./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_02_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d07d86-4c13-4ab8-8e1c-8f67c772cbdf/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d07d86-4c13-4ab8-8e1c-8f67c772cbdf/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d07d86-4c13-4ab8-8e1c-8f67c772cbdf/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d07d86-4c13-4ab8-8e1c-8f67c772cbdf/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_02_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d07d86-4c13-4ab8-8e1c-8f67c772cbdf/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d07d86-4c13-4ab8-8e1c-8f67c772cbdf/bin/ukojak-rkRKPMF4O4 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5b2cdb0a3d393975263e2847e46e1970d84afe1f3be1a558d3a52fc861b80ea1 --- 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-2329fc7 [2022-12-15 01:57:43,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 01:57:43,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 01:57:43,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 01:57:43,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 01:57:43,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 01:57:43,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 01:57:43,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 01:57:43,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 01:57:43,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 01:57:43,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 01:57:43,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 01:57:43,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 01:57:43,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 01:57:43,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 01:57:43,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 01:57:43,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 01:57:43,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 01:57:43,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 01:57:43,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 01:57:43,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 01:57:43,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 01:57:43,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 01:57:43,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 01:57:43,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 01:57:43,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 01:57:43,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 01:57:43,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 01:57:43,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 01:57:43,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 01:57:43,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 01:57:43,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 01:57:43,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 01:57:43,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 01:57:43,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 01:57:43,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 01:57:43,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 01:57:43,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 01:57:43,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 01:57:43,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 01:57:43,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 01:57:43,416 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d07d86-4c13-4ab8-8e1c-8f67c772cbdf/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-15 01:57:43,434 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 01:57:43,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 01:57:43,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-15 01:57:43,435 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-15 01:57:43,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 01:57:43,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 01:57:43,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 01:57:43,436 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-15 01:57:43,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 01:57:43,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 01:57:43,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-15 01:57:43,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 01:57:43,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-15 01:57:43,437 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-15 01:57:43,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-15 01:57:43,438 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 01:57:43,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-15 01:57:43,438 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 01:57:43,438 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 01:57:43,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 01:57:43,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 01:57:43,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 01:57:43,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 01:57:43,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-15 01:57:43,439 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 01:57:43,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 01:57:43,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-15 01:57:43,440 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_a6d07d86-4c13-4ab8-8e1c-8f67c772cbdf/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d07d86-4c13-4ab8-8e1c-8f67c772cbdf/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b2cdb0a3d393975263e2847e46e1970d84afe1f3be1a558d3a52fc861b80ea1 [2022-12-15 01:57:43,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 01:57:43,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 01:57:43,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 01:57:43,642 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 01:57:43,642 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 01:57:43,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d07d86-4c13-4ab8-8e1c-8f67c772cbdf/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_02_good.i [2022-12-15 01:57:46,182 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 01:57:46,409 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 01:57:46,409 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d07d86-4c13-4ab8-8e1c-8f67c772cbdf/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_02_good.i [2022-12-15 01:57:46,423 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d07d86-4c13-4ab8-8e1c-8f67c772cbdf/bin/ukojak-rkRKPMF4O4/data/874ca081c/f62ce52826ff4665b124fbd6611667e4/FLAGa891ff888 [2022-12-15 01:57:46,758 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d07d86-4c13-4ab8-8e1c-8f67c772cbdf/bin/ukojak-rkRKPMF4O4/data/874ca081c/f62ce52826ff4665b124fbd6611667e4 [2022-12-15 01:57:46,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 01:57:46,763 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 01:57:46,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 01:57:46,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 01:57:46,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 01:57:46,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:57:46" (1/1) ... [2022-12-15 01:57:46,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b2a3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:57:46, skipping insertion in model container [2022-12-15 01:57:46,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:57:46" (1/1) ... [2022-12-15 01:57:46,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 01:57:46,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 01:57:47,059 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-15 01:57:47,379 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-15 01:57:47,385 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-15 01:57:47,387 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-15 01:57:47,389 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-15 01:57:47,390 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-15 01:57:47,420 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-15 01:57:47,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 01:57:47,428 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 01:57:47,441 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-15 01:57:47,470 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-15 01:57:47,471 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-15 01:57:47,472 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-15 01:57:47,474 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-15 01:57:47,474 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-15 01:57:47,482 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-15 01:57:47,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 01:57:47,586 INFO L208 MainTranslator]: Completed translation [2022-12-15 01:57:47,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:57:47 WrapperNode [2022-12-15 01:57:47,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 01:57:47,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 01:57:47,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 01:57:47,587 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 01:57:47,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:57:47" (1/1) ... [2022-12-15 01:57:47,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:57:47" (1/1) ... [2022-12-15 01:57:47,629 INFO L138 Inliner]: procedures = 503, calls = 69, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 125 [2022-12-15 01:57:47,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 01:57:47,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 01:57:47,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 01:57:47,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 01:57:47,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:57:47" (1/1) ... [2022-12-15 01:57:47,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:57:47" (1/1) ... [2022-12-15 01:57:47,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:57:47" (1/1) ... [2022-12-15 01:57:47,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:57:47" (1/1) ... [2022-12-15 01:57:47,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:57:47" (1/1) ... [2022-12-15 01:57:47,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:57:47" (1/1) ... [2022-12-15 01:57:47,647 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:57:47" (1/1) ... [2022-12-15 01:57:47,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:57:47" (1/1) ... [2022-12-15 01:57:47,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 01:57:47,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 01:57:47,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 01:57:47,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 01:57:47,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:57:47" (1/1) ... [2022-12-15 01:57:47,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 01:57:47,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d07d86-4c13-4ab8-8e1c-8f67c772cbdf/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 01:57:47,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d07d86-4c13-4ab8-8e1c-8f67c772cbdf/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 01:57:47,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d07d86-4c13-4ab8-8e1c-8f67c772cbdf/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 01:57:47,704 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-15 01:57:47,704 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-15 01:57:47,704 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-15 01:57:47,704 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-15 01:57:47,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-15 01:57:47,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 01:57:47,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 01:57:47,704 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-15 01:57:47,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-15 01:57:47,814 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 01:57:47,816 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 01:57:47,986 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 01:57:48,089 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 01:57:48,089 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-15 01:57:48,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:57:48 BoogieIcfgContainer [2022-12-15 01:57:48,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 01:57:48,093 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 01:57:48,093 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 01:57:48,103 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 01:57:48,103 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:57:48" (1/1) ... [2022-12-15 01:57:48,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 01:57:48,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:57:48,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 42 states and 56 transitions. [2022-12-15 01:57:48,148 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2022-12-15 01:57:48,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-15 01:57:48,151 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:57:48,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:57:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:57:48,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 01:57:48,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:57:48,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 40 states and 52 transitions. [2022-12-15 01:57:48,342 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 52 transitions. [2022-12-15 01:57:48,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-15 01:57:48,342 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:57:48,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:57:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:57:48,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 01:57:48,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:57:48,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 39 states and 51 transitions. [2022-12-15 01:57:48,512 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2022-12-15 01:57:48,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-15 01:57:48,512 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:57:48,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:57:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:57:48,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 01:57:48,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:57:48,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 38 states and 49 transitions. [2022-12-15 01:57:48,611 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2022-12-15 01:57:48,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-15 01:57:48,612 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:57:48,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:57:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:57:48,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 01:57:48,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:57:48,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 37 states and 48 transitions. [2022-12-15 01:57:48,755 