./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_65_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_8dbd67da-37da-43dc-a17c-e89bc19c1007/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dbd67da-37da-43dc-a17c-e89bc19c1007/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_8dbd67da-37da-43dc-a17c-e89bc19c1007/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dbd67da-37da-43dc-a17c-e89bc19c1007/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_65_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dbd67da-37da-43dc-a17c-e89bc19c1007/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_8dbd67da-37da-43dc-a17c-e89bc19c1007/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 ac0a1a6e382dc67c16c6b72d2239e81c389e4f53fb61fde23070e142dd3fc6a0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:03:25,444 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:03:25,509 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dbd67da-37da-43dc-a17c-e89bc19c1007/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-02 21:03:25,514 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:03:25,515 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:03:25,537 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:03:25,538 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:03:25,539 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:03:25,540 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:03:25,540 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:03:25,541 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:03:25,541 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:03:25,542 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:03:25,542 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:03:25,543 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:03:25,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:03:25,544 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:03:25,544 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 21:03:25,545 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 21:03:25,545 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:03:25,546 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:03:25,547 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:03:25,547 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:03:25,548 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:03:25,548 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:03:25,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:03:25,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:03:25,549 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:03:25,550 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:03:25,550 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:03:25,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:03:25,551 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:03:25,551 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_8dbd67da-37da-43dc-a17c-e89bc19c1007/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dbd67da-37da-43dc-a17c-e89bc19c1007/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac0a1a6e382dc67c16c6b72d2239e81c389e4f53fb61fde23070e142dd3fc6a0 [2023-12-02 21:03:25,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:03:25,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:03:25,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:03:25,786 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:03:25,786 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:03:25,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dbd67da-37da-43dc-a17c-e89bc19c1007/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_65_good.i [2023-12-02 21:03:28,557 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:03:28,863 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:03:28,863 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dbd67da-37da-43dc-a17c-e89bc19c1007/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_65_good.i [2023-12-02 21:03:28,885 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dbd67da-37da-43dc-a17c-e89bc19c1007/bin/ukojak-verify-Qdu7aM0XO9/data/a977c1b94/b923c2a0d4c54eaa87d2e88836d040db/FLAG9fc4fe33f [2023-12-02 21:03:28,898 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dbd67da-37da-43dc-a17c-e89bc19c1007/bin/ukojak-verify-Qdu7aM0XO9/data/a977c1b94/b923c2a0d4c54eaa87d2e88836d040db [2023-12-02 21:03:28,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:03:28,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:03:28,903 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:03:28,903 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:03:28,907 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:03:28,908 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:03:28" (1/1) ... [2023-12-02 21:03:28,909 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc40b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:28, skipping insertion in model container [2023-12-02 21:03:28,909 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:03:28" (1/1) ... [2023-12-02 21:03:28,969 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:03:29,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:03:29,712 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:03:29,786 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:03:29,942 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:03:29,942 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:03:29,942 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:03:29,943 WARN L675 CHandler]: The function funcPtr is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:03:29,943 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:03:29,949 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:03:29,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29 WrapperNode [2023-12-02 21:03:29,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:03:29,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:03:29,951 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:03:29,951 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:03:29,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:29,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:30,008 INFO L138 Inliner]: procedures = 503, calls = 69, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 73 [2023-12-02 21:03:30,009 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:03:30,009 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:03:30,010 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:03:30,010 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:03:30,017 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:30,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:30,021 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:30,021 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:30,028 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:30,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:30,033 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:30,035 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:30,038 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:03:30,039 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:03:30,039 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:03:30,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:03:30,040 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:30,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:03:30,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dbd67da-37da-43dc-a17c-e89bc19c1007/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:03:30,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dbd67da-37da-43dc-a17c-e89bc19c1007/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:03:30,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dbd67da-37da-43dc-a17c-e89bc19c1007/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:03:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-12-02 21:03:30,130 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-12-02 21:03:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 21:03:30,130 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 21:03:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 21:03:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 21:03:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:03:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-12-02 21:03:30,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-12-02 21:03:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:03:30,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:03:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 21:03:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 21:03:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 21:03:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:03:30,275 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:03:30,277 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:03:30,413 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:03:30,450 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:03:30,450 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 21:03:30,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:03:30 BoogieIcfgContainer [2023-12-02 21:03:30,452 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:03:30,452 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:03:30,453 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:03:30,460 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:03:30,460 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:03:30" (1/1) ... [2023-12-02 21:03:30,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:03:30,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:30,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 37 states and 44 transitions. [2023-12-02 21:03:30,513 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2023-12-02 21:03:30,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:03:30,517 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:30,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:30,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:03:30,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:30,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 41 states and 50 transitions. [2023-12-02 21:03:30,920 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2023-12-02 21:03:30,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 21:03:30,921 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:30,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:30,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:03:31,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:31,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 40 states and 49 transitions. [2023-12-02 21:03:31,029 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2023-12-02 21:03:31,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 21:03:31,029 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:31,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:31,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:03:31,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:31,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 39 states and 48 transitions. [2023-12-02 21:03:31,169 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2023-12-02 21:03:31,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 21:03:31,170 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:31,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:31,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:31,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:03:31,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:31,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 38 states and 47 transitions. [2023-12-02 21:03:31,311 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2023-12-02 21:03:31,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 21:03:31,313 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:31,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:31,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:03:31,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:31,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 41 states and 53 transitions. [2023-12-02 21:03:31,628 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2023-12-02 21:03:31,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 21:03:31,629 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:31,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:31,796 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:03:32,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:32,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 44 states and 59 transitions. [2023-12-02 21:03:32,422 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 59 transitions. [2023-12-02 21:03:32,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 21:03:32,424 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:32,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:32,523 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:03:32,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:32,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 44 states and 58 transitions. [2023-12-02 21:03:32,670 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2023-12-02 21:03:32,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 21:03:32,671 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:32,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:32,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:03:33,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:33,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 41 states and 52 transitions. [2023-12-02 21:03:33,294 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2023-12-02 21:03:33,295 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 21:03:33,296 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-12-02 21:03:33,303 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-12-02 21:03:33,371 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 21:03:33,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 09:03:33 ImpRootNode [2023-12-02 21:03:33,375 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 21:03:33,376 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 21:03:33,376 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 21:03:33,376 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 21:03:33,377 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:03:30" (3/4) ... [2023-12-02 21:03:33,379 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 21:03:33,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-12-02 21:03:33,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-12-02 21:03:33,383 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~int~TO~VOID [2023-12-02 21:03:33,387 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2023-12-02 21:03:33,387 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-12-02 21:03:33,387 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 21:03:33,388 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 21:03:33,482 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dbd67da-37da-43dc-a17c-e89bc19c1007/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 21:03:33,483 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dbd67da-37da-43dc-a17c-e89bc19c1007/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 21:03:33,483 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 21:03:33,484 INFO L158 Benchmark]: Toolchain (without parser) took 4581.94ms. Allocated memory was 142.6MB in the beginning and 190.8MB in the end (delta: 48.2MB). Free memory was 92.2MB in the beginning and 64.9MB in the end (delta: 27.3MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2023-12-02 21:03:33,484 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory was 114.7MB in the beginning and 114.6MB in the end (delta: 24.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:03:33,485 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1047.17ms. Allocated memory was 142.6MB in the beginning and 190.8MB in the end (delta: 48.2MB). Free memory was 92.2MB in the beginning and 124.9MB in the end (delta: -32.8MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2023-12-02 21:03:33,485 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.17ms. Allocated memory is still 190.8MB. Free memory was 124.9MB in the beginning and 122.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 21:03:33,486 INFO L158 Benchmark]: Boogie Preprocessor took 28.98ms. Allocated memory is still 190.8MB. Free memory was 122.0MB in the beginning and 119.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 21:03:33,487 INFO L158 Benchmark]: RCFGBuilder took 412.45ms. Allocated memory is still 190.8MB. Free memory was 119.9MB in the beginning and 104.2MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 21:03:33,487 INFO L158 Benchmark]: CodeCheck took 2922.93ms. Allocated memory is still 190.8MB. Free memory was 103.1MB in the beginning and 70.0MB in the end (delta: 33.1MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2023-12-02 21:03:33,487 INFO L158 Benchmark]: Witness Printer took 107.15ms. Allocated memory is still 190.8MB. Free memory was 70.0MB in the beginning and 64.9MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 21:03:33,490 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 4 procedures, 37 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 348 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 109 mSDsluCounter, 258 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 94 mSDsCounter, 161 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 519 IncrementalHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 161 mSolverCounterUnsat, 164 mSDtfsCounter, 519 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1029 GetRequests, 958 SyntacticMatches, 5 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1033 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 221 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 13/13 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: 1593]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1593]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1583]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1583]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1576]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory was 114.7MB in the beginning and 114.6MB in the end (delta: 24.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1047.17ms. Allocated memory was 142.6MB in the beginning and 190.8MB in the end (delta: 48.2MB). Free memory was 92.2MB in the beginning and 124.9MB in the end (delta: -32.8MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.17ms. Allocated memory is still 190.8MB. Free memory was 124.9MB in the beginning and 122.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.98ms. Allocated memory is still 190.8MB. Free memory was 122.0MB in the beginning and 119.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 412.45ms. Allocated memory is still 190.8MB. Free memory was 119.9MB in the beginning and 104.2MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 2922.93ms. Allocated memory is still 190.8MB. Free memory was 103.1MB in the beginning and 70.0MB in the end (delta: 33.1MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. * Witness Printer took 107.15ms. Allocated memory is still 190.8MB. Free memory was 70.0MB in the beginning and 64.9MB 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! [2023-12-02 21:03:33,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dbd67da-37da-43dc-a17c-e89bc19c1007/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