./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_b7b40a67-3271-4c4b-8f53-5af3f722d25f/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b40a67-3271-4c4b-8f53-5af3f722d25f/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_b7b40a67-3271-4c4b-8f53-5af3f722d25f/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b40a67-3271-4c4b-8f53-5af3f722d25f/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_b7b40a67-3271-4c4b-8f53-5af3f722d25f/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b40a67-3271-4c4b-8f53-5af3f722d25f/bin/ukojak-verify-0OAaufAVZV --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --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 23:47:23,828 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:47:23,915 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b40a67-3271-4c4b-8f53-5af3f722d25f/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-11 23:47:23,922 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:47:23,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:47:23,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:47:23,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:47:23,956 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:47:23,958 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:47:23,959 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:47:23,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:47:23,960 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:47:23,961 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-11 23:47:23,962 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:47:23,963 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-11 23:47:23,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:47:23,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:47:23,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:47:23,967 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:47:23,968 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-11 23:47:23,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:47:23,981 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:47:23,982 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:47:23,983 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:47:23,983 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:47:23,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:47:23,985 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:47:23,986 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:47:23,987 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:47:23,987 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:47:23,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:47:23,990 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:47:23,990 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_b7b40a67-3271-4c4b-8f53-5af3f722d25f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b40a67-3271-4c4b-8f53-5af3f722d25f/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 [2023-11-11 23:47:24,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:47:24,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:47:24,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:47:24,450 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:47:24,452 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:47:24,454 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b40a67-3271-4c4b-8f53-5af3f722d25f/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2023-11-11 23:47:28,058 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:47:28,347 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:47:28,349 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b40a67-3271-4c4b-8f53-5af3f722d25f/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2023-11-11 23:47:28,359 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b40a67-3271-4c4b-8f53-5af3f722d25f/bin/ukojak-verify-0OAaufAVZV/data/83b255e66/a739c1c9c5f641adae279d68cd8c92f4/FLAG36970f563 [2023-11-11 23:47:28,386 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b40a67-3271-4c4b-8f53-5af3f722d25f/bin/ukojak-verify-0OAaufAVZV/data/83b255e66/a739c1c9c5f641adae279d68cd8c92f4 [2023-11-11 23:47:28,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:47:28,401 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:47:28,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:47:28,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:47:28,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:47:28,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:47:28" (1/1) ... [2023-11-11 23:47:28,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cef52ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:28, skipping insertion in model container [2023-11-11 23:47:28,419 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:47:28" (1/1) ... [2023-11-11 23:47:28,449 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:47:28,680 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b40a67-3271-4c4b-8f53-5af3f722d25f/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c[439,452] [2023-11-11 23:47:28,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:47:28,712 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:47:28,735 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b40a67-3271-4c4b-8f53-5af3f722d25f/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c[439,452] [2023-11-11 23:47:28,739 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:47:28,762 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:47:28,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:28 WrapperNode [2023-11-11 23:47:28,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:47:28,764 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:47:28,765 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:47:28,765 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:47:28,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:28" (1/1) ... [2023-11-11 23:47:28,786 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:28" (1/1) ... [2023-11-11 23:47:28,806 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2023-11-11 23:47:28,807 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:47:28,808 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:47:28,808 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:47:28,808 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:47:28,818 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:28" (1/1) ... [2023-11-11 23:47:28,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:28" (1/1) ... [2023-11-11 23:47:28,828 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:28" (1/1) ... [2023-11-11 23:47:28,828 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:28" (1/1) ... [2023-11-11 23:47:28,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:28" (1/1) ... [2023-11-11 23:47:28,834 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:28" (1/1) ... [2023-11-11 23:47:28,840 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:28" (1/1) ... [2023-11-11 23:47:28,841 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:28" (1/1) ... [2023-11-11 23:47:28,848 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:47:28,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:47:28,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:47:28,849 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:47:28,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:28" (1/1) ... [2023-11-11 23:47:28,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:47:28,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b40a67-3271-4c4b-8f53-5af3f722d25f/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:47:28,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b40a67-3271-4c4b-8f53-5af3f722d25f/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:47:28,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b40a67-3271-4c4b-8f53-5af3f722d25f/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:47:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:47:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2023-11-11 23:47:28,942 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2023-11-11 23:47:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:47:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:47:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2023-11-11 23:47:28,943 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2023-11-11 23:47:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-11 23:47:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:47:28,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:47:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-11 23:47:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:47:29,038 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:47:29,041 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:47:29,201 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:47:29,231 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:47:29,231 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-11 23:47:29,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:47:29 BoogieIcfgContainer [2023-11-11 23:47:29,235 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:47:29,236 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:47:29,236 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:47:29,249 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:47:29,249 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:47:29" (1/1) ... [2023-11-11 23:47:29,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:47:29,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:29,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-11-11 23:47:29,333 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-11-11 23:47:29,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:47:29,341 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:29,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:29,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:29,885 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 23:47:29,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:29,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 20 transitions. [2023-11-11 23:47:29,992 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2023-11-11 23:47:29,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-11 23:47:29,994 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:29,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:30,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:31,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:31,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 