./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_14_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_14_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --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 dec434861d34e957e602dc86c4e4c13d459bb248d7ea1d80d65e0634c3bfb0ed --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:34:24,370 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:34:24,441 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 00:34:24,445 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 00:34:24,446 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 00:34:24,467 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:34:24,467 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:34:24,468 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:34:24,469 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:34:24,469 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:34:24,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:34:24,470 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:34:24,471 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 00:34:24,471 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:34:24,472 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:34:24,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:34:24,473 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:34:24,473 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 00:34:24,474 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 00:34:24,474 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:34:24,475 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:34:24,476 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:34:24,476 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:34:24,476 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:34:24,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:34:24,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:34:24,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:34:24,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:34:24,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:34:24,479 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 00:34:24,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 00:34:24,480 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:34:24,480 INFO L153 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_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dec434861d34e957e602dc86c4e4c13d459bb248d7ea1d80d65e0634c3bfb0ed [2023-12-03 00:34:24,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:34:24,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:34:24,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:34:24,722 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:34:24,723 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:34:24,724 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_14_good.i [2023-12-03 00:34:27,502 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:34:27,800 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:34:27,801 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_14_good.i [2023-12-03 00:34:27,827 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/bin/ukojak-verify-Qdu7aM0XO9/data/800154ca1/9163e95c361e42faa2a7b901b7a126e8/FLAG36a625610 [2023-12-03 00:34:27,841 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/bin/ukojak-verify-Qdu7aM0XO9/data/800154ca1/9163e95c361e42faa2a7b901b7a126e8 [2023-12-03 00:34:27,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:34:27,845 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:34:27,847 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:34:27,847 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:34:27,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:34:27,852 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:34:27" (1/1) ... [2023-12-03 00:34:27,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@101fa97c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:27, skipping insertion in model container [2023-12-03 00:34:27,854 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:34:27" (1/1) ... [2023-12-03 00:34:27,913 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:34:28,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:34:28,687 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:34:28,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:34:28,903 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:34:28,903 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:34:28,904 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:34:28,904 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:34:28,912 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:34:28,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:28 WrapperNode [2023-12-03 00:34:28,912 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:34:28,913 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:34:28,914 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:34:28,914 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:34:28,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:28" (1/1) ... [2023-12-03 00:34:28,944 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:28" (1/1) ... [2023-12-03 00:34:28,968 INFO L138 Inliner]: procedures = 502, calls = 70, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 103 [2023-12-03 00:34:28,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:34:28,970 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:34:28,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:34:28,970 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:34:28,979 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:28" (1/1) ... [2023-12-03 00:34:28,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:28" (1/1) ... [2023-12-03 00:34:28,983 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:28" (1/1) ... [2023-12-03 00:34:28,983 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:28" (1/1) ... [2023-12-03 00:34:28,989 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:28" (1/1) ... [2023-12-03 00:34:28,992 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:28" (1/1) ... [2023-12-03 00:34:28,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:28" (1/1) ... [2023-12-03 00:34:28,994 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:28" (1/1) ... [2023-12-03 00:34:28,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:34:28,997 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:34:28,998 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:34:28,998 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:34:28,998 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:28" (1/1) ... [2023-12-03 00:34:29,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:34:29,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:34:29,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:34:29,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:34:29,060 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-12-03 00:34:29,060 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-12-03 00:34:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 00:34:29,061 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 00:34:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:34:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:34:29,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:34:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 00:34:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 00:34:29,200 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:34:29,202 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:34:29,367 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:34:29,414 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:34:29,414 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 00:34:29,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:34:29 BoogieIcfgContainer [2023-12-03 00:34:29,416 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:34:29,416 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:34:29,417 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:34:29,425 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:34:29,425 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:34:29" (1/1) ... [2023-12-03 00:34:29,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:34:29,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:34:29,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 53 states and 67 transitions. [2023-12-03 00:34:29,479 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2023-12-03 00:34:29,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 00:34:29,483 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:34:29,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:34:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:34:29,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:34:29,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:34:29,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 52 states and 66 transitions. [2023-12-03 00:34:29,737 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2023-12-03 00:34:29,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 00:34:29,737 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:34:29,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:34:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:34:29,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:34:29,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:34:29,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 47 states and 59 transitions. [2023-12-03 00:34:29,873 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 59 transitions. [2023-12-03 00:34:29,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 00:34:29,874 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:34:29,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:34:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:34:29,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 00:34:29,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:34:29,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 45 states and 55 transitions. [2023-12-03 00:34:29,984 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2023-12-03 00:34:29,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 00:34:29,985 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:34:29,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:34:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:34:30,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 00:34:30,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:34:30,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 44 states and 54 transitions. [2023-12-03 00:34:30,064 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2023-12-03 00:34:30,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 00:34:30,064 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:34:30,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:34:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:34:30,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 00:34:30,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:34:30,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 39 states and 47 transitions. [2023-12-03 00:34:30,159 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2023-12-03 00:34:30,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 00:34:30,160 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:34:30,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:34:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:34:30,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 00:34:30,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:34:30,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 39 states and 46 transitions. [2023-12-03 00:34:30,270 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2023-12-03 00:34:30,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 00:34:30,271 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:34:30,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:34:30,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:34:30,326 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 00:34:30,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:34:30,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 41 states and 50 transitions. [2023-12-03 00:34:30,355 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2023-12-03 00:34:30,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 00:34:30,356 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:34:30,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:34:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:34:30,412 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 00:34:30,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:34:30,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 44 states and 55 transitions. [2023-12-03 00:34:30,487 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2023-12-03 00:34:30,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 00:34:30,488 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:34:30,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:34:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:34:30,525 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 00:34:30,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:34:30,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 35 states and 39 transitions. [2023-12-03 00:34:30,653 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2023-12-03 00:34:30,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-03 00:34:30,654 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:34:30,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:34:30,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:34:30,751 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 00:34:30,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:34:30,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 34 states and 38 transitions. [2023-12-03 00:34:30,911 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2023-12-03 00:34:30,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-03 00:34:30,912 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:34:30,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:34:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:34:31,003 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 00:34:31,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:34:31,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 33 states and 37 transitions. [2023-12-03 00:34:31,098 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2023-12-03 00:34:31,099 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 00:34:31,099 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2023-12-03 00:34:31,107 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-12-03 00:34:31,209 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 00:34:31,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:34:31 ImpRootNode [2023-12-03 00:34:31,214 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 00:34:31,215 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 00:34:31,215 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 00:34:31,215 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 00:34:31,215 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:34:29" (3/4) ... [2023-12-03 00:34:31,217 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 00:34:31,220 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-12-03 00:34:31,220 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-12-03 00:34:31,225 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2023-12-03 00:34:31,226 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-12-03 00:34:31,226 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-03 00:34:31,227 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 00:34:31,324 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 00:34:31,324 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 00:34:31,324 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 00:34:31,325 INFO L158 Benchmark]: Toolchain (without parser) took 3479.96ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 116.8MB in the beginning and 98.9MB in the end (delta: 17.8MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2023-12-03 00:34:31,325 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 111.1MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:34:31,326 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1066.06ms. Allocated memory is still 157.3MB. Free memory was 116.1MB in the beginning and 75.7MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-12-03 00:34:31,326 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.77ms. Allocated memory is still 157.3MB. Free memory was 75.7MB in the beginning and 72.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:34:31,327 INFO L158 Benchmark]: Boogie Preprocessor took 27.22ms. Allocated memory is still 157.3MB. Free memory was 72.7MB in the beginning and 70.7MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 00:34:31,327 INFO L158 Benchmark]: RCFGBuilder took 418.30ms. Allocated memory is still 157.3MB. Free memory was 70.7MB in the beginning and 52.6MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 00:34:31,327 INFO L158 Benchmark]: CodeCheck took 1797.56ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 52.6MB in the beginning and 104.1MB in the end (delta: -51.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:34:31,328 INFO L158 Benchmark]: Witness Printer took 109.93ms. Allocated memory is still 188.7MB. Free memory was 104.1MB in the beginning and 98.9MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 00:34:31,330 INFO L338 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, 53 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 938 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 183 mSDsluCounter, 758 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 156 mSDsCounter, 194 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 488 IncrementalHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 194 mSolverCounterUnsat, 602 mSDtfsCounter, 488 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1576 GetRequests, 1542 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 209 NumberOfCodeBlocks, 209 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 406 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 38/38 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 0.21ms. Allocated memory is still 111.1MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1066.06ms. Allocated memory is still 157.3MB. Free memory was 116.1MB in the beginning and 75.7MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.77ms. Allocated memory is still 157.3MB. Free memory was 75.7MB in the beginning and 72.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.22ms. Allocated memory is still 157.3MB. Free memory was 72.7MB in the beginning and 70.7MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 418.30ms. Allocated memory is still 157.3MB. Free memory was 70.7MB in the beginning and 52.6MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1797.56ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 52.6MB in the beginning and 104.1MB in the end (delta: -51.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 109.93ms. Allocated memory is still 188.7MB. Free memory was 104.1MB in the beginning and 98.9MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 00:34:31,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c3d7b9-48ec-4ef4-a44b-364e3443d349/bin/ukojak-verify-Qdu7aM0XO9/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