./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark07_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de833cb7-44ca-436a-955a-c6d2a00db1d7/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de833cb7-44ca-436a-955a-c6d2a00db1d7/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de833cb7-44ca-436a-955a-c6d2a00db1d7/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de833cb7-44ca-436a-955a-c6d2a00db1d7/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark07_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de833cb7-44ca-436a-955a-c6d2a00db1d7/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de833cb7-44ca-436a-955a-c6d2a00db1d7/bin/ukojak-jW3SillKbg --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 2a73419fb64daa6d7ad78ec2e7248d3c39562a5784dfcea53eb2425fcf193a59 --- 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-b5237d8 [2022-11-21 23:19:26,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 23:19:26,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 23:19:26,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 23:19:26,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 23:19:26,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 23:19:26,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 23:19:26,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 23:19:26,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 23:19:26,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 23:19:26,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 23:19:26,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 23:19:26,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 23:19:26,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 23:19:26,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 23:19:26,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 23:19:26,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 23:19:26,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 23:19:26,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 23:19:26,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 23:19:26,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 23:19:26,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 23:19:26,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 23:19:26,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 23:19:26,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 23:19:26,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 23:19:26,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 23:19:26,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 23:19:26,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 23:19:26,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 23:19:26,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 23:19:26,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 23:19:26,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 23:19:26,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 23:19:26,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 23:19:26,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 23:19:26,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 23:19:26,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 23:19:26,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 23:19:26,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 23:19:26,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 23:19:26,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de833cb7-44ca-436a-955a-c6d2a00db1d7/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-11-21 23:19:26,499 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 23:19:26,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 23:19:26,505 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 23:19:26,505 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 23:19:26,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 23:19:26,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 23:19:26,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 23:19:26,507 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 23:19:26,507 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 23:19:26,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 23:19:26,508 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 23:19:26,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 23:19:26,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 23:19:26,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 23:19:26,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 23:19:26,510 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 23:19:26,510 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 23:19:26,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 23:19:26,510 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 23:19:26,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 23:19:26,511 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 23:19:26,511 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 23:19:26,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 23:19:26,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:19:26,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 23:19:26,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 23:19:26,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 23:19:26,513 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 23:19:26,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 23:19:26,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 23:19:26,514 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_de833cb7-44ca-436a-955a-c6d2a00db1d7/bin/ukojak-jW3SillKbg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de833cb7-44ca-436a-955a-c6d2a00db1d7/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a73419fb64daa6d7ad78ec2e7248d3c39562a5784dfcea53eb2425fcf193a59 [2022-11-21 23:19:26,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 23:19:26,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 23:19:26,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 23:19:26,799 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 23:19:26,799 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 23:19:26,800 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de833cb7-44ca-436a-955a-c6d2a00db1d7/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/loop-zilu/benchmark07_linear.i [2022-11-21 23:19:29,964 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 23:19:30,255 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 23:19:30,256 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de833cb7-44ca-436a-955a-c6d2a00db1d7/sv-benchmarks/c/loop-zilu/benchmark07_linear.i [2022-11-21 23:19:30,263 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de833cb7-44ca-436a-955a-c6d2a00db1d7/bin/ukojak-jW3SillKbg/data/2e8fb0051/a709a8ba3c38453bbdeeb679185ef217/FLAGeea7d4fe1 [2022-11-21 23:19:30,282 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de833cb7-44ca-436a-955a-c6d2a00db1d7/bin/ukojak-jW3SillKbg/data/2e8fb0051/a709a8ba3c38453bbdeeb679185ef217 [2022-11-21 23:19:30,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 23:19:30,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 23:19:30,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 23:19:30,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 23:19:30,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 23:19:30,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:19:30" (1/1) ... [2022-11-21 23:19:30,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8877d1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:19:30, skipping insertion in model container [2022-11-21 23:19:30,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:19:30" (1/1) ... [2022-11-21 23:19:30,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 23:19:30,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 23:19:30,480 WARN L237 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_de833cb7-44ca-436a-955a-c6d2a00db1d7/sv-benchmarks/c/loop-zilu/benchmark07_linear.i[868,881] [2022-11-21 23:19:30,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:19:30,503 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 23:19:30,517 WARN L237 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_de833cb7-44ca-436a-955a-c6d2a00db1d7/sv-benchmarks/c/loop-zilu/benchmark07_linear.i[868,881] [2022-11-21 23:19:30,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:19:30,538 INFO L208 MainTranslator]: Completed translation [2022-11-21 23:19:30,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:19:30 WrapperNode [2022-11-21 23:19:30,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 23:19:30,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 23:19:30,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 23:19:30,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 23:19:30,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:19:30" (1/1) ... [2022-11-21 23:19:30,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:19:30" (1/1) ... [2022-11-21 23:19:30,579 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 46 [2022-11-21 23:19:30,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 23:19:30,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 23:19:30,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 23:19:30,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 23:19:30,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:19:30" (1/1) ... [2022-11-21 23:19:30,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:19:30" (1/1) ... [2022-11-21 23:19:30,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:19:30" (1/1) ... [2022-11-21 23:19:30,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:19:30" (1/1) ... [2022-11-21 23:19:30,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:19:30" (1/1) ... [2022-11-21 23:19:30,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:19:30" (1/1) ... [2022-11-21 23:19:30,602 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:19:30" (1/1) ... [2022-11-21 23:19:30,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:19:30" (1/1) ... [2022-11-21 23:19:30,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 23:19:30,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 23:19:30,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 23:19:30,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 23:19:30,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:19:30" (1/1) ... [2022-11-21 23:19:30,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:19:30,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de833cb7-44ca-436a-955a-c6d2a00db1d7/bin/ukojak-jW3SillKbg/z3 [2022-11-21 23:19:30,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de833cb7-44ca-436a-955a-c6d2a00db1d7/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 23:19:30,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de833cb7-44ca-436a-955a-c6d2a00db1d7/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 23:19:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 23:19:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 23:19:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 23:19:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 23:19:30,769 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 23:19:30,771 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 23:19:30,908 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 23:19:30,939 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 23:19:30,939 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 23:19:30,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:19:30 BoogieIcfgContainer [2022-11-21 23:19:30,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 23:19:30,944 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 23:19:30,944 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 23:19:30,954 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 23:19:30,954 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:19:30" (1/1) ... [2022-11-21 23:19:30,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 23:19:31,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:19:31,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2022-11-21 23:19:31,024 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-21 23:19:31,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 23:19:31,026 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:19:31,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:19:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:19:31,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:19:31,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:19:31,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2022-11-21 23:19:31,304 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2022-11-21 23:19:31,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 23:19:31,305 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:19:31,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:19:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:19:31,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:19:31,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:19:31,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2022-11-21 23:19:31,404 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2022-11-21 23:19:31,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 23:19:31,405 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:19:31,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:19:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 23:19:31,422 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 23:19:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 23:19:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 23:19:31,473 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 23:19:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 23:19:31,489 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2022-11-21 23:19:31,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 11:19:31 ImpRootNode [2022-11-21 23:19:31,530 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 23:19:31,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 23:19:31,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 23:19:31,531 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 23:19:31,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:19:30" (3/4) ... [2022-11-21 23:19:31,536 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-21 23:19:31,614 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de833cb7-44ca-436a-955a-c6d2a00db1d7/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 23:19:31,616 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 23:19:31,619 INFO L158 Benchmark]: Toolchain (without parser) took 1329.48ms. Allocated memory is still 178.3MB. Free memory was 146.3MB in the beginning and 98.2MB in the end (delta: 48.1MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-11-21 23:19:31,622 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:19:31,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.57ms. Allocated memory is still 178.3MB. Free memory was 146.3MB in the beginning and 135.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 23:19:31,625 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.17ms. Allocated memory is still 178.3MB. Free memory was 135.9MB in the beginning and 134.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:19:31,625 INFO L158 Benchmark]: Boogie Preprocessor took 25.21ms. Allocated memory is still 178.3MB. Free memory was 134.4MB in the beginning and 133.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:19:31,626 INFO L158 Benchmark]: RCFGBuilder took 336.31ms. Allocated memory is still 178.3MB. Free memory was 133.4MB in the beginning and 121.8MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 23:19:31,628 INFO L158 Benchmark]: CodeCheck took 586.20ms. Allocated memory is still 178.3MB. Free memory was 121.8MB in the beginning and 99.8MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-21 23:19:31,630 INFO L158 Benchmark]: Witness Printer took 85.31ms. Allocated memory is still 178.3MB. Free memory was 99.8MB in the beginning and 98.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:19:31,636 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, 18 locations, 6 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, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 8 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 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 - CounterExampleResult [Line: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int i = __VERIFIER_nondet_int(); [L21] int n = __VERIFIER_nondet_int(); [L22] int k = __VERIFIER_nondet_int(); [L23] _Bool flag = __VERIFIER_nondet_bool(); [L24] i=0 VAL [i=0, k=2147483647, n=9] [L25] COND FALSE !(!(n>0 && n<10)) VAL [i=0, k=2147483647, n=9] [L26] COND TRUE i