./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i --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_c9763628-7f4e-46d2-a53a-46a3aecec71e/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9763628-7f4e-46d2-a53a-46a3aecec71e/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_c9763628-7f4e-46d2-a53a-46a3aecec71e/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9763628-7f4e-46d2-a53a-46a3aecec71e/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9763628-7f4e-46d2-a53a-46a3aecec71e/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_c9763628-7f4e-46d2-a53a-46a3aecec71e/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 724878768076b8192fcddec982755d081255c76c80e1e283d808e6a7ebb222b9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:52:05,551 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:52:05,648 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9763628-7f4e-46d2-a53a-46a3aecec71e/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 20:52:05,657 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 20:52:05,657 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 20:52:05,683 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:52:05,684 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:52:05,685 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:52:05,685 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:52:05,685 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:52:05,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:52:05,686 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:52:05,686 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 20:52:05,686 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 20:52:05,686 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 20:52:05,686 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:52:05,686 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:52:05,686 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:52:05,686 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:52:05,687 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:52:05,687 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 20:52:05,687 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:52:05,687 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:52:05,687 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:52:05,687 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:52:05,687 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:52:05,688 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:52:05,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:52:05,688 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:52:05,688 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:52:05,688 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:52:05,688 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 20:52:05,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 20:52:05,689 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_c9763628-7f4e-46d2-a53a-46a3aecec71e/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 -> 724878768076b8192fcddec982755d081255c76c80e1e283d808e6a7ebb222b9 [2024-11-13 20:52:06,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:52:06,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:52:06,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:52:06,034 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:52:06,035 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:52:06,036 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9763628-7f4e-46d2-a53a-46a3aecec71e/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i Unable to find full path for "g++" [2024-11-13 20:52:08,009 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:52:08,312 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:52:08,316 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9763628-7f4e-46d2-a53a-46a3aecec71e/sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i [2024-11-13 20:52:08,338 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9763628-7f4e-46d2-a53a-46a3aecec71e/bin/ukojak-verify-EEHR8qb7sm/data/b520ebcc5/55dfc9349e7e43d5b2bbfcba914d739c/FLAGacc23ab0a [2024-11-13 20:52:08,369 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9763628-7f4e-46d2-a53a-46a3aecec71e/bin/ukojak-verify-EEHR8qb7sm/data/b520ebcc5/55dfc9349e7e43d5b2bbfcba914d739c [2024-11-13 20:52:08,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:52:08,379 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:52:08,380 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:52:08,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:52:08,386 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:52:08,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:52:08" (1/1) ... [2024-11-13 20:52:08,391 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45c917fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:52:08, skipping insertion in model container [2024-11-13 20:52:08,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:52:08" (1/1) ... [2024-11-13 20:52:08,448 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:52:08,953 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_c9763628-7f4e-46d2-a53a-46a3aecec71e/sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i[24521,24534] [2024-11-13 20:52:08,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:52:08,977 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:52:09,048 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_c9763628-7f4e-46d2-a53a-46a3aecec71e/sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i[24521,24534] [2024-11-13 20:52:09,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:52:09,079 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:52:09,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:52:09 WrapperNode [2024-11-13 20:52:09,081 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:52:09,082 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:52:09,083 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:52:09,083 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:52:09,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:52:09" (1/1) ... [2024-11-13 20:52:09,106 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:52:09" (1/1) ... [2024-11-13 20:52:09,135 INFO L138 Inliner]: procedures = 129, calls = 33, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 135 [2024-11-13 20:52:09,139 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:52:09,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:52:09,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:52:09,140 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:52:09,146 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:52:09" (1/1) ... [2024-11-13 20:52:09,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:52:09" (1/1) ... [2024-11-13 20:52:09,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:52:09" (1/1) ... [2024-11-13 20:52:09,158 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:52:09" (1/1) ... [2024-11-13 20:52:09,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:52:09" (1/1) ... [2024-11-13 20:52:09,181 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:52:09" (1/1) ... [2024-11-13 20:52:09,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:52:09" (1/1) ... [2024-11-13 20:52:09,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:52:09" (1/1) ... [2024-11-13 20:52:09,190 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:52:09,191 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:52:09,195 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:52:09,195 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:52:09,200 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:52:09" (1/1) ... [2024-11-13 