./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_loop-invariants/recursified_const.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_a2f10528-6442-4698-bbec-3cd960f9eb83/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f10528-6442-4698-bbec-3cd960f9eb83/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f10528-6442-4698-bbec-3cd960f9eb83/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f10528-6442-4698-bbec-3cd960f9eb83/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_loop-invariants/recursified_const.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f10528-6442-4698-bbec-3cd960f9eb83/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f10528-6442-4698-bbec-3cd960f9eb83/bin/ukojak-verify-afCqCEvfdi --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 df68cc134d4c89196adaa50333a41be4199690de58eaf3e6fbecc9a5100092fe --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:59:18,745 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:59:18,854 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f10528-6442-4698-bbec-3cd960f9eb83/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:59:18,861 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:59:18,862 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:59:18,892 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:59:18,894 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:59:18,895 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:59:18,896 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:59:18,897 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:59:18,898 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:59:18,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:59:18,899 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:59:18,900 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:59:18,901 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:59:18,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:59:18,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:59:18,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:59:18,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:59:18,904 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:59:18,905 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:59:18,909 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:59:18,910 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:59:18,911 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:59:18,912 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:59:18,912 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:59:18,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:59:18,914 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:59:18,914 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:59:18,915 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:59:18,916 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:59:18,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:59:18,917 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:59:18,918 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_a2f10528-6442-4698-bbec-3cd960f9eb83/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f10528-6442-4698-bbec-3cd960f9eb83/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df68cc134d4c89196adaa50333a41be4199690de58eaf3e6fbecc9a5100092fe [2023-11-24 22:59:19,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:59:19,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:59:19,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:59:19,316 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:59:19,316 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:59:19,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f10528-6442-4698-bbec-3cd960f9eb83/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/recursified_loop-invariants/recursified_const.c [2023-11-24 22:59:23,365 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:59:23,694 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:59:23,695 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f10528-6442-4698-bbec-3cd960f9eb83/sv-benchmarks/c/recursified_loop-invariants/recursified_const.c [2023-11-24 22:59:23,707 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f10528-6442-4698-bbec-3cd960f9eb83/bin/ukojak-verify-afCqCEvfdi/data/8a717e0fd/0ead295e0131426596934d3265819fd5/FLAGbfd6c1c8f [2023-11-24 22:59:23,732 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f10528-6442-4698-bbec-3cd960f9eb83/bin/ukojak-verify-afCqCEvfdi/data/8a717e0fd/0ead295e0131426596934d3265819fd5 [2023-11-24 22:59:23,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:59:23,744 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:59:23,745 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:59:23,746 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:59:23,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:59:23,757 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:59:23" (1/1) ... [2023-11-24 22:59:23,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a660ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:59:23, skipping insertion in model container [2023-11-24 22:59:23,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:59:23" (1/1) ... [2023-11-24 22:59:23,796 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:59:24,030 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_a2f10528-6442-4698-bbec-3cd960f9eb83/sv-benchmarks/c/recursified_loop-invariants/recursified_const.c[979,992] [2023-11-24 22:59:24,048 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:59:24,065 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:59:24,085 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_a2f10528-6442-4698-bbec-3cd960f9eb83/sv-benchmarks/c/recursified_loop-invariants/recursified_const.c[979,992] [2023-11-24 22:59:24,093 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:59:24,115 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:59:24,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:59:24 WrapperNode [2023-11-24 22:59:24,117 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:59:24,118 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:59:24,118 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:59:24,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:59:24,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:59:24" (1/1) ... [2023-11-24 22:59:24,141 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:59:24" (1/1) ... [2023-11-24 22:59:24,168 INFO L138 Inliner]: procedures = 15, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2023-11-24 22:59:24,169 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:59:24,170 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:59:24,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:59:24,171 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:59:24,180 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:59:24" (1/1) ... [2023-11-24 22:59:24,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:59:24" (1/1) ... [2023-11-24 22:59:24,197 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:59:24" (1/1) ... [2023-11-24 22:59:24,197 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:59:24" (1/1) ... [2023-11-24 22:59:24,201 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:59:24" (1/1) ... [2023-11-24 22:59:24,206 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:59:24" (1/1) ... [2023-11-24 22:59:24,218 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:59:24" (1/1) ... [2023-11-24 22:59:24,227 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:59:24" (1/1) ... [2023-11-24 22:59:24,229 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:59:24,230 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:59:24,230 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:59:24,230 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:59:24,231 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:59:24" (1/1) ... [2023-11-24 22:59:24,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:59:24,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f10528-6442-4698-bbec-3cd960f9eb83/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:59:24,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f10528-6442-4698-bbec-3cd960f9eb83/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:59:24,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f10528-6442-4698-bbec-3cd960f9eb83/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:59:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:59:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_13_to_18_0 [2023-11-24 22:59:24,329 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_13_to_18_0 [2023-11-24 22:59:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:59:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:59:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:59:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:59:24,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:59:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:59:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:59:24,451 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:59:24,454 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:59:24,719 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:59:24,772 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:59:24,772 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:59:24,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:59:24 BoogieIcfgContainer [2023-11-24 22:59:24,775 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:59:24,776 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:59:24,776 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:59:24,789 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:59:24,789 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:59:24" (1/1) ... [2023-11-24 22:59:24,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:59:24,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:24,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2023-11-24 22:59:24,871 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2023-11-24 22:59:24,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:59:24,878 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:24,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:59:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:25,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:59:26,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:26,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 24 transitions. [2023-11-24 22:59:26,065 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2023-11-24 22:59:26,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:59:26,068 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:26,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:59:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:26,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:59:26,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:26,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 26 transitions. [2023-11-24 22:59:26,751 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2023-11-24 22:59:26,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 22:59:26,752 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:26,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:59:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:27,419 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:59:27,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:27,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 14 transitions. [2023-11-24 22:59:27,538 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-24 22:59:27,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:59:27,539 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2023-11-24 22:59:27,550 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-24 22:59:27,580 INFO L560 CodeCheckObserver]: Invariant with dag size 7 [2023-11-24 22:59:27,589 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~s!base][~s!offset] could not be translated [2023-11-24 22:59:27,594 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:59:27,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:59:27 ImpRootNode [2023-11-24 22:59:27,596 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:59:27,597 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:59:27,597 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:59:27,597 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:59:27,598 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:59:24" (3/4) ... [2023-11-24 22:59:27,601 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:59:27,606 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure func_to_recursive_line_13_to_18_0 [2023-11-24 22:59:27,613 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-24 22:59:27,614 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-24 22:59:27,614 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-24 22:59:27,615 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:59:27,615 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:59:27,725 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f10528-6442-4698-bbec-3cd960f9eb83/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:59:27,725 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f10528-6442-4698-bbec-3cd960f9eb83/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 22:59:27,726 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:59:27,727 INFO L158 Benchmark]: Toolchain (without parser) took 3983.18ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 119.0MB in the beginning and 103.1MB in the end (delta: 15.9MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2023-11-24 22:59:27,727 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:59:27,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.84ms. Allocated memory is still 151.0MB. Free memory was 119.0MB in the beginning and 108.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:59:27,729 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.10ms. Allocated memory is still 151.0MB. Free memory was 108.5MB in the beginning and 107.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:59:27,729 INFO L158 Benchmark]: Boogie Preprocessor took 59.47ms. Allocated memory is still 151.0MB. Free memory was 107.0MB in the beginning and 105.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:59:27,730 INFO L158 Benchmark]: RCFGBuilder took 545.08ms. Allocated memory is still 151.0MB. Free memory was 105.9MB in the beginning and 93.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:59:27,731 INFO L158 Benchmark]: CodeCheck took 2819.97ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 93.3MB in the beginning and 107.3MB in the end (delta: -14.0MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2023-11-24 22:59:27,731 INFO L158 Benchmark]: Witness Printer took 129.35ms. Allocated memory is still 197.1MB. Free memory was 107.3MB in the beginning and 103.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:59:27,734 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, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 31 mSDtfsCounter, 73 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 262 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 6/7 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: 27]: 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 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.84ms. Allocated memory is still 151.0MB. Free memory was 119.0MB in the beginning and 108.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.10ms. Allocated memory is still 151.0MB. Free memory was 108.5MB in the beginning and 107.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.47ms. Allocated memory is still 151.0MB. Free memory was 107.0MB in the beginning and 105.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 545.08ms. Allocated memory is still 151.0MB. Free memory was 105.9MB in the beginning and 93.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 2819.97ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 93.3MB in the beginning and 107.3MB in the end (delta: -14.0MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. * Witness Printer took 129.35ms. Allocated memory is still 197.1MB. Free memory was 107.3MB in the beginning and 103.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~s!base][~s!offset] could not be translated RESULT: Ultimate proved your program to be correct! [2023-11-24 22:59:27,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f10528-6442-4698-bbec-3cd960f9eb83/bin/ukojak-verify-afCqCEvfdi/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