./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_02_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fae20b-4169-4984-956c-9b60f240f112/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fae20b-4169-4984-956c-9b60f240f112/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fae20b-4169-4984-956c-9b60f240f112/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fae20b-4169-4984-956c-9b60f240f112/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_02_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fae20b-4169-4984-956c-9b60f240f112/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fae20b-4169-4984-956c-9b60f240f112/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d07dd83538be8085e2037852eac6ac523cc1af99bd949fb58c5ddf92ee5f042b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:11:04,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:11:04,608 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fae20b-4169-4984-956c-9b60f240f112/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 03:11:04,612 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:11:04,613 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:11:04,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:11:04,634 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:11:04,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:11:04,636 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:11:04,636 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:11:04,637 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:11:04,637 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:11:04,638 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:11:04,638 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:11:04,639 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:11:04,639 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:11:04,640 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:11:04,640 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 03:11:04,641 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 03:11:04,641 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:11:04,642 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:11:04,643 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:11:04,644 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:11:04,644 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:11:04,645 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:11:04,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:11:04,646 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:11:04,646 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:11:04,647 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:11:04,647 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:11:04,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:11:04,648 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:11:04,648 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_24fae20b-4169-4984-956c-9b60f240f112/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fae20b-4169-4984-956c-9b60f240f112/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d07dd83538be8085e2037852eac6ac523cc1af99bd949fb58c5ddf92ee5f042b [2023-12-03 03:11:04,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:11:04,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:11:04,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:11:04,870 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:11:04,871 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:11:04,872 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fae20b-4169-4984-956c-9b60f240f112/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_02_good.i [2023-12-03 03:11:07,681 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:11:07,959 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:11:07,960 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fae20b-4169-4984-956c-9b60f240f112/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_02_good.i [2023-12-03 03:11:07,982 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fae20b-4169-4984-956c-9b60f240f112/bin/ukojak-verify-Qdu7aM0XO9/data/6508c9598/e55865523d9b4b0b90f7998d55b341e6/FLAG476462d3c [2023-12-03 03:11:07,995 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fae20b-4169-4984-956c-9b60f240f112/bin/ukojak-verify-Qdu7aM0XO9/data/6508c9598/e55865523d9b4b0b90f7998d55b341e6 [2023-12-03 03:11:07,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:11:07,998 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:11:07,999 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:11:08,000 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:11:08,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:11:08,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:11:07" (1/1) ... [2023-12-03 03:11:08,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@750a0f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:11:08, skipping insertion in model container [2023-12-03 03:11:08,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:11:07" (1/1) ... [2023-12-03 03:11:08,058 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:11:08,791 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:11:08,801 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:11:08,883 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:11:09,017 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:11:09,018 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:11:09,018 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:11:09,018 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:11:09,025 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:11:09,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:11:09 WrapperNode [2023-12-03 03:11:09,025 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:11:09,026 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:11:09,026 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:11:09,027 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:11:09,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:11:09" (1/1) ... [2023-12-03 03:11:09,067 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:11:09" (1/1) ... [2023-12-03 03:11:09,099 INFO L138 Inliner]: procedures = 502, calls = 70, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 191 [2023-12-03 03:11:09,100 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:11:09,101 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:11:09,101 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:11:09,101 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:11:09,111 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:11:09" (1/1) ... [2023-12-03 03:11:09,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:11:09" (1/1) ... [2023-12-03 03:11:09,117 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:11:09" (1/1) ... [2023-12-03 03:11:09,117 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:11:09" (1/1) ... [2023-12-03 03:11:09,125 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:11:09" (1/1) ... [2023-12-03 03:11:09,129 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:11:09" (1/1) ... [2023-12-03 03:11:09,131 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:11:09" (1/1) ... [2023-12-03 03:11:09,134 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:11:09" (1/1) ... [2023-12-03 03:11:09,138 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:11:09,139 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:11:09,139 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:11:09,140 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:11:09,140 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:11:09" (1/1) ... [2023-12-03 03:11:09,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:11:09,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fae20b-4169-4984-956c-9b60f240f112/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:11:09,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fae20b-4169-4984-956c-9b60f240f112/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:11:09,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fae20b-4169-4984-956c-9b60f240f112/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:11:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-12-03 03:11:09,216 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-12-03 03:11:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 03:11:09,216 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 03:11:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:11:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:11:09,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:11:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 03:11:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:11:09,373 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:11:09,375 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:11:09,661 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:11:09,986 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:11:09,986 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-03 03:11:09,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:11:09 BoogieIcfgContainer [2023-12-03 03:11:09,988 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:11:09,989 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:11:09,989 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:11:10,000 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:11:10,000 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:11:09" (1/1) ... [2023-12-03 03:11:10,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:11:10,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:11:10,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 50 states and 64 transitions. [2023-12-03 03:11:10,064 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 64 transitions. [2023-12-03 03:11:10,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 03:11:10,069 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:11:10,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:11:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:11:10,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:11:10,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:11:10,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 47 states and 59 transitions. [2023-12-03 03:11:10,373 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 59 transitions. [2023-12-03 03:11:10,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 03:11:10,374 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:11:10,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:11:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:11:10,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:11:10,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:11:10,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 46 states and 58 transitions. [2023-12-03 03:11:10,592 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2023-12-03 03:11:10,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 03:11:10,593 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:11:10,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:11:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:11:10,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 03:11:10,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:11:10,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 45 states and 56 transitions. [2023-12-03 03:11:10,706 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2023-12-03 03:11:10,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 03:11:10,707 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:11:10,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:11:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:11:10,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 03:11:10,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:11:10,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 44 states and 55 transitions. [2023-12-03 03:11:10,945 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2023-12-03 03:11:10,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 03:11:10,946 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:11:10,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:11:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:11:11,041 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 03:11:11,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:11:11,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 41 states and 49 transitions. [2023-12-03 03:11:11,068 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2023-12-03 03:11:11,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-03 03:11:11,069 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:11:11,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:11:11,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:11:11,169 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 03:11:11,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:11:11,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 40 states and 48 transitions. [2023-12-03 03:11:11,242 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2023-12-03 03:11:11,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 03:11:11,244 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:11:11,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:11:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:11:11,335 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 03:11:11,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:11:11,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 39 states and 46 transitions. [2023-12-03 03:11:11,368 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2023-12-03 03:11:11,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-03 03:11:11,369 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:11:11,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:11:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:11:11,462 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 03:11:11,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:11:11,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 38 states and 45 transitions. [2023-12-03 03:11:11,539 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2023-12-03 03:11:11,540 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 03:11:11,541 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-12-03 03:11:11,550 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-12-03 03:11:11,596 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 03:11:11,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:11:11 ImpRootNode [2023-12-03 03:11:11,601 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:11:11,601 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:11:11,601 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:11:11,601 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:11:11,602 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:11:09" (3/4) ... [2023-12-03 03:11:11,604 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 03:11:11,607 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-12-03 03:11:11,607 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-12-03 03:11:11,614 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 57 nodes and edges [2023-12-03 03:11:11,615 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-12-03 03:11:11,615 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-03 03:11:11,616 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 03:11:11,736 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fae20b-4169-4984-956c-9b60f240f112/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 03:11:11,737 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fae20b-4169-4984-956c-9b60f240f112/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 03:11:11,737 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:11:11,738 INFO L158 Benchmark]: Toolchain (without parser) took 3739.47ms. Allocated memory was 157.3MB in the beginning and 205.5MB in the end (delta: 48.2MB). Free memory was 111.0MB in the beginning and 60.9MB in the end (delta: 50.1MB). Peak memory consumption was 99.2MB. Max. memory is 16.1GB. [2023-12-03 03:11:11,738 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:11:11,738 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1026.22ms. Allocated memory was 157.3MB in the beginning and 205.5MB in the end (delta: 48.2MB). Free memory was 111.0MB in the beginning and 151.8MB in the end (delta: -40.8MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. [2023-12-03 03:11:11,739 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.86ms. Allocated memory is still 205.5MB. Free memory was 151.8MB in the beginning and 147.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 03:11:11,739 INFO L158 Benchmark]: Boogie Preprocessor took 37.68ms. Allocated memory is still 205.5MB. Free memory was 147.6MB in the beginning and 146.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:11:11,740 INFO L158 Benchmark]: RCFGBuilder took 849.22ms. Allocated memory is still 205.5MB. Free memory was 146.5MB in the beginning and 148.0MB in the end (delta: -1.5MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2023-12-03 03:11:11,740 INFO L158 Benchmark]: CodeCheck took 1611.57ms. Allocated memory is still 205.5MB. Free memory was 148.0MB in the beginning and 68.2MB in the end (delta: 79.7MB). Peak memory consumption was 80.8MB. Max. memory is 16.1GB. [2023-12-03 03:11:11,740 INFO L158 Benchmark]: Witness Printer took 135.79ms. Allocated memory is still 205.5MB. Free memory was 68.2MB in the beginning and 60.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-03 03:11:11,742 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, 50 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 448 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 226 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 198 mSDtfsCounter, 292 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 954 GetRequests, 930 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 28/28 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1585]: 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 - PositiveResult [Line: 1625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1642]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1026.22ms. Allocated memory was 157.3MB in the beginning and 205.5MB in the end (delta: 48.2MB). Free memory was 111.0MB in the beginning and 151.8MB in the end (delta: -40.8MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.86ms. Allocated memory is still 205.5MB. Free memory was 151.8MB in the beginning and 147.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.68ms. Allocated memory is still 205.5MB. Free memory was 147.6MB in the beginning and 146.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 849.22ms. Allocated memory is still 205.5MB. Free memory was 146.5MB in the beginning and 148.0MB in the end (delta: -1.5MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. * CodeCheck took 1611.57ms. Allocated memory is still 205.5MB. Free memory was 148.0MB in the beginning and 68.2MB in the end (delta: 79.7MB). Peak memory consumption was 80.8MB. Max. memory is 16.1GB. * Witness Printer took 135.79ms. Allocated memory is still 205.5MB. Free memory was 68.2MB in the beginning and 60.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 03:11:11,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fae20b-4169-4984-956c-9b60f240f112/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE