./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label17.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a498e5ff-f9b6-439b-84bb-003c3b258cbf/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a498e5ff-f9b6-439b-84bb-003c3b258cbf/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a498e5ff-f9b6-439b-84bb-003c3b258cbf/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a498e5ff-f9b6-439b-84bb-003c3b258cbf/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a498e5ff-f9b6-439b-84bb-003c3b258cbf/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a498e5ff-f9b6-439b-84bb-003c3b258cbf/bin/utaipan-verify-DbMuA5NWw2 --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 d3602c5801c05a09989d37521ec0a56c80d33e64222732bb3b7051e65443f9ad --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:35:46,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:35:46,276 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a498e5ff-f9b6-439b-84bb-003c3b258cbf/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:35:46,281 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:35:46,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:35:46,315 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:35:46,316 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:35:46,316 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:35:46,317 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:35:46,317 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:35:46,318 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:35:46,318 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:35:46,319 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:35:46,319 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:35:46,320 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:35:46,320 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:35:46,320 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:35:46,321 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:35:46,321 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:35:46,322 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:35:46,322 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:35:46,323 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:35:46,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:35:46,324 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:35:46,324 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:35:46,325 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:35:46,325 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:35:46,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:35:46,326 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:35:46,326 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:35:46,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:35:46,327 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:35:46,327 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:35:46,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:35:46,328 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:35:46,328 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:35:46,329 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:35:46,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:35:46,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:35:46,330 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:35:46,330 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:35:46,331 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:35:46,331 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:35:46,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:35:46,332 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:35:46,332 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:35:46,332 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:35:46,332 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_a498e5ff-f9b6-439b-84bb-003c3b258cbf/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a498e5ff-f9b6-439b-84bb-003c3b258cbf/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3602c5801c05a09989d37521ec0a56c80d33e64222732bb3b7051e65443f9ad [2024-11-02 12:35:46,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:35:46,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:35:46,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:35:46,649 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:35:46,650 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:35:46,651 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a498e5ff-f9b6-439b-84bb-003c3b258cbf/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/eca-rers2012/Problem02_label17.c Unable to find full path for "g++" [2024-11-02 12:35:48,879 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:35:49,173 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:35:49,174 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a498e5ff-f9b6-439b-84bb-003c3b258cbf/sv-benchmarks/c/eca-rers2012/Problem02_label17.c [2024-11-02 12:35:49,190 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a498e5ff-f9b6-439b-84bb-003c3b258cbf/bin/utaipan-verify-DbMuA5NWw2/data/f9a5974b8/ea4a88c8a4c3475196bfa23a6545855a/FLAG88ef37b9a [2024-11-02 12:35:49,209 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a498e5ff-f9b6-439b-84bb-003c3b258cbf/bin/utaipan-verify-DbMuA5NWw2/data/f9a5974b8/ea4a88c8a4c3475196bfa23a6545855a [2024-11-02 12:35:49,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:35:49,214 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:35:49,215 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:35:49,215 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:35:49,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:35:49,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:35:49" (1/1) ... [2024-11-02 12:35:49,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e5cab32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:49, skipping insertion in model container [2024-11-02 12:35:49,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:35:49" (1/1) ... [2024-11-02 12:35:49,273 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:35:49,636 WARN L251 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_a498e5ff-f9b6-439b-84bb-003c3b258cbf/sv-benchmarks/c/eca-rers2012/Problem02_label17.c[18943,18956] [2024-11-02 12:35:49,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:35:49,678 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:35:49,800 WARN L251 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_a498e5ff-f9b6-439b-84bb-003c3b258cbf/sv-benchmarks/c/eca-rers2012/Problem02_label17.c[18943,18956] [2024-11-02 12:35:49,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:35:49,854 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:35:49,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:49 WrapperNode [2024-11-02 12:35:49,855 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:35:49,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:35:49,856 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:35:49,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:35:49,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:49" (1/1) ... [2024-11-02 12:35:49,878 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:49" (1/1) ... [2024-11-02 12:35:49,963 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 669 [2024-11-02 12:35:49,968 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:35:49,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:35:49,969 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:35:49,969 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:35:49,979 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:49" (1/1) ... [2024-11-02 12:35:49,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:49" (1/1) ... [2024-11-02 12:35:49,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:49" (1/1) ... [2024-11-02 12:35:49,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:49" (1/1) ... [2024-11-02 12:35:50,016 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:49" (1/1) ... [2024-11-02 12:35:50,032 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:49" (1/1) ... [2024-11-02 12:35:50,039 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:49" (1/1) ... [2024-11-02 12:35:50,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:49" (1/1) ... [2024-11-02 12:35:50,061 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:35:50,062 