:35,179 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:18:35,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:18:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:18:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:18:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:18:35,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:18:35,302 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:18:35,304 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:18:36,449 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-09 06:18:36,449 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:18:39,672 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:18:39,673 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:18:39,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:18:39 BoogieIcfgContainer [2024-11-09 06:18:39,673 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:18:39,679 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:18:39,679 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:18:39,683 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:18:39,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:18:34" (1/3) ... [2024-11-09 06:18:39,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b677b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:18:39, skipping insertion in model container [2024-11-09 06:18:39,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:18:34" (2/3) ... [2024-11-09 06:18:39,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b677b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:18:39, skipping insertion in model container [2024-11-09 06:18:39,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:18:39" (3/3) ... [2024-11-09 06:18:39,690 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label35.c [2024-11-09 06:18:39,711 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:18:39,712 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:18:39,785 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:18:39,797 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;@e5ff725, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:18:39,798 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:18:39,803 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 06:18:39,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 06:18:39,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:39,811 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 06:18:39,812 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:18:39,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:39,820 INFO L85 PathProgramCache]: Analyzing trace with hash 900854459, now seen corresponding path program 1 times [2024-11-09 06:18:39,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:39,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023211131] [2024-11-09 06:18:39,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:39,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:40,193 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 06:18:40,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:40,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023211131] [2024-11-09 06:18:40,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023211131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:40,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:18:40,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:18:40,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040851459] [2024-11-09 06:18:40,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:40,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:18:40,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:40,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:18:40,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:18:40,234 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 06:18:40,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:40,329 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2024-11-09 06:18:40,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:18:40,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 06:18:40,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:40,340 INFO L225 Difference]: With dead ends: 23 [2024-11-09 06:18:40,340 INFO L226 Difference]: Without dead ends: 11 [2024-11-09 06:18:40,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:18:40,347 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:40,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:18:40,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-11-09 06:18:40,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2024-11-09 06:18:40,379 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 06:18:40,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2024-11-09 06:18:40,381 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2024-11-09 06:18:40,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:40,382 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2024-11-09 06:18:40,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 06:18:40,383 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2024-11-09 06:18:40,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 06:18:40,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:40,383 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-09 06:18:40,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:18:40,384 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:18:40,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:40,385 INFO L85 PathProgramCache]: Analyzing trace with hash -2004883958, now seen corresponding path program 1 times [2024-11-09 06:18:40,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:40,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229223026] [2024-11-09 06:18:40,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:40,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:55,476 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 06:18:55,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:55,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229223026] [2024-11-09 06:18:55,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229223026] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:18:55,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252242016] [2024-11-09 06:18:55,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:55,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:18:55,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:18:55,487 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:18:55,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:18:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:55,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 06:18:55,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:18:57,218 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 06:18:57,218 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:19:04,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:19:04,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252242016] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:19:04,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:19:04,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 8 [2024-11-09 06:19:04,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412505302] [2024-11-09 06:19:04,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:19:04,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:19:04,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:19:04,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:19:04,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:19:04,933 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:19:04,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:19:04,977 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2024-11-09 06:19:04,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:19:04,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 06:19:04,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:19:04,979 INFO L225 Difference]: With dead ends: 10 [2024-11-09 06:19:04,979 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 06:19:04,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:19:04,982 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:19:04,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:19:04,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 06:19:04,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 06:19:04,984 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 06:19:04,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 06:19:04,984 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2024-11-09 06:19:04,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:19:04,985 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 06:19:04,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:19:04,985 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 06:19:04,985 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 06:19:04,988 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:19:05,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:19:05,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:19:05,196 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 06:19:05,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 06:19:05,222 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:19:05,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:19:05 BoogieIcfgContainer [2024-11-09 06:19:05,240 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:19:05,241 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:19:05,241 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:19:05,241 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:19:05,242 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:18:39" (3/4) ... [2024-11-09 06:19:05,244 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 06:19:05,259 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 195 nodes and edges [2024-11-09 06:19:05,261 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-09 06:19:05,262 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 06:19:05,263 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 06:19:05,434 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 06:19:05,435 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 06:19:05,435 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:19:05,436 INFO L158 Benchmark]: Toolchain (without parser) took 31119.55ms. Allocated memory was 153.1MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 114.4MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 164.1MB. Max. memory is 16.1GB. [2024-11-09 06:19:05,436 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 115.3MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:19:05,438 INFO L158 Benchmark]: CACSL2BoogieTranslator took 629.48ms. Allocated memory is still 153.1MB. Free memory was 114.0MB in the beginning and 84.2MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-09 06:19:05,438 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.95ms. Allocated memory is still 153.1MB. Free memory was 84.2MB in the beginning and 116.0MB in the end (delta: -31.8MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2024-11-09 06:19:05,438 INFO L158 Benchmark]: Boogie Preprocessor took 80.55ms. Allocated memory is still 153.1MB. Free memory was 116.0MB in the beginning and 111.2MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 06:19:05,439 INFO L158 Benchmark]: RCFGBuilder took 4531.35ms. Allocated memory was 153.1MB in the beginning and 434.1MB in the end (delta: 281.0MB). Free memory was 111.2MB in the beginning and 356.3MB in the end (delta: -245.1MB). Peak memory consumption was 144.0MB. Max. memory is 16.1GB. [2024-11-09 06:19:05,440 INFO L158 Benchmark]: TraceAbstraction took 25561.28ms. Allocated memory was 434.1MB in the beginning and 2.3GB in the end (delta: 1.9GB). Free memory was 356.3MB in the beginning and 2.2GB in the end (delta: -1.8GB). Peak memory consumption was 110.9MB. Max. memory is 16.1GB. [2024-11-09 06:19:05,440 INFO L158 Benchmark]: Witness Printer took 194.65ms. Allocated memory is still 2.3GB. Free memory was 2.2GB in the beginning and 2.1GB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 06:19:05,442 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 115.3MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 629.48ms. Allocated memory is still 153.1MB. Free memory was 114.0MB in the beginning and 84.2MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.95ms. Allocated memory is still 153.1MB. Free memory was 84.2MB in the beginning and 116.0MB in the end (delta: -31.8MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.55ms. Allocated memory is still 153.1MB. Free memory was 116.0MB in the beginning and 111.2MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 4531.35ms. Allocated memory was 153.1MB in the beginning and 434.1MB in the end (delta: 281.0MB). Free memory was 111.2MB in the beginning and 356.3MB in the end (delta: -245.1MB). Peak memory consumption was 144.0MB. Max. memory is 16.1GB. * TraceAbstraction took 25561.28ms. Allocated memory was 434.1MB in the beginning and 2.3GB in the end (delta: 1.9GB). Free memory was 356.3MB in the beginning and 2.2GB in the end (delta: -1.8GB). Peak memory consumption was 110.9MB. Max. memory is 16.1GB. * Witness Printer took 194.65ms. Allocated memory is still 2.3GB. Free memory was 2.2GB in the beginning and 2.1GB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. 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: 167]: 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: 25.4s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 5 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=1, InterpolantAutomatonStates: 6, 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, 24.4s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 508 SizeOfPredicates, 4 NumberOfNonLiveVariables, 170 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 3/9 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: 592]: Loop Invariant Derived loop invariant: ((7 != a19) || (0 < ((long long) a1 + 13))) RESULT: Ultimate proved your program to be correct! [2024-11-09 06:19:05,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce328659-aab4-4a95-bfbb-f0af30c47e33/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