./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff29e55-6a04-47e4-84b2-8fcd90af7479/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff29e55-6a04-47e4-84b2-8fcd90af7479/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff29e55-6a04-47e4-84b2-8fcd90af7479/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff29e55-6a04-47e4-84b2-8fcd90af7479/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff29e55-6a04-47e4-84b2-8fcd90af7479/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff29e55-6a04-47e4-84b2-8fcd90af7479/bin/ukojak-verify-EEHR8qb7sm --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 5a6f0ceb44f91fbf2c30fb7a6cf4ec4645c0e639d55219bc8a5d1521d1ed7589 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:59:14,395 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:59:14,494 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff29e55-6a04-47e4-84b2-8fcd90af7479/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 20:59:14,500 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 20:59:14,501 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 20:59:14,525 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:59:14,526 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:59:14,526 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:59:14,527 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:59:14,527 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:59:14,527 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:59:14,527 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:59:14,528 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 20:59:14,528 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 20:59:14,528 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 20:59:14,528 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:59:14,528 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:59:14,528 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:59:14,529 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:59:14,529 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:59:14,529 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 20:59:14,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:59:14,529 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:59:14,529 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:59:14,530 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:59:14,530 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:59:14,530 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:59:14,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:59:14,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:59:14,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:59:14,531 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:59:14,531 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 20:59:14,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 20:59:14,531 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_0ff29e55-6a04-47e4-84b2-8fcd90af7479/bin/ukojak-verify-EEHR8qb7sm 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 -> 5a6f0ceb44f91fbf2c30fb7a6cf4ec4645c0e639d55219bc8a5d1521d1ed7589 [2024-11-13 20:59:14,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:59:14,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:59:14,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:59:14,852 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:59:14,852 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:59:14,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff29e55-6a04-47e4-84b2-8fcd90af7479/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c Unable to find full path for "g++" [2024-11-13 20:59:16,915 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:59:17,214 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:59:17,216 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff29e55-6a04-47e4-84b2-8fcd90af7479/sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c [2024-11-13 20:59:17,242 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff29e55-6a04-47e4-84b2-8fcd90af7479/bin/ukojak-verify-EEHR8qb7sm/data/049b28b51/c1fda27112884af991b7cef9a513a837/FLAGcb2152af8 [2024-11-13 20:59:17,502 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff29e55-6a04-47e4-84b2-8fcd90af7479/bin/ukojak-verify-EEHR8qb7sm/data/049b28b51/c1fda27112884af991b7cef9a513a837 [2024-11-13 20:59:17,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:59:17,510 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:59:17,513 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:59:17,513 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:59:17,521 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:59:17,523 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:59:17" (1/1) ... [2024-11-13 20:59:17,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a6bd246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:59:17, skipping insertion in model container [2024-11-13 20:59:17,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:59:17" (1/1) ... [2024-11-13 20:59:17,546 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:59:17,710 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_0ff29e55-6a04-47e4-84b2-8fcd90af7479/sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c[548,561] [2024-11-13 20:59:17,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:59:17,727 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:59:17,743 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_0ff29e55-6a04-47e4-84b2-8fcd90af7479/sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c[548,561] [2024-11-13 20:59:17,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:59:17,763 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:59:17,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:59:17 WrapperNode [2024-11-13 20:59:17,764 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:59:17,765 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:59:17,765 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:59:17,765 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:59:17,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:59:17" (1/1) ... [2024-11-13 20:59:17,781 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:59:17" (1/1) ... [2024-11-13 20:59:17,797 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2024-11-13 20:59:17,797 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:59:17,798 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:59:17,798 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:59:17,798 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:59:17,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:59:17" (1/1) ... [2024-11-13 20:59:17,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:59:17" (1/1) ... [2024-11-13 20:59:17,807 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:59:17" (1/1) ... [2024-11-13 20:59:17,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:59:17" (1/1) ... [2024-11-13 20:59:17,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:59:17" (1/1) ... [2024-11-13 20:59:17,811 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:59:17" (1/1) ... [2024-11-13 20:59:17,812 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:59:17" (1/1) ... [2024-11-13 20:59:17,813 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:59:17" (1/1) ... [2024-11-13 20:59:17,814 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:59:17,815 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:59:17,815 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:59:17,815 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:59:17,816 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:59:17" (1/1) ... [2024-11-13 20:59:17,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:59:17,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff29e55-6a04-47e4-84b2-8fcd90af7479/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:59:17,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff29e55-6a04-47e4-84b2-8fcd90af7479/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:59:17,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff29e55-6a04-47e4-84b2-8fcd90af7479/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:59:17,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:59:17,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 20:59:17,881 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2024-11-13 20:59:17,881 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2024-11-13 20:59:17,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:59:17,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:59:17,882 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-11-13 20:59:17,882 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-11-13 20:59:17,950 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:59:17,952 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:59:18,072 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-13 20:59:18,073 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:59:18,095 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:59:18,095 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 20:59:18,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:59:18 BoogieIcfgContainer [2024-11-13 20:59:18,096 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:59:18,097 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:59:18,097 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:59:18,109 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:59:18,109 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:59:18" (1/1) ... [2024-11-13 20:59:18,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:59:18,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:59:18,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2024-11-13 20:59:18,194 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2024-11-13 20:59:18,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 20:59:18,200 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:59:18,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:59:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:59:18,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:59:18,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:59:18,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2024-11-13 20:59:18,662 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-11-13 20:59:18,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 20:59:18,664 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:59:18,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:59:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:59:18,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:59:19,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:59:19,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 29 states and 36 transitions. [2024-11-13 20:59:19,372 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2024-11-13 20:59:19,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 20:59:19,373 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:59:19,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:59:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:59:19,582 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 20:59:20,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:59:20,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 37 states and 52 transitions. [2024-11-13 20:59:20,287 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2024-11-13 20:59:20,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 20:59:20,289 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:59:20,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:59:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:59:20,527 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 20:59:21,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:59:21,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 43 states and 67 transitions. [2024-11-13 20:59:21,073 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 67 transitions. [2024-11-13 20:59:21,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 20:59:21,075 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:59:21,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:59:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:59:21,208 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 20:59:21,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:59:21,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 45 states and 70 transitions. [2024-11-13 20:59:21,425 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 70 transitions. [2024-11-13 20:59:21,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 20:59:21,426 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:59:21,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:59:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:59:21,716 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 20:59:22,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:59:22,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 51 states and 87 transitions. [2024-11-13 20:59:22,293 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 87 transitions. [2024-11-13 20:59:22,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 20:59:22,296 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:59:22,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:59:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:59:22,507 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 20:59:22,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:59:22,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 53 states and 91 transitions. [2024-11-13 20:59:22,761 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 91 transitions. [2024-11-13 20:59:22,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-13 20:59:22,764 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:59:22,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:59:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:59:22,789 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:59:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:59:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:59:22,870 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:59:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:59:22,911 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2024-11-13 20:59:22,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:59:22 ImpRootNode [2024-11-13 20:59:22,946 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:59:22,948 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:59:22,948 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:59:22,948 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:59:22,949 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:59:18" (3/4) ... [2024-11-13 20:59:22,951 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 20:59:23,003 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff29e55-6a04-47e4-84b2-8fcd90af7479/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 20:59:23,005 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:59:23,008 INFO L158 Benchmark]: Toolchain (without parser) took 5496.69ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 78.1MB in the end (delta: 40.6MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. [2024-11-13 20:59:23,009 INFO L158 Benchmark]: CDTParser took 1.56ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:59:23,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.30ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 108.1MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:59:23,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.34ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 107.0MB in the end (delta: 845.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:59:23,010 INFO L158 Benchmark]: Boogie Preprocessor took 16.20ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 106.4MB in the end (delta: 566.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:59:23,014 INFO L158 Benchmark]: RCFGBuilder took 281.19ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 96.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:59:23,015 INFO L158 Benchmark]: CodeCheck took 4849.54ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 80.4MB in the end (delta: 15.5MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2024-11-13 20:59:23,015 INFO L158 Benchmark]: Witness Printer took 57.28ms. Allocated memory is still 142.6MB. Free memory was 80.4MB in the beginning and 78.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:59:23,017 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: 4.8s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 413 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 204 mSDsluCounter, 400 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 235 mSDsCounter, 200 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1018 IncrementalHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 200 mSolverCounterUnsat, 165 mSDtfsCounter, 1018 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1763 GetRequests, 1618 SyntacticMatches, 75 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1226 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 384 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 32/64 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: 23]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L20] int input = 5; VAL [input=5] [L21] CALL, EXPR id(input) VAL [\old(x)=5] [L10] COND FALSE !(x==0) VAL [\old(x)=5, x=5] [L11] CALL, EXPR id2(x-1) VAL [\old(x)=4] [L15] COND FALSE !(x==0) VAL [\old(x)=4, x=4] [L16] CALL, EXPR id(x-1) VAL [\old(x)=3] [L10] COND FALSE !(x==0) VAL [\old(x)=3, x=3] [L11] CALL, EXPR id2(x-1) VAL [\old(x)=2] [L15] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L16] CALL, EXPR id(x-1) VAL [\old(x)=1] [L10] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L11] CALL, EXPR id2(x-1) VAL [\old(x)=0] [L15] COND TRUE x==0 [L15] return 0; VAL [\old(x)=0, \result=0] [L11] RET, EXPR id2(x-1) VAL [\old(x)=1, x=1] [L11] return id2(x-1) + 1; [L16] RET, EXPR id(x-1) VAL [\old(x)=2, x=2] [L16] return id(x-1) + 1; [L11] RET, EXPR id2(x-1) VAL [\old(x)=3, x=3] [L11] return id2(x-1) + 1; [L16] RET, EXPR id(x-1) VAL [\old(x)=4, x=4] [L16] return id(x-1) + 1; [L11] RET, EXPR id2(x-1) VAL [\old(x)=5, x=5] [L11] return id2(x-1) + 1; [L21] RET, EXPR id(input) VAL [input=5] [L21] int result = id(input); [L22] COND TRUE result == 5 VAL [input=5] [L23] reach_error() VAL [input=5] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.56ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.30ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 108.1MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.34ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 107.0MB in the end (delta: 845.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.20ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 106.4MB in the end (delta: 566.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 281.19ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 96.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 4849.54ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 80.4MB in the end (delta: 15.5MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * Witness Printer took 57.28ms. Allocated memory is still 142.6MB. Free memory was 80.4MB in the beginning and 78.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 20:59:23,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff29e55-6a04-47e4-84b2-8fcd90af7479/bin/ukojak-verify-EEHR8qb7sm/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