./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/ps3-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e1269c-ff69-47c1-ba93-d381be18cd38/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e1269c-ff69-47c1-ba93-d381be18cd38/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e1269c-ff69-47c1-ba93-d381be18cd38/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e1269c-ff69-47c1-ba93-d381be18cd38/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/ps3-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e1269c-ff69-47c1-ba93-d381be18cd38/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e1269c-ff69-47c1-ba93-d381be18cd38/bin/ukojak-LBtLqBUTdQ --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 8db0248129cbdf684d5c34c8cefe6849dfc0aface1aea6f02e53557e5a736fa9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:09:38,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:09:38,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:09:38,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:09:38,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:09:38,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:09:38,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:09:38,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:09:38,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:09:38,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:09:38,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:09:38,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:09:38,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:09:38,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:09:38,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:09:38,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:09:38,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:09:38,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:09:38,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:09:38,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:09:38,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:09:38,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:09:38,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:09:38,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:09:38,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:09:38,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:09:38,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:09:38,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:09:38,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:09:38,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:09:38,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:09:38,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:09:38,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:09:38,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:09:38,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:09:38,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:09:38,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:09:38,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:09:38,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:09:38,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:09:38,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:09:38,458 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e1269c-ff69-47c1-ba93-d381be18cd38/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:09:38,502 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:09:38,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:09:38,512 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:09:38,512 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:09:38,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:09:38,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:09:38,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:09:38,514 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:09:38,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:09:38,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:09:38,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:09:38,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:09:38,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:09:38,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:09:38,517 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:09:38,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:09:38,517 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:09:38,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:09:38,517 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:09:38,518 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:09:38,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:09:38,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:09:38,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:09:38,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:09:38,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:09:38,519 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:09:38,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:09:38,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:09:38,520 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_54e1269c-ff69-47c1-ba93-d381be18cd38/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e1269c-ff69-47c1-ba93-d381be18cd38/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8db0248129cbdf684d5c34c8cefe6849dfc0aface1aea6f02e53557e5a736fa9 [2021-11-23 01:09:38,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:09:38,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:09:38,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:09:38,867 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:09:38,869 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:09:38,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e1269c-ff69-47c1-ba93-d381be18cd38/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench/ps3-ll.c [2021-11-23 01:09:38,954 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e1269c-ff69-47c1-ba93-d381be18cd38/bin/ukojak-LBtLqBUTdQ/data/fc03abca7/2138883554a1470487c9f3345d4e6d74/FLAG23df3053d [2021-11-23 01:09:39,400 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:09:39,401 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e1269c-ff69-47c1-ba93-d381be18cd38/sv-benchmarks/c/nla-digbench/ps3-ll.c [2021-11-23 01:09:39,416 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e1269c-ff69-47c1-ba93-d381be18cd38/bin/ukojak-LBtLqBUTdQ/data/fc03abca7/2138883554a1470487c9f3345d4e6d74/FLAG23df3053d [2021-11-23 01:09:39,789 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e1269c-ff69-47c1-ba93-d381be18cd38/bin/ukojak-LBtLqBUTdQ/data/fc03abca7/2138883554a1470487c9f3345d4e6d74 [2021-11-23 01:09:39,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:09:39,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:09:39,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:09:39,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:09:39,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:09:39,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:09:39" (1/1) ... [2021-11-23 01:09:39,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f444341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:39, skipping insertion in model container [2021-11-23 01:09:39,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:09:39" (1/1) ... [2021-11-23 01:09:39,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:09:39,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:09:39,996 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_54e1269c-ff69-47c1-ba93-d381be18cd38/sv-benchmarks/c/nla-digbench/ps3-ll.c[458,471] [2021-11-23 01:09:40,009 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:09:40,018 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:09:40,031 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_54e1269c-ff69-47c1-ba93-d381be18cd38/sv-benchmarks/c/nla-digbench/ps3-ll.c[458,471] [2021-11-23 01:09:40,035 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:09:40,047 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:09:40,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:40 WrapperNode [2021-11-23 01:09:40,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:09:40,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:09:40,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:09:40,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:09:40,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:40" (1/1) ... [2021-11-23 01:09:40,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:40" (1/1) ... [2021-11-23 01:09:40,079 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2021-11-23 01:09:40,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:09:40,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:09:40,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:09:40,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:09:40,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:40" (1/1) ... [2021-11-23 01:09:40,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:40" (1/1) ... [2021-11-23 01:09:40,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:40" (1/1) ... [2021-11-23 01:09:40,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:40" (1/1) ... [2021-11-23 01:09:40,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:40" (1/1) ... [2021-11-23 01:09:40,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:40" (1/1) ... [2021-11-23 01:09:40,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:40" (1/1) ... [2021-11-23 01:09:40,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:09:40,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:09:40,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:09:40,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:09:40,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:40" (1/1) ... [2021-11-23 01:09:40,116 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:09:40,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e1269c-ff69-47c1-ba93-d381be18cd38/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:09:40,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e1269c-ff69-47c1-ba93-d381be18cd38/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:09:40,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e1269c-ff69-47c1-ba93-d381be18cd38/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:09:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:09:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:09:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:09:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:09:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:09:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:09:40,248 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:09:40,249 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:09:40,338 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:09:40,354 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:09:40,354 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:09:40,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:09:40 BoogieIcfgContainer [2021-11-23 01:09:40,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:09:40,358 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:09:40,358 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:09:40,386 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:09:40,387 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:09:40" (1/1) ... [2021-11-23 01:09:40,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:09:40,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:40,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2021-11-23 01:09:40,476 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-11-23 01:09:40,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:09:40,483 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:40,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:40,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:09:40,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:40,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:09:40,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:40,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2021-11-23 