./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 --- 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-38b53e6 [2022-11-25 15:50:09,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:50:09,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:50:09,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:50:09,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:50:09,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:50:09,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:50:09,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:50:09,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:50:09,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:50:09,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:50:09,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:50:09,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:50:09,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:50:09,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:50:09,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:50:09,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:50:09,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:50:09,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:50:09,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:50:09,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:50:09,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:50:09,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:50:09,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:50:09,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:50:09,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:50:09,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:50:09,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:50:09,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:50:09,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:50:09,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:50:09,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:50:09,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:50:09,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:50:09,575 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:50:09,575 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:50:09,576 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:50:09,576 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:50:09,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:50:09,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:50:09,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:50:09,579 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 15:50:09,617 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:50:09,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:50:09,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:50:09,618 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:50:09,619 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:50:09,620 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:50:09,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:50:09,621 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:50:09,621 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:50:09,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:50:09,622 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:50:09,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:50:09,623 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:50:09,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:50:09,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:50:09,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:50:09,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:50:09,624 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:50:09,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:50:09,625 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:50:09,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:50:09,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:50:09,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:50:09,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:50:09,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:50:09,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:50:09,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:50:09,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:50:09,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:50:09,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:50:09,628 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:50:09,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:50:09,629 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:50:09,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:50:09,629 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 [2022-11-25 15:50:09,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:50:09,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:50:09,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:50:09,945 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:50:09,945 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:50:09,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2022-11-25 15:50:12,957 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:50:13,177 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:50:13,178 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2022-11-25 15:50:13,184 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/data/acb4b9a17/073dd24b00bc447fbb5234900243b5d4/FLAGf3304bae7 [2022-11-25 15:50:13,198 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/data/acb4b9a17/073dd24b00bc447fbb5234900243b5d4 [2022-11-25 15:50:13,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:50:13,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:50:13,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:50:13,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:50:13,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:50:13,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:50:13" (1/1) ... [2022-11-25 15:50:13,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e23e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:13, skipping insertion in model container [2022-11-25 15:50:13,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:50:13" (1/1) ... [2022-11-25 15:50:13,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:50:13,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:50:13,387 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_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c[439,452] [2022-11-25 15:50:13,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:50:13,404 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:50:13,418 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_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c[439,452] [2022-11-25 15:50:13,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:50:13,435 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:50:13,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:13 WrapperNode [2022-11-25 15:50:13,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:50:13,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:50:13,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:50:13,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:50:13,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:13" (1/1) ... [2022-11-25 15:50:13,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:13" (1/1) ... [2022-11-25 15:50:13,469 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-11-25 15:50:13,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:50:13,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:50:13,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:50:13,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:50:13,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:13" (1/1) ... [2022-11-25 15:50:13,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:13" (1/1) ... [2022-11-25 15:50:13,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:13" (1/1) ... [2022-11-25 15:50:13,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:13" (1/1) ... [2022-11-25 15:50:13,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:13" (1/1) ... [2022-11-25 15:50:13,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:13" (1/1) ... [2022-11-25 15:50:13,489 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:13" (1/1) ... [2022-11-25 15:50:13,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:13" (1/1) ... [2022-11-25 15:50:13,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:50:13,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:50:13,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:50:13,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:50:13,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:13" (1/1) ... [2022-11-25 15:50:13,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:50:13,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:50:13,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:50:13,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:50:13,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:50:13,583 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-11-25 15:50:13,583 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-11-25 15:50:13,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:50:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:50:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2022-11-25 15:50:13,584 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2022-11-25 15:50:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:50:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:50:13,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:50:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:50:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:50:13,673 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:50:13,675 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:50:13,842 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:50:13,848 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:50:13,848 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 15:50:13,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:50:13 BoogieIcfgContainer [2022-11-25 15:50:13,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:50:13,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:50:13,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:50:13,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:50:13,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:50:13" (1/3) ... [2022-11-25 15:50:13,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3da85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:50:13, skipping insertion in model container [2022-11-25 15:50:13,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:13" (2/3) ... [2022-11-25 15:50:13,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3da85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:50:13, skipping insertion in model container [2022-11-25 15:50:13,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:50:13" (3/3) ... [2022-11-25 15:50:13,859 INFO L112 eAbstractionObserver]: Analyzing ICFG simple-recursive.c [2022-11-25 15:50:13,897 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:50:13,898 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 15:50:13,953 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:50:13,961 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=PETRI_NET, 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;@622603f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:50:13,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 15:50:13,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 15:50:13,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 15:50:13,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:50:13,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:50:13,975 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:50:13,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:13,981 INFO L85 PathProgramCache]: Analyzing trace with hash -694887038, now seen corresponding path program 1 times [2022-11-25 15:50:13,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:13,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319992110] [2022-11-25 15:50:13,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:13,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:14,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:50:14,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:50:14,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319992110] [2022-11-25 15:50:14,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319992110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:50:14,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:50:14,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:50:14,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765182927] [2022-11-25 15:50:14,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:50:14,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:50:14,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:50:14,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:50:14,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:50:14,486 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:14,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:50:14,624 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2022-11-25 15:50:14,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:50:14,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-25 15:50:14,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:50:14,634 INFO L225 Difference]: With dead ends: 33 [2022-11-25 15:50:14,634 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 15:50:14,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:50:14,640 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:50:14,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 60 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:50:14,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 15:50:14,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2022-11-25 15:50:14,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:14,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-11-25 15:50:14,672 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2022-11-25 15:50:14,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:50:14,673 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-11-25 15:50:14,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:14,673 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-11-25 15:50:14,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 15:50:14,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:50:14,674 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:50:14,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:50:14,675 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:50:14,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:14,676 INFO L85 PathProgramCache]: Analyzing trace with hash -2070363059, now seen corresponding path program 1 times [2022-11-25 15:50:14,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:14,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761779107] [2022-11-25 15:50:14,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:14,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:15,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:50:15,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:50:15,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761779107] [2022-11-25 15:50:15,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761779107] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:50:15,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731334875] [2022-11-25 15:50:15,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:15,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:15,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:50:15,161 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:50:15,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:50:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:15,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-25 15:50:15,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:50:15,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-25 15:50:15,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-25 15:50:15,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:50:15,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:50:15,659 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:50:15,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731334875] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:50:15,660 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:50:15,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-25 15:50:15,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122282322] [2022-11-25 15:50:15,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:50:15,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-25 15:50:15,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:50:15,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-25 15:50:15,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-11-25 15:50:15,673 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 18 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 13 states have internal predecessors, (20), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:15,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:50:15,953 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-25 15:50:15,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 15:50:15,953 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 13 states have internal predecessors, (20), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-25 15:50:15,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:50:15,954 INFO L225 Difference]: With dead ends: 20 [2022-11-25 15:50:15,954 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 15:50:15,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=537, Unknown=0, NotChecked=0, Total=650 [2022-11-25 15:50:15,956 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:50:15,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:50:15,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 15:50:15,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 15:50:15,958 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) [2022-11-25 15:50:15,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 15:50:15,958 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-11-25 15:50:15,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:50:15,958 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 15:50:15,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 13 states have internal predecessors, (20), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:15,959 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 15:50:15,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 15:50:15,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location fooErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 15:50:15,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 15:50:16,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:16,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 15:50:16,278 INFO L899 garLoopResultBuilder]: For program point fooEXIT(lines 11 20) no Hoare annotation was computed. [2022-11-25 15:50:16,279 INFO L895 garLoopResultBuilder]: At program point fooENTRY(lines 11 20) the Hoare annotation is: (let ((.cse1 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|)) (.cse0 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (or (= .cse0 10) (not (= .cse1 10))) (or (not (<= .cse1 20)) (<= .cse0 20)) (or (not (<= .cse1 11)) (<= .cse0 11)))) [2022-11-25 15:50:16,279 INFO L899 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2022-11-25 15:50:16,279 INFO L899 garLoopResultBuilder]: For program point fooErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2022-11-25 15:50:16,279 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 19) no Hoare annotation was computed. [2022-11-25 15:50:16,280 INFO L895 garLoopResultBuilder]: At program point L13(line 13) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| foo_~p.base) foo_~p.offset)) (.cse0 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|)) (.cse2 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (or (not (<= .cse0 20)) (and (<= .cse1 19) (<= .cse2 20))) (or (and (= .cse2 10) (= .cse1 10)) (not (= .cse0 10))) (or (not (<= .cse0 11)) (<= .cse2 11)))) [2022-11-25 15:50:16,280 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 19) no Hoare annotation was computed. [2022-11-25 15:50:16,280 INFO L899 garLoopResultBuilder]: For program point L12-1(lines 11 20) no Hoare annotation was computed. [2022-11-25 15:50:16,280 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 15:50:16,280 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 15:50:16,281 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 15:50:16,281 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 15:50:16,281 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset|) 10) [2022-11-25 15:50:16,281 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2022-11-25 15:50:16,281 INFO L899 garLoopResultBuilder]: For program point L22(lines 22 28) no Hoare annotation was computed. [2022-11-25 15:50:16,281 INFO L899 garLoopResultBuilder]: For program point plusFINAL(lines 6 9) no Hoare annotation was computed. [2022-11-25 15:50:16,282 INFO L895 garLoopResultBuilder]: At program point plusENTRY(lines 6 9) the Hoare annotation is: (let ((.cse0 (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse1 (select (select |#memory_int| |plus_#in~p.base|) |plus_#in~p.offset|))) (and (or (not (= .cse0 10)) (= .cse1 10)) (or (not (<= .cse0 19)) (<= .cse1 19)))) [2022-11-25 15:50:16,282 INFO L899 garLoopResultBuilder]: For program point plusEXIT(lines 6 9) no Hoare annotation was computed. [2022-11-25 15:50:16,282 INFO L895 garLoopResultBuilder]: At program point L8(line 8) the Hoare annotation is: (let ((.cse1 (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse0 (select (select |#memory_int| plus_~p.base) plus_~p.offset))) (and (or (<= .cse0 20) (not (<= .cse1 19))) (or (not (= .cse1 10)) (and (<= .cse0 11) (<= (select (select |#memory_int| |plus_#in~p.base|) |plus_#in~p.offset|) 19))))) [2022-11-25 15:50:16,285 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 15:50:16,287 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:50:16,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:50:16 BoogieIcfgContainer [2022-11-25 15:50:16,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:50:16,292 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:50:16,292 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:50:16,292 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:50:16,293 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:50:13" (3/4) ... [2022-11-25 15:50:16,295 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 15:50:16,302 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2022-11-25 15:50:16,302 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure plus [2022-11-25 15:50:16,306 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-25 15:50:16,306 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 15:50:16,306 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 15:50:16,307 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 15:50:16,307 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 15:50:16,339 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:50:16,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:50:16,340 INFO L158 Benchmark]: Toolchain (without parser) took 3137.67ms. Allocated memory is still 148.9MB. Free memory was 107.7MB in the beginning and 90.4MB in the end (delta: 17.3MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2022-11-25 15:50:16,340 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 148.9MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:50:16,341 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.52ms. Allocated memory is still 148.9MB. Free memory was 107.7MB in the beginning and 97.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 15:50:16,341 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.69ms. Allocated memory is still 148.9MB. Free memory was 97.7MB in the beginning and 96.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:50:16,341 INFO L158 Benchmark]: Boogie Preprocessor took 21.11ms. Allocated memory is still 148.9MB. Free memory was 96.4MB in the beginning and 95.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:50:16,342 INFO L158 Benchmark]: RCFGBuilder took 358.53ms. Allocated memory is still 148.9MB. Free memory was 95.1MB in the beginning and 84.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 15:50:16,342 INFO L158 Benchmark]: TraceAbstraction took 2438.54ms. Allocated memory is still 148.9MB. Free memory was 84.0MB in the beginning and 93.5MB in the end (delta: -9.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:50:16,342 INFO L158 Benchmark]: Witness Printer took 47.57ms. Allocated memory is still 148.9MB. Free memory was 93.5MB in the beginning and 90.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:50:16,344 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 148.9MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.52ms. Allocated memory is still 148.9MB. Free memory was 107.7MB in the beginning and 97.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.69ms. Allocated memory is still 148.9MB. Free memory was 97.7MB in the beginning and 96.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.11ms. Allocated memory is still 148.9MB. Free memory was 96.4MB in the beginning and 95.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 358.53ms. Allocated memory is still 148.9MB. Free memory was 95.1MB in the beginning and 84.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2438.54ms. Allocated memory is still 148.9MB. Free memory was 84.0MB in the beginning and 93.5MB in the end (delta: -9.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 47.57ms. Allocated memory is still 148.9MB. Free memory was 93.5MB in the beginning and 90.4MB in the end (delta: 3.1MB). 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: 18]: 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 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 67 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 24 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 13 PreInvPairs, 13 NumberOfFragments, 195 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 206 SizeOfPredicates, 10 NumberOfNonLiveVariables, 103 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 15:50:16,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e8dbb0-3f2f-4e31-9d97-f09c4ab1c41b/bin/uautomizer-ZsLfNo2U6R/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