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:35:50,062 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:35:50,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:35:50,067 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:49" (1/1) ... [2024-11-02 12:35:50,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:35:50,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a498e5ff-f9b6-439b-84bb-003c3b258cbf/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:50,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a498e5ff-f9b6-439b-84bb-003c3b258cbf/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:35:50,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a498e5ff-f9b6-439b-84bb-003c3b258cbf/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:35:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:35:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:35:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:35:50,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:35:50,236 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:35:50,238 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:35:51,469 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-02 12:35:51,469 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:35:51,821 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:35:51,822 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:35:51,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:35:51 BoogieIcfgContainer [2024-11-02 12:35:51,823 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:35:51,826 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:35:51,827 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:35:51,830 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:35:51,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:35:49" (1/3) ... [2024-11-02 12:35:51,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b9ac05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:35:51, skipping insertion in model container [2024-11-02 12:35:51,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:49" (2/3) ... [2024-11-02 12:35:51,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b9ac05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:35:51, skipping insertion in model container [2024-11-02 12:35:51,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:35:51" (3/3) ... [2024-11-02 12:35:51,835 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label17.c [2024-11-02 12:35:51,854 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:35:51,855 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:35:51,932 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:35:51,940 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;@67567a82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:35:51,940 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:35:51,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 84 states have internal predecessors, (162), 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) [2024-11-02 12:35:51,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-02 12:35:51,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:51,956 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:51,957 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:35:51,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:51,964 INFO L85 PathProgramCache]: Analyzing trace with hash 672078805, now seen corresponding path program 1 times [2024-11-02 12:35:51,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:51,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777528595] [2024-11-02 12:35:51,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:51,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:52,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:52,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:52,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777528595] [2024-11-02 12:35:52,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777528595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:52,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:52,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:35:52,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864015224] [2024-11-02 12:35:52,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:52,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:52,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:52,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:52,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:52,725 INFO L87 Difference]: Start difference. First operand has 85 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 84 states have internal predecessors, (162), 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 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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) [2024-11-02 12:35:53,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:53,296 INFO L93 Difference]: Finished difference Result 251 states and 482 transitions. [2024-11-02 12:35:53,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:53,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2024-11-02 12:35:53,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:53,313 INFO L225 Difference]: With dead ends: 251 [2024-11-02 12:35:53,313 INFO L226 Difference]: Without dead ends: 163 [2024-11-02 12:35:53,317 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 [2024-11-02 12:35:53,321 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 58 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:53,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 11 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-02 12:35:53,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-02 12:35:53,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2024-11-02 12:35:53,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.9320987654320987) internal successors, (313), 162 states have internal predecessors, (313), 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) [2024-11-02 12:35:53,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 313 transitions. [2024-11-02 12:35:53,389 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 313 transitions. Word has length 80 [2024-11-02 12:35:53,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:53,390 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 313 transitions. [2024-11-02 12:35:53,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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) [2024-11-02 12:35:53,391 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 313 transitions. [2024-11-02 12:35:53,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-02 12:35:53,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:53,394 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2024-11-02 12:35:53,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:35:53,395 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:35:53,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:53,395 INFO L85 PathProgramCache]: Analyzing trace with hash 2025368683, now seen corresponding path program 1 times [2024-11-02 12:35:53,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:53,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306103637] [2024-11-02 12:35:53,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:53,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:53,617 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:53,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:53,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306103637] [2024-11-02 12:35:53,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306103637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:53,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:53,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:35:53,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386710914] [2024-11-02 12:35:53,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:53,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:53,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:53,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:53,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:53,623 INFO L87 Difference]: Start difference. First operand 163 states and 313 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) [2024-11-02 12:35:54,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:54,135 INFO L93 Difference]: Finished difference Result 485 states and 936 transitions. [2024-11-02 12:35:54,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:54,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 91 [2024-11-02 12:35:54,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:54,139 INFO L225 Difference]: With dead ends: 485 [2024-11-02 12:35:54,139 INFO L226 Difference]: Without dead ends: 323 [2024-11-02 12:35:54,140 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 [2024-11-02 12:35:54,141 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 113 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:54,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 21 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-02 12:35:54,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-02 12:35:54,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 243. [2024-11-02 12:35:54,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 242 states have (on average 1.871900826446281) internal successors, (453), 242 states have internal predecessors, (453), 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) [2024-11-02 12:35:54,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 453 transitions. [2024-11-02 12:35:54,161 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 453 transitions. Word has length 91 [2024-11-02 12:35:54,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:54,162 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 453 transitions. [2024-11-02 12:35:54,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) [2024-11-02 12:35:54,163 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 453 transitions. [2024-11-02 12:35:54,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-02 12:35:54,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:54,166 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-02 12:35:54,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:35:54,167 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:35:54,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:54,167 INFO L85 PathProgramCache]: Analyzing trace with hash -227045324, now seen corresponding path program 1 times [2024-11-02 12:35:54,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:54,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599888329] [2024-11-02 12:35:54,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:54,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:54,358 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:54,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:54,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599888329] [2024-11-02 12:35:54,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599888329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:54,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:54,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:35:54,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969342718] [2024-11-02 12:35:54,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:54,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:54,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:54,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:54,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:54,365 INFO L87 Difference]: Start difference. First operand 243 states and 453 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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) [2024-11-02 12:35:54,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:54,772 INFO L93 Difference]: Finished difference Result 725 states and 1356 transitions. [2024-11-02 12:35:54,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:54,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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 98 [2024-11-02 12:35:54,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:54,775 INFO L225 Difference]: With dead ends: 725 [2024-11-02 12:35:54,775 INFO L226 Difference]: Without dead ends: 483 [2024-11-02 12:35:54,777 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 [2024-11-02 12:35:54,781 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 79 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:54,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 64 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:35:54,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-02 12:35:54,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 403. [2024-11-02 12:35:54,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 402 states have (on average 1.7860696517412935) internal successors, (718), 402 states have internal predecessors, (718), 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) [2024-11-02 12:35:54,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 718 transitions. [2024-11-02 12:35:54,824 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 718 transitions. Word has length 98 [2024-11-02 12:35:54,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:54,825 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 718 transitions. [2024-11-02 12:35:54,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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) [2024-11-02 12:35:54,825 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 718 transitions. [2024-11-02 12:35:54,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-02 12:35:54,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:54,833 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-02 12:35:54,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:35:54,834 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:35:54,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:54,835 INFO L85 PathProgramCache]: Analyzing trace with hash 19307710, now seen corresponding path program 1 times [2024-11-02 12:35:54,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:54,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187232585] [2024-11-02 12:35:54,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:54,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:54,995 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:54,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:54,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187232585] [2024-11-02 12:35:54,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187232585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:54,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:54,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:35:54,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910296403] [2024-11-02 12:35:54,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:54,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:54,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:55,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:55,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:55,001 INFO L87 Difference]: Start difference. First operand 403 states and 718 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 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) [2024-11-02 12:35:55,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:55,464 INFO L93 Difference]: Finished difference Result 1205 states and 2151 transitions. [2024-11-02 12:35:55,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:55,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 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 102 [2024-11-02 12:35:55,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:55,468 INFO L225 Difference]: With dead ends: 1205 [2024-11-02 12:35:55,469 INFO L226 Difference]: Without dead ends: 803 [2024-11-02 12:35:55,470 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 [2024-11-02 12:35:55,471 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 97 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:55,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 30 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:35:55,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2024-11-02 12:35:55,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 723. [2024-11-02 12:35:55,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 722 states have (on average 1.6454293628808865) internal successors, (1188), 722 states have internal predecessors, (1188), 