./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_13_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_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/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_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_13_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/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_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/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 8a6081f2ce5929415bad141b3093b29097753bcd4261d75e9ea5a053b520e3ef --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:00:25,265 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:00:25,381 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 23:00:25,385 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:00:25,392 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:00:25,430 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:00:25,432 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:00:25,433 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:00:25,434 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:00:25,438 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:00:25,440 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:00:25,440 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:00:25,441 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:00:25,442 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:00:25,443 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:00:25,443 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:00:25,443 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:00:25,444 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:00:25,444 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:00:25,444 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:00:25,445 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:00:25,446 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:00:25,446 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:00:25,447 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:00:25,447 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:00:25,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:00:25,448 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:00:25,449 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:00:25,449 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:00:25,450 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:00:25,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:00:25,451 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:00:25,451 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_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a6081f2ce5929415bad141b3093b29097753bcd4261d75e9ea5a053b520e3ef [2023-11-24 23:00:25,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:00:25,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:00:25,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:00:25,773 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:00:25,774 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:00:25,775 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_13_good.i [2023-11-24 23:00:29,004 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:00:29,504 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:00:29,508 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_13_good.i [2023-11-24 23:00:29,546 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/bin/ukojak-verify-afCqCEvfdi/data/6f4be0c33/e2e9978c0f534dadb74ac28fd71aea5e/FLAG2c32d91b1 [2023-11-24 23:00:29,566 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/bin/ukojak-verify-afCqCEvfdi/data/6f4be0c33/e2e9978c0f534dadb74ac28fd71aea5e [2023-11-24 23:00:29,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:00:29,573 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:00:29,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:00:29,577 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:00:29,582 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:00:29,582 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:00:29" (1/1) ... [2023-11-24 23:00:29,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57130738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:29, skipping insertion in model container [2023-11-24 23:00:29,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:00:29" (1/1) ... [2023-11-24 23:00:29,671 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:00:30,778 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:00:30,792 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:00:30,934 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:00:31,149 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:00:31,149 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:00:31,150 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:00:31,150 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:00:31,158 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:00:31,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:31 WrapperNode [2023-11-24 23:00:31,159 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:00:31,160 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:00:31,160 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:00:31,161 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:00:31,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:31" (1/1) ... [2023-11-24 23:00:31,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:31" (1/1) ... [2023-11-24 23:00:31,235 INFO L138 Inliner]: procedures = 502, calls = 70, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 103 [2023-11-24 23:00:31,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:00:31,236 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:00:31,236 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:00:31,237 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:00:31,246 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:31" (1/1) ... [2023-11-24 23:00:31,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:31" (1/1) ... [2023-11-24 23:00:31,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:31" (1/1) ... [2023-11-24 23:00:31,251 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:31" (1/1) ... [2023-11-24 23:00:31,258 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:31" (1/1) ... [2023-11-24 23:00:31,260 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:31" (1/1) ... [2023-11-24 23:00:31,263 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:31" (1/1) ... [2023-11-24 23:00:31,265 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:31" (1/1) ... [2023-11-24 23:00:31,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:00:31,269 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:00:31,269 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:00:31,269 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:00:31,270 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:31" (1/1) ... [2023-11-24 23:00:31,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:00:31,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:00:31,306 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:00:31,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:00:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-24 23:00:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-24 23:00:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:00:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:00:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:00:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:00:31,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:00:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:00:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:00:31,547 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:00:31,551 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:00:31,791 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:00:31,866 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:00:31,867 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:00:31,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:31 BoogieIcfgContainer [2023-11-24 23:00:31,869 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:00:31,870 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:00:31,870 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:00:31,881 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:00:31,882 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:31" (1/1) ... [2023-11-24 23:00:31,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:00:31,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:31,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 53 states and 67 transitions. [2023-11-24 23:00:31,967 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2023-11-24 23:00:31,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:00:31,972 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:31,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:00:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:32,309 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 23:00:32,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:32,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 52 states and 66 transitions. [2023-11-24 23:00:32,377 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2023-11-24 23:00:32,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 23:00:32,379 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:32,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:00:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:32,517 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 23:00:32,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:32,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 47 states and 59 transitions. [2023-11-24 23:00:32,554 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 59 transitions. [2023-11-24 23:00:32,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:00:32,555 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:32,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:00:32,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:32,615 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 23:00:32,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:32,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 45 states and 55 transitions. [2023-11-24 23:00:32,692 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2023-11-24 23:00:32,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 23:00:32,693 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:32,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:00:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:32,782 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 23:00:32,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:32,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 44 states and 54 transitions. [2023-11-24 23:00:32,811 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2023-11-24 23:00:32,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 23:00:32,825 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:32,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:00:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:32,936 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 23:00:32,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:32,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 39 states and 47 transitions. [2023-11-24 23:00:32,985 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2023-11-24 23:00:32,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-24 23:00:32,987 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:32,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:00:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:33,060 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 23:00:33,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:33,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 39 states and 46 transitions. [2023-11-24 23:00:33,182 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2023-11-24 23:00:33,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-24 23:00:33,183 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:33,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:00:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:33,240 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:00:33,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:33,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 41 states and 50 transitions. [2023-11-24 23:00:33,272 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2023-11-24 23:00:33,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 23:00:33,273 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:33,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:00:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:33,332 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:00:33,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:33,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 44 states and 55 transitions. [2023-11-24 23:00:33,413 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2023-11-24 23:00:33,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-24 23:00:33,414 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:33,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:00:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:33,453 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:00:33,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:33,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 35 states and 39 transitions. [2023-11-24 23:00:33,588 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2023-11-24 23:00:33,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-24 23:00:33,589 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:33,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:00:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:00:33,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:33,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 34 states and 38 transitions. [2023-11-24 23:00:33,861 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2023-11-24 23:00:33,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-24 23:00:33,865 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:33,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:00:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:33,980 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:00:34,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:34,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 33 states and 37 transitions. [2023-11-24 23:00:34,082 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2023-11-24 23:00:34,084 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:00:34,084 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2023-11-24 23:00:34,094 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-11-24 23:00:34,206 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:00:34,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:00:34 ImpRootNode [2023-11-24 23:00:34,211 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:00:34,212 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:00:34,212 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:00:34,214 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:00:34,214 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:31" (3/4) ... [2023-11-24 23:00:34,216 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:00:34,220 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-24 23:00:34,220 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-24 23:00:34,228 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2023-11-24 23:00:34,228 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-24 23:00:34,229 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-24 23:00:34,229 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:00:34,357 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 23:00:34,358 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 23:00:34,358 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:00:34,359 INFO L158 Benchmark]: Toolchain (without parser) took 4785.85ms. Allocated memory was 169.9MB in the beginning and 226.5MB in the end (delta: 56.6MB). Free memory was 117.5MB in the beginning and 71.4MB in the end (delta: 46.1MB). Peak memory consumption was 104.0MB. Max. memory is 16.1GB. [2023-11-24 23:00:34,359 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 169.9MB. Free memory was 132.8MB in the beginning and 132.8MB in the end (delta: 16.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:00:34,360 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1583.07ms. Allocated memory was 169.9MB in the beginning and 226.5MB in the end (delta: 56.6MB). Free memory was 117.3MB in the beginning and 167.2MB in the end (delta: -49.9MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2023-11-24 23:00:34,360 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.40ms. Allocated memory is still 226.5MB. Free memory was 167.2MB in the beginning and 164.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:00:34,361 INFO L158 Benchmark]: Boogie Preprocessor took 32.14ms. Allocated memory is still 226.5MB. Free memory was 164.0MB in the beginning and 161.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:00:34,361 INFO L158 Benchmark]: RCFGBuilder took 600.13ms. Allocated memory is still 226.5MB. Free memory was 161.9MB in the beginning and 144.1MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 23:00:34,362 INFO L158 Benchmark]: CodeCheck took 2341.43ms. Allocated memory is still 226.5MB. Free memory was 143.1MB in the beginning and 76.7MB in the end (delta: 66.4MB). Peak memory consumption was 65.3MB. Max. memory is 16.1GB. [2023-11-24 23:00:34,362 INFO L158 Benchmark]: Witness Printer took 146.23ms. Allocated memory is still 226.5MB. Free memory was 76.7MB in the beginning and 71.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-24 23:00:34,364 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, 53 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 938 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 183 mSDsluCounter, 758 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 156 mSDsCounter, 194 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 488 IncrementalHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 194 mSolverCounterUnsat, 602 mSDtfsCounter, 488 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1576 GetRequests, 1542 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 209 NumberOfCodeBlocks, 209 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 406 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 38/38 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: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1611]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1611]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1628]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1628]: 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: 1646]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 169.9MB. Free memory was 132.8MB in the beginning and 132.8MB in the end (delta: 16.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1583.07ms. Allocated memory was 169.9MB in the beginning and 226.5MB in the end (delta: 56.6MB). Free memory was 117.3MB in the beginning and 167.2MB in the end (delta: -49.9MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.40ms. Allocated memory is still 226.5MB. Free memory was 167.2MB in the beginning and 164.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.14ms. Allocated memory is still 226.5MB. Free memory was 164.0MB in the beginning and 161.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 600.13ms. Allocated memory is still 226.5MB. Free memory was 161.9MB in the beginning and 144.1MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 2341.43ms. Allocated memory is still 226.5MB. Free memory was 143.1MB in the beginning and 76.7MB in the end (delta: 66.4MB). Peak memory consumption was 65.3MB. Max. memory is 16.1GB. * Witness Printer took 146.23ms. Allocated memory is still 226.5MB. Free memory was 76.7MB in the beginning and 71.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 23:00:34,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f8e4fb-b576-4793-9ec5-c05db485c8f0/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE