./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/gj2007.c.i.p+nlh-reducer.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_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/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_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/gj2007.c.i.p+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/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_919b34c1-67b7-4d23-941d-36ff61efe706/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 78a4cc43ce1234c075e2c73cca2f6f44edddfccbee7278c746f2db07d17136bf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:20:02,128 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:20:02,221 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:20:02,230 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:20:02,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:20:02,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:20:02,262 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:20:02,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:20:02,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:20:02,263 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:20:02,264 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:20:02,264 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:20:02,265 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:20:02,265 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:20:02,265 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:20:02,266 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:20:02,266 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:20:02,267 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:20:02,267 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:20:02,267 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:20:02,268 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:20:02,272 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:20:02,272 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:20:02,273 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:20:02,273 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:20:02,273 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:20:02,274 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:20:02,274 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:20:02,274 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:20:02,275 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:20:02,275 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:20:02,275 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:20:02,276 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:20:02,276 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:20:02,276 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:20:02,277 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:20:02,277 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:20:02,278 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:20:02,278 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:20:02,278 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:20:02,279 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:20:02,279 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:20:02,280 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:20:02,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:20:02,280 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:20:02,281 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:20:02,281 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:20:02,281 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_919b34c1-67b7-4d23-941d-36ff61efe706/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78a4cc43ce1234c075e2c73cca2f6f44edddfccbee7278c746f2db07d17136bf [2024-11-09 06:20:02,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:20:02,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:20:02,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:20:02,591 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:20:02,591 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:20:02,593 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/loop-lit/gj2007.c.i.p+nlh-reducer.c Unable to find full path for "g++" [2024-11-09 06:20:04,713 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:20:04,963 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:20:04,963 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/sv-benchmarks/c/loop-lit/gj2007.c.i.p+nlh-reducer.c [2024-11-09 06:20:04,983 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/data/f0e9c714b/12343f67d3ee494f9323ec863e95c054/FLAGcd509954f [2024-11-09 06:20:05,000 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/data/f0e9c714b/12343f67d3ee494f9323ec863e95c054 [2024-11-09 06:20:05,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:20:05,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:20:05,006 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:20:05,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:20:05,012 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:20:05,013 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:20:05" (1/1) ... [2024-11-09 06:20:05,015 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2717773d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:05, skipping insertion in model container [2024-11-09 06:20:05,015 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:20:05" (1/1) ... [2024-11-09 06:20:05,079 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:20:05,306 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_919b34c1-67b7-4d23-941d-36ff61efe706/sv-benchmarks/c/loop-lit/gj2007.c.i.p+nlh-reducer.c[6448,6461] [2024-11-09 06:20:05,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:20:05,389 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:20:05,436 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_919b34c1-67b7-4d23-941d-36ff61efe706/sv-benchmarks/c/loop-lit/gj2007.c.i.p+nlh-reducer.c[6448,6461] [2024-11-09 06:20:05,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:20:05,494 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:20:05,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:05 WrapperNode [2024-11-09 06:20:05,495 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:20:05,496 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:20:05,496 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:20:05,497 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:20:05,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:05" (1/1) ... [2024-11-09 06:20:05,519 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:05" (1/1) ... [2024-11-09 06:20:05,563 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 637 [2024-11-09 06:20:05,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:20:05,566 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:20:05,566 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:20:05,566 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:20:05,584 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:05" (1/1) ... [2024-11-09 06:20:05,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:05" (1/1) ... [2024-11-09 06:20:05,587 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:05" (1/1) ... [2024-11-09 06:20:05,587 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:05" (1/1) ... [2024-11-09 06:20:05,595 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:05" (1/1) ... [2024-11-09 06:20:05,609 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:05" (1/1) ... [2024-11-09 06:20:05,614 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:05" (1/1) ... [2024-11-09 06:20:05,616 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:05" (1/1) ... [2024-11-09 06:20:05,621 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:20:05,626 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:20:05,626 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:20:05,626 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:20:05,631 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:05" (1/1) ... [2024-11-09 06:20:05,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:20:05,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:20:05,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:20:05,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:20:05,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:20:05,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:20:05,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:20:05,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:20:05,760 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:20:05,762 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:20:06,558 INFO L? ?]: Removed 74 outVars from TransFormulas that were not future-live. [2024-11-09 06:20:06,558 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:20:06,774 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:20:06,774 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:20:06,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:20:06 BoogieIcfgContainer [2024-11-09 06:20:06,775 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:20:06,777 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:20:06,778 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:20:06,781 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:20:06,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:20:05" (1/3) ... [2024-11-09 06:20:06,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f41642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:20:06, skipping insertion in model container [2024-11-09 06:20:06,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:20:05" (2/3) ... [2024-11-09 06:20:06,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f41642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:20:06, skipping insertion in model container [2024-11-09 06:20:06,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:20:06" (3/3) ... [2024-11-09 06:20:06,784 INFO L112 eAbstractionObserver]: Analyzing ICFG gj2007.c.i.p+nlh-reducer.c [2024-11-09 06:20:06,804 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:20:06,805 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:20:06,879 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:20:06,886 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;@2ac1c98d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:20:06,886 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:20:06,891 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 72 states have (on average 1.9722222222222223) internal successors, (142), 73 states have internal predecessors, (142), 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 06:20:06,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 06:20:06,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:06,900 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:06,901 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:20:06,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:06,906 INFO L85 PathProgramCache]: Analyzing trace with hash 969685416, now seen corresponding path program 1 times [2024-11-09 06:20:06,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:06,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073783585] [2024-11-09 06:20:06,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:06,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:07,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:15,825 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 06:20:15,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:15,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073783585] [2024-11-09 06:20:15,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073783585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:15,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:15,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [] total 69 [2024-11-09 06:20:15,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080721485] [2024-11-09 06:20:15,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:15,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2024-11-09 06:20:15,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:15,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2024-11-09 06:20:15,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=4626, Unknown=0, NotChecked=0, Total=4830 [2024-11-09 06:20:15,880 INFO L87 Difference]: Start difference. First operand has 74 states, 72 states have (on average 1.9722222222222223) internal successors, (142), 73 states have internal predecessors, (142), 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 70 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 69 states have internal predecessors, (71), 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 06:20:18,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:18,387 INFO L93 Difference]: Finished difference Result 80 states and 149 transitions. [2024-11-09 06:20:18,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-09 06:20:18,392 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 69 states have internal predecessors, (71), 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 71 [2024-11-09 06:20:18,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:18,403 INFO L225 Difference]: With dead ends: 80 [2024-11-09 06:20:18,403 INFO L226 Difference]: Without dead ends: 73 [2024-11-09 06:20:18,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=204, Invalid=4626, Unknown=0, NotChecked=0, Total=4830 [2024-11-09 06:20:18,414 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 4634 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 4701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:18,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 4701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 4634 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 06:20:18,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-09 06:20:18,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-09 06:20:18,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.0138888888888888) internal successors, (73), 72 states have internal predecessors, (73), 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 06:20:18,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2024-11-09 06:20:18,459 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 71 [2024-11-09 06:20:18,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:18,460 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 73 transitions. [2024-11-09 06:20:18,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 69 states have internal predecessors, (71), 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 06:20:18,461 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2024-11-09 06:20:18,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 06:20:18,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:18,465 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:18,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:20:18,466 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:20:18,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:18,466 INFO L85 PathProgramCache]: Analyzing trace with hash 4828770, now seen corresponding path program 1 times [2024-11-09 06:20:18,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:18,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382632813] [2024-11-09 06:20:18,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:18,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:24,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:24,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:24,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382632813] [2024-11-09 06:20:24,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382632813] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:20:24,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271770584] [2024-11-09 06:20:24,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:24,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:20:24,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:20:24,973 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:20:24,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:20:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:25,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-09 06:20:25,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:20:25,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:25,444 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:20:31,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:20:31,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271770584] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:20:31,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1818521088] [2024-11-09 06:20:31,900 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2024-11-09 06:20:31,901 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:20:31,904 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:20:31,909 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:20:31,909 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:20:32,510 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:20:44,695 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '868#(and (<= 1 |#StackHeapBarrier|) (= ~__return_1121~0 0) (= ~__return_main~0 0))' at error location [2024-11-09 06:20:44,695 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:20:44,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:20:44,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70, 70] total 139 [2024-11-09 06:20:44,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719471239] [2024-11-09 06:20:44,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:20:44,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 140 states [2024-11-09 06:20:44,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:44,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2024-11-09 06:20:44,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10950, Invalid=32940, Unknown=0, NotChecked=0, Total=43890 [2024-11-09 06:20:44,719 INFO L87 Difference]: Start difference. First operand 73 states and 73 transitions. Second operand has 140 states, 140 states have (on average 1.0285714285714285) internal successors, (144), 139 states have internal predecessors, (144), 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 06:20:46,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:46,607 INFO L93 Difference]: Finished difference Result 108 states and 139 transitions. [2024-11-09 06:20:46,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2024-11-09 06:20:46,608 INFO L78 Accepts]: Start accepts. Automaton has has 140 states, 140 states have (on average 1.0285714285714285) internal successors, (144), 139 states have internal predecessors, (144), 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 72 [2024-11-09 06:20:46,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:46,609 INFO L225 Difference]: With dead ends: 108 [2024-11-09 06:20:46,609 INFO L226 Difference]: Without dead ends: 105 [2024-11-09 06:20:46,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15058 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=10950, Invalid=32940, Unknown=0, NotChecked=0, Total=43890 [2024-11-09 06:20:46,616 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3290 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 3387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 3290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:46,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 3387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 3290 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 06:20:46,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-09 06:20:46,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-09 06:20:46,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.0096153846153846) internal successors, (105), 104 states have internal predecessors, (105), 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 06:20:46,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 105 transitions. [2024-11-09 06:20:46,630 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 105 transitions. Word has length 72 [2024-11-09 06:20:46,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:46,631 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 105 transitions. [2024-11-09 06:20:46,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 140 states, 140 states have (on average 1.0285714285714285) internal successors, (144), 139 states have internal predecessors, (144), 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 06:20:46,631 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2024-11-09 06:20:46,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 06:20:46,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:46,635 INFO L215 NwaCegarLoop]: trace histogram [33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:46,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 06:20:46,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-09 06:20:46,836 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:20:46,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:46,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1497351582, now seen corresponding path program 2 times [2024-11-09 06:20:46,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:46,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635113921] [2024-11-09 06:20:46,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:46,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:21:02,831 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:21:02,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:21:02,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635113921] [2024-11-09 06:21:02,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635113921] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:21:02,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429650119] [2024-11-09 06:21:02,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:21:02,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:21:02,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:21:02,836 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:21:02,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:21:03,051 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2024-11-09 06:21:03,051 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:21:03,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 111 conjuncts are in the unsatisfiable core [2024-11-09 06:21:03,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:21:09,006 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:21:09,006 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:23:11,095 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:23:11,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429650119] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:23:11,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [413647811] [2024-11-09 06:23:11,099 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2024-11-09 06:23:11,099 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:23:11,099 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:23:11,100 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:23:11,100 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:23:11,503 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:23:34,946 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2026#(and (<= 1 |#StackHeapBarrier|) (= ~__return_1121~0 0) (= ~__return_main~0 0))' at error location [2024-11-09 06:23:34,946 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:23:34,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:23:34,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [103, 103, 103] total 256 [2024-11-09 06:23:34,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820170638] [2024-11-09 06:23:34,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:23:34,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 257 states [2024-11-09 06:23:34,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:34,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 257 interpolants. [2024-11-09 06:23:34,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10614, Invalid=95988, Unknown=0, NotChecked=0, Total=106602 [2024-11-09 06:23:34,961 INFO L87 Difference]: Start difference. First operand 105 states and 105 transitions. Second operand has 257 states, 257 states have (on average 1.0077821011673151) internal successors, (259), 256 states have internal predecessors, (259), 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 06:23:50,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:50,737 INFO L93 Difference]: Finished difference Result 107 states and 108 transitions. [2024-11-09 06:23:50,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2024-11-09 06:23:50,738 INFO L78 Accepts]: Start accepts. Automaton has has 257 states, 257 states have (on average 1.0077821011673151) internal successors, (259), 256 states have internal predecessors, (259), 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 104 [2024-11-09 06:23:50,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:50,739 INFO L225 Difference]: With dead ends: 107 [2024-11-09 06:23:50,739 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 06:23:50,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 325 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29273 ImplicationChecksByTransitivity, 88.3s TimeCoverageRelationStatistics Valid=10614, Invalid=95988, Unknown=0, NotChecked=0, Total=106602 [2024-11-09 06:23:50,745 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:50,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 13165 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 13164 Invalid, 0 Unknown, 0 Unchecked, 15.4s Time] [2024-11-09 06:23:50,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 06:23:50,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 06:23:50,746 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 06:23:50,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 06:23:50,746 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2024-11-09 06:23:50,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:50,747 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 06:23:50,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 257 states, 257 states have (on average 1.0077821011673151) internal successors, (259), 256 states have internal predecessors, (259), 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 06:23:50,747 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 06:23:50,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 06:23:50,750 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:23:50,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 06:23:50,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:23:50,954 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-09 06:23:50,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 06:23:50,962 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:23:50,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:23:50 BoogieIcfgContainer [2024-11-09 06:23:50,969 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:23:50,969 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:23:50,970 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:23:50,970 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:23:50,970 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:20:06" (3/4) ... [2024-11-09 06:23:50,974 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 06:23:50,992 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2024-11-09 06:23:50,993 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 06:23:50,994 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 06:23:50,995 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 06:23:51,165 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 06:23:51,166 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 06:23:51,166 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:23:51,166 INFO L158 Benchmark]: Toolchain (without parser) took 226162.27ms. Allocated memory was 155.2MB in the beginning and 1.1GB in the end (delta: 987.8MB). Free memory was 112.6MB in the beginning and 659.9MB in the end (delta: -547.3MB). Peak memory consumption was 441.6MB. Max. memory is 16.1GB. [2024-11-09 06:23:51,167 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 155.2MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:23:51,167 INFO L158 Benchmark]: CACSL2BoogieTranslator took 489.75ms. Allocated memory is still 155.2MB. Free memory was 112.6MB in the beginning and 89.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 06:23:51,167 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.08ms. Allocated memory is still 155.2MB. Free memory was 89.5MB in the beginning and 86.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:23:51,168 INFO L158 Benchmark]: Boogie Preprocessor took 55.07ms. Allocated memory is still 155.2MB. Free memory was 86.9MB in the beginning and 84.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:23:51,169 INFO L158 Benchmark]: RCFGBuilder took 1148.97ms. Allocated memory was 155.2MB in the beginning and 190.8MB in the end (delta: 35.7MB). Free memory was 84.3MB in the beginning and 93.9MB in the end (delta: -9.6MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2024-11-09 06:23:51,169 INFO L158 Benchmark]: TraceAbstraction took 224191.59ms. Allocated memory was 190.8MB in the beginning and 1.1GB in the end (delta: 952.1MB). Free memory was 92.8MB in the beginning and 670.8MB in the end (delta: -577.9MB). Peak memory consumption was 373.5MB. Max. memory is 16.1GB. [2024-11-09 06:23:51,170 INFO L158 Benchmark]: Witness Printer took 196.45ms. Allocated memory is still 1.1GB. Free memory was 670.8MB in the beginning and 659.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 06:23:51,174 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 155.2MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 489.75ms. Allocated memory is still 155.2MB. Free memory was 112.6MB in the beginning and 89.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.08ms. Allocated memory is still 155.2MB. Free memory was 89.5MB in the beginning and 86.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.07ms. Allocated memory is still 155.2MB. Free memory was 86.9MB in the beginning and 84.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1148.97ms. Allocated memory was 155.2MB in the beginning and 190.8MB in the end (delta: 35.7MB). Free memory was 84.3MB in the beginning and 93.9MB in the end (delta: -9.6MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. * TraceAbstraction took 224191.59ms. Allocated memory was 190.8MB in the beginning and 1.1GB in the end (delta: 952.1MB). Free memory was 92.8MB in the beginning and 670.8MB in the end (delta: -577.9MB). Peak memory consumption was 373.5MB. Max. memory is 16.1GB. * Witness Printer took 196.45ms. Allocated memory is still 1.1GB. Free memory was 670.8MB in the beginning and 659.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. 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: 444]: 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, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 224.1s, OverallIterations: 3, TraceHistogramMax: 33, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 20.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 19.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 17.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 85 mSDsCounter, 165 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21088 IncrementalHoareTripleChecker+Invalid, 21253 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 165 mSolverCounterUnsat, 7 mSDtfsCounter, 21088 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 766 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 601 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44331 ImplicationChecksByTransitivity, 110.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=2, InterpolantAutomatonStates: 276, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 165.5s InterpolantComputationTime, 423 NumberOfCodeBlocks, 423 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 592 ConstructedInterpolants, 0 QuantifiedInterpolants, 15262 SizeOfPredicates, 1 NumberOfNonLiveVariables, 410 ConjunctsInSsa, 182 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1686 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 06:23:51,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919b34c1-67b7-4d23-941d-36ff61efe706/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE