./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_o20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_e6822529-37a0-4007-a9c2-338d6ce91818/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6822529-37a0-4007-a9c2-338d6ce91818/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6822529-37a0-4007-a9c2-338d6ce91818/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6822529-37a0-4007-a9c2-338d6ce91818/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_o20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6822529-37a0-4007-a9c2-338d6ce91818/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6822529-37a0-4007-a9c2-338d6ce91818/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 78daae7f2fbb1fbd12685beb952877b8686cc8bc3d2c7fcd55d0c5d2b019aa0d --- 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-e04fb08 [2022-11-16 16:30:36,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:30:36,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:30:36,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:30:36,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:30:36,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:30:36,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:30:36,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:30:36,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:30:36,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:30:36,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:30:36,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:30:36,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:30:36,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:30:36,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:30:36,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:30:36,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:30:36,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:30:36,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:30:36,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:30:36,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:30:36,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:30:36,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:30:36,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:30:36,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:30:36,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:30:36,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:30:36,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:30:36,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:30:36,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:30:36,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:30:36,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:30:36,369 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:30:36,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:30:36,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:30:36,374 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:30:36,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:30:36,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:30:36,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:30:36,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:30:36,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:30:36,378 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6822529-37a0-4007-a9c2-338d6ce91818/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-16 16:30:36,416 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:30:36,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:30:36,417 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:30:36,418 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:30:36,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:30:36,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:30:36,419 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:30:36,419 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:30:36,420 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:30:36,420 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:30:36,421 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:30:36,421 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:30:36,422 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:30:36,422 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:30:36,422 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:30:36,423 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:30:36,423 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:30:36,423 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:30:36,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:30:36,424 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 16:30:36,424 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 16:30:36,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:30:36,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 16:30:36,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:30:36,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:30:36,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:30:36,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:30:36,428 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 16:30:36,428 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 16:30:36,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:30:36,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:30:36,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:30:36,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:30:36,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:30:36,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:30:36,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:30:36,430 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:30:36,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:30:36,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:30:36,431 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:30:36,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:30:36,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:30:36,432 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:30:36,432 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_e6822529-37a0-4007-a9c2-338d6ce91818/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6822529-37a0-4007-a9c2-338d6ce91818/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78daae7f2fbb1fbd12685beb952877b8686cc8bc3d2c7fcd55d0c5d2b019aa0d [2022-11-16 16:30:36,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:30:36,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:30:36,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:30:36,827 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:30:36,828 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:30:36,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6822529-37a0-4007-a9c2-338d6ce91818/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/recursive-simple/id_o20.c [2022-11-16 16:30:36,894 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6822529-37a0-4007-a9c2-338d6ce91818/bin/utaipan-Xvt2sAort0/data/b17d17ef1/b5280da1ac3f4a8e996c3c8849906770/FLAG2d8d2587c [2022-11-16 16:30:37,341 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:30:37,342 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6822529-37a0-4007-a9c2-338d6ce91818/sv-benchmarks/c/recursive-simple/id_o20.c [2022-11-16 16:30:37,348 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6822529-37a0-4007-a9c2-338d6ce91818/bin/utaipan-Xvt2sAort0/data/b17d17ef1/b5280da1ac3f4a8e996c3c8849906770/FLAG2d8d2587c [2022-11-16 16:30:37,740 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6822529-37a0-4007-a9c2-338d6ce91818/bin/utaipan-Xvt2sAort0/data/b17d17ef1/b5280da1ac3f4a8e996c3c8849906770 [2022-11-16 16:30:37,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:30:37,744 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:30:37,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:30:37,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:30:37,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:30:37,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:30:37" (1/1) ... [2022-11-16 16:30:37,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581c1fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:37, skipping insertion in model container [2022-11-16 16:30:37,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:30:37" (1/1) ... [2022-11-16 16:30:37,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:30:37,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:30:37,954 WARN L229 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_e6822529-37a0-4007-a9c2-338d6ce91818/sv-benchmarks/c/recursive-simple/id_o20.c[516,529] [2022-11-16 16:30:37,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:30:37,964 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:30:37,979 WARN L229 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_e6822529-37a0-4007-a9c2-338d6ce91818/sv-benchmarks/c/recursive-simple/id_o20.c[516,529] [2022-11-16 16:30:37,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:30:37,995 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:30:37,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:37 WrapperNode [2022-11-16 16:30:37,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:30:37,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:30:37,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:30:37,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:30:38,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:37" (1/1) ... [2022-11-16 16:30:38,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:37" (1/1) ... [2022-11-16 16:30:38,030 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-11-16 16:30:38,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:30:38,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:30:38,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:30:38,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:30:38,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:37" (1/1) ... [2022-11-16 16:30:38,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:37" (1/1) ... [2022-11-16 16:30:38,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:37" (1/1) ... [2022-11-16 16:30:38,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:37" (1/1) ... [2022-11-16 16:30:38,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:37" (1/1) ... [2022-11-16 16:30:38,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:37" (1/1) ... [2022-11-16 16:30:38,048 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:37" (1/1) ... [2022-11-16 16:30:38,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:37" (1/1) ... [2022-11-16 16:30:38,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:30:38,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:30:38,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:30:38,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:30:38,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:37" (1/1) ... [2022-11-16 16:30:38,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:30:38,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6822529-37a0-4007-a9c2-338d6ce91818/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:30:38,092 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6822529-37a0-4007-a9c2-338d6ce91818/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:30:38,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6822529-37a0-4007-a9c2-338d6ce91818/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:30:38,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:30:38,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:30:38,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:30:38,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:30:38,140 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-11-16 16:30:38,140 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-11-16 16:30:38,213 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:30:38,215 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:30:38,369 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:30:38,399 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:30:38,404 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 16:30:38,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:30:38 BoogieIcfgContainer [2022-11-16 16:30:38,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:30:38,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:30:38,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:30:38,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:30:38,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:30:37" (1/3) ... [2022-11-16 16:30:38,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72191e2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:30:38, skipping insertion in model container [2022-11-16 16:30:38,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:30:37" (2/3) ... [2022-11-16 16:30:38,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72191e2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:30:38, skipping insertion in model container [2022-11-16 16:30:38,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:30:38" (3/3) ... [2022-11-16 16:30:38,418 INFO L112 eAbstractionObserver]: Analyzing ICFG id_o20.c [2022-11-16 16:30:38,437 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:30:38,437 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-16 16:30:38,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72191e2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:30:38, skipping insertion in model container [2022-11-16 16:30:38,440 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 16:30:38,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 16:30:38,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 16:30:38,441 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 16:30:38,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:30:38" (3/3) ... [2022-11-16 16:30:38,445 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 16:30:38,454 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2022-11-16 16:30:38,462 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-16 16:30:38,463 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-16 16:30:38,463 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 16:30:38,463 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 16:30:38,501 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6822529-37a0-4007-a9c2-338d6ce91818/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 16:30:38,501 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 16:30:38,503 INFO L158 Benchmark]: Toolchain (without parser) took 757.83ms. Allocated memory is still 119.5MB. Free memory was 83.7MB in the beginning and 78.6MB in the end (delta: 5.1MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2022-11-16 16:30:38,504 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 119.5MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:30:38,504 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.01ms. Allocated memory is still 119.5MB. Free memory was 83.5MB in the beginning and 95.8MB in the end (delta: -12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 16:30:38,505 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.76ms. Allocated memory is still 119.5MB. Free memory was 95.8MB in the beginning and 94.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:30:38,506 INFO L158 Benchmark]: Boogie Preprocessor took 24.65ms. Allocated memory is still 119.5MB. Free memory was 94.4MB in the beginning and 93.6MB in the end (delta: 782.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:30:38,506 INFO L158 Benchmark]: RCFGBuilder took 349.54ms. Allocated memory is still 119.5MB. Free memory was 93.6MB in the beginning and 83.6MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 16:30:38,507 INFO L158 Benchmark]: TraceAbstraction took 29.72ms. Allocated memory is still 119.5MB. Free memory was 82.8MB in the beginning and 80.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:30:38,508 INFO L158 Benchmark]: Witness Printer took 60.61ms. Allocated memory is still 119.5MB. Free memory was 80.8MB in the beginning and 78.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:30:38,512 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 119.5MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.01ms. Allocated memory is still 119.5MB. Free memory was 83.5MB in the beginning and 95.8MB in the end (delta: -12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.76ms. Allocated memory is still 119.5MB. Free memory was 95.8MB in the beginning and 94.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.65ms. Allocated memory is still 119.5MB. Free memory was 94.4MB in the beginning and 93.6MB in the end (delta: 782.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 349.54ms. Allocated memory is still 119.5MB. Free memory was 93.6MB in the beginning and 83.6MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 29.72ms. Allocated memory is still 119.5MB. Free memory was 82.8MB in the beginning and 80.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 60.61ms. Allocated memory is still 119.5MB. Free memory was 80.8MB in the beginning and 78.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2022-11-16 16:30:38,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6822529-37a0-4007-a9c2-338d6ce91818/bin/utaipan-Xvt2sAort0/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