./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_b3_o2-2.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_2508a0b2-24a1-4525-9633-65c9d82be4eb/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2508a0b2-24a1-4525-9633-65c9d82be4eb/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_2508a0b2-24a1-4525-9633-65c9d82be4eb/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2508a0b2-24a1-4525-9633-65c9d82be4eb/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b3_o2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2508a0b2-24a1-4525-9633-65c9d82be4eb/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_2508a0b2-24a1-4525-9633-65c9d82be4eb/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 18afe523baca40cb7d279a05e0d0a8c37efda6f4bcc6a4be698eb3701f39ab37 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:53:52,723 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:53:52,846 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2508a0b2-24a1-4525-9633-65c9d82be4eb/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-19 02:53:52,855 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:53:52,855 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:53:52,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:53:52,896 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:53:52,897 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:53:52,898 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:53:52,905 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:53:52,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:53:52,907 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:53:52,907 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:53:52,909 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:53:52,909 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:53:52,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:53:52,910 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:53:52,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:53:52,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:53:52,911 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:53:52,912 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:53:52,912 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:53:52,913 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:53:52,913 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:53:52,914 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:53:52,914 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:53:52,914 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:53:52,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:53:52,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:53:52,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:53:52,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:53:52,918 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:53:52,918 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:53:52,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:53:52,918 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:53:52,918 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_2508a0b2-24a1-4525-9633-65c9d82be4eb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2508a0b2-24a1-4525-9633-65c9d82be4eb/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18afe523baca40cb7d279a05e0d0a8c37efda6f4bcc6a4be698eb3701f39ab37 [2023-11-19 02:53:53,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:53:53,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:53:53,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:53:53,216 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:53:53,216 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:53:53,218 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2508a0b2-24a1-4525-9633-65c9d82be4eb/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/recursive-simple/id_b3_o2-2.c [2023-11-19 02:53:56,485 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:53:56,663 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:53:56,664 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2508a0b2-24a1-4525-9633-65c9d82be4eb/sv-benchmarks/c/recursive-simple/id_b3_o2-2.c [2023-11-19 02:53:56,671 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2508a0b2-24a1-4525-9633-65c9d82be4eb/bin/ukojak-verify-G8NBE6pJGL/data/1cc100609/3fb1d3f8f0a547e0b6bade0c98b93ca1/FLAGd1e79d987 [2023-11-19 02:53:56,686 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2508a0b2-24a1-4525-9633-65c9d82be4eb/bin/ukojak-verify-G8NBE6pJGL/data/1cc100609/3fb1d3f8f0a547e0b6bade0c98b93ca1 [2023-11-19 02:53:56,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:53:56,690 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:53:56,692 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:53:56,692 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:53:56,697 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:53:56,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:53:56" (1/1) ... [2023-11-19 02:53:56,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8935380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:56, skipping insertion in model container [2023-11-19 02:53:56,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:53:56" (1/1) ... [2023-11-19 02:53:56,718 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:53:56,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:53:56,887 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:53:56,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:53:56,912 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:53:56,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:56 WrapperNode [2023-11-19 02:53:56,913 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:53:56,914 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:53:56,914 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:53:56,914 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:53:56,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:56" (1/1) ... [2023-11-19 02:53:56,929 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:56" (1/1) ... [2023-11-19 02:53:56,946 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2023-11-19 02:53:56,947 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:53:56,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:53:56,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:53:56,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:53:56,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:56" (1/1) ... [2023-11-19 02:53:56,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:56" (1/1) ... [2023-11-19 02:53:56,959 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:56" (1/1) ... [2023-11-19 02:53:56,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:56" (1/1) ... [2023-11-19 02:53:56,962 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:56" (1/1) ... [2023-11-19 02:53:56,963 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:56" (1/1) ... [2023-11-19 02:53:56,964 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:56" (1/1) ... [2023-11-19 02:53:56,965 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:56" (1/1) ... [2023-11-19 02:53:56,967 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:53:56,968 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:53:56,968 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:53:56,968 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:53:56,969 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:56" (1/1) ... [2023-11-19 02:53:56,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:53:56,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2508a0b2-24a1-4525-9633-65c9d82be4eb/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:53:57,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2508a0b2-24a1-4525-9633-65c9d82be4eb/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:53:57,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2508a0b2-24a1-4525-9633-65c9d82be4eb/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:53:57,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:53:57,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:53:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:53:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:53:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure id [2023-11-19 02:53:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2023-11-19 02:53:57,112 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:53:57,114 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:53:57,331 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:53:57,392 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:53:57,392 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:53:57,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:53:57 BoogieIcfgContainer [2023-11-19 02:53:57,400 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:53:57,401 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:53:57,402 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:53:57,413 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:53:57,413 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:53:57" (1/1) ... [2023-11-19 02:53:57,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:53:57,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:53:57,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2023-11-19 02:53:57,496 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-19 02:53:57,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 02:53:57,502 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:53:57,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:53:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:53:57,890 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 02:53:57,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:53:57,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2023-11-19 02:53:57,979 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-19 02:53:57,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 02:53:57,980 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:53:57,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:53:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:53:58,121 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 02:53:58,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:53:58,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2023-11-19 02:53:58,156 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-11-19 02:53:58,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 02:53:58,157 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:53:58,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:53:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:53:58,216 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 02:53:58,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:53:58,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2023-11-19 02:53:58,266 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-19 02:53:58,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 02:53:58,267 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:53:58,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:53:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:53:58,454 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 02:53:58,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:53:58,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2023-11-19 02:53:58,610 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2023-11-19 02:53:58,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 02:53:58,611 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:53:58,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:53:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:53:58,959 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 02:53:59,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:53:59,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2023-11-19 02:53:59,135 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2023-11-19 02:53:59,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 02:53:59,139 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:53:59,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:53:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:53:59,486 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-19 02:53:59,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:53:59,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2023-11-19 02:53:59,662 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2023-11-19 02:53:59,663 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:53:59,663 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-11-19 02:53:59,672 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-19 02:53:59,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:53:59 ImpRootNode [2023-11-19 02:53:59,784 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:53:59,784 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:53:59,785 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:53:59,785 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:53:59,785 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:53:57" (3/4) ... [2023-11-19 02:53:59,787 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:53:59,794 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2023-11-19 02:53:59,802 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-19 02:53:59,802 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 02:53:59,803 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 02:53:59,803 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:53:59,908 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2508a0b2-24a1-4525-9633-65c9d82be4eb/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:53:59,908 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2508a0b2-24a1-4525-9633-65c9d82be4eb/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:53:59,909 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:53:59,909 INFO L158 Benchmark]: Toolchain (without parser) took 3219.13ms. Allocated memory is still 176.2MB. Free memory was 131.2MB in the beginning and 61.4MB in the end (delta: 69.8MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. [2023-11-19 02:53:59,910 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 134.2MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:53:59,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.55ms. Allocated memory is still 176.2MB. Free memory was 130.8MB in the beginning and 121.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 02:53:59,911 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.58ms. Allocated memory is still 176.2MB. Free memory was 121.1MB in the beginning and 119.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:53:59,911 INFO L158 Benchmark]: Boogie Preprocessor took 19.61ms. Allocated memory is still 176.2MB. Free memory was 119.4MB in the beginning and 118.6MB in the end (delta: 800.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:53:59,912 INFO L158 Benchmark]: RCFGBuilder took 432.39ms. Allocated memory is still 176.2MB. Free memory was 118.6MB in the beginning and 107.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:53:59,913 INFO L158 Benchmark]: CodeCheck took 2382.34ms. Allocated memory is still 176.2MB. Free memory was 107.7MB in the beginning and 65.5MB in the end (delta: 42.1MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2023-11-19 02:53:59,913 INFO L158 Benchmark]: Witness Printer took 124.47ms. Allocated memory is still 176.2MB. Free memory was 65.5MB in the beginning and 61.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:53:59,915 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 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 164 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 126 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 238 IncrementalHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 90 mSDtfsCounter, 238 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 744 GetRequests, 695 SyntacticMatches, 15 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 235 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 68/118 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: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 134.2MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.55ms. Allocated memory is still 176.2MB. Free memory was 130.8MB in the beginning and 121.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.58ms. Allocated memory is still 176.2MB. Free memory was 121.1MB in the beginning and 119.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.61ms. Allocated memory is still 176.2MB. Free memory was 119.4MB in the beginning and 118.6MB in the end (delta: 800.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 432.39ms. Allocated memory is still 176.2MB. Free memory was 118.6MB in the beginning and 107.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2382.34ms. Allocated memory is still 176.2MB. Free memory was 107.7MB in the beginning and 65.5MB in the end (delta: 42.1MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. * Witness Printer took 124.47ms. Allocated memory is still 176.2MB. Free memory was 65.5MB in the beginning and 61.4MB 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 02:53:59,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2508a0b2-24a1-4525-9633-65c9d82be4eb/bin/ukojak-verify-G8NBE6pJGL/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