./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_loop-invariants/recursified_linear-inequality-inv-b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_15fd7be1-aebd-4820-baf4-e0b7e17f2420/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fd7be1-aebd-4820-baf4-e0b7e17f2420/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fd7be1-aebd-4820-baf4-e0b7e17f2420/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fd7be1-aebd-4820-baf4-e0b7e17f2420/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_loop-invariants/recursified_linear-inequality-inv-b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fd7be1-aebd-4820-baf4-e0b7e17f2420/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fd7be1-aebd-4820-baf4-e0b7e17f2420/bin/ukojak-verify-ImItNfHLgk --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 c117c02695ddb101583ad96117955e242a853299846ac846441a25e3775ce242 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:43:48,514 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:43:48,620 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fd7be1-aebd-4820-baf4-e0b7e17f2420/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 19:43:48,625 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:43:48,625 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 19:43:48,647 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:43:48,648 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:43:48,648 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:43:48,649 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:43:48,649 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:43:48,650 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:43:48,650 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:43:48,651 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:43:48,651 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:43:48,652 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:43:48,652 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:43:48,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:43:48,653 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:43:48,653 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:43:48,653 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:43:48,654 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:43:48,654 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:43:48,655 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:43:48,655 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:43:48,656 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:43:48,656 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:43:48,657 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:43:48,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:43:48,657 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:43:48,658 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:43:48,658 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:43:48,659 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 19:43:48,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:43:48,659 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_15fd7be1-aebd-4820-baf4-e0b7e17f2420/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fd7be1-aebd-4820-baf4-e0b7e17f2420/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c117c02695ddb101583ad96117955e242a853299846ac846441a25e3775ce242 [2024-11-08 19:43:48,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:43:48,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:43:48,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:43:48,988 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:43:48,989 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:43:48,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fd7be1-aebd-4820-baf4-e0b7e17f2420/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/recursified_loop-invariants/recursified_linear-inequality-inv-b.c Unable to find full path for "g++" [2024-11-08 19:43:50,910 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:43:51,106 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:43:51,107 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fd7be1-aebd-4820-baf4-e0b7e17f2420/sv-benchmarks/c/recursified_loop-invariants/recursified_linear-inequality-inv-b.c [2024-11-08 19:43:51,118 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fd7be1-aebd-4820-baf4-e0b7e17f2420/bin/ukojak-verify-ImItNfHLgk/data/52c9ad92b/c697d0d607d94f58ba2dcfc189d175d0/FLAG9bd7ec5c0 [2024-11-08 19:43:51,140 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fd7be1-aebd-4820-baf4-e0b7e17f2420/bin/ukojak-verify-ImItNfHLgk/data/52c9ad92b/c697d0d607d94f58ba2dcfc189d175d0 [2024-11-08 19:43:51,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:43:51,144 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:43:51,147 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:43:51,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:43:51,153 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:43:51,154 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:43:51" (1/1) ... [2024-11-08 19:43:51,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c8be931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:51, skipping insertion in model container [2024-11-08 19:43:51,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:43:51" (1/1) ... [2024-11-08 19:43:51,186 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:43:51,433 WARN L250 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_15fd7be1-aebd-4820-baf4-e0b7e17f2420/sv-benchmarks/c/recursified_loop-invariants/recursified_linear-inequality-inv-b.c[1476,1489] [2024-11-08 19:43:51,438 WARN L250 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_15fd7be1-aebd-4820-baf4-e0b7e17f2420/sv-benchmarks/c/recursified_loop-invariants/recursified_linear-inequality-inv-b.c[1549,1562] [2024-11-08 19:43:51,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:43:51,448 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:43:51,467 WARN L250 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_15fd7be1-aebd-4820-baf4-e0b7e17f2420/sv-benchmarks/c/recursified_loop-invariants/recursified_linear-inequality-inv-b.c[1476,1489] [2024-11-08 19:43:51,469 WARN L250 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_15fd7be1-aebd-4820-baf4-e0b7e17f2420/sv-benchmarks/c/recursified_loop-invariants/recursified_linear-inequality-inv-b.c[1549,1562] [2024-11-08 