20:52:09,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:52:09,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9763628-7f4e-46d2-a53a-46a3aecec71e/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:52:09,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9763628-7f4e-46d2-a53a-46a3aecec71e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:52:09,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9763628-7f4e-46d2-a53a-46a3aecec71e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:52:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2024-11-13 20:52:09,291 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2024-11-13 20:52:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 20:52:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure _get_nondet_int [2024-11-13 20:52:09,292 INFO L138 BoogieDeclarations]: Found implementation of procedure _get_nondet_int [2024-11-13 20:52:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:52:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 20:52:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 20:52:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 20:52:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 20:52:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 20:52:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 20:52:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:52:09,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:52:09,482 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:52:09,485 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:52:09,520 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2024-11-13 20:52:09,857 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2024-11-13 20:52:09,857 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:52:09,949 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:52:09,949 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-13 20:52:09,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:52:09 BoogieIcfgContainer [2024-11-13 20:52:09,950 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:52:09,951 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:52:09,951 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:52:09,969 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:52:09,969 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:52:09" (1/1) ... [2024-11-13 20:52:09,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:52:10,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:52:10,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 36 states and 50 transitions. [2024-11-13 20:52:10,065 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2024-11-13 20:52:10,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 20:52:10,071 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:52:10,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:52:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:52:10,274 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 20:52:10,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:52:10,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 36 states and 46 transitions. [2024-11-13 20:52:10,357 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2024-11-13 20:52:10,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 20:52:10,360 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:52:10,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:52:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:52:10,832 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 20:52:11,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:52:11,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 43 states and 58 transitions. [2024-11-13 20:52:11,082 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2024-11-13 20:52:11,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-13 20:52:11,083 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:52:11,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:52:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:52:11,672 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 20:52:12,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:52:12,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 45 states and 61 transitions. [2024-11-13 20:52:12,567 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2024-11-13 20:52:12,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-13 20:52:12,568 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:52:12,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:52:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:52:12,926 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 20:52:13,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:52:13,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 48 states and 67 transitions. [2024-11-13 20:52:13,567 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 67 transitions. [2024-11-13 20:52:13,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 20:52:13,567 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:52:13,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:52:13,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:52:13,883 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 20:52:14,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:52:14,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 52 states and 72 transitions. [2024-11-13 20:52:14,866 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 72 transitions. [2024-11-13 20:52:14,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-13 20:52:14,867 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:52:14,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:52:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:52:15,125 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 20:52:15,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:52:15,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 52 states and 71 transitions. [2024-11-13 20:52:15,349 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2024-11-13 20:52:15,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 20:52:15,350 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:52:15,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:52:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:52:15,882 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 20:52:17,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:52:17,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 56 states and 78 transitions. [2024-11-13 20:52:17,613 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2024-11-13 20:52:17,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 20:52:17,614 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:52:17,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:52:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:52:18,555 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-13 20:52:24,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:52:24,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 76 states and 114 transitions. [2024-11-13 20:52:24,747 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 114 transitions. [2024-11-13 20:52:24,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-13 20:52:24,749 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:52:24,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:52:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:52:26,529 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 20:52:35,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:52:35,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 93 states and 143 transitions. [2024-11-13 20:52:35,140 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 143 transitions. [2024-11-13 20:52:35,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-13 20:52:35,142 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:52:35,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:52:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:52:35,776 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 