./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37fd859d-4408-40b8-989a-e664577d3cbf/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37fd859d-4408-40b8-989a-e664577d3cbf/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37fd859d-4408-40b8-989a-e664577d3cbf/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37fd859d-4408-40b8-989a-e664577d3cbf/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37fd859d-4408-40b8-989a-e664577d3cbf/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37fd859d-4408-40b8-989a-e664577d3cbf/bin/ukojak-verify-0OAaufAVZV --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 e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:58:43,848 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:58:43,967 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37fd859d-4408-40b8-989a-e664577d3cbf/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-11 23:58:43,976 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:58:43,979 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:58:44,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:58:44,010 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:58:44,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:58:44,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:58:44,012 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:58:44,013 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:58:44,013 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:58:44,014 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-11 23:58:44,014 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:58:44,015 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-11 23:58:44,016 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:58:44,016 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:58:44,017 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:58:44,017 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:58:44,018 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-11 23:58:44,019 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:58:44,019 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-11 23:58:44,020 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:58:44,020 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:58:44,021 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:58:44,021 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:58:44,022 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:58:44,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:58:44,023 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:58:44,024 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:58:44,024 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:58:44,025 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:58:44,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:58:44,026 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:58:44,026 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_37fd859d-4408-40b8-989a-e664577d3cbf/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37fd859d-4408-40b8-989a-e664577d3cbf/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 [2023-11-11 23:58:44,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:58:44,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:58:44,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:58:44,358 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:58:44,359 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:58:44,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37fd859d-4408-40b8-989a-e664577d3cbf/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2023-11-11 23:58:47,699 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:58:47,893 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:58:47,893 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37fd859d-4408-40b8-989a-e664577d3cbf/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2023-11-11 23:58:47,902 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37fd859d-4408-40b8-989a-e664577d3cbf/bin/ukojak-verify-0OAaufAVZV/data/5ded90f6e/13829f9851704848bfe10c31b594ebd0/FLAGb06e7593d [2023-11-11 23:58:47,918 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37fd859d-4408-40b8-989a-e664577d3cbf/bin/ukojak-verify-0OAaufAVZV/data/5ded90f6e/13829f9851704848bfe10c31b594ebd0 [2023-11-11 23:58:47,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:58:47,930 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:58:47,934 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:58:47,935 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:58:47,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:58:47,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:58:47" (1/1) ... [2023-11-11 23:58:47,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@621f3219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:47, skipping insertion in model container [2023-11-11 23:58:47,943 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:58:47" (1/1) ... [2023-11-11 23:58:47,964 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:58:48,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:58:48,130 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:58:48,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:58:48,165 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:58:48,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:48 WrapperNode [2023-11-11 23:58:48,166 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:58:48,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:58:48,168 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:58:48,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:58:48,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:48" (1/1) ... [2023-11-11 23:58:48,186 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:48" (1/1) ... [2023-11-11 23:58:48,209 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 33 [2023-11-11 23:58:48,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:58:48,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:58:48,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:58:48,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:58:48,222 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:48" (1/1) ... [2023-11-11 23:58:48,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:48" (1/1) ... [2023-11-11 23:58:48,226 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:48" (1/1) ... [2023-11-11 23:58:48,227 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:48" (1/1) ... [2023-11-11 23:58:48,231 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:48" (1/1) ... [2023-11-11 23:58:48,233 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:48" (1/1) ... [2023-11-11 23:58:48,234 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:48" (1/1) ... [2023-11-11 23:58:48,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:48" (1/1) ... [2023-11-11 23:58:48,237 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:58:48,239 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:58:48,239 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:58:48,239 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:58:48,240 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:48" (1/1) ... [2023-11-11 23:58:48,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:58:48,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37fd859d-4408-40b8-989a-e664577d3cbf/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:58:48,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37fd859d-4408-40b8-989a-e664577d3cbf/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:58:48,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37fd859d-4408-40b8-989a-e664577d3cbf/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:58:48,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:58:48,330 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2023-11-11 23:58:48,331 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2023-11-11 23:58:48,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:58:48,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:58:48,331 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2023-11-11 23:58:48,332 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2023-11-11 23:58:48,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-11 23:58:48,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:58:48,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:58:48,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-11 23:58:48,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:58:48,417 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:58:48,442 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:58:48,612 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:58:48,649 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:58:48,649 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-11 23:58:48,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:58:48 BoogieIcfgContainer [2023-11-11 23:58:48,652 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:58:48,653 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:58:48,654 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:58:48,665 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:58:48,666 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:58:48" (1/1) ... [2023-11-11 23:58:48,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:58:48,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:58:48,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 17 states and 18 transitions. [2023-11-11 23:58:48,736 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2023-11-11 23:58:48,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:58:48,741 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:58:48,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:58:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:58:49,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:58:49,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:58:49,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 25 transitions. [2023-11-11 23:58:49,626 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-11-11 23:58:49,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-11 23:58:49,626 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:58:49,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:58:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:58:49,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:58:50,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:58:50,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 28 states and 33 transitions. [2023-11-11 23:58:50,408 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-11 23:58:50,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-11 23:58:50,410 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:58:50,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:58:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:58:50,893 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:58:51,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:58:51,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 42 transitions. [2023-11-11 23:58:51,455 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2023-11-11 23:58:51,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-11 23:58:51,456 