./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --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 3bdeae46dbc756a421cd87ce74cf66692dd63be4319bd9b008f470e9866099a9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:32:24,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:32:24,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:32:24,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:32:24,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:32:24,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:32:24,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:32:24,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:32:24,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:32:24,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:32:24,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:32:24,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:32:24,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:32:24,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:32:24,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:32:24,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:32:24,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:32:24,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:32:24,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:32:24,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:32:24,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:32:24,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:32:24,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:32:24,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:32:24,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:32:24,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:32:24,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:32:24,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:32:24,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:32:24,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:32:24,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:32:24,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:32:24,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:32:24,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:32:24,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:32:24,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:32:24,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:32:24,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:32:24,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:32:24,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:32:24,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:32:24,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 13:32:24,377 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:32:24,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:32:24,378 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:32:24,378 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:32:24,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:32:24,379 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:32:24,379 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:32:24,379 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:32:24,380 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:32:24,380 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:32:24,380 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:32:24,380 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:32:24,380 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:32:24,380 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:32:24,381 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:32:24,381 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:32:24,381 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:32:24,381 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:32:24,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:32:24,382 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:32:24,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:32:24,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:32:24,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:32:24,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:32:24,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:32:24,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:32:24,383 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:32:24,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:32:24,383 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:32:24,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:32:24,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:32:24,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:32:24,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:32:24,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:32:24,384 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:32:24,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:32:24,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:32:24,384 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:32:24,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:32:24,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:32:24,385 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:32:24,385 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bdeae46dbc756a421cd87ce74cf66692dd63be4319bd9b008f470e9866099a9 [2022-12-14 13:32:24,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:32:24,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:32:24,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:32:24,558 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:32:24,559 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:32:24,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i [2022-12-14 13:32:27,098 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:32:27,213 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:32:27,214 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i [2022-12-14 13:32:27,218 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/data/db3a180dd/a9fc064b79374c3792ba856fd5b12c06/FLAGc7e93db22 [2022-12-14 13:32:27,232 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/data/db3a180dd/a9fc064b79374c3792ba856fd5b12c06 [2022-12-14 13:32:27,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:32:27,236 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:32:27,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:32:27,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:32:27,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:32:27,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:32:27" (1/1) ... [2022-12-14 13:32:27,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46e73a48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:27, skipping insertion in model container [2022-12-14 13:32:27,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:32:27" (1/1) ... [2022-12-14 13:32:27,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:32:27,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:32:27,376 WARN L237 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_39f75053-7e76-4d61-bd63-d1a2b1ca453e/sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i[873,886] [2022-12-14 13:32:27,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:32:27,391 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:32:27,400 WARN L237 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_39f75053-7e76-4d61-bd63-d1a2b1ca453e/sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i[873,886] [2022-12-14 13:32:27,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:32:27,415 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:32:27,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:27 WrapperNode [2022-12-14 13:32:27,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:32:27,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:32:27,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:32:27,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:32:27,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:27" (1/1) ... [2022-12-14 13:32:27,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:27" (1/1) ... [2022-12-14 13:32:27,439 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-12-14 13:32:27,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:32:27,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:32:27,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:32:27,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:32:27,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:27" (1/1) ... [2022-12-14 13:32:27,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:27" (1/1) ... [2022-12-14 13:32:27,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:27" (1/1) ... [2022-12-14 13:32:27,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:27" (1/1) ... [2022-12-14 13:32:27,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:27" (1/1) ... [2022-12-14 13:32:27,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:27" (1/1) ... [2022-12-14 13:32:27,456 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:27" (1/1) ... [2022-12-14 13:32:27,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:27" (1/1) ... [2022-12-14 13:32:27,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:32:27,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:32:27,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:32:27,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:32:27,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:27" (1/1) ... [2022-12-14 13:32:27,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:32:27,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:32:27,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:32:27,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:32:27,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:32:27,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:32:27,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:32:27,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:32:27,574 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:32:27,576 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:32:27,660 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:32:27,678 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:32:27,678 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 13:32:27,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:32:27 BoogieIcfgContainer [2022-12-14 13:32:27,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:32:27,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:32:27,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:32:27,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:32:27,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:32:27" (1/3) ... [2022-12-14 13:32:27,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6e434e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:32:27, skipping insertion in model container [2022-12-14 13:32:27,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:27" (2/3) ... [2022-12-14 13:32:27,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6e434e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:32:27, skipping insertion in model container [2022-12-14 13:32:27,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:32:27" (3/3) ... [2022-12-14 13:32:27,690 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark37_conjunctive.i [2022-12-14 13:32:27,710 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:32:27,710 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 13:32:27,751 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:32:27,758 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@2714a1db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:32:27,758 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 13:32:27,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:32:27,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 13:32:27,768 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:32:27,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 13:32:27,769 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:32:27,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:32:27,774 INFO L85 PathProgramCache]: Analyzing trace with hash 59349214, now seen corresponding path program 1 times [2022-12-14 13:32:27,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:32:27,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903675810] [2022-12-14 