./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrspn.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_461f169a-9b64-4f96-8a3b-69876e6c7e9b/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_461f169a-9b64-4f96-8a3b-69876e6c7e9b/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_461f169a-9b64-4f96-8a3b-69876e6c7e9b/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_461f169a-9b64-4f96-8a3b-69876e6c7e9b/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrspn.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_461f169a-9b64-4f96-8a3b-69876e6c7e9b/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_461f169a-9b64-4f96-8a3b-69876e6c7e9b/bin/ukojak-92XMlrwhuB --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ecf20dd2c3ee96f4ce33fb05fe8b8a847f94671834911abc2dee98681c717cc6 --- 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 17:05:06,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:05:06,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:05:06,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:05:06,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:05:06,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:05:06,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:05:06,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:05:06,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:05:06,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:05:06,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:05:06,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:05:06,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:05:06,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:05:06,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:05:06,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:05:06,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:05:06,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:05:06,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:05:06,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:05:06,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:05:06,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:05:06,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:05:06,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:05:06,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:05:06,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:05:06,540 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:05:06,541 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:05:06,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:05:06,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:05:06,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:05:06,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:05:06,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:05:06,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:05:06,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:05:06,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:05:06,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:05:06,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:05:06,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:05:06,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:05:06,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:05:06,553 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_461f169a-9b64-4f96-8a3b-69876e6c7e9b/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-10-17 17:05:06,583 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:05:06,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:05:06,585 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:05:06,585 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 17:05:06,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:05:06,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:05:06,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:05:06,586 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 17:05:06,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:05:06,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:05:06,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:05:06,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:05:06,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:05:06,595 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 17:05:06,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:05:06,596 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:05:06,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:05:06,596 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 17:05:06,596 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 17:05:06,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:05:06,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:05:06,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:05:06,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:05:06,597 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:05:06,598 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 17:05:06,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:05:06,598 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:05:06,598 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_461f169a-9b64-4f96-8a3b-69876e6c7e9b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_461f169a-9b64-4f96-8a3b-69876e6c7e9b/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecf20dd2c3ee96f4ce33fb05fe8b8a847f94671834911abc2dee98681c717cc6 [2022-10-17 17:05:06,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:05:06,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:05:06,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:05:06,874 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:05:06,875 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:05:06,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_461f169a-9b64-4f96-8a3b-69876e6c7e9b/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/termination-crafted-lit/cstrspn.c [2022-10-17 17:05:06,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_461f169a-9b64-4f96-8a3b-69876e6c7e9b/bin/ukojak-92XMlrwhuB/data/1c70cdff3/8daad7535b8b438ab1a1d2abdb4d8132/FLAG8de6092c3 [2022-10-17 17:05:07,422 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:05:07,423 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_461f169a-9b64-4f96-8a3b-69876e6c7e9b/sv-benchmarks/c/termination-crafted-lit/cstrspn.c [2022-10-17 17:05:07,432 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_461f169a-9b64-4f96-8a3b-69876e6c7e9b/bin/ukojak-92XMlrwhuB/data/1c70cdff3/8daad7535b8b438ab1a1d2abdb4d8132/FLAG8de6092c3 [2022-10-17 17:05:07,789 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_461f169a-9b64-4f96-8a3b-69876e6c7e9b/bin/ukojak-92XMlrwhuB/data/1c70cdff3/8daad7535b8b438ab1a1d2abdb4d8132 [2022-10-17 17:05:07,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:05:07,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:05:07,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:05:07,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:05:07,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:05:07,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:05:07" (1/1) ... [2022-10-17 17:05:07,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46a16526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:07, skipping insertion in model container [2022-10-17 17:05:07,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:05:07" (1/1) ... [2022-10-17 17:05:07,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:05:07,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:05:08,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:05:08,130 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:05:08,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:05:08,174 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:05:08,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:08 WrapperNode [2022-10-17 17:05:08,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:05:08,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:05:08,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:05:08,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:05:08,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:08" (1/1) ... [2022-10-17 17:05:08,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:08" (1/1) ... [2022-10-17 17:05:08,223 INFO L138 Inliner]: procedures = 11, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2022-10-17 17:05:08,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:05:08,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:05:08,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:05:08,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:05:08,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:08" (1/1) ... [2022-10-17 