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:58:51,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:58:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:58:51,897 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:58:52,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:58:52,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 41 states and 52 transitions. [2023-11-11 23:58:52,804 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2023-11-11 23:58:52,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-11 23:58:52,805 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:58:52,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:58:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:58:53,062 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-11 23:58:53,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:58:53,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 34 states and 42 transitions. [2023-11-11 23:58:53,190 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2023-11-11 23:58:53,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-11 23:58:53,192 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:58:53,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:58:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:58:53,994 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:58:54,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:58:54,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 41 states and 51 transitions. [2023-11-11 23:58:54,855 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2023-11-11 23:58:54,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-11 23:58:54,856 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:58:54,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:58:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:58:55,729 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:58:56,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:58:56,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 48 states and 60 transitions. [2023-11-11 23:58:56,771 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 60 transitions. [2023-11-11 23:58:56,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-11 23:58:56,773 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:58:56,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:58:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:58:57,883 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:58:58,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:58:58,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 55 states and 69 transitions. [2023-11-11 23:58:58,968 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 69 transitions. [2023-11-11 23:58:58,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-11 23:58:58,969 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:58:58,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:58:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:00,319 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:01,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:01,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 62 states and 78 transitions. [2023-11-11 23:59:01,566 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2023-11-11 23:59:01,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-11 23:59:01,573 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:01,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:01,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:03,166 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:04,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:04,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 69 states and 87 transitions. [2023-11-11 23:59:04,662 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 87 transitions. [2023-11-11 23:59:04,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-11 23:59:04,663 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:04,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:06,570 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:08,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:08,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 76 states and 96 transitions. [2023-11-11 23:59:08,016 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 96 transitions. [2023-11-11 23:59:08,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-11 23:59:08,017 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:08,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:10,084 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:11,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:11,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 83 states and 105 transitions. [2023-11-11 23:59:11,733 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 105 transitions. [2023-11-11 23:59:11,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-11 23:59:11,735 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:11,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:12,527 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2023-11-11 23:59:14,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:14,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 82 states and 104 transitions. [2023-11-11 23:59:14,079 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 104 transitions. [2023-11-11 23:59:14,080 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-11 23:59:14,081 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 14 iterations. [2023-11-11 23:59:14,090 INFO L753 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-11 23:59:14,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:59:14 ImpRootNode [2023-11-11 23:59:14,728 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:59:14,728 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:59:14,728 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:59:14,729 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:59:14,729 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:58:48" (3/4) ... [2023-11-11 23:59:14,732 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-11 23:59:14,736 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2023-11-11 23:59:14,737 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure plus [2023-11-11 23:59:14,742 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-11 23:59:14,742 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-11 23:59:14,742 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-11 23:59:14,743 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-11 23:59:14,743 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-11 23:59:14,854 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37fd859d-4408-40b8-989a-e664577d3cbf/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:59:14,855 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37fd859d-4408-40b8-989a-e664577d3cbf/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-11 23:59:14,855 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:59:14,857 INFO L158 Benchmark]: Toolchain (without parser) took 26926.60ms. Allocated memory was 134.2MB in the beginning and 394.3MB in the end (delta: 260.0MB). Free memory was 86.8MB in the beginning and 300.7MB in the end (delta: -213.9MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2023-11-11 23:59:14,857 INFO L158 Benchmark]: CDTParser took 0.90ms. Allocated memory is still 96.5MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:59:14,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.89ms. Allocated memory is still 134.2MB. Free memory was 86.4MB in the beginning and 76.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-11 23:59:14,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.03ms. Allocated memory is still 134.2MB. Free memory was 76.4MB in the beginning and 74.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:59:14,866 INFO L158 Benchmark]: Boogie Preprocessor took 26.54ms. Allocated memory is still 134.2MB. Free memory was 74.8MB in the beginning and 74.0MB in the end (delta: 769.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:59:14,866 INFO L158 Benchmark]: RCFGBuilder took 413.94ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 73.7MB in the beginning and 152.9MB in the end (delta: -79.2MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2023-11-11 23:59:14,867 INFO L158 Benchmark]: CodeCheck took 26074.33ms. Allocated memory was 184.5MB in the beginning and 394.3MB in the end (delta: 209.7MB). Free memory was 152.9MB in the beginning and 305.8MB in the end (delta: -153.0MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. [2023-11-11 23:59:14,868 INFO L158 Benchmark]: Witness Printer took 127.68ms. Allocated memory is still 394.3MB. Free memory was 304.9MB in the beginning and 300.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-11 23:59:14,870 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 25.4s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 390 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 328 mSDsluCounter, 702 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 298 mSDsCounter, 1021 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2275 IncrementalHoareTripleChecker+Invalid, 3296 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1021 mSolverCounterUnsat, 404 mSDtfsCounter, 2275 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3402 GetRequests, 2947 SyntacticMatches, 223 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23686 ImplicationChecksByTransitivity, 16.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 12.2s InterpolantComputationTime, 437 NumberOfCodeBlocks, 437 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 424 ConstructedInterpolants, 0 QuantifiedInterpolants, 2352 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 328/1132 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: 7]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7]: 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 0.90ms. Allocated memory is still 96.5MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.89ms. Allocated memory is still 134.2MB. Free memory was 86.4MB in the beginning and 76.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.03ms. Allocated memory is still 134.2MB. Free memory was 76.4MB in the beginning and 74.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.54ms. Allocated memory is still 134.2MB. Free memory was 74.8MB in the beginning and 74.0MB in the end (delta: 769.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 413.94ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 73.7MB in the beginning and 152.9MB in the end (delta: -79.2MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * CodeCheck took 26074.33ms. Allocated memory was 184.5MB in the beginning and 394.3MB in the end (delta: 209.7MB). Free memory was 152.9MB in the beginning and 305.8MB in the end (delta: -153.0MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. * Witness Printer took 127.68ms. Allocated memory is still 394.3MB. Free memory was 304.9MB in the beginning and 300.7MB 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! [2023-11-11 23:59:14,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37fd859d-4408-40b8-989a-e664577d3cbf/bin/ukojak-verify-0OAaufAVZV/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