./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/n.c11.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052e6819-dd68-4880-8e6f-602c8e104130/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052e6819-dd68-4880-8e6f-602c8e104130/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052e6819-dd68-4880-8e6f-602c8e104130/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052e6819-dd68-4880-8e6f-602c8e104130/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/n.c11.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052e6819-dd68-4880-8e6f-602c8e104130/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052e6819-dd68-4880-8e6f-602c8e104130/bin/ukojak-92XMlrwhuB --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c22d07de108fc4801b9b7475bdc68ff9a5f4a90db882102d1715237a6b65777f --- 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-dbf71c6-m [2022-10-17 16:56:23,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:56:23,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:56:23,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:56:23,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:56:23,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:56:23,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:56:23,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:56:23,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:56:23,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:56:23,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:56:23,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:56:23,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:56:23,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:56:23,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:56:23,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:56:23,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:56:23,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:56:23,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:56:23,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:56:23,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:56:23,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:56:23,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:56:23,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:56:23,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:56:23,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:56:23,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:56:23,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:56:23,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:56:23,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:56:23,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:56:23,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:56:23,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:56:23,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:56:23,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:56:23,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:56:23,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:56:23,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:56:23,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:56:23,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:56:23,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:56:23,524 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052e6819-dd68-4880-8e6f-602c8e104130/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:56:23,580 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:56:23,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:56:23,581 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:56:23,582 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:56:23,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:56:23,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:56:23,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:56:23,583 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:56:23,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:56:23,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:56:23,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:56:23,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:56:23,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:56:23,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:56:23,586 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:56:23,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:56:23,586 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:56:23,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:56:23,586 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:56:23,587 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:56:23,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:56:23,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:56:23,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:56:23,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:56:23,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:56:23,594 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:56:23,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:56:23,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:56:23,597 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_052e6819-dd68-4880-8e6f-602c8e104130/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052e6819-dd68-4880-8e6f-602c8e104130/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c22d07de108fc4801b9b7475bdc68ff9a5f4a90db882102d1715237a6b65777f [2022-10-17 16:56:23,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:56:23,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:56:23,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:56:23,956 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:56:23,957 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:56:23,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052e6819-dd68-4880-8e6f-602c8e104130/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/loops/n.c11.c [2022-10-17 16:56:24,040 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052e6819-dd68-4880-8e6f-602c8e104130/bin/ukojak-92XMlrwhuB/data/7836e6cff/ae9a835e50c949c2b1dcc3de4bb4cdec/FLAG7520967eb [2022-10-17 16:56:24,584 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:56:24,584 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052e6819-dd68-4880-8e6f-602c8e104130/sv-benchmarks/c/loops/n.c11.c [2022-10-17 16:56:24,591 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052e6819-dd68-4880-8e6f-602c8e104130/bin/ukojak-92XMlrwhuB/data/7836e6cff/ae9a835e50c949c2b1dcc3de4bb4cdec/FLAG7520967eb [2022-10-17 16:56:24,964 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052e6819-dd68-4880-8e6f-602c8e104130/bin/ukojak-92XMlrwhuB/data/7836e6cff/ae9a835e50c949c2b1dcc3de4bb4cdec [2022-10-17 16:56:24,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:56:24,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:56:24,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:56:24,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:56:24,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:56:24,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:56:24" (1/1) ... [2022-10-17 16:56:24,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37ee0c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:24, skipping insertion in model container [2022-10-17 16:56:24,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:56:24" (1/1) ... [2022-10-17 16:56:24,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:56:25,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:56:25,212 WARN L230 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_052e6819-dd68-4880-8e6f-602c8e104130/sv-benchmarks/c/loops/n.c11.c[317,330] [2022-10-17 16:56:25,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:56:25,247 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:56:25,262 WARN L230 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_052e6819-dd68-4880-8e6f-602c8e104130/sv-benchmarks/c/loops/n.c11.c[317,330] [2022-10-17 16:56:25,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:56:25,285 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:56:25,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:25 WrapperNode [2022-10-17 16:56:25,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:56:25,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:56:25,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:56:25,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:56:25,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:25" (1/1) ... [2022-10-17 16:56:25,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:25" (1/1) ... [2022-10-17 16:56:25,324 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-10-17 16:56:25,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:56:25,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:56:25,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:56:25,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:56:25,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:25" (1/1) ... [2022-10-17 16:56:25,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:25" (1/1) ... [2022-10-17 16:56:25,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:25" (1/1) ... [2022-10-17 16:56:25,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:25" (1/1) ... [2022-10-17 16:56:25,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:25" (1/1) ... [2022-10-17 16:56:25,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:25" (1/1) ... [2022-10-17 16:56:25,353 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:25" (1/1) ... [2022-10-17 16:56:25,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:25" (1/1) ... [2022-10-17 16:56:25,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:56:25,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:56:25,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:56:25,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:56:25,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:25" (1/1) ... [2022-10-17 16:56:25,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:56:25,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052e6819-dd68-4880-8e6f-602c8e104130/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:56:25,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052e6819-dd68-4880-8e6f-602c8e104130/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:56:25,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052e6819-dd68-4880-8e6f-602c8e104130/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:56:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:56:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:56:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:56:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:56:25,520 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:56:25,523 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:56:25,696 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:56:25,742 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:56:25,742 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:56:25,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:56:25 BoogieIcfgContainer [2022-10-17 16:56:25,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:56:25,746 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:56:25,747 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:56:25,757 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:56:25,757 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:56:25" (1/1) ... [2022-10-17 16:56:25,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:56:25,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:56:25,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2022-10-17 16:56:25,832 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2022-10-17 16:56:25,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:56:25,834 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:56:25,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:56:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:56:26,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:56:26,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:56:26,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2022-10-17 16:56:26,279 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2022-10-17 16:56:26,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:56:26,282 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:56:26,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:56:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:56:26,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:56:26,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:56:26,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 10 states and 14 transitions. [2022-10-17 16:56:26,723 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2022-10-17 16:56:26,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:56:26,723 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:56:26,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:56:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:56:27,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:56:27,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:56:27,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 11 states and 16 transitions. [2022-10-17 16:56:27,184 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 16 transitions. [2022-10-17 16:56:27,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:56:27,185 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:56:27,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:56:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:56:27,597 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:56:27,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:56:27,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 8 states and 12 transitions. [2022-10-17 16:56:27,724 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 12 transitions. [2022-10-17 16:56:27,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:56:27,725 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2022-10-17 16:56:27,737 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:56:27,796 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:56:27,801 INFO L560 CodeCheckObserver]: Invariant with dag size 19 [2022-10-17 16:56:27,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:56:27 ImpRootNode [2022-10-17 16:56:27,810 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:56:27,812 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:56:27,813 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:56:27,813 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:56:27,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:56:25" (3/4) ... [2022-10-17 16:56:27,819 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:56:27,830 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-10-17 16:56:27,831 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-10-17 16:56:27,831 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:56:27,831 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:56:27,864 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052e6819-dd68-4880-8e6f-602c8e104130/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:56:27,865 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:56:27,866 INFO L158 Benchmark]: Toolchain (without parser) took 2897.06ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 54.2MB in the beginning and 71.3MB in the end (delta: -17.1MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2022-10-17 16:56:27,866 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:56:27,867 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.66ms. Allocated memory is still 98.6MB. Free memory was 54.0MB in the beginning and 73.1MB in the end (delta: -19.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 16:56:27,867 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.15ms. Allocated memory is still 98.6MB. Free memory was 73.1MB in the beginning and 71.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:56:27,868 INFO L158 Benchmark]: Boogie Preprocessor took 29.29ms. Allocated memory is still 98.6MB. Free memory was 71.5MB in the beginning and 70.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:56:27,868 INFO L158 Benchmark]: RCFGBuilder took 388.89ms. Allocated memory is still 98.6MB. Free memory was 70.4MB in the beginning and 59.7MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:56:27,869 INFO L158 Benchmark]: CodeCheck took 2063.93ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 59.4MB in the beginning and 73.4MB in the end (delta: -14.0MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2022-10-17 16:56:27,870 INFO L158 Benchmark]: Witness Printer took 52.45ms. Allocated memory is still 119.5MB. Free memory was 73.4MB in the beginning and 71.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:56:27,873 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 4 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 180 GetRequests, 157 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 110 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/10 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((len <= 4 && !(len <= 2)) || (len <= 2 && !(len <= 1))) || (!(len / 4294967296 + 1 <= 0) && len <= 1) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.66ms. Allocated memory is still 98.6MB. Free memory was 54.0MB in the beginning and 73.1MB in the end (delta: -19.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.15ms. Allocated memory is still 98.6MB. Free memory was 73.1MB in the beginning and 71.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.29ms. Allocated memory is still 98.6MB. Free memory was 71.5MB in the beginning and 70.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 388.89ms. Allocated memory is still 98.6MB. Free memory was 70.4MB in the beginning and 59.7MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2063.93ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 59.4MB in the beginning and 73.4MB in the end (delta: -14.0MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Witness Printer took 52.45ms. Allocated memory is still 119.5MB. Free memory was 73.4MB in the beginning and 71.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:56:27,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052e6819-dd68-4880-8e6f-602c8e104130/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE