./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_07_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_bfd7851c-51b6-4848-a378-e131a93c8062/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd7851c-51b6-4848-a378-e131a93c8062/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_bfd7851c-51b6-4848-a378-e131a93c8062/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd7851c-51b6-4848-a378-e131a93c8062/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_07_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd7851c-51b6-4848-a378-e131a93c8062/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_bfd7851c-51b6-4848-a378-e131a93c8062/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 8a76a470609d71737fc5c88cc2b5510cb8c165c4ddb4681d6c11879344e9cb01 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:51:24,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:51:24,657 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd7851c-51b6-4848-a378-e131a93c8062/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 22:51:24,662 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:51:24,663 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:51:24,687 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:51:24,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:51:24,688 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:51:24,689 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:51:24,689 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:51:24,690 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:51:24,691 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:51:24,691 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:51:24,692 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:51:24,692 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:51:24,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:51:24,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:51:24,694 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:51:24,694 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:51:24,694 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:51:24,695 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:51:24,701 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:51:24,702 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:51:24,702 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:51:24,703 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:51:24,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:51:24,703 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:51:24,704 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:51:24,704 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:51:24,705 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:51:24,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:51:24,706 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:51:24,706 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_bfd7851c-51b6-4848-a378-e131a93c8062/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd7851c-51b6-4848-a378-e131a93c8062/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a76a470609d71737fc5c88cc2b5510cb8c165c4ddb4681d6c11879344e9cb01 [2023-11-24 22:51:25,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:51:25,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:51:25,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:51:25,037 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:51:25,038 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:51:25,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd7851c-51b6-4848-a378-e131a93c8062/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_07_good.i [2023-11-24 22:51:28,076 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:51:28,580 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:51:28,596 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd7851c-51b6-4848-a378-e131a93c8062/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_07_good.i [2023-11-24 22:51:28,642 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd7851c-51b6-4848-a378-e131a93c8062/bin/ukojak-verify-afCqCEvfdi/data/0f7de6052/69cf740e2f814a7a8dffc7a77baae6c6/FLAG8d1ca35ef [2023-11-24 22:51:28,665 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd7851c-51b6-4848-a378-e131a93c8062/bin/ukojak-verify-afCqCEvfdi/data/0f7de6052/69cf740e2f814a7a8dffc7a77baae6c6 [2023-11-24 22:51:28,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:51:28,674 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:51:28,676 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:51:28,676 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:51:28,681 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:51:28,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:51:28" (1/1) ... [2023-11-24 22:51:28,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f465fd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:28, skipping insertion in model container [2023-11-24 22:51:28,687 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:51:28" (1/1) ... [2023-11-24 22:51:28,819 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:51:30,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:51:30,057 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:51:30,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:51:30,419 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:51:30,420 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:51:30,427 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:51:30,427 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:51:30,463 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:51:30,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30 WrapperNode [2023-11-24 22:51:30,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:51:30,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:51:30,466 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:51:30,466 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:51:30,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,508 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,549 INFO L138 Inliner]: procedures = 502, calls = 70, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 204 [2023-11-24 22:51:30,549 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:51:30,550 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:51:30,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:51:30,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:51:30,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,569 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,580 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,597 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:51:30,598 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:51:30,598 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:51:30,598 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:51:30,599 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:51:30,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd7851c-51b6-4848-a378-e131a93c8062/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:51:30,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd7851c-51b6-4848-a378-e131a93c8062/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:51:30,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd7851c-51b6-4848-a378-e131a93c8062/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:51:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-24 22:51:30,702 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-24 22:51:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 22:51:30,703 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 22:51:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:51:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:51:30,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:51:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 22:51:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:51:30,933 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:51:30,936 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:51:31,403 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:51:31,883 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:51:31,883 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:51:31,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:31 BoogieIcfgContainer [2023-11-24 22:51:31,886 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:51:31,888 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:51:31,888 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:51:31,901 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:51:31,901 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:51:31,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:32,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 53 states and 67 transitions. [2023-11-24 22:51:32,009 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2023-11-24 22:51:32,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 22:51:32,014 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:32,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:32,421 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 22:51:32,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:32,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 52 states and 66 transitions. [2023-11-24 22:51:32,492 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2023-11-24 22:51:32,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 22:51:32,494 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:32,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:32,923 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 22:51:33,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:33,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 51 states and 65 transitions. [2023-11-24 22:51:33,092 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2023-11-24 22:51:33,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 22:51:33,093 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:33,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:33,228 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 22:51:33,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:33,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 49 states and 61 transitions. [2023-11-24 22:51:33,325 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2023-11-24 22:51:33,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 22:51:33,326 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:33,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:33,525 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 