./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/elimination_max_rec.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_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/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_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max_rec.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/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_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/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 1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:50:52,313 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:50:52,407 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 22:50:52,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:50:52,416 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:50:52,448 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:50:52,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:50:52,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:50:52,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:50:52,452 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:50:52,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:50:52,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:50:52,453 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:50:52,455 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:50:52,455 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:50:52,456 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:50:52,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:50:52,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:50:52,457 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:50:52,457 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:50:52,457 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:50:52,461 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:50:52,461 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:50:52,462 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:50:52,462 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:50:52,462 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:50:52,462 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:50:52,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:50:52,463 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:50:52,463 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:50:52,464 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:50:52,464 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:50:52,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:50:52,464 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_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a [2024-11-08 22:50:52,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:50:52,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:50:52,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:50:52,819 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:50:52,819 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:50:52,820 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/verifythis/elimination_max_rec.c Unable to find full path for "g++" [2024-11-08 22:50:54,810 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:50:55,052 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:50:55,053 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/sv-benchmarks/c/verifythis/elimination_max_rec.c [2024-11-08 22:50:55,063 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/bin/ukojak-verify-ImItNfHLgk/data/71c21c316/70fb55f257ce492ea8ab26fa675dc57b/FLAGfafacbdb1 [2024-11-08 22:50:55,386 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/bin/ukojak-verify-ImItNfHLgk/data/71c21c316/70fb55f257ce492ea8ab26fa675dc57b [2024-11-08 22:50:55,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:50:55,390 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:50:55,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:50:55,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:50:55,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:50:55,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:50:55" (1/1) ... [2024-11-08 22:50:55,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30b9d4fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:55, skipping insertion in model container [2024-11-08 22:50:55,399 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:50:55" (1/1) ... [2024-11-08 22:50:55,420 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:50:55,583 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_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/sv-benchmarks/c/verifythis/elimination_max_rec.c[493,506] [2024-11-08 22:50:55,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:50:55,612 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:50:55,625 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_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/sv-benchmarks/c/verifythis/elimination_max_rec.c[493,506] [2024-11-08 22:50:55,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:50:55,651 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:50:55,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:55 WrapperNode [2024-11-08 22:50:55,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:50:55,652 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:50:55,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:50:55,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:50:55,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:55" (1/1) ... [2024-11-08 22:50:55,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:55" (1/1) ... [2024-11-08 22:50:55,685 INFO L138 Inliner]: procedures = 19, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2024-11-08 22:50:55,686 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:50:55,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:50:55,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:50:55,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:50:55,696 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:55" (1/1) ... [2024-11-08 22:50:55,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:55" (1/1) ... [2024-11-08 22:50:55,699 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:55" (1/1) ... [2024-11-08 22:50:55,699 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:55" (1/1) ... [2024-11-08 22:50:55,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:55" (1/1) ... [2024-11-08 22:50:55,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:55" (1/1) ... [2024-11-08 22:50:55,709 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:55" (1/1) ... [2024-11-08 22:50:55,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:55" (1/1) ... [2024-11-08 22:50:55,713 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:50:55,714 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:50:55,714 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:50:55,714 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:50:55,715 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:55" (1/1) ... [2024-11-08 22:50:55,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:50:55,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:50:55,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:50:55,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:50:55,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:50:55,784 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 22:50:55,785 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 22:50:55,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:50:55,785 INFO L130 BoogieDeclarations]: Found specification of procedure check [2024-11-08 22:50:55,785 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2024-11-08 22:50:55,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 22:50:55,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:50:55,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:50:55,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 22:50:55,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 22:50:55,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 22:50:55,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 22:50:55,867 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:50:55,870 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:50:56,073 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-08 22:50:56,073 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:50:56,139 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:50:56,139 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:50:56,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:50:56 BoogieIcfgContainer [2024-11-08 22:50:56,140 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:50:56,141 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:50:56,141 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:50:56,152 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:50:56,152 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:50:56" (1/1) ... [2024-11-08 22:50:56,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:50:56,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:56,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 26 states and 30 transitions. [2024-11-08 22:50:56,217 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2024-11-08 22:50:56,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 22:50:56,221 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:56,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:56,740 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 22:50:56,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:56,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2024-11-08 22:50:56,992 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2024-11-08 22:50:56,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-08 22:50:56,994 