./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_41_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_01e50b3e-7944-4a58-af8c-9a45a66af3ae/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e50b3e-7944-4a58-af8c-9a45a66af3ae/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_01e50b3e-7944-4a58-af8c-9a45a66af3ae/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e50b3e-7944-4a58-af8c-9a45a66af3ae/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_41_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e50b3e-7944-4a58-af8c-9a45a66af3ae/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_01e50b3e-7944-4a58-af8c-9a45a66af3ae/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 5571302c2f56194228096a0aaa1a6f0ee3ebb5e2479a11d26f49f353d275f8db --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:10:20,627 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:10:20,741 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e50b3e-7944-4a58-af8c-9a45a66af3ae/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 03:10:20,748 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:10:20,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:10:20,779 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:10:20,780 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:10:20,781 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:10:20,782 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:10:20,782 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:10:20,783 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:10:20,784 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:10:20,784 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:10:20,785 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:10:20,785 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:10:20,786 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:10:20,786 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:10:20,791 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:10:20,792 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:10:20,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:10:20,793 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:10:20,793 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:10:20,794 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:10:20,794 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:10:20,795 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:10:20,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:10:20,795 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:10:20,796 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:10:20,796 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:10:20,797 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:10:20,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:10:20,797 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:10:20,798 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_01e50b3e-7944-4a58-af8c-9a45a66af3ae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e50b3e-7944-4a58-af8c-9a45a66af3ae/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5571302c2f56194228096a0aaa1a6f0ee3ebb5e2479a11d26f49f353d275f8db [2023-11-19 03:10:21,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:10:21,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:10:21,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:10:21,048 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:10:21,048 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:10:21,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e50b3e-7944-4a58-af8c-9a45a66af3ae/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_41_good.i [2023-11-19 03:10:24,137 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:10:24,550 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:10:24,551 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e50b3e-7944-4a58-af8c-9a45a66af3ae/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_41_good.i [2023-11-19 03:10:24,586 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e50b3e-7944-4a58-af8c-9a45a66af3ae/bin/ukojak-verify-G8NBE6pJGL/data/a3b637bf6/0ac12e3f9cb2462ea7b89103295ee647/FLAGeae4e2b9d [2023-11-19 03:10:24,602 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e50b3e-7944-4a58-af8c-9a45a66af3ae/bin/ukojak-verify-G8NBE6pJGL/data/a3b637bf6/0ac12e3f9cb2462ea7b89103295ee647 [2023-11-19 03:10:24,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:10:24,610 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:10:24,613 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:10:24,613 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:10:24,618 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:10:24,619 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:10:24" (1/1) ... [2023-11-19 03:10:24,620 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5056548b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:24, skipping insertion in model container [2023-11-19 03:10:24,621 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:10:24" (1/1) ... [2023-11-19 03:10:24,699 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:10:25,091 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:10:25,598 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:10:25,608 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:10:25,629 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:10:25,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:10:25,904 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:10:25,904 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:10:25,904 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:10:25,905 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:10:25,905 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:10:25,913 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:10:25,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:25 WrapperNode [2023-11-19 03:10:25,914 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:10:25,915 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:10:25,915 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:10:25,915 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:10:25,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:25" (1/1) ... [2023-11-19 03:10:25,953 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:25" (1/1) ... [2023-11-19 03:10:25,986 INFO L138 Inliner]: procedures = 503, calls = 63, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 57 [2023-11-19 03:10:25,987 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:10:25,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:10:25,988 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:10:25,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:10:25,998 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:25" (1/1) ... [2023-11-19 03:10:25,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:25" (1/1) ... [2023-11-19 03:10:26,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:25" (1/1) ... [2023-11-19 03:10:26,002 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:25" (1/1) ... [2023-11-19 03:10:26,008 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:25" (1/1) ... [2023-11-19 03:10:26,010 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:25" (1/1) ... [2023-11-19 03:10:26,011 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:25" (1/1) ... [2023-11-19 03:10:26,013 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:25" (1/1) ... [2023-11-19 03:10:26,016 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:10:26,017 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:10:26,017 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:10:26,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:10:26,018 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:25" (1/1) ... [2023-11-19 03:10:26,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:10:26,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e50b3e-7944-4a58-af8c-9a45a66af3ae/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:10:26,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e50b3e-7944-4a58-af8c-9a45a66af3ae/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:10:26,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e50b3e-7944-4a58-af8c-9a45a66af3ae/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:10:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-19 03:10:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-19 03:10:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 03:10:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 03:10:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:10:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:10:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:10:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 03:10:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:10:26,266 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:10:26,269 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:10:26,413 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:10:26,460 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:10:26,462 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:10:26,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:10:26 BoogieIcfgContainer [2023-11-19 03:10:26,467 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:10:26,468 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:10:26,468 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:10:26,477 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:10:26,477 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:10:26" (1/1) ... [2023-11-19 03:10:26,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:10:26,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:26,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 25 states and 28 transitions. [2023-11-19 03:10:26,533 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2023-11-19 03:10:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:10:26,537 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:26,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:26,825 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 03:10:26,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:26,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 20 transitions. [2023-11-19 03:10:26,860 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2023-11-19 03:10:26,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:10:26,861 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:26,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:27,055 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 03:10:27,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:27,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 19 transitions. [2023-11-19 03:10:27,082 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2023-11-19 03:10:27,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 03:10:27,083 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:27,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:27,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:27,249 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 03:10:27,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:27,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 18 transitions. [2023-11-19 03:10:27,329 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2023-11-19 03:10:27,329 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:10:27,329 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2023-11-19 03:10:27,338 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-19 03:10:27,366 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:10:27,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:10:27 ImpRootNode [2023-11-19 03:10:27,371 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:10:27,371 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:10:27,372 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:10:27,372 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:10:27,372 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:10:26" (3/4) ... [2023-11-19 03:10:27,377 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:10:27,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-19 03:10:27,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-19 03:10:27,392 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-11-19 03:10:27,392 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-19 03:10:27,392 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 03:10:27,393 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:10:27,504 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e50b3e-7944-4a58-af8c-9a45a66af3ae/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:10:27,505 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e50b3e-7944-4a58-af8c-9a45a66af3ae/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:10:27,505 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:10:27,506 INFO L158 Benchmark]: Toolchain (without parser) took 2895.66ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 92.2MB in the beginning and 143.6MB in the end (delta: -51.4MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2023-11-19 03:10:27,506 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 92.3MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:10:27,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1300.82ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 91.7MB in the beginning and 129.5MB in the end (delta: -37.8MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. [2023-11-19 03:10:27,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.38ms. Allocated memory is still 188.7MB. Free memory was 129.5MB in the beginning and 126.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:10:27,508 INFO L158 Benchmark]: Boogie Preprocessor took 28.45ms. Allocated memory is still 188.7MB. Free memory was 126.4MB in the beginning and 125.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:10:27,508 INFO L158 Benchmark]: RCFGBuilder took 449.73ms. Allocated memory is still 188.7MB. Free memory was 125.3MB in the beginning and 110.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 03:10:27,508 INFO L158 Benchmark]: CodeCheck took 903.28ms. Allocated memory is still 188.7MB. Free memory was 110.6MB in the beginning and 148.9MB in the end (delta: -38.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:10:27,509 INFO L158 Benchmark]: Witness Printer took 133.66ms. Allocated memory is still 188.7MB. Free memory was 148.9MB in the beginning and 143.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:10:27,511 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, 25 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 29 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 177 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 43 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: 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: 1593]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 92.3MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1300.82ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 91.7MB in the beginning and 129.5MB in the end (delta: -37.8MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.38ms. Allocated memory is still 188.7MB. Free memory was 129.5MB in the beginning and 126.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.45ms. Allocated memory is still 188.7MB. Free memory was 126.4MB in the beginning and 125.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 449.73ms. Allocated memory is still 188.7MB. Free memory was 125.3MB in the beginning and 110.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 903.28ms. Allocated memory is still 188.7MB. Free memory was 110.6MB in the beginning and 148.9MB in the end (delta: -38.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 133.66ms. Allocated memory is still 188.7MB. Free memory was 148.9MB in the beginning and 143.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:10:27,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e50b3e-7944-4a58-af8c-9a45a66af3ae/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