./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/GCD4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_3963564e-6635-42fc-a7b8-1da6c5016e3e/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963564e-6635-42fc-a7b8-1da6c5016e3e/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963564e-6635-42fc-a7b8-1da6c5016e3e/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963564e-6635-42fc-a7b8-1da6c5016e3e/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/GCD4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963564e-6635-42fc-a7b8-1da6c5016e3e/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963564e-6635-42fc-a7b8-1da6c5016e3e/bin/ukojak-verify-1t5iHCbJaC --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 f256d3c992d0432c53ebd28135ea0740504754f166830088ee9ee3a40836ca36 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:11:44,044 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:11:44,152 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963564e-6635-42fc-a7b8-1da6c5016e3e/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:11:44,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:11:44,159 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:11:44,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:11:44,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:11:44,208 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:11:44,209 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:11:44,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:11:44,217 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:11:44,217 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:11:44,218 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:11:44,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:11:44,220 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:11:44,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:11:44,221 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:11:44,221 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:11:44,222 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:11:44,222 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:11:44,223 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:11:44,224 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:11:44,224 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:11:44,225 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:11:44,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:11:44,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:11:44,226 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:11:44,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:11:44,227 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:11:44,227 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:11:44,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:11:44,229 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:11:44,229 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_3963564e-6635-42fc-a7b8-1da6c5016e3e/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963564e-6635-42fc-a7b8-1da6c5016e3e/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f256d3c992d0432c53ebd28135ea0740504754f166830088ee9ee3a40836ca36 [2023-11-23 20:11:44,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:11:44,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:11:44,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:11:44,556 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:11:44,557 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:11:44,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963564e-6635-42fc-a7b8-1da6c5016e3e/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/termination-restricted-15/GCD4.c [2023-11-23 20:11:47,875 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:11:48,173 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:11:48,174 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963564e-6635-42fc-a7b8-1da6c5016e3e/sv-benchmarks/c/termination-restricted-15/GCD4.c [2023-11-23 20:11:48,182 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963564e-6635-42fc-a7b8-1da6c5016e3e/bin/ukojak-verify-1t5iHCbJaC/data/48829df3e/48885a144b3a47fa990773e25ea831eb/FLAGef6390203 [2023-11-23 20:11:48,199 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963564e-6635-42fc-a7b8-1da6c5016e3e/bin/ukojak-verify-1t5iHCbJaC/data/48829df3e/48885a144b3a47fa990773e25ea831eb [2023-11-23 20:11:48,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:11:48,203 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:11:48,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:11:48,205 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:11:48,211 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:11:48,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:11:48" (1/1) ... [2023-11-23 20:11:48,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@302214da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:48, skipping insertion in model container [2023-11-23 20:11:48,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:11:48" (1/1) ... [2023-11-23 20:11:48,236 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:11:48,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:11:48,408 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:11:48,424 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:11:48,440 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:11:48,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:48 WrapperNode [2023-11-23 20:11:48,441 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:11:48,442 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:11:48,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:11:48,443 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:11:48,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:48" (1/1) ... [2023-11-23 20:11:48,456 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:48" (1/1) ... [2023-11-23 20:11:48,476 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2023-11-23 20:11:48,476 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:11:48,477 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:11:48,478 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:11:48,478 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:11:48,488 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:48" (1/1) ... [2023-11-23 20:11:48,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:48" (1/1) ... [2023-11-23 20:11:48,490 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:48" (1/1) ... [2023-11-23 20:11:48,490 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:48" (1/1) ... [2023-11-23 20:11:48,493 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:48" (1/1) ... [2023-11-23 20:11:48,497 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:48" (1/1) ... [2023-11-23 20:11:48,503 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:48" (1/1) ... [2023-11-23 20:11:48,503 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:48" (1/1) ... [2023-11-23 20:11:48,505 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:11:48,507 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:11:48,507 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:11:48,507 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:11:48,509 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:48" (1/1) ... [2023-11-23 20:11:48,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:11:48,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963564e-6635-42fc-a7b8-1da6c5016e3e/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:11:48,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963564e-6635-42fc-a7b8-1da6c5016e3e/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:11:48,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963564e-6635-42fc-a7b8-1da6c5016e3e/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:11:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:11:48,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:11:48,699 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:11:48,702 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:11:48,843 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:11:48,878 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:11:48,878 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:11:48,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:11:48 BoogieIcfgContainer [2023-11-23 20:11:48,881 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:11:48,882 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:11:48,882 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:11:48,894 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:11:48,894 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:11:48" (1/1) ... [2023-11-23 20:11:48,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:11:48,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:11:48,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-11-23 20:11:48,994 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-11-23 20:11:48,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 20:11:48,998 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:11:48,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:11:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:11:49,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:11:49,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:11:49,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-23 20:11:49,282 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-23 20:11:49,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 20:11:49,282 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:11:49,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:11:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:11:49,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:11:49,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:11:49,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 11 states and 19 transitions. [2023-11-23 20:11:49,540 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 19 transitions. [2023-11-23 20:11:49,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 20:11:49,541 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:11:49,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:11:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:11:49,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:11:50,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:11:50,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 13 states and 27 transitions. [2023-11-23 20:11:50,001 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 27 transitions. [2023-11-23 20:11:50,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:11:50,004 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:11:50,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:11:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:11:50,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:11:50,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:11:50,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 14 states and 28 transitions. [2023-11-23 20:11:50,751 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 28 transitions. [2023-11-23 20:11:50,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:11:50,753 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:11:50,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:11:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:11:50,947 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:11:51,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:11:51,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 16 states and 36 transitions. [2023-11-23 20:11:51,422 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 36 transitions. [2023-11-23 20:11:51,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 20:11:51,423 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:11:51,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:11:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:11:51,622 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:11:52,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:11:52,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-11-23 20:11:52,870 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-11-23 20:11:52,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 20:11:52,871 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:11:52,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:11:52,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:11:52,954 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:11:53,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:11:53,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-11-23 20:11:53,486 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-11-23 20:11:53,487 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:11:53,487 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2023-11-23 20:11:53,496 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-23 20:11:53,543 INFO L560 CodeCheckObserver]: Invariant with dag size 19 [2023-11-23 20:11:53,552 INFO L560 CodeCheckObserver]: Invariant with dag size 11 [2023-11-23 20:11:53,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:11:53 ImpRootNode [2023-11-23 20:11:53,554 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:11:53,555 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:11:53,555 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:11:53,555 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:11:53,556 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:11:48" (3/4) ... [2023-11-23 20:11:53,558 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:11:53,568 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-23 20:11:53,570 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-23 20:11:53,570 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-23 20:11:53,679 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963564e-6635-42fc-a7b8-1da6c5016e3e/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:11:53,680 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963564e-6635-42fc-a7b8-1da6c5016e3e/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:11:53,680 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:11:53,681 INFO L158 Benchmark]: Toolchain (without parser) took 5477.41ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 131.4MB in the beginning and 95.3MB in the end (delta: 36.0MB). Peak memory consumption was 81.2MB. Max. memory is 16.1GB. [2023-11-23 20:11:53,681 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 66.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:11:53,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.16ms. Allocated memory is still 163.6MB. Free memory was 130.6MB in the beginning and 121.2MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 20:11:53,682 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.37ms. Allocated memory is still 163.6MB. Free memory was 121.2MB in the beginning and 120.4MB in the end (delta: 826.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:11:53,682 INFO L158 Benchmark]: Boogie Preprocessor took 28.19ms. Allocated memory is still 163.6MB. Free memory was 120.4MB in the beginning and 119.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:11:53,688 INFO L158 Benchmark]: RCFGBuilder took 374.47ms. Allocated memory is still 163.6MB. Free memory was 119.1MB in the beginning and 108.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 20:11:53,689 INFO L158 Benchmark]: CodeCheck took 4672.07ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 108.6MB in the beginning and 99.5MB in the end (delta: 9.1MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. [2023-11-23 20:11:53,689 INFO L158 Benchmark]: Witness Printer took 125.27ms. Allocated memory is still 209.7MB. Free memory was 99.5MB in the beginning and 95.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:11:53,691 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 1 procedures, 8 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 145 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 612 IncrementalHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 145 mSolverCounterUnsat, 21 mSDtfsCounter, 612 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 670 GetRequests, 569 SyntacticMatches, 17 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2387 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 208 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 14/28 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((((1 <= y) && ((xtmp + tmp) <= (2147483647 + y))) && (tmp <= 2147483647)) && (y <= tmp)) || (((xtmp <= (y + 2147483646)) && (2147483647 < tmp)) && ((xtmp + tmp) <= 2147483647))) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: (((2147483647 < x) && ((x + y) <= 2147483647)) || ((x <= 2147483647) && (y <= 2147483647))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 66.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.16ms. Allocated memory is still 163.6MB. Free memory was 130.6MB in the beginning and 121.2MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.37ms. Allocated memory is still 163.6MB. Free memory was 121.2MB in the beginning and 120.4MB in the end (delta: 826.8kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.19ms. Allocated memory is still 163.6MB. Free memory was 120.4MB in the beginning and 119.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 374.47ms. Allocated memory is still 163.6MB. Free memory was 119.1MB in the beginning and 108.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 4672.07ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 108.6MB in the beginning and 99.5MB in the end (delta: 9.1MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. * Witness Printer took 125.27ms. Allocated memory is still 209.7MB. Free memory was 99.5MB in the beginning and 95.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-23 20:11:53,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3963564e-6635-42fc-a7b8-1da6c5016e3e/bin/ukojak-verify-1t5iHCbJaC/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