./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_4ed3120c-3035-4d6e-96c8-074225098757/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed3120c-3035-4d6e-96c8-074225098757/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_4ed3120c-3035-4d6e-96c8-074225098757/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed3120c-3035-4d6e-96c8-074225098757/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed3120c-3035-4d6e-96c8-074225098757/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed3120c-3035-4d6e-96c8-074225098757/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 64bit --witnessprinter.graph.data.programhash 626f3da6fd18561761a79d5d72b6e4952ec90284e3abc32807b89f761ebfb898 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:45:38,763 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:45:38,846 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed3120c-3035-4d6e-96c8-074225098757/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 02:45:38,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:45:38,856 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:45:38,899 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:45:38,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:45:38,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:45:38,903 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:45:38,910 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:45:38,912 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:45:38,913 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:45:38,913 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:45:38,914 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:45:38,914 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:45:38,915 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:45:38,915 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:45:38,916 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:45:38,916 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:45:38,917 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:45:38,917 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:45:38,918 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:45:38,918 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:45:38,919 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:45:38,919 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:45:38,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:45:38,920 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:45:38,920 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:45:38,921 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:45:38,921 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:45:38,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:45:38,922 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:45:38,923 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_4ed3120c-3035-4d6e-96c8-074225098757/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed3120c-3035-4d6e-96c8-074225098757/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 626f3da6fd18561761a79d5d72b6e4952ec90284e3abc32807b89f761ebfb898 [2023-11-19 02:45:39,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:45:39,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:45:39,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:45:39,205 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:45:39,205 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:45:39,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed3120c-3035-4d6e-96c8-074225098757/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2023-11-19 02:45:42,391 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:45:42,577 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:45:42,578 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed3120c-3035-4d6e-96c8-074225098757/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2023-11-19 02:45:42,585 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed3120c-3035-4d6e-96c8-074225098757/bin/ukojak-verify-G8NBE6pJGL/data/22ab5d9b4/fdb176d220de400290f79cd521396818/FLAG862fd3aa3 [2023-11-19 02:45:42,603 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed3120c-3035-4d6e-96c8-074225098757/bin/ukojak-verify-G8NBE6pJGL/data/22ab5d9b4/fdb176d220de400290f79cd521396818 [2023-11-19 02:45:42,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:45:42,607 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:45:42,609 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:45:42,609 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:45:42,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:45:42,619 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:45:42" (1/1) ... [2023-11-19 02:45:42,620 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70192584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:42, skipping insertion in model container [2023-11-19 02:45:42,621 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:45:42" (1/1) ... [2023-11-19 02:45:42,645 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:45:42,785 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:45:42,790 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:45:42,804 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:45:42,815 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:45:42,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:42 WrapperNode [2023-11-19 02:45:42,816 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:45:42,817 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:45:42,817 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:45:42,817 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:45:42,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:42" (1/1) ... [2023-11-19 02:45:42,826 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:42" (1/1) ... [2023-11-19 02:45:42,841 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2023-11-19 02:45:42,842 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:45:42,843 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:45:42,843 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:45:42,843 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:45:42,851 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:42" (1/1) ... [2023-11-19 02:45:42,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:42" (1/1) ... [2023-11-19 02:45:42,853 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:42" (1/1) ... [2023-11-19 02:45:42,853 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:42" (1/1) ... [2023-11-19 02:45:42,855 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:42" (1/1) ... [2023-11-19 02:45:42,859 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:42" (1/1) ... [2023-11-19 02:45:42,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:42" (1/1) ... [2023-11-19 02:45:42,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:42" (1/1) ... [2023-11-19 02:45:42,862 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:45:42,863 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:45:42,863 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:45:42,863 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:45:42,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:42" (1/1) ... [2023-11-19 02:45:42,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:45:42,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed3120c-3035-4d6e-96c8-074225098757/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:45:42,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed3120c-3035-4d6e-96c8-074225098757/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:45:42,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed3120c-3035-4d6e-96c8-074225098757/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:45:42,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:45:42,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:45:43,029 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:45:43,031 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:45:43,114 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:45:43,138 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:45:43,139 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:45:43,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:45:43 BoogieIcfgContainer [2023-11-19 02:45:43,152 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:45:43,153 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:45:43,153 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:45:43,161 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:45:43,161 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:45:43" (1/1) ... [2023-11-19 02:45:43,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:45:43,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:43,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2023-11-19 02:45:43,225 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-11-19 02:45:43,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 02:45:43,228 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:43,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:43,405 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 02:45:43,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:43,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2023-11-19 02:45:43,461 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-11-19 02:45:43,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 02:45:43,461 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:43,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:43,521 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 02:45:43,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:43,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2023-11-19 02:45:43,613 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-11-19 02:45:43,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 02:45:43,615 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:43,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:43,705 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 02:45:43,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:43,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-11-19 02:45:43,919 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-11-19 02:45:43,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 02:45:43,920 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:43,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:43,961 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 02:45:44,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:44,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 18 states and 28 transitions. [2023-11-19 02:45:44,188 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2023-11-19 02:45:44,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 02:45:44,189 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:44,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:44,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:45:44,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:44,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 18 states and 27 transitions. [2023-11-19 02:45:44,306 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 27 transitions. [2023-11-19 02:45:44,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 02:45:44,307 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:44,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:44,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:45:44,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:44,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-11-19 02:45:44,478 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-11-19 02:45:44,478 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:45:44,479 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-11-19 02:45:44,489 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-19 02:45:44,536 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2023-11-19 02:45:44,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:45:44 ImpRootNode [2023-11-19 02:45:44,547 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:45:44,548 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:45:44,548 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:45:44,548 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:45:44,549 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:45:43" (3/4) ... [2023-11-19 02:45:44,557 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:45:44,569 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-19 02:45:44,570 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 02:45:44,570 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 02:45:44,666 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed3120c-3035-4d6e-96c8-074225098757/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:45:44,666 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed3120c-3035-4d6e-96c8-074225098757/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:45:44,666 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:45:44,667 INFO L158 Benchmark]: Toolchain (without parser) took 2059.80ms. Allocated memory was 123.7MB in the beginning and 178.3MB in the end (delta: 54.5MB). Free memory was 78.4MB in the beginning and 85.5MB in the end (delta: -7.1MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2023-11-19 02:45:44,668 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory is still 71.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:45:44,668 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.12ms. Allocated memory is still 123.7MB. Free memory was 78.1MB in the beginning and 68.9MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:45:44,669 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.20ms. Allocated memory is still 123.7MB. Free memory was 68.9MB in the beginning and 67.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:45:44,669 INFO L158 Benchmark]: Boogie Preprocessor took 19.24ms. Allocated memory is still 123.7MB. Free memory was 67.3MB in the beginning and 66.5MB in the end (delta: 770.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:45:44,670 INFO L158 Benchmark]: RCFGBuilder took 289.83ms. Allocated memory was 123.7MB in the beginning and 178.3MB in the end (delta: 54.5MB). Free memory was 66.5MB in the beginning and 149.4MB in the end (delta: -82.9MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2023-11-19 02:45:44,670 INFO L158 Benchmark]: CodeCheck took 1393.61ms. Allocated memory is still 178.3MB. Free memory was 149.4MB in the beginning and 89.7MB in the end (delta: 59.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2023-11-19 02:45:44,671 INFO L158 Benchmark]: Witness Printer took 118.66ms. Allocated memory is still 178.3MB. Free memory was 89.7MB in the beginning and 85.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:45:44,674 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 117 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81 mSDsluCounter, 167 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 115 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 216 IncrementalHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 52 mSDtfsCounter, 216 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 331 GetRequests, 285 SyntacticMatches, 10 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 4/4 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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: 18]: Loop Invariant Derived loop invariant: ((x <= 2147483647) && (y <= 2147483647)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory is still 71.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.12ms. Allocated memory is still 123.7MB. Free memory was 78.1MB in the beginning and 68.9MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.20ms. Allocated memory is still 123.7MB. Free memory was 68.9MB in the beginning and 67.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.24ms. Allocated memory is still 123.7MB. Free memory was 67.3MB in the beginning and 66.5MB in the end (delta: 770.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 289.83ms. Allocated memory was 123.7MB in the beginning and 178.3MB in the end (delta: 54.5MB). Free memory was 66.5MB in the beginning and 149.4MB in the end (delta: -82.9MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * CodeCheck took 1393.61ms. Allocated memory is still 178.3MB. Free memory was 149.4MB in the beginning and 89.7MB in the end (delta: 59.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Witness Printer took 118.66ms. Allocated memory is still 178.3MB. Free memory was 89.7MB in the beginning and 85.5MB 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 02:45:44,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed3120c-3035-4d6e-96c8-074225098757/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