./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_03_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_f5279109-5559-4165-a945-9eb29b9e46f6/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5279109-5559-4165-a945-9eb29b9e46f6/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_f5279109-5559-4165-a945-9eb29b9e46f6/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5279109-5559-4165-a945-9eb29b9e46f6/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_03_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5279109-5559-4165-a945-9eb29b9e46f6/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_f5279109-5559-4165-a945-9eb29b9e46f6/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 2d5a928396209f6afbe052db99b548634822ad989fb038e22efdc46c01ec1641 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:55:43,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:55:43,540 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5279109-5559-4165-a945-9eb29b9e46f6/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 01:55:43,544 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:55:43,545 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:55:43,568 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:55:43,568 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:55:43,569 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:55:43,570 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:55:43,570 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:55:43,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:55:43,571 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:55:43,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:55:43,572 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:55:43,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:55:43,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:55:43,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:55:43,574 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 01:55:43,575 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:55:43,575 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:55:43,576 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:55:43,576 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:55:43,577 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:55:43,577 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:55:43,577 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:55:43,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:55:43,578 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:55:43,579 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:55:43,579 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:55:43,580 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:55:43,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:55:43,580 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:55:43,581 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_f5279109-5559-4165-a945-9eb29b9e46f6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5279109-5559-4165-a945-9eb29b9e46f6/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d5a928396209f6afbe052db99b548634822ad989fb038e22efdc46c01ec1641 [2023-12-03 01:55:43,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:55:43,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:55:43,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:55:43,814 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:55:43,814 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:55:43,815 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5279109-5559-4165-a945-9eb29b9e46f6/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_03_good.i [2023-12-03 01:55:46,592 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:55:46,882 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:55:46,883 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5279109-5559-4165-a945-9eb29b9e46f6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_03_good.i [2023-12-03 01:55:46,907 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5279109-5559-4165-a945-9eb29b9e46f6/bin/ukojak-verify-Qdu7aM0XO9/data/23c185040/9bb4610d6b6540bba40edaa5ae803d69/FLAGf4a9068d3 [2023-12-03 01:55:46,922 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5279109-5559-4165-a945-9eb29b9e46f6/bin/ukojak-verify-Qdu7aM0XO9/data/23c185040/9bb4610d6b6540bba40edaa5ae803d69 [2023-12-03 01:55:46,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:55:46,926 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:55:46,928 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:55:46,928 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:55:46,933 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:55:46,933 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:55:46" (1/1) ... [2023-12-03 01:55:46,935 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e84de54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:46, skipping insertion in model container [2023-12-03 01:55:46,935 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:55:46" (1/1) ... [2023-12-03 01:55:47,010 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:55:47,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:55:47,765 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:55:47,853 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:55:47,971 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:55:47,971 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:55:47,971 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:55:47,971 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:55:47,977 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:55:47,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:47 WrapperNode [2023-12-03 01:55:47,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:55:47,978 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:55:47,978 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:55:47,979 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:55:47,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:47" (1/1) ... [2023-12-03 01:55:48,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:47" (1/1) ... [2023-12-03 01:55:48,042 INFO L138 Inliner]: procedures = 502, calls = 70, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 203 [2023-12-03 01:55:48,043 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:55:48,043 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:55:48,044 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:55:48,044 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:55:48,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:47" (1/1) ... [2023-12-03 01:55:48,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:47" (1/1) ... [2023-12-03 01:55:48,058 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:47" (1/1) ... [2023-12-03 01:55:48,059 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:47" (1/1) ... [2023-12-03 01:55:48,066 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:47" (1/1) ... [2023-12-03 01:55:48,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:47" (1/1) ... [2023-12-03 01:55:48,072 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:47" (1/1) ... [2023-12-03 01:55:48,074 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:47" (1/1) ... [2023-12-03 01:55:48,078 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:55:48,079 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:55:48,079 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:55:48,079 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:55:48,080 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:47" (1/1) ... [2023-12-03 01:55:48,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:55:48,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5279109-5559-4165-a945-9eb29b9e46f6/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:55:48,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5279109-5559-4165-a945-9eb29b9e46f6/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:55:48,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5279109-5559-4165-a945-9eb29b9e46f6/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:55:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-12-03 01:55:48,143 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-12-03 01:55:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 01:55:48,143 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 01:55:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:55:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:55:48,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:55:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 01:55:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:55:48,297 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:55:48,299 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:55:48,574 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:55:48,861 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:55:48,861 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-03 01:55:48,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:55:48 BoogieIcfgContainer [2023-12-03 01:55:48,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:55:48,864 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:55:48,864 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:55:48,872 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:55:48,872 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:55:48" (1/1) ... [2023-12-03 01:55:48,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:55:48,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:48,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 52 states and 66 transitions. [2023-12-03 01:55:48,927 