./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/gcd_3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e0669-e147-4037-b4f3-e351baa89a2b/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e0669-e147-4037-b4f3-e351baa89a2b/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e0669-e147-4037-b4f3-e351baa89a2b/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e0669-e147-4037-b4f3-e351baa89a2b/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e0669-e147-4037-b4f3-e351baa89a2b/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e0669-e147-4037-b4f3-e351baa89a2b/bin/ukojak-verify-G8NBE6pJGL --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 32bit --witnessprinter.graph.data.programhash 17434adceb46f4d2d18d3a85d6d4ed55515fdf3dbd1a573601edbae0be0a7746 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:00:50,429 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:00:50,512 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e0669-e147-4037-b4f3-e351baa89a2b/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-19 04:00:50,517 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:00:50,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:00:50,553 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:00:50,554 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:00:50,555 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:00:50,555 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:00:50,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:00:50,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:00:50,557 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:00:50,558 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:00:50,558 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:00:50,559 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:00:50,559 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:00:50,560 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:00:50,560 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:00:50,561 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:00:50,561 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:00:50,561 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:00:50,568 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:00:50,568 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:00:50,568 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:00:50,569 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:00:50,569 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:00:50,570 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:00:50,570 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:00:50,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:00:50,571 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:00:50,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:00:50,572 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:00:50,572 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:00:50,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:00:50,573 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:00:50,573 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_026e0669-e147-4037-b4f3-e351baa89a2b/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e0669-e147-4037-b4f3-e351baa89a2b/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17434adceb46f4d2d18d3a85d6d4ed55515fdf3dbd1a573601edbae0be0a7746 [2023-11-19 04:00:50,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:00:50,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:00:50,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:00:50,952 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:00:50,952 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:00:50,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e0669-e147-4037-b4f3-e351baa89a2b/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/bitvector/gcd_3.c [2023-11-19 04:00:54,005 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:00:54,267 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:00:54,268 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e0669-e147-4037-b4f3-e351baa89a2b/sv-benchmarks/c/bitvector/gcd_3.c [2023-11-19 04:00:54,283 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e0669-e147-4037-b4f3-e351baa89a2b/bin/ukojak-verify-G8NBE6pJGL/data/b0a83043e/bfccf49b2f7141fd9872de1ba246f099/FLAG9fcdb7dd0 [2023-11-19 04:00:54,312 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e0669-e147-4037-b4f3-e351baa89a2b/bin/ukojak-verify-G8NBE6pJGL/data/b0a83043e/bfccf49b2f7141fd9872de1ba246f099 [2023-11-19 04:00:54,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:00:54,319 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:00:54,320 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:00:54,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:00:54,326 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:00:54,326 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:00:54" (1/1) ... [2023-11-19 04:00:54,328 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e097c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:54, skipping insertion in model container [2023-11-19 04:00:54,328 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:00:54" (1/1) ... [2023-11-19 04:00:54,355 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:00:54,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:00:54,597 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:00:54,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:00:54,646 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:00:54,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:54 WrapperNode [2023-11-19 04:00:54,646 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:00:54,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:00:54,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:00:54,648 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:00:54,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:54" (1/1) ... [2023-11-19 04:00:54,664 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:54" (1/1) ... [2023-11-19 04:00:54,696 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2023-11-19 04:00:54,697 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:00:54,698 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:00:54,698 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:00:54,698 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:00:54,708 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:54" (1/1) ... [2023-11-19 04:00:54,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:54" (1/1) ... [2023-11-19 04:00:54,710 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:54" (1/1) ... [2023-11-19 04:00:54,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:54" (1/1) ... [2023-11-19 04:00:54,714 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:54" (1/1) ... [2023-11-19 04:00:54,718 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:54" (1/1) ... [2023-11-19 04:00:54,719 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:54" (1/1) ... [2023-11-19 04:00:54,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:54" (1/1) ... [2023-11-19 04:00:54,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:00:54,723 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:00:54,723 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:00:54,723 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:00:54,724 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:54" (1/1) ... [2023-11-19 04:00:54,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:00:54,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e0669-e147-4037-b4f3-e351baa89a2b/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:00:54,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e0669-e147-4037-b4f3-e351baa89a2b/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:00:54,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e0669-e147-4037-b4f3-e351baa89a2b/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:00:54,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:00:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:00:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:00:54,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:00:54,903 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:00:54,905 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:00:55,159 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:00:55,215 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:00:55,216 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:00:55,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:55 BoogieIcfgContainer [2023-11-19 04:00:55,220 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:00:55,221 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:00:55,221 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:00:55,228 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:00:55,229 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:55" (1/1) ... [2023-11-19 04:00:55,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:00:55,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:55,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2023-11-19 04:00:55,292 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-11-19 04:00:55,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:00:55,295 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:55,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:55,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:00:55,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:55,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-11-19 04:00:55,506 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-19 04:00:55,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:00:55,507 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:55,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:55,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:00:55,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:55,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2023-11-19 04:00:55,668 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2023-11-19 04:00:55,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:00:55,668 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:55,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:55,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:00:55,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:55,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2023-11-19 04:00:55,800 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2023-11-19 04:00:55,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:00:55,800 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:55,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:55,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:00:56,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:56,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2023-11-19 04:00:56,156 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2023-11-19 04:00:56,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:00:56,157 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:56,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:56,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:00:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:56,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-11-19 04:00:56,419 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-19 04:00:56,420 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:00:56,420 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2023-11-19 04:00:56,431 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-19 04:00:56,464 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 04:00:56,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:00:56 ImpRootNode [2023-11-19 04:00:56,470 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:00:56,470 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:00:56,471 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:00:56,471 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:00:56,472 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:55" (3/4) ... [2023-11-19 04:00:56,474 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:00:56,487 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-19 04:00:56,488 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-19 04:00:56,488 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 04:00:56,488 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 04:00:56,489 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:00:56,604 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e0669-e147-4037-b4f3-e351baa89a2b/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 04:00:56,605 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e0669-e147-4037-b4f3-e351baa89a2b/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 04:00:56,605 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:00:56,607 INFO L158 Benchmark]: Toolchain (without parser) took 2287.19ms. Allocated memory is still 155.2MB. Free memory was 126.3MB in the beginning and 65.0MB in the end (delta: 61.3MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2023-11-19 04:00:56,607 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:56,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.46ms. Allocated memory is still 155.2MB. Free memory was 125.6MB in the beginning and 115.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:00:56,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.34ms. Allocated memory is still 155.2MB. Free memory was 115.6MB in the beginning and 113.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:00:56,609 INFO L158 Benchmark]: Boogie Preprocessor took 24.50ms. Allocated memory is still 155.2MB. Free memory was 113.8MB in the beginning and 112.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:56,610 INFO L158 Benchmark]: RCFGBuilder took 496.88ms. Allocated memory is still 155.2MB. Free memory was 112.4MB in the beginning and 115.9MB in the end (delta: -3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 04:00:56,610 INFO L158 Benchmark]: CodeCheck took 1249.19ms. Allocated memory is still 155.2MB. Free memory was 115.9MB in the beginning and 69.2MB in the end (delta: 46.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-19 04:00:56,611 INFO L158 Benchmark]: Witness Printer took 134.94ms. Allocated memory is still 155.2MB. Free memory was 69.2MB in the beginning and 65.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:00:56,621 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, 13 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 71 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 151 IncrementalHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 16 mSDtfsCounter, 151 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 143 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.46ms. Allocated memory is still 155.2MB. Free memory was 125.6MB in the beginning and 115.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.34ms. Allocated memory is still 155.2MB. Free memory was 115.6MB in the beginning and 113.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.50ms. Allocated memory is still 155.2MB. Free memory was 113.8MB in the beginning and 112.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 496.88ms. Allocated memory is still 155.2MB. Free memory was 112.4MB in the beginning and 115.9MB in the end (delta: -3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1249.19ms. Allocated memory is still 155.2MB. Free memory was 115.9MB in the beginning and 69.2MB in the end (delta: 46.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 134.94ms. Allocated memory is still 155.2MB. Free memory was 69.2MB in the beginning and 65.0MB 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! [2023-11-19 04:00:56,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e0669-e147-4037-b4f3-e351baa89a2b/bin/ukojak-verify-G8NBE6pJGL/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