./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark25_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1014aaf0-2658-4560-9f95-7192c589c916/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1014aaf0-2658-4560-9f95-7192c589c916/bin/ukojak-2xVlg8857e/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1014aaf0-2658-4560-9f95-7192c589c916/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1014aaf0-2658-4560-9f95-7192c589c916/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark25_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1014aaf0-2658-4560-9f95-7192c589c916/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1014aaf0-2658-4560-9f95-7192c589c916/bin/ukojak-2xVlg8857e --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 32bit --witnessprinter.graph.data.programhash 1130d3df8d11f3be805af96558350a1bd8faf89323cc035b32267e4a54793a8c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 23:00:55,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 23:00:55,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 23:00:55,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 23:00:55,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 23:00:55,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 23:00:55,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 23:00:55,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 23:00:55,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 23:00:55,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 23:00:55,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 23:00:55,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 23:00:55,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 23:00:55,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 23:00:55,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 23:00:55,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 23:00:55,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 23:00:55,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 23:00:55,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 23:00:55,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 23:00:55,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 23:00:55,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 23:00:55,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 23:00:55,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 23:00:55,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 23:00:55,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 23:00:55,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 23:00:55,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 23:00:55,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 23:00:55,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 23:00:55,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 23:00:55,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 23:00:55,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 23:00:55,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 23:00:55,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 23:00:55,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 23:00:55,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 23:00:55,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 23:00:55,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 23:00:55,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 23:00:55,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 23:00:55,352 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1014aaf0-2658-4560-9f95-7192c589c916/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-32bit-Kojak_Default.epf [2021-11-13 23:00:55,393 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 23:00:55,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 23:00:55,395 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 23:00:55,395 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 23:00:55,396 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 23:00:55,396 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 23:00:55,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 23:00:55,397 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 23:00:55,397 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 23:00:55,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 23:00:55,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 23:00:55,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 23:00:55,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 23:00:55,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 23:00:55,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 23:00:55,403 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 23:00:55,404 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 23:00:55,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 23:00:55,404 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 23:00:55,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 23:00:55,405 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 23:00:55,405 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 23:00:55,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 23:00:55,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:00:55,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 23:00:55,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 23:00:55,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 23:00:55,407 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 23:00:55,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 23:00:55,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 23:00:55,410 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_1014aaf0-2658-4560-9f95-7192c589c916/bin/ukojak-2xVlg8857e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1014aaf0-2658-4560-9f95-7192c589c916/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1130d3df8d11f3be805af96558350a1bd8faf89323cc035b32267e4a54793a8c [2021-11-13 23:00:55,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 23:00:55,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 23:00:55,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 23:00:55,814 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 23:00:55,815 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 23:00:55,816 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1014aaf0-2658-4560-9f95-7192c589c916/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/loop-zilu/benchmark25_linear.i [2021-11-13 23:00:55,918 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1014aaf0-2658-4560-9f95-7192c589c916/bin/ukojak-2xVlg8857e/data/b11e9ec5f/ed8d3439d8694325b6eb6ea36e392c7a/FLAGf4e66b3ee [2021-11-13 23:00:56,578 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 23:00:56,579 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1014aaf0-2658-4560-9f95-7192c589c916/sv-benchmarks/c/loop-zilu/benchmark25_linear.i [2021-11-13 23:00:56,590 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1014aaf0-2658-4560-9f95-7192c589c916/bin/ukojak-2xVlg8857e/data/b11e9ec5f/ed8d3439d8694325b6eb6ea36e392c7a/FLAGf4e66b3ee [2021-11-13 23:00:56,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1014aaf0-2658-4560-9f95-7192c589c916/bin/ukojak-2xVlg8857e/data/b11e9ec5f/ed8d3439d8694325b6eb6ea36e392c7a [2021-11-13 23:00:56,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 23:00:56,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 23:00:56,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 23:00:56,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 23:00:56,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 23:00:56,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:00:56" (1/1) ... [2021-11-13 23:00:56,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61eb2648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:00:56, skipping insertion in model container [2021-11-13 23:00:56,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:00:56" (1/1) ... [2021-11-13 23:00:56,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 23:00:56,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 23:00:57,137 WARN L228 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_1014aaf0-2658-4560-9f95-7192c589c916/sv-benchmarks/c/loop-zilu/benchmark25_linear.i[868,881] [2021-11-13 23:00:57,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:00:57,154 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 23:00:57,174 WARN L228 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_1014aaf0-2658-4560-9f95-7192c589c916/sv-benchmarks/c/loop-zilu/benchmark25_linear.i[868,881] [2021-11-13 23:00:57,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:00:57,194 INFO L208 MainTranslator]: Completed translation [2021-11-13 23:00:57,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:00:57 WrapperNode [2021-11-13 23:00:57,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 23:00:57,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 23:00:57,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 23:00:57,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 23:00:57,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:00:57" (1/1) ... [2021-11-13 23:00:57,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:00:57" (1/1) ... [2021-11-13 