20:52:37,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:52:37,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 95 states and 146 transitions. [2024-11-13 20:52:37,004 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 146 transitions. [2024-11-13 20:52:37,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-13 20:52:37,006 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:52:37,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:52:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:52:37,032 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:52:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:52:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:52:37,193 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:52:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:52:37,298 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2024-11-13 20:52:37,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:52:37 ImpRootNode [2024-11-13 20:52:37,363 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:52:37,364 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:52:37,364 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:52:37,364 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:52:37,365 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:52:09" (3/4) ... [2024-11-13 20:52:37,367 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 20:52:37,450 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9763628-7f4e-46d2-a53a-46a3aecec71e/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 20:52:37,450 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:52:37,451 INFO L158 Benchmark]: Toolchain (without parser) took 29074.84ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 91.9MB in the beginning and 178.7MB in the end (delta: -86.9MB). Peak memory consumption was 133.9MB. Max. memory is 16.1GB. [2024-11-13 20:52:37,452 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:52:37,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 701.56ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 73.6MB in the end (delta: 18.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:52:37,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.88ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 71.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:52:37,456 INFO L158 Benchmark]: Boogie Preprocessor took 50.62ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 70.4MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:52:37,456 INFO L158 Benchmark]: RCFGBuilder took 759.01ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 50.4MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:52:37,458 INFO L158 Benchmark]: CodeCheck took 27412.16ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 50.4MB in the beginning and 64.9MB in the end (delta: -14.5MB). Peak memory consumption was 91.6MB. Max. memory is 16.1GB. [2024-11-13 20:52:37,458 INFO L158 Benchmark]: Witness Printer took 86.77ms. Allocated memory is still 218.1MB. Free memory was 64.9MB in the beginning and 178.7MB in the end (delta: -113.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2024-11-13 20:52:37,462 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, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.3s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 837 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 267 mSDsluCounter, 483 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 164 mSDsCounter, 614 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1953 IncrementalHoareTripleChecker+Invalid, 2567 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 614 mSolverCounterUnsat, 319 mSDtfsCounter, 1953 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2351 GetRequests, 2064 SyntacticMatches, 29 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23266 ImplicationChecksByTransitivity, 22.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 331 NumberOfCodeBlocks, 331 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 285 ConstructedInterpolants, 0 QuantifiedInterpolants, 1850 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 53/113 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: 641]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L627] CALL, EXPR _get_nondet_int(2, 5) VAL [\old(from)=2, \old(until)=5] [L620] int len = from; VAL [\old(from)=2, \old(until)=5, len=2, until=5] [L621] len < until && __VERIFIER_nondet_int() [L621] len < until && __VERIFIER_nondet_int() VAL [\old(from)=2, \old(until)=5, len=2, until=5] [L621] COND FALSE !(len < until && __VERIFIER_nondet_int()) [L624] return len; [L627] RET, EXPR _get_nondet_int(2, 5) [L627] const int len = _get_nondet_int(2, 5); [L628] SLL s = sll_create(len); [L628] CALL, EXPR sll_create(len) [L575] SLL head = ((void *)0); VAL [head={0:0}, len=2] [L576] EXPR len-- VAL [head={0:0}, len=1] [L576] COND TRUE len-- > 0 [L577] SLL new_head = (SLL) malloc(sizeof(struct node)); [L578] COND FALSE !(((void *)0) == new_head) VAL [head={0:0}, len=1, new_head={-1:0}] [L581] new_head->next = head [L582] head = new_head [L576] EXPR len-- VAL [head={-1:0}, len=0] [L576] COND TRUE len-- > 0 [L577] SLL new_head = (SLL) malloc(sizeof(struct node)); [L578] COND FALSE !(((void *)0) == new_head) VAL [head={-1:0}, len=0, new_head={3231:0}] [L581] new_head->next = head [L582] head = new_head [L576] EXPR len-- VAL [head={3231:0}, len=-1] [L576] COND FALSE !(len-- > 0) [L584] return head; [L628] RET, EXPR sll_create(len) [L628] SLL s = sll_create(len); [L629] CALL, EXPR _get_nondet_int(0, len - 1) VAL [\old(from)=0, \old(until)=1] [L620] int len = from; VAL [\old(from)=0, \old(until)=1, len=0, until=1] [L621] len < until && __VERIFIER_nondet_int() [L621] len < until && __VERIFIER_nondet_int() VAL [\old(from)=0, \old(until)=1, len=0, until=1] [L621] COND TRUE len < until && __VERIFIER_nondet_int() [L622] len++ VAL [\old(from)=0, \old(until)=1, len=1, until=1] [L621] len < until && __VERIFIER_nondet_int() VAL [\old(from)=0, \old(until)=1, len=1, until=1] [L621] COND FALSE !(len < until && __VERIFIER_nondet_int()) [L624] return len; [L629] RET, EXPR _get_nondet_int(0, len - 1) VAL [len=2, s={3233:0}] [L629] const int k = _get_nondet_int(0, len - 1); [L630] int i = 0; VAL [i=0, k=1, len=2, s={3233:0}] [L631] i < k && __VERIFIER_nondet_int() [L631] i < k && __VERIFIER_nondet_int() VAL [i=0, k=1, len=2, s={3233:0}] [L631] COND FALSE !(i < k && __VERIFIER_nondet_int()) [L636] EXPR \read(s) [L636] CALL, EXPR sll_length(s) [L587] int len = 0; VAL [head={3231:0}, len=0] [L588] COND TRUE \read(head) [L589] len++ [L590] EXPR head->next [L590] head = head->next [L588] COND TRUE \read(head) [L589] len++ [L590] EXPR head->next [L590] head = head->next [L588] COND FALSE !(\read(head)) [L592] return len; [L636] RET, EXPR sll_length(s) [L636] COND TRUE k + len != sll_length(s) [L641] reach_error() VAL [i=0, s={3233:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 701.56ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 73.6MB in the end (delta: 18.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.88ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 71.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.62ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 70.4MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 759.01ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 50.4MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 27412.16ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 50.4MB in the beginning and 64.9MB in the end (delta: -14.5MB). Peak memory consumption was 91.6MB. Max. memory is 16.1GB. * Witness Printer took 86.77ms. Allocated memory is still 218.1MB. Free memory was 64.9MB in the beginning and 178.7MB in the end (delta: -113.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 20:52:37,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9763628-7f4e-46d2-a53a-46a3aecec71e/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