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:56,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:57,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:57,772 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:50:58,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:58,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 39 states and 52 transitions. [2024-11-08 22:50:58,491 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2024-11-08 22:50:58,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-08 22:50:58,493 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:58,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:58,875 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 22:50:59,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:59,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 47 states and 68 transitions. [2024-11-08 22:50:59,480 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2024-11-08 22:50:59,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 22:50:59,482 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:59,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:51:00,243 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 22:51:00,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:51:00,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 51 states and 75 transitions. [2024-11-08 22:51:00,926 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 75 transitions. [2024-11-08 22:51:00,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-08 22:51:00,928 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:51:00,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:51:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:51:01,254 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-08 22:51:01,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:51:01,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 28 states and 33 transitions. [2024-11-08 22:51:01,693 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2024-11-08 22:51:01,694 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 22:51:01,694 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2024-11-08 22:51:01,703 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-08 22:51:01,781 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-08 22:51:01,781 INFO L77 FloydHoareUtils]: At program point L46(line 46) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) [2024-11-08 22:51:01,782 INFO L77 FloydHoareUtils]: At program point L46-1(line 46) the Hoare annotation is: true [2024-11-08 22:51:01,782 INFO L77 FloydHoareUtils]: At program point L44(line 44) the Hoare annotation is: true [2024-11-08 22:51:01,782 INFO L77 FloydHoareUtils]: At program point L44-1(line 44) the Hoare annotation is: true [2024-11-08 22:51:01,782 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-08 22:51:01,782 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2024-11-08 22:51:01,782 INFO L77 FloydHoareUtils]: At program point assume_abort_if_notEXIT(lines 7 9) the Hoare annotation is: true [2024-11-08 22:51:01,783 INFO L77 FloydHoareUtils]: At program point L33(line 33) the Hoare annotation is: true [2024-11-08 22:51:01,783 INFO L77 FloydHoareUtils]: At program point L33-1(line 33) the Hoare annotation is: true [2024-11-08 22:51:01,783 INFO L77 FloydHoareUtils]: At program point L28(line 28) the Hoare annotation is: true [2024-11-08 22:51:01,783 INFO L77 FloydHoareUtils]: At program point L25-2(lines 25 26) the Hoare annotation is: true [2024-11-08 22:51:01,783 INFO L77 FloydHoareUtils]: At program point L20(line 20) the Hoare annotation is: true [2024-11-08 22:51:01,783 INFO L77 FloydHoareUtils]: At program point L20-1(line 20) the Hoare annotation is: true [2024-11-08 22:51:01,784 INFO L77 FloydHoareUtils]: At program point checkEXIT(lines 16 39) the Hoare annotation is: true [2024-11-08 22:51:01,784 INFO L77 FloydHoareUtils]: At program point L17(line 17) the Hoare annotation is: true [2024-11-08 22:51:01,784 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 16 39) the Hoare annotation is: true [2024-11-08 22:51:01,784 INFO L77 FloydHoareUtils]: At program point checkFINAL(lines 16 39) the Hoare annotation is: true [2024-11-08 22:51:01,784 INFO L77 FloydHoareUtils]: At program point L36(line 36) the Hoare annotation is: true [2024-11-08 22:51:01,785 INFO L77 FloydHoareUtils]: At program point L36-1(line 36) the Hoare annotation is: true [2024-11-08 22:51:01,785 INFO L77 FloydHoareUtils]: At program point L11(line 11) the Hoare annotation is: true [2024-11-08 22:51:01,785 INFO L77 FloydHoareUtils]: At program point L11-1(line 11) the Hoare annotation is: true [2024-11-08 22:51:01,785 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 10 12) the Hoare annotation is: true [2024-11-08 22:51:01,785 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 10 12) the Hoare annotation is: true [2024-11-08 22:51:01,786 INFO L77 FloydHoareUtils]: At program point L11-3(lines 10 12) the Hoare annotation is: true [2024-11-08 22:51:01,786 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) the Hoare annotation is: true [2024-11-08 22:51:01,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:51:01 ImpRootNode [2024-11-08 22:51:01,802 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:51:01,803 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:51:01,803 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:51:01,803 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:51:01,804 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:50:56" (3/4) ... [2024-11-08 22:51:01,807 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 22:51:01,810 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-08 22:51:01,811 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure check [2024-11-08 22:51:01,811 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-08 22:51:01,815 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2024-11-08 22:51:01,816 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 22:51:01,816 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 22:51:01,816 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 22:51:01,895 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 22:51:01,896 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-08 22:51:01,896 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:51:01,897 INFO L158 Benchmark]: Toolchain (without parser) took 6507.02ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 121.5MB in the beginning and 68.8MB in the end (delta: 52.7MB). Peak memory consumption was 88.8MB. Max. memory is 16.1GB. [2024-11-08 22:51:01,897 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:51:01,897 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.65ms. Allocated memory is still 153.1MB. Free memory was 121.5MB in the beginning and 108.7MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 22:51:01,898 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.77ms. Allocated memory is still 153.1MB. Free memory was 108.7MB in the beginning and 107.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:51:01,898 INFO L158 Benchmark]: Boogie Preprocessor took 26.62ms. Allocated memory is still 153.1MB. Free memory was 107.2MB in the beginning and 105.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:51:01,899 INFO L158 Benchmark]: RCFGBuilder took 426.28ms. Allocated memory is still 153.1MB. Free memory was 105.6MB in the beginning and 90.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 22:51:01,899 INFO L158 Benchmark]: CodeCheck took 5661.66ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 90.4MB in the beginning and 74.0MB in the end (delta: 16.4MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. [2024-11-08 22:51:01,900 INFO L158 Benchmark]: Witness Printer took 93.14ms. Allocated memory is still 186.6MB. Free memory was 74.0MB in the beginning and 68.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 22:51:01,901 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 4 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 225 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 131 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 159 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 505 IncrementalHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 159 mSolverCounterUnsat, 125 mSDtfsCounter, 505 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1039 GetRequests, 960 SyntacticMatches, 17 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1316 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 744 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 49/71 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: 11]: 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 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.65ms. Allocated memory is still 153.1MB. Free memory was 121.5MB in the beginning and 108.7MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.77ms. Allocated memory is still 153.1MB. Free memory was 108.7MB in the beginning and 107.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.62ms. Allocated memory is still 153.1MB. Free memory was 107.2MB in the beginning and 105.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 426.28ms. Allocated memory is still 153.1MB. Free memory was 105.6MB in the beginning and 90.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 5661.66ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 90.4MB in the beginning and 74.0MB in the end (delta: 16.4MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. * Witness Printer took 93.14ms. Allocated memory is still 186.6MB. Free memory was 74.0MB in the beginning and 68.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-08 22:51:01,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc4cc1-5ec0-4c10-8eec-979f3fdf1305/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 Result: TRUE