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2023-12-03 01:55:48,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 01:55:48,931 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:48,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:55:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:49,224 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 01:55:49,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:49,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 49 states and 61 transitions. [2023-12-03 01:55:49,266 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2023-12-03 01:55:49,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 01:55:49,266 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:49,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:55:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:49,422 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 01:55:49,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:49,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 48 states and 60 transitions. [2023-12-03 01:55:49,503 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 60 transitions. [2023-12-03 01:55:49,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 01:55:49,503 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:49,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:55:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:49,667 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 01:55:49,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:49,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 47 states and 58 transitions. [2023-12-03 01:55:49,698 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 58 transitions. [2023-12-03 01:55:49,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 01:55:49,699 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:49,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:55:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:49,892 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 01:55:49,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:49,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 46 states and 57 transitions. [2023-12-03 01:55:49,991 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2023-12-03 01:55:49,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-03 01:55:49,992 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:49,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:55:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:50,108 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 01:55:50,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:50,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 43 states and 51 transitions. [2023-12-03 01:55:50,165 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2023-12-03 01:55:50,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 01:55:50,166 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:50,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:55:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:50,310 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 01:55:50,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:50,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 42 states and 50 transitions. [2023-12-03 01:55:50,460 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2023-12-03 01:55:50,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-03 01:55:50,461 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:50,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:55:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:50,599 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 01:55:50,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:50,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 41 states and 48 transitions. [2023-12-03 01:55:50,676 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2023-12-03 01:55:50,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-03 01:55:50,677 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:50,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:55:50,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:50,818 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 01:55:51,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:51,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 40 states and 47 transitions. [2023-12-03 01:55:51,022 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2023-12-03 01:55:51,023 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 01:55:51,023 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-12-03 01:55:51,032 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-12-03 01:55:51,080 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 01:55:51,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:55:51 ImpRootNode [2023-12-03 01:55:51,085 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:55:51,085 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:55:51,085 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:55:51,086 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:55:51,086 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:55:48" (3/4) ... [2023-12-03 01:55:51,088 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 01:55:51,091 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-12-03 01:55:51,091 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-12-03 01:55:51,099 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2023-12-03 01:55:51,100 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-12-03 01:55:51,101 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-03 01:55:51,102 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 01:55:51,219 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5279109-5559-4165-a945-9eb29b9e46f6/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 01:55:51,220 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5279109-5559-4165-a945-9eb29b9e46f6/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 01:55:51,220 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:55:51,221 INFO L158 Benchmark]: Toolchain (without parser) took 4294.35ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 110.9MB in the beginning and 67.1MB in the end (delta: 43.7MB). Peak memory consumption was 87.8MB. Max. memory is 16.1GB. [2023-12-03 01:55:51,221 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 104.9MB. Free memory is still 58.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:55:51,221 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1050.13ms. Allocated memory is still 155.2MB. Free memory was 110.4MB in the beginning and 108.9MB in the end (delta: 1.5MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. [2023-12-03 01:55:51,222 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.51ms. Allocated memory is still 155.2MB. Free memory was 108.9MB in the beginning and 105.4MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:55:51,222 INFO L158 Benchmark]: Boogie Preprocessor took 34.98ms. Allocated memory is still 155.2MB. Free memory was 104.7MB in the beginning and 103.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:55:51,223 INFO L158 Benchmark]: RCFGBuilder took 784.16ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 103.4MB in the beginning and 138.2MB in the end (delta: -34.9MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. [2023-12-03 01:55:51,223 INFO L158 Benchmark]: CodeCheck took 2220.77ms. Allocated memory is still 195.0MB. Free memory was 138.2MB in the beginning and 74.4MB in the end (delta: 63.9MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. [2023-12-03 01:55:51,223 INFO L158 Benchmark]: Witness Printer took 134.52ms. Allocated memory is still 195.0MB. Free memory was 74.4MB in the beginning and 67.1MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-03 01:55:51,226 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, 52 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, 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, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 226 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 142 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 332 IncrementalHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 142 mSolverCounterUnsat, 198 mSDtfsCounter, 332 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1001 GetRequests, 961 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 202 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 0.21ms. Allocated memory is still 104.9MB. Free memory is still 58.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1050.13ms. Allocated memory is still 155.2MB. Free memory was 110.4MB in the beginning and 108.9MB in the end (delta: 1.5MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.51ms. Allocated memory is still 155.2MB. Free memory was 108.9MB in the beginning and 105.4MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.98ms. Allocated memory is still 155.2MB. Free memory was 104.7MB in the beginning and 103.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 784.16ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 103.4MB in the beginning and 138.2MB in the end (delta: -34.9MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. * CodeCheck took 2220.77ms. Allocated memory is still 195.0MB. Free memory was 138.2MB in the beginning and 74.4MB in the end (delta: 63.9MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. * Witness Printer took 134.52ms. Allocated memory is still 195.0MB. Free memory was 74.4MB in the beginning and 67.1MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 01:55:51,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5279109-5559-4165-a945-9eb29b9e46f6/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