19:43:51,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:43:51,492 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:43:51,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:51 WrapperNode [2024-11-08 19:43:51,492 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:43:51,493 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:43:51,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:43:51,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:43:51,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:51" (1/1) ... [2024-11-08 19:43:51,508 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:51" (1/1) ... [2024-11-08 19:43:51,529 INFO L138 Inliner]: procedures = 13, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 79 [2024-11-08 19:43:51,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:43:51,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:43:51,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:43:51,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:43:51,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:51" (1/1) ... [2024-11-08 19:43:51,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:51" (1/1) ... [2024-11-08 19:43:51,549 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:51" (1/1) ... [2024-11-08 19:43:51,550 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:51" (1/1) ... [2024-11-08 19:43:51,555 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:51" (1/1) ... [2024-11-08 19:43:51,557 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:51" (1/1) ... [2024-11-08 19:43:51,558 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:51" (1/1) ... [2024-11-08 19:43:51,559 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:51" (1/1) ... [2024-11-08 19:43:51,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:43:51,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:43:51,562 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:43:51,562 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:43:51,563 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:51" (1/1) ... [2024-11-08 19:43:51,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:43:51,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fd7be1-aebd-4820-baf4-e0b7e17f2420/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:43:51,629 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fd7be1-aebd-4820-baf4-e0b7e17f2420/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:43:51,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fd7be1-aebd-4820-baf4-e0b7e17f2420/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:43:51,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:43:51,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 19:43:51,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 19:43:51,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 19:43:51,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:43:51,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:43:51,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 19:43:51,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 19:43:51,656 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_12_to_15_0 [2024-11-08 19:43:51,657 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_12_to_15_0 [2024-11-08 19:43:51,735 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:43:51,738 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:43:51,918 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-08 19:43:51,918 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:43:51,949 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:43:51,949 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:43:51,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:43:51 BoogieIcfgContainer [2024-11-08 19:43:51,952 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:43:51,953 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:43:51,953 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:43:51,965 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:43:51,966 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:43:51" (1/1) ... [2024-11-08 19:43:51,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:43:52,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:43:52,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2024-11-08 19:43:52,039 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2024-11-08 19:43:52,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 19:43:52,044 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:43:52,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:43:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:43:52,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:43:52,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:43:52,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 21 states and 28 transitions. [2024-11-08 19:43:52,912 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2024-11-08 19:43:52,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 19:43:52,913 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:43:52,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:43:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:43:52,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:43:52,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:43:52,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 25 transitions. [2024-11-08 19:43:52,971 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2024-11-08 19:43:52,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 19:43:52,978 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:43:52,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:43:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:43:54,446 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 19:43:56,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:43:56,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 23 states and 33 transitions. [2024-11-08 19:43:56,081 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2024-11-08 19:43:56,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 19:43:56,082 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:43:56,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:43:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:43:56,192 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:43:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:43:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:43:56,403 