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) [2024-11-02 12:35:55,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1188 transitions. [2024-11-02 12:35:55,507 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1188 transitions. Word has length 102 [2024-11-02 12:35:55,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:55,508 INFO L471 AbstractCegarLoop]: Abstraction has 723 states and 1188 transitions. [2024-11-02 12:35:55,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 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) [2024-11-02 12:35:55,509 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1188 transitions. [2024-11-02 12:35:55,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-02 12:35:55,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:55,517 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-02 12:35:55,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 12:35:55,517 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:35:55,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:55,518 INFO L85 PathProgramCache]: Analyzing trace with hash 277610972, now seen corresponding path program 1 times [2024-11-02 12:35:55,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:55,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977729254] [2024-11-02 12:35:55,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:55,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:55,962 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-02 12:35:55,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:55,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977729254] [2024-11-02 12:35:55,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977729254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:55,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:55,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:35:55,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65630034] [2024-11-02 12:35:55,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:55,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:55,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:55,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:55,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:55,967 INFO L87 Difference]: Start difference. First operand 723 states and 1188 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 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) [2024-11-02 12:35:56,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:56,404 INFO L93 Difference]: Finished difference Result 1605 states and 2610 transitions. [2024-11-02 12:35:56,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:56,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 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 128 [2024-11-02 12:35:56,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:56,408 INFO L225 Difference]: With dead ends: 1605 [2024-11-02 12:35:56,408 INFO L226 Difference]: Without dead ends: 883 [2024-11-02 12:35:56,409 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 [2024-11-02 12:35:56,410 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:56,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 70 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:35:56,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-11-02 12:35:56,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2024-11-02 12:35:56,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.5453514739229024) internal successors, (1363), 882 states have internal predecessors, (1363), 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) [2024-11-02 12:35:56,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1363 transitions. [2024-11-02 12:35:56,443 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1363 transitions. Word has length 128 [2024-11-02 12:35:56,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:56,443 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1363 transitions. [2024-11-02 12:35:56,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 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) [2024-11-02 12:35:56,444 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1363 transitions. [2024-11-02 12:35:56,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-02 12:35:56,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:56,447 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-02 12:35:56,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-02 12:35:56,448 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:35:56,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:56,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1538520253, now seen corresponding path program 1 times [2024-11-02 12:35:56,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:56,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895778255] [2024-11-02 12:35:56,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:56,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:56,697 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-02 12:35:56,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:56,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895778255] [2024-11-02 12:35:56,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895778255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:56,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:56,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:35:56,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816068366] [2024-11-02 12:35:56,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:56,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:56,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:56,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:56,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:56,700 INFO L87 Difference]: Start difference. First operand 883 states and 1363 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-11-02 12:35:57,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:57,175 INFO L93 Difference]: Finished difference Result 2245 states and 3460 transitions. [2024-11-02 12:35:57,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:57,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 133 [2024-11-02 12:35:57,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:57,181 INFO L225 Difference]: With dead ends: 2245 [2024-11-02 12:35:57,181 INFO L226 Difference]: Without dead ends: 1363 [2024-11-02 12:35:57,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:57,184 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 77 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:57,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 139 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:35:57,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2024-11-02 12:35:57,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1363. [2024-11-02 12:35:57,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1362 states have (on average 1.4045521292217327) internal successors, (1913), 1362 states have internal predecessors, (1913), 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) [2024-11-02 12:35:57,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1913 transitions. [2024-11-02 12:35:57,217 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1913 transitions. Word has length 133 [2024-11-02 12:35:57,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:57,217 INFO L471 AbstractCegarLoop]: Abstraction has 1363 states and 1913 transitions. [2024-11-02 12:35:57,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-11-02 12:35:57,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1913 transitions. [2024-11-02 12:35:57,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-02 12:35:57,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:57,222 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2024-11-02 12:35:57,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-02 12:35:57,222 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:35:57,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:57,223 INFO L85 PathProgramCache]: Analyzing trace with hash -87223139, now seen corresponding path program 1 times [2024-11-02 12:35:57,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:57,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511649667] [2024-11-02 12:35:57,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:57,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:57,381 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-02 12:35:57,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:57,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511649667] [2024-11-02 12:35:57,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511649667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:57,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:57,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:35:57,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628747522] [2024-11-02 12:35:57,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:57,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:57,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:57,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:57,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:57,384 INFO L87 Difference]: Start difference. First operand 1363 states and 1913 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-11-02 12:35:57,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:57,797 INFO L93 Difference]: Finished difference Result 3203 states and 4429 transitions. [2024-11-02 12:35:57,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:57,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 135 [2024-11-02 12:35:57,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:57,799 INFO L225 Difference]: With dead ends: 3203 [2024-11-02 12:35:57,799 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 12:35:57,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:57,802 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 71 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:57,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 29 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:35:57,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 12:35:57,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 12:35:57,804 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) [2024-11-02 12:35:57,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 12:35:57,804 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 135 [2024-11-02 12:35:57,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:57,804 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 12:35:57,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-11-02 12:35:57,805 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 12:35:57,805 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 12:35:57,808 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:35:57,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-02 12:35:57,811 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:57,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 12:35:57,857 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:35:57,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:35:57 BoogieIcfgContainer [2024-11-02 12:35:57,873 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:35:57,874 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:35:57,874 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:35:57,874 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:35:57,875 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:35:51" (3/4) ... [2024-11-02 12:35:57,878 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-02 12:35:57,892 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 129 nodes and edges [2024-11-02 12:35:57,893 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-02 12:35:57,894 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-02 12:35:57,895 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-02 12:35:58,066 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a498e5ff-f9b6-439b-84bb-003c3b258cbf/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 12:35:58,067 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a498e5ff-f9b6-439b-84bb-003c3b258cbf/bin/utaipan-verify-DbMuA5NWw2/witness.yml [2024-11-02 12:35:58,067 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:35:58,068 INFO L158 Benchmark]: Toolchain (without parser) took 8854.24ms. Allocated memory was 113.2MB in the beginning and 211.8MB in the end (delta: 98.6MB). Free memory was 77.1MB in the beginning and 93.9MB in the end (delta: -16.8MB). Peak memory consumption was 84.5MB. Max. memory is 16.1GB. [2024-11-02 12:35:58,068 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 113.2MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:35:58,069 INFO L158 Benchmark]: CACSL2BoogieTranslator took 640.52ms. Allocated memory is still 113.2MB. Free memory was 76.8MB in the beginning and 48.4MB in the end (delta: 28.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-02 12:35:58,069 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.85ms. Allocated memory was 113.2MB in the beginning and 146.8MB in the end (delta: 33.6MB). Free memory was 48.4MB in the beginning and 115.0MB in the end (delta: -66.6MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2024-11-02 12:35:58,069 INFO L158 Benchmark]: Boogie Preprocessor took 93.11ms. Allocated memory is still 146.8MB. Free memory was 115.0MB in the beginning and 110.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:35:58,070 INFO L158 Benchmark]: RCFGBuilder took 1761.25ms. Allocated memory is still 146.8MB. Free memory was 110.8MB in the beginning and 69.4MB in the end (delta: 41.4MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. [2024-11-02 12:35:58,070 INFO L158 Benchmark]: TraceAbstraction took 6047.84ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 69.4MB in the beginning and 106.5MB in the end (delta: -37.1MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2024-11-02 12:35:58,070 INFO L158 Benchmark]: Witness Printer took 193.28ms. Allocated memory is still 211.8MB. Free memory was 106.5MB in the beginning and 93.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-02 12:35:58,072 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 113.2MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 640.52ms. Allocated memory is still 113.2MB. Free memory was 76.8MB in the beginning and 48.4MB in the end (delta: 28.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.85ms. Allocated memory was 113.2MB in the beginning and 146.8MB in the end (delta: 33.6MB). Free memory was 48.4MB in the beginning and 115.0MB in the end (delta: -66.6MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 93.11ms. Allocated memory is still 146.8MB. Free memory was 115.0MB in the beginning and 110.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1761.25ms. Allocated memory is still 146.8MB. Free memory was 110.8MB in the beginning and 69.4MB in the end (delta: 41.4MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. * TraceAbstraction took 6047.84ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 69.4MB in the beginning and 106.5MB in the end (delta: -37.1MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * Witness Printer took 193.28ms. Allocated memory is still 211.8MB. Free memory was 106.5MB in the beginning and 93.9MB 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: 539]: 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, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 573 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 573 mSDsluCounter, 364 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 430 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1739 IncrementalHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 430 mSolverCounterUnsat, 326 mSDtfsCounter, 1739 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1363occurred in iteration=6, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 240 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 767 NumberOfCodeBlocks, 767 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 760 ConstructedInterpolants, 0 QuantifiedInterpolants, 1106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 294/294 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: 616]: Loop Invariant Derived loop invariant: ((((a11 == 0) && (a25 == 0)) || (a28 < 11)) || (a19 == 1)) RESULT: Ultimate proved your program to be correct! [2024-11-02 12:35:58,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a498e5ff-f9b6-439b-84bb-003c3b258cbf/bin/utaipan-verify-DbMuA5NWw2/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