23:00:57,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 23:00:57,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 23:00:57,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 23:00:57,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 23:00:57,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:00:57" (1/1) ... [2021-11-13 23:00:57,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:00:57" (1/1) ... [2021-11-13 23:00:57,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:00:57" (1/1) ... [2021-11-13 23:00:57,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:00:57" (1/1) ... [2021-11-13 23:00:57,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:00:57" (1/1) ... [2021-11-13 23:00:57,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:00:57" (1/1) ... [2021-11-13 23:00:57,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:00:57" (1/1) ... [2021-11-13 23:00:57,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 23:00:57,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 23:00:57,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 23:00:57,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 23:00:57,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:00:57" (1/1) ... [2021-11-13 23:00:57,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:00:57,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1014aaf0-2658-4560-9f95-7192c589c916/bin/ukojak-2xVlg8857e/z3 [2021-11-13 23:00:57,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1014aaf0-2658-4560-9f95-7192c589c916/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 23:00:57,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1014aaf0-2658-4560-9f95-7192c589c916/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 23:00:57,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 23:00:57,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 23:00:57,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 23:00:57,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 23:00:57,617 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 23:00:57,617 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 23:00:57,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:00:57 BoogieIcfgContainer [2021-11-13 23:00:57,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 23:00:57,622 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 23:00:57,623 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 23:00:57,639 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 23:00:57,639 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:00:57" (1/1) ... [2021-11-13 23:00:57,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:00:57,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:00:57,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2021-11-13 23:00:57,728 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-11-13 23:00:57,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 23:00:57,732 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:00:57,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:00:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:00:57,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:00:57,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:00:57,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2021-11-13 23:00:57,993 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-11-13 23:00:57,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 23:00:57,994 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:00:57,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:00:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:00:58,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:00:58,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:00:58,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2021-11-13 23:00:58,154 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-11-13 23:00:58,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 23:00:58,155 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:00:58,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:00:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:00:58,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 23:00:58,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:00:58,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-13 23:00:58,318 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-13 23:00:58,318 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 23:00:58,319 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2021-11-13 23:00:58,332 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2021-11-13 23:00:58,378 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-13 23:00:58,382 INFO L560 CodeCheckObserver]: Invariant with dag size 5 [2021-11-13 23:00:58,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:00:58 ImpRootNode [2021-11-13 23:00:58,391 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-13 23:00:58,394 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 23:00:58,394 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 23:00:58,395 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 23:00:58,395 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:00:57" (3/4) ... [2021-11-13 23:00:58,400 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 23:00:58,416 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-13 23:00:58,416 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 23:00:58,417 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-13 23:00:58,417 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 23:00:58,481 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1014aaf0-2658-4560-9f95-7192c589c916/bin/ukojak-2xVlg8857e/witness.graphml [2021-11-13 23:00:58,481 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 23:00:58,482 INFO L158 Benchmark]: Toolchain (without parser) took 1530.00ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 62.4MB in the beginning and 79.0MB in the end (delta: -16.6MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2021-11-13 23:00:58,483 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 92.3MB. Free memory is still 60.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:00:58,484 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.11ms. Allocated memory is still 92.3MB. Free memory was 62.2MB in the beginning and 52.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 23:00:58,485 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.50ms. Allocated memory is still 92.3MB. Free memory was 52.7MB in the beginning and 51.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 23:00:58,485 INFO L158 Benchmark]: Boogie Preprocessor took 35.57ms. Allocated memory is still 92.3MB. Free memory was 51.4MB in the beginning and 50.4MB in the end (delta: 989.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:00:58,486 INFO L158 Benchmark]: RCFGBuilder took 337.24ms. Allocated memory is still 92.3MB. Free memory was 50.4MB in the beginning and 40.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 23:00:58,487 INFO L158 Benchmark]: CodeCheck took 769.30ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 40.6MB in the beginning and 81.8MB in the end (delta: -41.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:00:58,488 INFO L158 Benchmark]: Witness Printer took 87.73ms. Allocated memory is still 115.3MB. Free memory was 81.8MB in the beginning and 79.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 23:00:58,491 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, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 4, 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, 30 SdHoareTripleChecker+Valid, 204.24ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 165.72ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 80 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 6 mSDtfsCounter, 80 mSolverCounterSat, 4.95ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 <= x + 2147483648 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 92.3MB. Free memory is still 60.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.11ms. Allocated memory is still 92.3MB. Free memory was 62.2MB in the beginning and 52.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.50ms. Allocated memory is still 92.3MB. Free memory was 52.7MB in the beginning and 51.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.57ms. Allocated memory is still 92.3MB. Free memory was 51.4MB in the beginning and 50.4MB in the end (delta: 989.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 337.24ms. Allocated memory is still 92.3MB. Free memory was 50.4MB in the beginning and 40.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 769.30ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 40.6MB in the beginning and 81.8MB in the end (delta: -41.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 87.73ms. Allocated memory is still 115.3MB. Free memory was 81.8MB in the beginning and 79.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-13 23:00:58,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1014aaf0-2658-4560-9f95-7192c589c916/bin/ukojak-2xVlg8857e/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