./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_42_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_c54b2dfe-fad2-42b4-92f7-83d90224ee48/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54b2dfe-fad2-42b4-92f7-83d90224ee48/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_c54b2dfe-fad2-42b4-92f7-83d90224ee48/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54b2dfe-fad2-42b4-92f7-83d90224ee48/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_42_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54b2dfe-fad2-42b4-92f7-83d90224ee48/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_c54b2dfe-fad2-42b4-92f7-83d90224ee48/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 bde127a5a57913920f402fd5fca2918ecec589848a89a1a86778ab52ff96d513 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:30:09,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:30:09,098 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54b2dfe-fad2-42b4-92f7-83d90224ee48/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 02:30:09,102 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 02:30:09,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 02:30:09,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:30:09,124 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:30:09,125 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:30:09,126 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:30:09,126 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:30:09,127 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:30:09,127 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:30:09,128 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 02:30:09,128 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:30:09,129 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:30:09,129 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:30:09,130 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:30:09,130 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 02:30:09,131 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 02:30:09,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:30:09,132 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:30:09,136 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:30:09,136 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:30:09,136 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:30:09,137 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:30:09,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:30:09,137 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:30:09,138 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:30:09,138 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:30:09,139 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 02:30:09,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 02:30:09,140 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:30:09,140 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_c54b2dfe-fad2-42b4-92f7-83d90224ee48/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54b2dfe-fad2-42b4-92f7-83d90224ee48/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bde127a5a57913920f402fd5fca2918ecec589848a89a1a86778ab52ff96d513 [2023-12-03 02:30:09,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:30:09,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:30:09,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:30:09,412 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:30:09,413 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:30:09,414 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54b2dfe-fad2-42b4-92f7-83d90224ee48/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_42_good.i [2023-12-03 02:30:12,277 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:30:12,576 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:30:12,577 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54b2dfe-fad2-42b4-92f7-83d90224ee48/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_42_good.i [2023-12-03 02:30:12,601 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54b2dfe-fad2-42b4-92f7-83d90224ee48/bin/ukojak-verify-Qdu7aM0XO9/data/d342f8ffc/9ede2737b6bf4efeb9f610237346a0b7/FLAG3a3ac3562 [2023-12-03 02:30:12,615 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54b2dfe-fad2-42b4-92f7-83d90224ee48/bin/ukojak-verify-Qdu7aM0XO9/data/d342f8ffc/9ede2737b6bf4efeb9f610237346a0b7 [2023-12-03 02:30:12,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:30:12,619 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:30:12,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:30:12,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:30:12,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:30:12,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:30:12" (1/1) ... [2023-12-03 02:30:12,627 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211ff50a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:30:12, skipping insertion in model container [2023-12-03 02:30:12,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:30:12" (1/1) ... [2023-12-03 02:30:12,690 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:30:13,453 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:30:13,464 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:30:13,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:30:13,675 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:30:13,675 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:30:13,675 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:30:13,675 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:30:13,675 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:30:13,681 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:30:13,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:30:13 WrapperNode [2023-12-03 02:30:13,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:30:13,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:30:13,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:30:13,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:30:13,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:30:13" (1/1) ... [2023-12-03 02:30:13,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:30:13" (1/1) ... [2023-12-03 02:30:13,740 INFO L138 Inliner]: procedures = 503, calls = 70, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 90 [2023-12-03 02:30:13,741 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:30:13,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:30:13,742 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:30:13,742 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:30:13,750 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:30:13" (1/1) ... [2023-12-03 02:30:13,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:30:13" (1/1) ... [2023-12-03 02:30:13,754 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:30:13" (1/1) ... [2023-12-03 02:30:13,754 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:30:13" (1/1) ... [2023-12-03 02:30:13,761 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:30:13" (1/1) ... [2023-12-03 02:30:13,763 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:30:13" (1/1) ... [2023-12-03 02:30:13,766 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:30:13" (1/1) ... [2023-12-03 02:30:13,767 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:30:13" (1/1) ... [2023-12-03 02:30:13,771 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:30:13,772 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:30:13,772 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:30:13,772 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:30:13,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:30:13" (1/1) ... [2023-12-03 02:30:13,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:30:13,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54b2dfe-fad2-42b4-92f7-83d90224ee48/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:30:13,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54b2dfe-fad2-42b4-92f7-83d90224ee48/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:30:13,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54b2dfe-fad2-42b4-92f7-83d90224ee48/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:30:13,848 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-12-03 02:30:13,848 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-12-03 02:30:13,848 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 02:30:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 02:30:13,849 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 02:30:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 02:30:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-03 02:30:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:30:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:30:13,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:30:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 02:30:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 02:30:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 02:30:13,995 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:30:13,997 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:30:14,122 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:30:14,165 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:30:14,165 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 02:30:14,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:30:14 BoogieIcfgContainer [2023-12-03 02:30:14,167 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:30:14,167 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:30:14,168 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:30:14,176 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:30:14,176 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:30:14" (1/1) ... [2023-12-03 02:30:14,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:30:14,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:30:14,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 30 states and 35 transitions. [2023-12-03 02:30:14,229 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2023-12-03 02:30:14,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 02:30:14,233 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:30:14,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:30:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:30:14,505 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 02:30:14,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:30:14,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 29 states and 34 transitions. [2023-12-03 02:30:14,539 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2023-12-03 02:30:14,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 02:30:14,540 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:30:14,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:30:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:30:14,703 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 02:30:14,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:30:14,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 29 states and 34 transitions. [2023-12-03 02:30:14,803 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2023-12-03 02:30:14,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 02:30:14,803 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:30:14,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:30:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:30:14,896 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 02:30:14,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:30:14,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2023-12-03 02:30:14,922 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-12-03 02:30:14,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 02:30:14,923 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:30:14,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:30:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:30:14,994 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 02:30:15,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:30:15,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2023-12-03 02:30:15,063 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2023-12-03 02:30:15,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 02:30:15,064 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-12-03 02:30:15,072 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-12-03 02:30:15,101 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 02:30:15,105 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 02:30:15,105 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 02:30:15,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 02:30:15 ImpRootNode [2023-12-03 02:30:15,106 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 02:30:15,107 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 02:30:15,107 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 02:30:15,107 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 02:30:15,108 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:30:14" (3/4) ... [2023-12-03 02:30:15,109 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 02:30:15,113 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-12-03 02:30:15,113 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-12-03 02:30:15,118 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-12-03 02:30:15,118 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-12-03 02:30:15,119 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-03 02:30:15,119 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 02:30:15,219 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54b2dfe-fad2-42b4-92f7-83d90224ee48/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 02:30:15,219 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54b2dfe-fad2-42b4-92f7-83d90224ee48/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 02:30:15,220 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 02:30:15,220 INFO L158 Benchmark]: Toolchain (without parser) took 2601.34ms. Allocated memory is still 146.8MB. Free memory was 105.4MB in the beginning and 67.0MB in the end (delta: 38.4MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2023-12-03 02:30:15,221 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 146.8MB. Free memory is still 119.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:30:15,221 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1061.37ms. Allocated memory is still 146.8MB. Free memory was 105.4MB in the beginning and 97.2MB in the end (delta: 8.2MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. [2023-12-03 02:30:15,222 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.48ms. Allocated memory is still 146.8MB. Free memory was 97.2MB in the beginning and 94.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:30:15,222 INFO L158 Benchmark]: Boogie Preprocessor took 29.73ms. Allocated memory is still 146.8MB. Free memory was 94.3MB in the beginning and 92.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:30:15,222 INFO L158 Benchmark]: RCFGBuilder took 394.83ms. Allocated memory is still 146.8MB. Free memory was 92.3MB in the beginning and 75.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 02:30:15,223 INFO L158 Benchmark]: CodeCheck took 938.71ms. Allocated memory is still 146.8MB. Free memory was 75.5MB in the beginning and 72.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2023-12-03 02:30:15,223 INFO L158 Benchmark]: Witness Printer took 113.02ms. Allocated memory is still 146.8MB. Free memory was 72.0MB in the beginning and 67.0MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 02:30:15,225 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, 30 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 66 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 60 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 320 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 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: 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: 1559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1559]: 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: 1579]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1568]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1605]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 146.8MB. Free memory is still 119.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1061.37ms. Allocated memory is still 146.8MB. Free memory was 105.4MB in the beginning and 97.2MB in the end (delta: 8.2MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.48ms. Allocated memory is still 146.8MB. Free memory was 97.2MB in the beginning and 94.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.73ms. Allocated memory is still 146.8MB. Free memory was 94.3MB in the beginning and 92.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 394.83ms. Allocated memory is still 146.8MB. Free memory was 92.3MB in the beginning and 75.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 938.71ms. Allocated memory is still 146.8MB. Free memory was 75.5MB in the beginning and 72.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * Witness Printer took 113.02ms. Allocated memory is still 146.8MB. Free memory was 72.0MB in the beginning and 67.0MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 02:30:15,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54b2dfe-fad2-42b4-92f7-83d90224ee48/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