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2022-12-15 01:57:48,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-15 01:57:48,756 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:57:48,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:57:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:57:48,809 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-15 01:57:48,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:57:48,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 35 states and 43 transitions. [2022-12-15 01:57:48,828 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2022-12-15 01:57:48,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-15 01:57:48,829 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:57:48,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:57:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:57:48,875 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-15 01:57:48,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:57:48,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 34 states and 42 transitions. [2022-12-15 01:57:48,922 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2022-12-15 01:57:48,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-15 01:57:48,923 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:57:48,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:57:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:57:48,976 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-15 01:57:49,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:57:49,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 33 states and 40 transitions. [2022-12-15 01:57:49,002 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2022-12-15 01:57:49,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-15 01:57:49,003 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:57:49,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:57:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:57:49,059 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-15 01:57:49,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:57:49,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 32 states and 39 transitions. [2022-12-15 01:57:49,116 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2022-12-15 01:57:49,116 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-15 01:57:49,116 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2022-12-15 01:57:49,124 INFO L754 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2022-12-15 01:57:49,153 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-15 01:57:49,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 15.12 01:57:49 ImpRootNode [2022-12-15 01:57:49,157 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-15 01:57:49,157 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-15 01:57:49,158 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-15 01:57:49,158 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-15 01:57:49,158 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:57:48" (3/4) ... [2022-12-15 01:57:49,160 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-15 01:57:49,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-12-15 01:57:49,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-12-15 01:57:49,170 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-12-15 01:57:49,170 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-12-15 01:57:49,170 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-15 01:57:49,170 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-15 01:57:49,213 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d07d86-4c13-4ab8-8e1c-8f67c772cbdf/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-15 01:57:49,213 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-15 01:57:49,214 INFO L158 Benchmark]: Toolchain (without parser) took 2450.99ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 99.3MB in the beginning and 54.7MB in the end (delta: 44.6MB). Peak memory consumption was 74.3MB. Max. memory is 16.1GB. [2022-12-15 01:57:49,214 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 138.4MB. Free memory is still 109.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 01:57:49,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 821.93ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 98.9MB in the beginning and 108.3MB in the end (delta: -9.4MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. [2022-12-15 01:57:49,215 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.31ms. Allocated memory is still 167.8MB. Free memory was 108.3MB in the beginning and 104.6MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-15 01:57:49,215 INFO L158 Benchmark]: Boogie Preprocessor took 20.84ms. Allocated memory is still 167.8MB. Free memory was 104.6MB in the beginning and 103.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 01:57:49,215 INFO L158 Benchmark]: RCFGBuilder took 441.43ms. Allocated memory is still 167.8MB. Free memory was 102.5MB in the beginning and 127.2MB in the end (delta: -24.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-15 01:57:49,216 INFO L158 Benchmark]: CodeCheck took 1063.96ms. Allocated memory is still 167.8MB. Free memory was 127.2MB in the beginning and 58.9MB in the end (delta: 68.3MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. [2022-12-15 01:57:49,216 INFO L158 Benchmark]: Witness Printer took 55.81ms. Allocated memory is still 167.8MB. Free memory was 58.9MB in the beginning and 54.7MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 01:57:49,218 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 3 procedures, 42 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 424 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 204 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 176 mSDtfsCounter, 292 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 904 GetRequests, 880 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 28/28 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: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1611]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1611]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1628]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1628]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1646]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 138.4MB. Free memory is still 109.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 821.93ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 98.9MB in the beginning and 108.3MB in the end (delta: -9.4MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.31ms. Allocated memory is still 167.8MB. Free memory was 108.3MB in the beginning and 104.6MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.84ms. Allocated memory is still 167.8MB. Free memory was 104.6MB in the beginning and 103.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 441.43ms. Allocated memory is still 167.8MB. Free memory was 102.5MB in the beginning and 127.2MB in the end (delta: -24.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * CodeCheck took 1063.96ms. Allocated memory is still 167.8MB. Free memory was 127.2MB in the beginning and 58.9MB in the end (delta: 68.3MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. * Witness Printer took 55.81ms. Allocated memory is still 167.8MB. Free memory was 58.9MB in the beginning and 54.7MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-15 01:57:49,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d07d86-4c13-4ab8-8e1c-8f67c772cbdf/bin/ukojak-rkRKPMF4O4/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