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:43:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:43:56,509 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-11-08 19:43:56,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:43:56 ImpRootNode [2024-11-08 19:43:56,569 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:43:56,570 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:43:56,570 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:43:56,570 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:43:56,571 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:43:51" (3/4) ... [2024-11-08 19:43:56,573 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 19:43:56,643 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fd7be1-aebd-4820-baf4-e0b7e17f2420/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 19:43:56,646 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:43:56,647 INFO L158 Benchmark]: Toolchain (without parser) took 5503.33ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 121.7MB in the beginning and 53.3MB in the end (delta: 68.4MB). Peak memory consumption was 100.8MB. Max. memory is 16.1GB. [2024-11-08 19:43:56,648 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:43:56,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.17ms. Allocated memory is still 155.2MB. Free memory was 121.7MB in the beginning and 109.2MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 19:43:56,649 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.90ms. Allocated memory is still 155.2MB. Free memory was 109.2MB in the beginning and 107.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:43:56,649 INFO L158 Benchmark]: Boogie Preprocessor took 31.34ms. Allocated memory is still 155.2MB. Free memory was 107.2MB in the beginning and 126.2MB in the end (delta: -19.0MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2024-11-08 19:43:56,650 INFO L158 Benchmark]: RCFGBuilder took 390.33ms. Allocated memory is still 155.2MB. Free memory was 126.2MB in the beginning and 112.5MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 19:43:56,650 INFO L158 Benchmark]: CodeCheck took 4616.21ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 111.5MB in the beginning and 56.5MB in the end (delta: 55.0MB). Peak memory consumption was 89.5MB. Max. memory is 16.1GB. [2024-11-08 19:43:56,650 INFO L158 Benchmark]: Witness Printer took 76.89ms. Allocated memory is still 186.6MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:43:56,656 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 81 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 37 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 354 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 336 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 1/4 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 52]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L38] unsigned char n = __VERIFIER_nondet_uchar(); [L38] unsigned char n = __VERIFIER_nondet_uchar(); [L39] EXPR \read(n) VAL [n={19200:0}] [L39] COND FALSE !(n == 0) [L46] unsigned char v = 0; [L47] unsigned char s = 0; [L48] unsigned int i = 0; VAL [i={19199:0}, n={19200:0}, s={19197:0}, v={19198:0}] [L49] CALL func_to_recursive_line_12_to_15_0(&v, &n, &s, &i) VAL [\old(i)={19199:0}, \old(n)={19200:0}, \old(s)={19197:0}, \old(v)={19198:0}] [L22] EXPR \read(*i) [L22] EXPR \read(*n) VAL [\old(i)={19199:0}, \old(n)={19200:0}, \old(s)={19197:0}, \old(v)={19198:0}, i={19199:0}, n={19200:0}, s={19197:0}, v={19198:0}] [L22] COND TRUE (*i) < (*n) [L25] *v = __VERIFIER_nondet_uchar() [L26] EXPR \read(*s) [L26] EXPR \read(*v) [L26] *s += *v [L27] EXPR \read(*i) [L27] ++(*i) [L29] CALL func_to_recursive_line_12_to_15_0(v, n, s, i) VAL [\old(i)={19199:0}, \old(n)={19200:0}, \old(s)={19197:0}, \old(v)={19198:0}] [L22] EXPR \read(*i) [L22] EXPR \read(*n) VAL [\old(i)={19199:0}, \old(n)={19200:0}, \old(s)={19197:0}, \old(v)={19198:0}, i={19199:0}, n={19200:0}, s={19197:0}, v={19198:0}] [L22] COND TRUE (*i) < (*n) [L25] *v = __VERIFIER_nondet_uchar() [L26] EXPR \read(*s) [L26] EXPR \read(*v) [L26] *s += *v [L27] EXPR \read(*i) [L27] ++(*i) [L29] CALL func_to_recursive_line_12_to_15_0(v, n, s, i) VAL [\old(i)={19199:0}, \old(n)={19200:0}, \old(s)={19197:0}, \old(v)={19198:0}] [L22] EXPR \read(*i) [L22] EXPR \read(*n) VAL [\old(i)={19199:0}, \old(n)={19200:0}, \old(s)={19197:0}, \old(v)={19198:0}, i={19199:0}, n={19200:0}, s={19197:0}, v={19198:0}] [L22] COND FALSE !((*i) < (*n)) [L29] RET func_to_recursive_line_12_to_15_0(v, n, s, i) VAL [\old(i)={19199:0}, \old(n)={19200:0}, \old(s)={19197:0}, \old(v)={19198:0}, i={19199:0}, n={19200:0}, s={19197:0}, v={19198:0}] [L29] RET func_to_recursive_line_12_to_15_0(v, n, s, i) VAL [\old(i)={19199:0}, \old(n)={19200:0}, \old(s)={19197:0}, \old(v)={19198:0}, i={19199:0}, n={19200:0}, s={19197:0}, v={19198:0}] [L49] RET func_to_recursive_line_12_to_15_0(&v, &n, &s, &i) VAL [i={19199:0}, n={19200:0}, s={19197:0}, v={19198:0}] [L50] EXPR \read(s) [L50] EXPR \read(v) VAL [i={19199:0}, n={19200:0}, s={19197:0}] [L50] COND TRUE s < v [L52] reach_error() VAL [i={19199:0}, n={19200:0}, s={19197:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.17ms. Allocated memory is still 155.2MB. Free memory was 121.7MB in the beginning and 109.2MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.90ms. Allocated memory is still 155.2MB. Free memory was 109.2MB in the beginning and 107.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.34ms. Allocated memory is still 155.2MB. Free memory was 107.2MB in the beginning and 126.2MB in the end (delta: -19.0MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * RCFGBuilder took 390.33ms. Allocated memory is still 155.2MB. Free memory was 126.2MB in the beginning and 112.5MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 4616.21ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 111.5MB in the beginning and 56.5MB in the end (delta: 55.0MB). Peak memory consumption was 89.5MB. Max. memory is 16.1GB. * Witness Printer took 76.89ms. Allocated memory is still 186.6MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-08 19:43:56,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fd7be1-aebd-4820-baf4-e0b7e17f2420/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE