./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id2_i5_o5-2.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_d4d8ee31-5191-4d85-8558-b813e496f01c/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4d8ee31-5191-4d85-8558-b813e496f01c/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_d4d8ee31-5191-4d85-8558-b813e496f01c/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4d8ee31-5191-4d85-8558-b813e496f01c/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4d8ee31-5191-4d85-8558-b813e496f01c/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_d4d8ee31-5191-4d85-8558-b813e496f01c/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 9c0fb6a0d32b99c9a776859d2bc15d9177dc584955a2c1baa8ac133e976f40f7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:37:53,054 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:37:53,148 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4d8ee31-5191-4d85-8558-b813e496f01c/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 19:37:53,153 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:37:53,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 19:37:53,187 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:37:53,188 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:37:53,189 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:37:53,190 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:37:53,190 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:37:53,191 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:37:53,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:37:53,191 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:37:53,192 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:37:53,192 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:37:53,193 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:37:53,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:37:53,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:37:53,194 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:37:53,194 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:37:53,195 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:37:53,195 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:37:53,196 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:37:53,209 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:37:53,210 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:37:53,210 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:37:53,211 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:37:53,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:37:53,212 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:37:53,212 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:37:53,212 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:37:53,213 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 19:37:53,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:37:53,213 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_d4d8ee31-5191-4d85-8558-b813e496f01c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4d8ee31-5191-4d85-8558-b813e496f01c/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c0fb6a0d32b99c9a776859d2bc15d9177dc584955a2c1baa8ac133e976f40f7 [2024-11-08 19:37:53,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:37:53,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:37:53,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:37:53,490 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:37:53,493 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:37:53,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4d8ee31-5191-4d85-8558-b813e496f01c/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c Unable to find full path for "g++" [2024-11-08 19:37:55,630 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:37:55,847 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:37:55,848 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4d8ee31-5191-4d85-8558-b813e496f01c/sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c [2024-11-08 19:37:55,861 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4d8ee31-5191-4d85-8558-b813e496f01c/bin/ukojak-verify-ImItNfHLgk/data/5675a69f7/ef32f54fe8484a42ac1c262e4f93e8a5/FLAGc6e8d3d53 [2024-11-08 19:37:56,212 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4d8ee31-5191-4d85-8558-b813e496f01c/bin/ukojak-verify-ImItNfHLgk/data/5675a69f7/ef32f54fe8484a42ac1c262e4f93e8a5 [2024-11-08 19:37:56,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:37:56,217 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:37:56,220 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:37:56,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:37:56,229 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:37:56,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:37:56" (1/1) ... [2024-11-08 19:37:56,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@365355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:56, skipping insertion in model container [2024-11-08 19:37:56,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:37:56" (1/1) ... [2024-11-08 19:37:56,263 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:37:56,459 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_d4d8ee31-5191-4d85-8558-b813e496f01c/sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c[548,561] [2024-11-08 19:37:56,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:37:56,477 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:37:56,492 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_d4d8ee31-5191-4d85-8558-b813e496f01c/sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c[548,561] [2024-11-08 19:37:56,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:37:56,513 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:37:56,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:56 WrapperNode [2024-11-08 19:37:56,513 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:37:56,514 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:37:56,515 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:37:56,515 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:37:56,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:56" (1/1) ... [2024-11-08 19:37:56,530 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:56" (1/1) ... [2024-11-08 19:37:56,549 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2024-11-08 19:37:56,549 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:37:56,550 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:37:56,550 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:37:56,550 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:37:56,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:56" (1/1) ... [2024-11-08 19:37:56,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:56" (1/1) ... [2024-11-08 19:37:56,562 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:56" (1/1) ... [2024-11-08 19:37:56,563 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:56" (1/1) ... [2024-11-08 19:37:56,566 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:56" (1/1) ... [2024-11-08 19:37:56,567 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:56" (1/1) ... [2024-11-08 19:37:56,568 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:56" (1/1) ... [2024-11-08 19:37:56,569 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:56" (1/1) ... [2024-11-08 19:37:56,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:37:56,577 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:37:56,577 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:37:56,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:37:56,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:56" (1/1) ... [2024-11-08 19:37:56,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:37:56,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4d8ee31-5191-4d85-8558-b813e496f01c/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:37:56,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4d8ee31-5191-4d85-8558-b813e496f01c/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:37:56,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4d8ee31-5191-4d85-8558-b813e496f01c/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:37:56,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:37:56,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 19:37:56,669 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2024-11-08 19:37:56,670 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2024-11-08 19:37:56,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:37:56,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:37:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-11-08 19:37:56,672 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-11-08 19:37:56,772 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:37:56,775 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:37:56,970 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-08 19:37:56,971 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:37:57,002 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:37:57,003 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:37:57,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:37:57 BoogieIcfgContainer [2024-11-08 19:37:57,005 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:37:57,006 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:37:57,006 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:37:57,022 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:37:57,022 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:37:57" (1/1) ... [2024-11-08 19:37:57,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:37:57,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:37:57,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2024-11-08 19:37:57,135 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2024-11-08 19:37:57,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 19:37:57,142 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:37:57,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:37:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:37:57,419 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 19:37:57,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:37:57,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 25 transitions. [2024-11-08 19:37:57,520 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-11-08 19:37:57,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 19:37:57,521 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:37:57,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:37:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:37:57,794 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 19:37:58,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:37:58,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 32 transitions. [2024-11-08 19:37:58,023 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2024-11-08 19:37:58,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-08 19:37:58,024 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:37:58,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:37:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:37:58,298 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 19:37:58,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:37:58,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 33 states and 43 transitions. [2024-11-08 19:37:58,582 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2024-11-08 19:37:58,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-08 19:37:58,583 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:37:58,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:37:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:37:58,810 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 19:37:59,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:37:59,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 39 states and 56 transitions. [2024-11-08 19:37:59,094 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 56 transitions. [2024-11-08 19:37:59,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-08 19:37:59,095 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:37:59,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:37:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:37:59,291 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 19:37:59,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:37:59,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 45 states and 71 transitions. [2024-11-08 19:37:59,606 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 71 transitions. [2024-11-08 19:37:59,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-08 19:37:59,607 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:37:59,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:37:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:38:00,318 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-08 19:38:03,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:38:03,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 64 states and 117 transitions. [2024-11-08 19:38:03,573 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 117 transitions. [2024-11-08 19:38:03,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-08 19:38:03,575 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:38:03,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:38:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:38:04,205 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 19:38:07,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:38:07,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 73 states and 83 transitions. [2024-11-08 19:38:07,259 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2024-11-08 19:38:07,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-08 19:38:07,262 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:38:07,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:38:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:38:07,819 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-08 19:38:08,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:38:08,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 49 states and 53 transitions. [2024-11-08 19:38:08,636 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2024-11-08 19:38:08,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 19:38:08,637 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2024-11-08 19:38:08,645 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-08 19:38:08,738 INFO L77 FloydHoareUtils]: At program point L16(line 16) the Hoare annotation is: (and (<= id2_~x |id2_#in~x|) (<= |id2_#in~x| id2_~x)) [2024-11-08 19:38:08,739 INFO L77 FloydHoareUtils]: At program point L15(line 15) the Hoare annotation is: (and (<= id2_~x |id2_#in~x|) (<= |id2_#in~x| id2_~x)) [2024-11-08 19:38:08,739 INFO L77 FloydHoareUtils]: At program point L16-1(line 16) the Hoare annotation is: true [2024-11-08 19:38:08,739 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 14 17) the Hoare annotation is: true [2024-11-08 19:38:08,739 INFO L77 FloydHoareUtils]: At program point id2EXIT(lines 14 17) the Hoare annotation is: true [2024-11-08 19:38:08,739 INFO L77 FloydHoareUtils]: At program point id2FINAL(lines 14 17) the Hoare annotation is: true [2024-11-08 19:38:08,740 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-08 19:38:08,740 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 23) the Hoare annotation is: true [2024-11-08 19:38:08,740 INFO L77 FloydHoareUtils]: At program point L23(line 23) the Hoare annotation is: true [2024-11-08 19:38:08,740 INFO L77 FloydHoareUtils]: At program point L22(lines 22 24) the Hoare annotation is: true [2024-11-08 19:38:08,740 INFO L77 FloydHoareUtils]: At program point L21(line 21) the Hoare annotation is: (and (<= 5 |ULTIMATE.start_main_~input~0#1|) (<= |ULTIMATE.start_main_~input~0#1| 5)) [2024-11-08 19:38:08,741 INFO L77 FloydHoareUtils]: At program point L21-1(line 21) the Hoare annotation is: true [2024-11-08 19:38:08,741 INFO L77 FloydHoareUtils]: At program point L19(lines 19 25) the Hoare annotation is: true [2024-11-08 19:38:08,741 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-08 19:38:08,741 INFO L77 FloydHoareUtils]: At program point idFINAL(lines 9 12) the Hoare annotation is: true [2024-11-08 19:38:08,741 INFO L77 FloydHoareUtils]: At program point L11(line 11) the Hoare annotation is: (and (<= id_~x |id_#in~x|) (<= |id_#in~x| id_~x)) [2024-11-08 19:38:08,741 INFO L77 FloydHoareUtils]: At program point idEXIT(lines 9 12) the Hoare annotation is: true [2024-11-08 19:38:08,742 INFO L77 FloydHoareUtils]: At program point L10(line 10) the Hoare annotation is: (and (<= id_~x |id_#in~x|) (<= |id_#in~x| id_~x)) [2024-11-08 19:38:08,742 INFO L77 FloydHoareUtils]: At program point L11-1(line 11) the Hoare annotation is: true [2024-11-08 19:38:08,742 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 9 12) the Hoare annotation is: true [2024-11-08 19:38:08,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:38:08 ImpRootNode [2024-11-08 19:38:08,754 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:38:08,754 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:38:08,754 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:38:08,755 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:38:08,755 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:37:57" (3/4) ... [2024-11-08 19:38:08,758 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 19:38:08,762 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2024-11-08 19:38:08,762 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2024-11-08 19:38:08,766 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-08 19:38:08,766 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 19:38:08,766 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 19:38:08,766 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 19:38:08,852 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4d8ee31-5191-4d85-8558-b813e496f01c/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 19:38:08,852 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4d8ee31-5191-4d85-8558-b813e496f01c/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-08 19:38:08,852 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:38:08,853 INFO L158 Benchmark]: Toolchain (without parser) took 12636.25ms. Allocated memory was 176.2MB in the beginning and 222.3MB in the end (delta: 46.1MB). Free memory was 136.5MB in the beginning and 74.2MB in the end (delta: 62.3MB). Peak memory consumption was 109.0MB. Max. memory is 16.1GB. [2024-11-08 19:38:08,854 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 176.2MB. Free memory was 145.2MB in the beginning and 145.1MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:38:08,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.64ms. Allocated memory is still 176.2MB. Free memory was 136.5MB in the beginning and 124.5MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 19:38:08,855 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.83ms. Allocated memory is still 176.2MB. Free memory was 124.5MB in the beginning and 122.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:38:08,855 INFO L158 Benchmark]: Boogie Preprocessor took 26.26ms. Allocated memory is still 176.2MB. Free memory was 122.8MB in the beginning and 121.8MB in the end (delta: 955.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:38:08,856 INFO L158 Benchmark]: RCFGBuilder took 428.43ms. Allocated memory is still 176.2MB. Free memory was 121.8MB in the beginning and 111.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 19:38:08,856 INFO L158 Benchmark]: CodeCheck took 11747.49ms. Allocated memory was 176.2MB in the beginning and 222.3MB in the end (delta: 46.1MB). Free memory was 111.3MB in the beginning and 78.4MB in the end (delta: 33.0MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2024-11-08 19:38:08,857 INFO L158 Benchmark]: Witness Printer took 98.25ms. Allocated memory is still 222.3MB. Free memory was 78.4MB in the beginning and 74.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:38:08,859 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.6s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 548 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 283 mSDsluCounter, 640 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 471 mSDsCounter, 529 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2043 IncrementalHoareTripleChecker+Invalid, 2572 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 529 mSolverCounterUnsat, 169 mSDtfsCounter, 2043 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2773 GetRequests, 2519 SyntacticMatches, 96 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8856 ImplicationChecksByTransitivity, 8.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 240 NumberOfCodeBlocks, 240 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 232 ConstructedInterpolants, 0 QuantifiedInterpolants, 556 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 147/180 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: 23]: 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 0.36ms. Allocated memory is still 176.2MB. Free memory was 145.2MB in the beginning and 145.1MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.64ms. Allocated memory is still 176.2MB. Free memory was 136.5MB in the beginning and 124.5MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.83ms. Allocated memory is still 176.2MB. Free memory was 124.5MB in the beginning and 122.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.26ms. Allocated memory is still 176.2MB. Free memory was 122.8MB in the beginning and 121.8MB in the end (delta: 955.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 428.43ms. Allocated memory is still 176.2MB. Free memory was 121.8MB in the beginning and 111.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 11747.49ms. Allocated memory was 176.2MB in the beginning and 222.3MB in the end (delta: 46.1MB). Free memory was 111.3MB in the beginning and 78.4MB in the end (delta: 33.0MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. * Witness Printer took 98.25ms. Allocated memory is still 222.3MB. Free memory was 78.4MB in the beginning and 74.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-08 19:38:08,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4d8ee31-5191-4d85-8558-b813e496f01c/bin/ukojak-verify-ImItNfHLgk/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