22:51:33,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:33,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 48 states and 60 transitions. [2023-11-24 22:51:33,575 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 60 transitions. [2023-11-24 22:51:33,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 22:51:33,577 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:33,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:33,998 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 22:51:34,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:34,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 48 states and 61 transitions. [2023-11-24 22:51:34,176 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2023-11-24 22:51:34,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-24 22:51:34,177 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:34,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:34,318 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 22:51:34,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:34,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 49 states and 61 transitions. [2023-11-24 22:51:34,437 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2023-11-24 22:51:34,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 22:51:34,440 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:34,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:34,577 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 22:51:34,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:34,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 47 states and 58 transitions. [2023-11-24 22:51:34,736 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 58 transitions. [2023-11-24 22:51:34,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-24 22:51:34,740 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:34,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:34,941 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 22:51:34,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:34,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 49 states and 62 transitions. [2023-11-24 22:51:34,995 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 62 transitions. [2023-11-24 22:51:35,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 22:51:35,001 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:35,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:35,157 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 22:51:35,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:35,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 52 states and 67 transitions. [2023-11-24 22:51:35,296 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2023-11-24 22:51:35,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-24 22:51:35,298 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:35,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:35,404 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 22:51:35,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:35,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 55 states and 70 transitions. [2023-11-24 22:51:35,622 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2023-11-24 22:51:35,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 22:51:35,624 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:35,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:35,726 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 22:51:35,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:35,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 43 states and 51 transitions. [2023-11-24 22:51:35,910 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2023-11-24 22:51:35,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-24 22:51:35,916 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:35,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:36,141 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 22:51:36,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:36,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 42 states and 50 transitions. [2023-11-24 22:51:36,371 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2023-11-24 22:51:36,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-24 22:51:36,373 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:36,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:36,571 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 22:51:36,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:36,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 41 states and 49 transitions. [2023-11-24 22:51:36,722 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2023-11-24 22:51:36,723 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:51:36,723 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 14 iterations. [2023-11-24 22:51:36,734 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-11-24 22:51:36,885 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:51:36,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:51:36 ImpRootNode [2023-11-24 22:51:36,890 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:51:36,891 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:51:36,891 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:51:36,892 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:51:36,892 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:31" (3/4) ... [2023-11-24 22:51:36,894 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:51:36,899 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-24 22:51:36,899 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-24 22:51:36,947 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 56 nodes and edges [2023-11-24 22:51:36,949 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-24 22:51:36,950 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-24 22:51:36,951 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:51:37,149 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd7851c-51b6-4848-a378-e131a93c8062/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:51:37,150 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd7851c-51b6-4848-a378-e131a93c8062/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 22:51:37,150 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:51:37,151 INFO L158 Benchmark]: Toolchain (without parser) took 8477.02ms. Allocated memory was 167.8MB in the beginning and 209.7MB in the end (delta: 41.9MB). Free memory was 133.9MB in the beginning and 167.7MB in the end (delta: -33.8MB). Peak memory consumption was 124.1MB. Max. memory is 16.1GB. [2023-11-24 22:51:37,151 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 130.0MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:51:37,152 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1789.66ms. Allocated memory is still 167.8MB. Free memory was 133.5MB in the beginning and 132.3MB in the end (delta: 1.1MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2023-11-24 22:51:37,152 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.70ms. Allocated memory is still 167.8MB. Free memory was 132.3MB in the beginning and 128.7MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:51:37,153 INFO L158 Benchmark]: Boogie Preprocessor took 46.71ms. Allocated memory is still 167.8MB. Free memory was 128.7MB in the beginning and 126.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:51:37,153 INFO L158 Benchmark]: RCFGBuilder took 1288.18ms. Allocated memory is still 167.8MB. Free memory was 126.6MB in the beginning and 122.0MB in the end (delta: 4.6MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. [2023-11-24 22:51:37,154 INFO L158 Benchmark]: CodeCheck took 5002.77ms. Allocated memory was 167.8MB in the beginning and 209.7MB in the end (delta: 41.9MB). Free memory was 122.0MB in the beginning and 54.8MB in the end (delta: 67.3MB). Peak memory consumption was 109.2MB. Max. memory is 16.1GB. [2023-11-24 22:51:37,154 INFO L158 Benchmark]: Witness Printer took 259.17ms. Allocated memory is still 209.7MB. Free memory was 54.8MB in the beginning and 167.7MB in the end (delta: -112.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:51:37,158 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: 4.8s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1349 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 387 mSDsluCounter, 977 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 214 mSDsCounter, 258 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 992 IncrementalHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 258 mSolverCounterUnsat, 763 mSDtfsCounter, 992 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2046 GetRequests, 1996 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 778 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 501 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 44/44 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: 1565]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1565]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1587]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1587]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1612]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1612]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1629]: 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: 1647]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 130.0MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1789.66ms. Allocated memory is still 167.8MB. Free memory was 133.5MB in the beginning and 132.3MB in the end (delta: 1.1MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.70ms. Allocated memory is still 167.8MB. Free memory was 132.3MB in the beginning and 128.7MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.71ms. Allocated memory is still 167.8MB. Free memory was 128.7MB in the beginning and 126.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1288.18ms. Allocated memory is still 167.8MB. Free memory was 126.6MB in the beginning and 122.0MB in the end (delta: 4.6MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. * CodeCheck took 5002.77ms. Allocated memory was 167.8MB in the beginning and 209.7MB in the end (delta: 41.9MB). Free memory was 122.0MB in the beginning and 54.8MB in the end (delta: 67.3MB). Peak memory consumption was 109.2MB. Max. memory is 16.1GB. * Witness Printer took 259.17ms. Allocated memory is still 209.7MB. Free memory was 54.8MB in the beginning and 167.7MB in the end (delta: -112.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 22:51:37,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd7851c-51b6-4848-a378-e131a93c8062/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