./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_18_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e8609e-f6b6-445c-9716-55ee16c36dd4/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e8609e-f6b6-445c-9716-55ee16c36dd4/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e8609e-f6b6-445c-9716-55ee16c36dd4/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e8609e-f6b6-445c-9716-55ee16c36dd4/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_18_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e8609e-f6b6-445c-9716-55ee16c36dd4/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e8609e-f6b6-445c-9716-55ee16c36dd4/bin/ukojak-verify-afCqCEvfdi --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 34676a40b0ced185e49e266d07399c1cdfa5ef803c53083296ae529c35442d5a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:18:43,807 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:18:43,914 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e8609e-f6b6-445c-9716-55ee16c36dd4/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 22:18:43,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:18:43,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:18:43,968 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:18:43,969 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:18:43,970 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:18:43,980 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:18:43,981 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:18:43,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:18:43,982 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:18:43,983 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:18:43,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:18:43,984 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:18:43,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:18:43,985 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:18:43,985 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:18:43,986 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:18:43,986 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:18:43,987 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:18:43,987 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:18:43,988 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:18:43,988 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:18:43,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:18:43,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:18:43,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:18:43,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:18:43,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:18:43,991 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:18:43,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:18:43,992 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:18:43,992 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_52e8609e-f6b6-445c-9716-55ee16c36dd4/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e8609e-f6b6-445c-9716-55ee16c36dd4/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34676a40b0ced185e49e266d07399c1cdfa5ef803c53083296ae529c35442d5a [2023-11-24 22:18:44,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:18:44,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:18:44,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:18:44,261 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:18:44,262 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:18:44,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e8609e-f6b6-445c-9716-55ee16c36dd4/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_18_good.i [2023-11-24 22:18:47,352 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:18:47,724 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:18:47,734 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e8609e-f6b6-445c-9716-55ee16c36dd4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_18_good.i [2023-11-24 22:18:47,761 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e8609e-f6b6-445c-9716-55ee16c36dd4/bin/ukojak-verify-afCqCEvfdi/data/336cd26ba/7ff4c15650104e158c2fc30ec6714e47/FLAG17f0486e8 [2023-11-24 22:18:47,776 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e8609e-f6b6-445c-9716-55ee16c36dd4/bin/ukojak-verify-afCqCEvfdi/data/336cd26ba/7ff4c15650104e158c2fc30ec6714e47 [2023-11-24 22:18:47,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:18:47,780 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:18:47,782 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:18:47,782 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:18:47,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:18:47,788 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:18:47" (1/1) ... [2023-11-24 22:18:47,789 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29db34e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:47, skipping insertion in model container [2023-11-24 22:18:47,789 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:18:47" (1/1) ... [2023-11-24 22:18:47,854 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:18:48,809 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:18:48,819 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:18:48,901 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:18:49,075 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:18:49,076 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:18:49,076 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:18:49,076 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:18:49,084 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:18:49,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:49 WrapperNode [2023-11-24 22:18:49,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:18:49,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:18:49,086 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:18:49,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:18:49,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:49" (1/1) ... [2023-11-24 22:18:49,134 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:49" (1/1) ... [2023-11-24 22:18:49,172 INFO L138 Inliner]: procedures = 500, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2023-11-24 22:18:49,173 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:18:49,174 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:18:49,174 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:18:49,174 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:18:49,184 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:49" (1/1) ... [2023-11-24 22:18:49,184 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:49" (1/1) ... [2023-11-24 22:18:49,201 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:49" (1/1) ... [2023-11-24 22:18:49,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:49" (1/1) ... [2023-11-24 22:18:49,219 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:49" (1/1) ... [2023-11-24 22:18:49,221 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:49" (1/1) ... [2023-11-24 22:18:49,223 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:49" (1/1) ... [2023-11-24 22:18:49,224 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:49" (1/1) ... [2023-11-24 22:18:49,227 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:18:49,236 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:18:49,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:18:49,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:18:49,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:49" (1/1) ... [2023-11-24 22:18:49,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:18:49,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e8609e-f6b6-445c-9716-55ee16c36dd4/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:18:49,272 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e8609e-f6b6-445c-9716-55ee16c36dd4/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:18:49,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e8609e-f6b6-445c-9716-55ee16c36dd4/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:18:49,309 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-24 22:18:49,309 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-24 22:18:49,309 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 22:18:49,310 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 22:18:49,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:18:49,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:18:49,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:18:49,312 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 22:18:49,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:18:49,481 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:18:49,483 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:18:49,593 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:18:49,644 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:18:49,653 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:18:49,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:18:49 BoogieIcfgContainer [2023-11-24 22:18:49,656 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:18:49,657 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:18:49,657 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:18:49,666 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:18:49,666 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:18:49" (1/1) ... [2023-11-24 22:18:49,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:18:49,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:18:49,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 26 states and 29 transitions. [2023-11-24 22:18:49,729 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2023-11-24 22:18:49,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:18:49,732 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:18:49,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:18:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:18:50,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:18:50,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:18:50,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 21 transitions. [2023-11-24 22:18:50,111 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2023-11-24 22:18:50,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 22:18:50,112 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:18:50,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:18:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:18:50,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:18:50,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:18:50,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 20 transitions. [2023-11-24 22:18:50,299 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2023-11-24 22:18:50,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 22:18:50,300 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:18:50,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:18:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:18:50,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:18:50,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:18:50,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 19 transitions. [2023-11-24 22:18:50,449 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2023-11-24 22:18:50,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:18:50,450 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2023-11-24 22:18:50,458 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-24 22:18:50,481 INFO L560 CodeCheckObserver]: Invariant with dag size 5 [2023-11-24 22:18:50,488 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:18:50,488 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:18:50,488 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:18:50,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:18:50 ImpRootNode [2023-11-24 22:18:50,489 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:18:50,490 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:18:50,490 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:18:50,490 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:18:50,491 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:18:49" (3/4) ... [2023-11-24 22:18:50,493 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:18:50,496 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-24 22:18:50,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-24 22:18:50,501 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-24 22:18:50,502 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-24 22:18:50,502 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 22:18:50,502 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:18:50,601 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e8609e-f6b6-445c-9716-55ee16c36dd4/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:18:50,601 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e8609e-f6b6-445c-9716-55ee16c36dd4/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 22:18:50,601 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:18:50,602 INFO L158 Benchmark]: Toolchain (without parser) took 2821.90ms. Allocated memory was 115.3MB in the beginning and 155.2MB in the end (delta: 39.8MB). Free memory was 67.8MB in the beginning and 75.7MB in the end (delta: -7.8MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2023-11-24 22:18:50,603 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:18:50,603 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1303.14ms. Allocated memory is still 115.3MB. Free memory was 67.8MB in the beginning and 51.5MB in the end (delta: 16.3MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2023-11-24 22:18:50,604 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.34ms. Allocated memory is still 115.3MB. Free memory was 51.5MB in the beginning and 48.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:18:50,604 INFO L158 Benchmark]: Boogie Preprocessor took 53.98ms. Allocated memory is still 115.3MB. Free memory was 48.7MB in the beginning and 47.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:18:50,605 INFO L158 Benchmark]: RCFGBuilder took 419.55ms. Allocated memory was 115.3MB in the beginning and 155.2MB in the end (delta: 39.8MB). Free memory was 47.3MB in the beginning and 115.5MB in the end (delta: -68.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-11-24 22:18:50,605 INFO L158 Benchmark]: CodeCheck took 832.39ms. Allocated memory is still 155.2MB. Free memory was 115.5MB in the beginning and 80.6MB in the end (delta: 34.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-24 22:18:50,606 INFO L158 Benchmark]: Witness Printer took 111.85ms. Allocated memory is still 155.2MB. Free memory was 80.6MB in the beginning and 75.7MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:18:50,608 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, 26 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, 67 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 28 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 187 GetRequests, 179 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, 0.4s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 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: 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 - PositiveResult [Line: 1578]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1578]: 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: 1557]: Loop Invariant Derived loop invariant: ((data + 2147483648) <= 0) - InvariantResult [Line: 1548]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1591]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1303.14ms. Allocated memory is still 115.3MB. Free memory was 67.8MB in the beginning and 51.5MB in the end (delta: 16.3MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.34ms. Allocated memory is still 115.3MB. Free memory was 51.5MB in the beginning and 48.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.98ms. Allocated memory is still 115.3MB. Free memory was 48.7MB in the beginning and 47.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 419.55ms. Allocated memory was 115.3MB in the beginning and 155.2MB in the end (delta: 39.8MB). Free memory was 47.3MB in the beginning and 115.5MB in the end (delta: -68.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * CodeCheck took 832.39ms. Allocated memory is still 155.2MB. Free memory was 115.5MB in the beginning and 80.6MB in the end (delta: 34.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 111.85ms. Allocated memory is still 155.2MB. Free memory was 80.6MB in the beginning and 75.7MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 22:18:50,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e8609e-f6b6-445c-9716-55ee16c36dd4/bin/ukojak-verify-afCqCEvfdi/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