29 transitions. [2023-11-11 23:47:31,178 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-11-11 23:47:31,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-11 23:47:31,179 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:31,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:31,930 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:32,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:32,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 28 states and 39 transitions. [2023-11-11 23:47:32,838 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2023-11-11 23:47:32,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-11 23:47:32,840 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:32,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:34,045 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:36,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:36,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 37 states and 60 transitions. [2023-11-11 23:47:36,166 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2023-11-11 23:47:36,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-11 23:47:36,167 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:36,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:37,131 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:38,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:38,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 42 states and 73 transitions. [2023-11-11 23:47:38,520 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 73 transitions. [2023-11-11 23:47:38,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-11 23:47:38,522 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:38,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:39,727 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:41,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:41,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 47 states and 87 transitions. [2023-11-11 23:47:41,533 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 87 transitions. [2023-11-11 23:47:41,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-11 23:47:41,535 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:41,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:43,053 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:45,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:45,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 52 states and 102 transitions. [2023-11-11 23:47:45,059 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 102 transitions. [2023-11-11 23:47:45,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-11 23:47:45,061 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:45,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:46,734 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:48,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:48,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 57 states and 118 transitions. [2023-11-11 23:47:48,733 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 118 transitions. [2023-11-11 23:47:48,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-11 23:47:48,736 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:48,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:50,688 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:52,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:52,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 62 states and 135 transitions. [2023-11-11 23:47:52,557 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 135 transitions. [2023-11-11 23:47:52,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-11 23:47:52,559 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:52,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:54,768 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:57,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:57,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 67 states and 142 transitions. [2023-11-11 23:47:57,058 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 142 transitions. [2023-11-11 23:47:57,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-11 23:47:57,061 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:57,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:48:02,599 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 198 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:48:10,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:48:10,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 61 states and 79 transitions. [2023-11-11 23:48:10,965 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 79 transitions. [2023-11-11 23:48:10,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-11 23:48:10,966 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2023-11-11 23:48:10,975 INFO L753 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-11 23:48:11,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:48:11 ImpRootNode [2023-11-11 23:48:11,234 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:48:11,235 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:48:11,235 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:48:11,235 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:48:11,236 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:47:29" (3/4) ... [2023-11-11 23:48:11,238 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-11 23:48:11,244 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2023-11-11 23:48:11,244 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure plus [2023-11-11 23:48:11,249 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-11 23:48:11,250 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-11 23:48:11,250 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-11 23:48:11,250 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-11 23:48:11,250 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-11 23:48:11,346 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b40a67-3271-4c4b-8f53-5af3f722d25f/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:48:11,347 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b40a67-3271-4c4b-8f53-5af3f722d25f/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-11 23:48:11,347 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:48:11,348 INFO L158 Benchmark]: Toolchain (without parser) took 42947.10ms. Allocated memory was 148.9MB in the beginning and 474.0MB in the end (delta: 325.1MB). Free memory was 100.8MB in the beginning and 298.1MB in the end (delta: -197.2MB). Peak memory consumption was 128.2MB. Max. memory is 16.1GB. [2023-11-11 23:48:11,349 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 113.2MB. Free memory was 67.1MB in the beginning and 67.1MB in the end (delta: 49.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:48:11,349 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.37ms. Allocated memory is still 148.9MB. Free memory was 100.5MB in the beginning and 90.7MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-11 23:48:11,350 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.80ms. Allocated memory is still 148.9MB. Free memory was 90.7MB in the beginning and 89.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:48:11,350 INFO L158 Benchmark]: Boogie Preprocessor took 39.85ms. Allocated memory is still 148.9MB. Free memory was 89.3MB in the beginning and 88.2MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:48:11,351 INFO L158 Benchmark]: RCFGBuilder took 386.23ms. Allocated memory is still 148.9MB. Free memory was 87.9MB in the beginning and 77.1MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-11 23:48:11,352 INFO L158 Benchmark]: CodeCheck took 41998.22ms. Allocated memory was 148.9MB in the beginning and 474.0MB in the end (delta: 325.1MB). Free memory was 77.1MB in the beginning and 302.3MB in the end (delta: -225.2MB). Peak memory consumption was 100.9MB. Max. memory is 16.1GB. [2023-11-11 23:48:11,352 INFO L158 Benchmark]: Witness Printer took 112.23ms. Allocated memory is still 474.0MB. Free memory was 302.3MB in the beginning and 298.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-11 23:48:11,356 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, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.7s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 512 SdHoareTripleChecker+Valid, 5.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 379 mSDsluCounter, 351 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 720 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2943 IncrementalHoareTripleChecker+Invalid, 3663 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 720 mSolverCounterUnsat, 351 mSDtfsCounter, 2943 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4094 GetRequests, 3548 SyntacticMatches, 244 SemanticMatches, 302 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44001 ImplicationChecksByTransitivity, 29.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 17.8s InterpolantComputationTime, 341 NumberOfCodeBlocks, 341 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 330 ConstructedInterpolants, 0 QuantifiedInterpolants, 2149 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 198/935 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 113.2MB. Free memory was 67.1MB in the beginning and 67.1MB in the end (delta: 49.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.37ms. Allocated memory is still 148.9MB. Free memory was 100.5MB in the beginning and 90.7MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.80ms. Allocated memory is still 148.9MB. Free memory was 90.7MB in the beginning and 89.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.85ms. Allocated memory is still 148.9MB. Free memory was 89.3MB in the beginning and 88.2MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 386.23ms. Allocated memory is still 148.9MB. Free memory was 87.9MB in the beginning and 77.1MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 41998.22ms. Allocated memory was 148.9MB in the beginning and 474.0MB in the end (delta: 325.1MB). Free memory was 77.1MB in the beginning and 302.3MB in the end (delta: -225.2MB). Peak memory consumption was 100.9MB. Max. memory is 16.1GB. * Witness Printer took 112.23ms. Allocated memory is still 474.0MB. Free memory was 302.3MB in the beginning and 298.1MB 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 23:48:11,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b40a67-3271-4c4b-8f53-5af3f722d25f/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0