13:32:27,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:27,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:32:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:27,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:32:27,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:32:27,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903675810] [2022-12-14 13:32:27,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903675810] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:32:27,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:32:27,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:32:27,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28755530] [2022-12-14 13:32:27,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:32:27,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:32:27,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:32:28,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:32:28,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:32:28,012 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:32:28,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:32:28,060 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-12-14 13:32:28,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:32:28,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 13:32:28,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:32:28,070 INFO L225 Difference]: With dead ends: 21 [2022-12-14 13:32:28,071 INFO L226 Difference]: Without dead ends: 7 [2022-12-14 13:32:28,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:32:28,077 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:32:28,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 12 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:32:28,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-12-14 13:32:28,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-12-14 13:32:28,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:32:28,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-12-14 13:32:28,102 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2022-12-14 13:32:28,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:32:28,103 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-12-14 13:32:28,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:32:28,103 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-12-14 13:32:28,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 13:32:28,104 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:32:28,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 13:32:28,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:32:28,104 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:32:28,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:32:28,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1839242300, now seen corresponding path program 1 times [2022-12-14 13:32:28,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:32:28,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184915894] [2022-12-14 13:32:28,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:28,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:32:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:28,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:32:28,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:32:28,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184915894] [2022-12-14 13:32:28,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184915894] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:32:28,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719924026] [2022-12-14 13:32:28,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:28,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:32:28,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:32:28,212 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:32:28,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:32:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:28,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 13:32:28,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:32:28,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:32:28,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:32:28,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:32:28,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719924026] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:32:28,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1921787802] [2022-12-14 13:32:28,355 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-12-14 13:32:28,355 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:32:28,358 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:32:28,362 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:32:28,362 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:32:28,410 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:32:28,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1921787802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:32:28,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:32:28,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 5] total 10 [2022-12-14 13:32:28,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063507912] [2022-12-14 13:32:28,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:32:28,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:32:28,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:32:28,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:32:28,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-14 13:32:28,588 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-12-14 13:32:28,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:32:28,603 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2022-12-14 13:32:28,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:32:28,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2022-12-14 13:32:28,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:32:28,604 INFO L225 Difference]: With dead ends: 7 [2022-12-14 13:32:28,604 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 13:32:28,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-14 13:32:28,606 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:32:28,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:32:28,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 13:32:28,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 13:32:28,608 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) [2022-12-14 13:32:28,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 13:32:28,608 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2022-12-14 13:32:28,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:32:28,608 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 13:32:28,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-12-14 13:32:28,609 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 13:32:28,609 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 13:32:28,611 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 13:32:28,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:32:28,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:32:28,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 13:32:28,883 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 13:32:28,884 INFO L895 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (= 26 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-12-14 13:32:28,884 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2022-12-14 13:32:28,884 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 13:32:28,884 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 19 29) the Hoare annotation is: true [2022-12-14 13:32:28,884 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2022-12-14 13:32:28,884 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2022-12-14 13:32:28,884 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-12-14 13:32:28,885 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2022-12-14 13:32:28,888 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 13:32:28,890 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:32:28,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:32:28 BoogieIcfgContainer [2022-12-14 13:32:28,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:32:28,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:32:28,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:32:28,907 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:32:28,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:32:27" (3/4) ... [2022-12-14 13:32:28,910 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 13:32:28,918 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-14 13:32:28,918 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 13:32:28,918 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 13:32:28,919 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 13:32:28,948 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 13:32:28,949 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:32:28,949 INFO L158 Benchmark]: Toolchain (without parser) took 1713.22ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 91.8MB in the beginning and 99.6MB in the end (delta: -7.8MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2022-12-14 13:32:28,950 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:32:28,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.54ms. Allocated memory is still 134.2MB. Free memory was 91.8MB in the beginning and 81.8MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 13:32:28,950 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.77ms. Allocated memory is still 134.2MB. Free memory was 81.8MB in the beginning and 80.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:32:28,951 INFO L158 Benchmark]: Boogie Preprocessor took 17.34ms. Allocated memory is still 134.2MB. Free memory was 80.3MB in the beginning and 79.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:32:28,951 INFO L158 Benchmark]: RCFGBuilder took 223.00ms. Allocated memory is still 134.2MB. Free memory was 79.2MB in the beginning and 69.4MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 13:32:28,951 INFO L158 Benchmark]: TraceAbstraction took 1223.04ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 68.7MB in the beginning and 101.7MB in the end (delta: -33.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2022-12-14 13:32:28,952 INFO L158 Benchmark]: Witness Printer took 41.85ms. Allocated memory is still 188.7MB. Free memory was 101.7MB in the beginning and 99.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:32:28,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.54ms. Allocated memory is still 134.2MB. Free memory was 91.8MB in the beginning and 81.8MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.77ms. Allocated memory is still 134.2MB. Free memory was 81.8MB in the beginning and 80.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.34ms. Allocated memory is still 134.2MB. Free memory was 80.3MB in the beginning and 79.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 223.00ms. Allocated memory is still 134.2MB. Free memory was 79.2MB in the beginning and 69.4MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1223.04ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 68.7MB in the beginning and 101.7MB in the end (delta: -33.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Witness Printer took 41.85ms. Allocated memory is still 188.7MB. Free memory was 101.7MB in the beginning and 99.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 59 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 62 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 4 NumberOfNonLiveVariables, 41 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 0.1s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 5, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 5, TOOLS_POST_TIME: 0.0s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 5, TOOLS_QUANTIFIERELIM_TIME: 0.0s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 13, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 33, DAG_COMPRESSION_RETAINED_NODES: 18, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((((((((((x == y && 0 <= y) && 26 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && y <= 2147483647) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2022-12-14 13:32:28,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f75053-7e76-4d61-bd63-d1a2b1ca453e/bin/utaipan-gh47qXpMRh/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