01:09:40,804 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2021-11-23 01:09:40,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 01:09:40,806 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:40,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:40,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:09:40,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:41,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:09:41,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:41,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2021-11-23 01:09:41,455 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2021-11-23 01:09:41,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:09:41,456 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:41,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:41,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:09:41,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:41,629 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:09:41,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:41,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2021-11-23 01:09:41,883 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2021-11-23 01:09:41,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:09:41,884 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:41,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:41,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:09:41,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:42,081 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:09:42,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:42,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2021-11-23 01:09:42,426 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2021-11-23 01:09:42,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:09:42,427 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:42,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:42,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 01:09:42,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:42,679 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:09:43,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:43,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2021-11-23 01:09:43,125 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2021-11-23 01:09:43,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 01:09:43,127 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:43,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:43,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 01:09:43,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:43,472 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:09:43,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:43,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2021-11-23 01:09:43,963 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2021-11-23 01:09:43,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 01:09:43,965 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:43,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:44,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:09:44,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:44,279 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 01:09:44,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:44,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2021-11-23 01:09:44,886 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2021-11-23 01:09:44,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 01:09:44,888 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:44,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:44,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:09:44,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:45,291 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 12 proven. 57 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:09:46,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:46,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 39 states and 58 transitions. [2021-11-23 01:09:46,199 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 58 transitions. [2021-11-23 01:09:46,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 01:09:46,201 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:46,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:46,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-23 01:09:46,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:46,761 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 14 proven. 77 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-23 01:09:47,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:47,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 42 states and 63 transitions. [2021-11-23 01:09:47,808 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 63 transitions. [2021-11-23 01:09:47,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 01:09:47,810 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:47,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:49,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 01:09:49,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:50,161 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 20 proven. 132 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-11-23 01:09:51,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:51,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 45 states and 68 transitions. [2021-11-23 01:09:51,266 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 68 transitions. [2021-11-23 01:09:51,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 01:09:51,269 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:51,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:51,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 01:09:51,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:53,199 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 158 proven. 10 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-23 01:09:56,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:56,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 37 states and 55 transitions. [2021-11-23 01:09:56,079 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2021-11-23 01:09:56,080 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:09:56,080 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2021-11-23 01:09:56,089 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 01:09:56,350 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:09:56,353 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:09:56,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:09:56 ImpRootNode [2021-11-23 01:09:56,354 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:09:56,354 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:09:56,354 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:09:56,354 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:09:56,355 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:09:40" (3/4) ... [2021-11-23 01:09:56,357 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:09:56,361 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-23 01:09:56,365 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-23 01:09:56,365 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 01:09:56,366 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 01:09:56,366 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:09:56,410 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e1269c-ff69-47c1-ba93-d381be18cd38/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:09:56,411 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:09:56,412 INFO L158 Benchmark]: Toolchain (without parser) took 16618.70ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 67.1MB in the beginning and 56.7MB in the end (delta: 10.4MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2021-11-23 01:09:56,413 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 100.7MB. Free memory was 54.0MB in the beginning and 54.0MB in the end (delta: 42.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:09:56,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.83ms. Allocated memory is still 100.7MB. Free memory was 67.0MB in the beginning and 75.7MB in the end (delta: -8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:09:56,414 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.40ms. Allocated memory is still 100.7MB. Free memory was 75.7MB in the beginning and 74.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:09:56,415 INFO L158 Benchmark]: Boogie Preprocessor took 20.28ms. Allocated memory is still 100.7MB. Free memory was 74.2MB in the beginning and 73.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:09:56,416 INFO L158 Benchmark]: RCFGBuilder took 252.94ms. Allocated memory is still 100.7MB. Free memory was 73.2MB in the beginning and 64.1MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:09:56,417 INFO L158 Benchmark]: CodeCheck took 15995.40ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 64.1MB in the beginning and 58.8MB in the end (delta: 5.3MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2021-11-23 01:09:56,417 INFO L158 Benchmark]: Witness Printer took 56.96ms. Allocated memory is still 121.6MB. Free memory was 58.8MB in the beginning and 56.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:09:56,422 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, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.7s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 365 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 162 mSDsluCounter, 449 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 332 mSDsCounter, 529 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1026 IncrementalHoareTripleChecker+Invalid, 1555 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 529 mSolverCounterUnsat, 117 mSDtfsCounter, 1026 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2572 GetRequests, 2321 SyntacticMatches, 157 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3671 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 387 NumberOfCodeBlocks, 387 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 376 ConstructedInterpolants, 0 QuantifiedInterpolants, 2210 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1248 ConjunctsInSsa, 260 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 655/1022 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: 12]: 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: 36]: 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 0.39ms. Allocated memory is still 100.7MB. Free memory was 54.0MB in the beginning and 54.0MB in the end (delta: 42.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.83ms. Allocated memory is still 100.7MB. Free memory was 67.0MB in the beginning and 75.7MB in the end (delta: -8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.40ms. Allocated memory is still 100.7MB. Free memory was 75.7MB in the beginning and 74.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.28ms. Allocated memory is still 100.7MB. Free memory was 74.2MB in the beginning and 73.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 252.94ms. Allocated memory is still 100.7MB. Free memory was 73.2MB in the beginning and 64.1MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 15995.40ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 64.1MB in the beginning and 58.8MB in the end (delta: 5.3MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Witness Printer took 56.96ms. Allocated memory is still 121.6MB. Free memory was 58.8MB in the beginning and 56.7MB 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! [2021-11-23 01:09:56,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e1269c-ff69-47c1-ba93-d381be18cd38/bin/ukojak-LBtLqBUTdQ/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