./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_52_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_631a2e85-ce26-4365-8fe0-f133ddfa57da/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_631a2e85-ce26-4365-8fe0-f133ddfa57da/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_631a2e85-ce26-4365-8fe0-f133ddfa57da/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_631a2e85-ce26-4365-8fe0-f133ddfa57da/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_52_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_631a2e85-ce26-4365-8fe0-f133ddfa57da/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_631a2e85-ce26-4365-8fe0-f133ddfa57da/bin/ukojak-verify-G8NBE6pJGL --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 f286b4903c4ab6ac463dd02480e48817d25384694d883e1818d2969aa9e2701a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:57:09,393 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:57:09,536 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_631a2e85-ce26-4365-8fe0-f133ddfa57da/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 02:57:09,541 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:57:09,542 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:57:09,579 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:57:09,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:57:09,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:57:09,583 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:57:09,588 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:57:09,589 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:57:09,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:57:09,590 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:57:09,592 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:57:09,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:57:09,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:57:09,594 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:57:09,594 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:57:09,594 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:57:09,595 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:57:09,595 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:57:09,596 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:57:09,596 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:57:09,597 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:57:09,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:57:09,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:57:09,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:57:09,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:57:09,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:57:09,600 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:57:09,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:57:09,602 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:57:09,602 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_631a2e85-ce26-4365-8fe0-f133ddfa57da/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_631a2e85-ce26-4365-8fe0-f133ddfa57da/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f286b4903c4ab6ac463dd02480e48817d25384694d883e1818d2969aa9e2701a [2023-11-19 02:57:09,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:57:09,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:57:09,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:57:09,912 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:57:09,913 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:57:09,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_631a2e85-ce26-4365-8fe0-f133ddfa57da/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_52_good.i [2023-11-19 02:57:13,251 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:57:13,765 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:57:13,769 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_631a2e85-ce26-4365-8fe0-f133ddfa57da/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_52_good.i [2023-11-19 02:57:13,817 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_631a2e85-ce26-4365-8fe0-f133ddfa57da/bin/ukojak-verify-G8NBE6pJGL/data/c9a9f913b/d753fb1432854951ba3dd01b1ffd2ebd/FLAG68ab17122 [2023-11-19 02:57:13,843 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_631a2e85-ce26-4365-8fe0-f133ddfa57da/bin/ukojak-verify-G8NBE6pJGL/data/c9a9f913b/d753fb1432854951ba3dd01b1ffd2ebd [2023-11-19 02:57:13,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:57:13,853 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:57:13,860 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:57:13,861 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:57:13,867 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:57:13,868 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:57:13" (1/1) ... [2023-11-19 02:57:13,872 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b5a3360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:13, skipping insertion in model container [2023-11-19 02:57:13,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:57:13" (1/1) ... [2023-11-19 02:57:13,987 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:57:14,486 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:57:15,343 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:57:15,359 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:57:15,386 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:57:15,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:57:15,740 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:57:15,740 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:57:15,741 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:57:15,741 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:57:15,741 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:57:15,741 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:57:15,751 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:57:15,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:15 WrapperNode [2023-11-19 02:57:15,752 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:57:15,753 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:57:15,753 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:57:15,754 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:57:15,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:15" (1/1) ... [2023-11-19 02:57:15,803 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:15" (1/1) ... [2023-11-19 02:57:15,856 INFO L138 Inliner]: procedures = 506, calls = 73, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 77 [2023-11-19 02:57:15,857 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:57:15,858 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:57:15,858 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:57:15,858 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:57:15,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:15" (1/1) ... [2023-11-19 02:57:15,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:15" (1/1) ... [2023-11-19 02:57:15,877 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:15" (1/1) ... [2023-11-19 02:57:15,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:15" (1/1) ... [2023-11-19 02:57:15,888 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:15" (1/1) ... [2023-11-19 02:57:15,890 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:15" (1/1) ... [2023-11-19 02:57:15,893 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:15" (1/1) ... [2023-11-19 02:57:15,896 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:15" (1/1) ... [2023-11-19 02:57:15,900 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:57:15,901 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:57:15,901 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:57:15,902 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:57:15,903 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:15" (1/1) ... [2023-11-19 02:57:15,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:57:15,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_631a2e85-ce26-4365-8fe0-f133ddfa57da/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:57:15,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_631a2e85-ce26-4365-8fe0-f133ddfa57da/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:57:15,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_631a2e85-ce26-4365-8fe0-f133ddfa57da/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:57:16,029 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-19 02:57:16,029 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-19 02:57:16,029 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 02:57:16,030 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 02:57:16,030 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 02:57:16,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:57:16,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 02:57:16,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:57:16,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:57:16,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:57:16,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:57:16,031 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 02:57:16,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:57:16,235 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:57:16,237 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:57:16,442 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:57:16,496 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:57:16,496 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:57:16,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:57:16 BoogieIcfgContainer [2023-11-19 02:57:16,502 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:57:16,504 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:57:16,504 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:57:16,518 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:57:16,519 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:57:16" (1/1) ... [2023-11-19 02:57:16,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:57:16,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:57:16,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2023-11-19 02:57:16,609 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-19 02:57:16,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 02:57:16,614 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:57:16,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:57:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:17,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:57:17,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:57:17,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2023-11-19 02:57:17,170 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2023-11-19 02:57:17,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:57:17,171 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:57:17,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:57:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:17,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:57:17,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:57:17,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2023-11-19 02:57:17,390 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2023-11-19 02:57:17,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 02:57:17,391 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:57:17,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:57:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:17,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:57:17,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:57:17,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2023-11-19 02:57:17,670 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2023-11-19 02:57:17,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 02:57:17,672 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:57:17,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:57:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:18,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:57:18,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:57:18,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2023-11-19 02:57:18,192 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2023-11-19 02:57:18,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 02:57:18,194 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:57:18,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:57:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:18,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:57:18,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:57:18,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 29 transitions. [2023-11-19 02:57:18,539 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2023-11-19 02:57:18,540 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:57:18,540 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2023-11-19 02:57:18,552 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-19 02:57:18,603 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:57:18,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:57:18 ImpRootNode [2023-11-19 02:57:18,609 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:57:18,610 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:57:18,611 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:57:18,611 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:57:18,612 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:57:16" (3/4) ... [2023-11-19 02:57:18,627 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:57:18,634 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-19 02:57:18,634 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-19 02:57:18,645 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2023-11-19 02:57:18,646 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-19 02:57:18,646 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 02:57:18,647 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:57:18,784 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_631a2e85-ce26-4365-8fe0-f133ddfa57da/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:57:18,785 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_631a2e85-ce26-4365-8fe0-f133ddfa57da/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:57:18,785 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:57:18,786 INFO L158 Benchmark]: Toolchain (without parser) took 4932.73ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 112.4MB in the beginning and 114.9MB in the end (delta: -2.4MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. [2023-11-19 02:57:18,787 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 163.6MB. Free memory is still 108.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:57:18,788 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1892.24ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 112.4MB in the beginning and 155.5MB in the end (delta: -43.0MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. [2023-11-19 02:57:18,788 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.94ms. Allocated memory is still 209.7MB. Free memory was 155.5MB in the beginning and 152.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:57:18,789 INFO L158 Benchmark]: Boogie Preprocessor took 42.56ms. Allocated memory is still 209.7MB. Free memory was 152.3MB in the beginning and 151.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:57:18,790 INFO L158 Benchmark]: RCFGBuilder took 601.47ms. Allocated memory is still 209.7MB. Free memory was 151.3MB in the beginning and 134.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 02:57:18,790 INFO L158 Benchmark]: CodeCheck took 2105.21ms. Allocated memory is still 209.7MB. Free memory was 134.5MB in the beginning and 120.1MB in the end (delta: 14.4MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2023-11-19 02:57:18,791 INFO L158 Benchmark]: Witness Printer took 174.99ms. Allocated memory is still 209.7MB. Free memory was 120.1MB in the beginning and 114.9MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 02:57:18,794 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, 28 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 160 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 121 IncrementalHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 76 mSDtfsCounter, 121 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 444 GetRequests, 418 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 94 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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: 1600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1609]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1609]: 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: 1584]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 163.6MB. Free memory is still 108.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1892.24ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 112.4MB in the beginning and 155.5MB in the end (delta: -43.0MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.94ms. Allocated memory is still 209.7MB. Free memory was 155.5MB in the beginning and 152.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.56ms. Allocated memory is still 209.7MB. Free memory was 152.3MB in the beginning and 151.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 601.47ms. Allocated memory is still 209.7MB. Free memory was 151.3MB in the beginning and 134.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 2105.21ms. Allocated memory is still 209.7MB. Free memory was 134.5MB in the beginning and 120.1MB in the end (delta: 14.4MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * Witness Printer took 174.99ms. Allocated memory is still 209.7MB. Free memory was 120.1MB in the beginning and 114.9MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 02:57:18,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_631a2e85-ce26-4365-8fe0-f133ddfa57da/bin/ukojak-verify-G8NBE6pJGL/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