17:05:08,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:08" (1/1) ... [2022-10-17 17:05:08,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:08" (1/1) ... [2022-10-17 17:05:08,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:08" (1/1) ... [2022-10-17 17:05:08,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:08" (1/1) ... [2022-10-17 17:05:08,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:08" (1/1) ... [2022-10-17 17:05:08,274 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:08" (1/1) ... [2022-10-17 17:05:08,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:08" (1/1) ... [2022-10-17 17:05:08,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:05:08,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:05:08,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:05:08,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:05:08,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:08" (1/1) ... [2022-10-17 17:05:08,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:05:08,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_461f169a-9b64-4f96-8a3b-69876e6c7e9b/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 17:05:08,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_461f169a-9b64-4f96-8a3b-69876e6c7e9b/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 17:05:08,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_461f169a-9b64-4f96-8a3b-69876e6c7e9b/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 17:05:08,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:05:08,397 INFO L130 BoogieDeclarations]: Found specification of procedure build_nondet_String [2022-10-17 17:05:08,398 INFO L138 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2022-10-17 17:05:08,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:05:08,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:05:08,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:05:08,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:05:08,495 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:05:08,497 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:05:08,757 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:05:08,806 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:05:08,806 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 17:05:08,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:05:08 BoogieIcfgContainer [2022-10-17 17:05:08,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:05:08,810 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 17:05:08,811 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 17:05:08,822 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 17:05:08,822 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:05:08" (1/1) ... [2022-10-17 17:05:08,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:05:08,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:05:08,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2022-10-17 17:05:08,922 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2022-10-17 17:05:08,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 17:05:08,924 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:05:08,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:05:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:05:09,165 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 17:05:09,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:05:09,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2022-10-17 17:05:09,210 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2022-10-17 17:05:09,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 17:05:09,214 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:05:09,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:05:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:05:09,321 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 17:05:09,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:05:09,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2022-10-17 17:05:09,387 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2022-10-17 17:05:09,388 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 17:05:09,388 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2022-10-17 17:05:09,398 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2022-10-17 17:05:09,426 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 17:05:09,430 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 17:05:09,430 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 17:05:09,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 05:05:09 ImpRootNode [2022-10-17 17:05:09,431 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 17:05:09,431 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 17:05:09,432 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 17:05:09,432 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 17:05:09,432 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:05:08" (3/4) ... [2022-10-17 17:05:09,435 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 17:05:09,441 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure build_nondet_String [2022-10-17 17:05:09,451 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-10-17 17:05:09,452 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-10-17 17:05:09,452 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-10-17 17:05:09,452 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 17:05:09,510 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_461f169a-9b64-4f96-8a3b-69876e6c7e9b/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 17:05:09,511 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 17:05:09,512 INFO L158 Benchmark]: Toolchain (without parser) took 1718.12ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 64.0MB in the beginning and 63.7MB in the end (delta: 287.8kB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2022-10-17 17:05:09,512 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 86.0MB. Free memory was 58.4MB in the beginning and 58.4MB in the end (delta: 44.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:05:09,513 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.43ms. Allocated memory is still 86.0MB. Free memory was 63.6MB in the beginning and 62.5MB in the end (delta: 1.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 17:05:09,513 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.05ms. Allocated memory is still 86.0MB. Free memory was 62.5MB in the beginning and 60.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:05:09,514 INFO L158 Benchmark]: Boogie Preprocessor took 56.93ms. Allocated memory is still 86.0MB. Free memory was 60.7MB in the beginning and 59.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:05:09,515 INFO L158 Benchmark]: RCFGBuilder took 525.10ms. Allocated memory is still 86.0MB. Free memory was 59.2MB in the beginning and 45.5MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 17:05:09,515 INFO L158 Benchmark]: CodeCheck took 620.50ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 45.4MB in the beginning and 66.4MB in the end (delta: -21.0MB). Peak memory consumption was 267.7kB. Max. memory is 16.1GB. [2022-10-17 17:05:09,516 INFO L158 Benchmark]: Witness Printer took 79.28ms. Allocated memory is still 104.9MB. Free memory was 66.4MB in the beginning and 63.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:05:09,519 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 2 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 6 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 86.0MB. Free memory was 58.4MB in the beginning and 58.4MB in the end (delta: 44.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.43ms. Allocated memory is still 86.0MB. Free memory was 63.6MB in the beginning and 62.5MB in the end (delta: 1.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.05ms. Allocated memory is still 86.0MB. Free memory was 62.5MB in the beginning and 60.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.93ms. Allocated memory is still 86.0MB. Free memory was 60.7MB in the beginning and 59.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 525.10ms. Allocated memory is still 86.0MB. Free memory was 59.2MB in the beginning and 45.5MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 620.50ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 45.4MB in the beginning and 66.4MB in the end (delta: -21.0MB). Peak memory consumption was 267.7kB. Max. memory is 16.1GB. * Witness Printer took 79.28ms. Allocated memory is still 104.9MB. Free memory was 66.4MB in the beginning and 63.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 17:05:09,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_461f169a-9b64-4f96-8a3b-69876e6c7e9b/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