./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-properties/splice-1.i --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_db618602-460c-4642-88f3-28131f0be6e1/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db618602-460c-4642-88f3-28131f0be6e1/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_db618602-460c-4642-88f3-28131f0be6e1/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db618602-460c-4642-88f3-28131f0be6e1/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/list-properties/splice-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db618602-460c-4642-88f3-28131f0be6e1/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_db618602-460c-4642-88f3-28131f0be6e1/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 3368805c1b8fd734b0faf0a6dc34f33a5f2dfc4632d20a018a29950383fb6a5c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:27:27,979 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:27:28,072 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db618602-460c-4642-88f3-28131f0be6e1/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 19:27:28,080 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:27:28,081 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 19:27:28,112 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:27:28,116 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:27:28,117 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:27:28,118 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:27:28,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:27:28,121 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:27:28,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:27:28,122 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:27:28,123 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:27:28,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:27:28,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:27:28,124 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:27:28,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:27:28,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:27:28,129 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:27:28,129 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:27:28,130 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:27:28,130 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:27:28,131 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:27:28,131 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:27:28,131 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:27:28,132 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:27:28,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:27:28,132 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:27:28,133 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:27:28,135 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:27:28,135 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 19:27:28,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:27:28,137 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_db618602-460c-4642-88f3-28131f0be6e1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db618602-460c-4642-88f3-28131f0be6e1/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3368805c1b8fd734b0faf0a6dc34f33a5f2dfc4632d20a018a29950383fb6a5c [2024-11-08 19:27:28,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:27:28,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:27:28,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:27:28,479 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:27:28,479 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:27:28,481 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db618602-460c-4642-88f3-28131f0be6e1/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/list-properties/splice-1.i Unable to find full path for "g++" [2024-11-08 19:27:30,555 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:27:30,799 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:27:30,800 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db618602-460c-4642-88f3-28131f0be6e1/sv-benchmarks/c/list-properties/splice-1.i [2024-11-08 19:27:30,820 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db618602-460c-4642-88f3-28131f0be6e1/bin/ukojak-verify-ImItNfHLgk/data/ddacbf737/d4d374ab0b7e49c2b51657467e9e8f26/FLAG458042900 [2024-11-08 19:27:30,843 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db618602-460c-4642-88f3-28131f0be6e1/bin/ukojak-verify-ImItNfHLgk/data/ddacbf737/d4d374ab0b7e49c2b51657467e9e8f26 [2024-11-08 19:27:30,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:27:30,849 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:27:30,852 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:27:30,853 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:27:30,858 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:27:30,859 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:27:30" (1/1) ... [2024-11-08 19:27:30,861 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a4a6bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:27:30, skipping insertion in model container [2024-11-08 19:27:30,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:27:30" (1/1) ... [2024-11-08 19:27:30,914 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:27:31,299 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_db618602-460c-4642-88f3-28131f0be6e1/sv-benchmarks/c/list-properties/splice-1.i[23721,23734] [2024-11-08 19:27:31,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:27:31,318 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:27:31,375 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_db618602-460c-4642-88f3-28131f0be6e1/sv-benchmarks/c/list-properties/splice-1.i[23721,23734] [2024-11-08 19:27:31,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:27:31,411 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:27:31,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:27:31 WrapperNode [2024-11-08 19:27:31,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:27:31,413 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:27:31,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:27:31,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:27:31,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:27:31" (1/1) ... [2024-11-08 19:27:31,434 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:27:31" (1/1) ... [2024-11-08 19:27:31,456 INFO L138 Inliner]: procedures = 124, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 100 [2024-11-08 19:27:31,457 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:27:31,458 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:27:31,458 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:27:31,458 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:27:31,471 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:27:31" (1/1) ... [2024-11-08 19:27:31,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:27:31" (1/1) ... [2024-11-08 19:27:31,478 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:27:31" (1/1) ... [2024-11-08 19:27:31,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:27:31" (1/1) ... [2024-11-08 19:27:31,486 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:27:31" (1/1) ... [2024-11-08 19:27:31,489 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:27:31" (1/1) ... [2024-11-08 19:27:31,491 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:27:31" (1/1) ... [2024-11-08 19:27:31,492 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:27:31" (1/1) ... [2024-11-08 19:27:31,495 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:27:31,496 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:27:31,496 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:27:31,496 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:27:31,501 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:27:31" (1/1) ... [2024-11-08 19:27:31,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:27:31,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db618602-460c-4642-88f3-28131f0be6e1/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:27:31,535 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db618602-460c-4642-88f3-28131f0be6e1/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:27:31,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db618602-460c-4642-88f3-28131f0be6e1/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:27:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2024-11-08 19:27:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2024-11-08 19:27:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 19:27:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 19:27:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 19:27:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:27:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 19:27:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 19:27:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 19:27:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:27:31,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:27:31,712 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:27:31,714 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:27:31,745 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2024-11-08 19:27:31,967 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-08 19:27:31,967 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:27:32,052 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:27:32,056 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 19:27:32,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:27:32 BoogieIcfgContainer [2024-11-08 19:27:32,057 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:27:32,058 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:27:32,058 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:27:32,084 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:27:32,084 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:27:32" (1/1) ... [2024-11-08 19:27:32,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:27:32,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:27:32,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 28 states and 40 transitions. [2024-11-08 19:27:32,166 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2024-11-08 19:27:32,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 19:27:32,167 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:27:32,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:27:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:27:32,368 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 19:27:32,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:27:32,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 28 states and 37 transitions. [2024-11-08 19:27:32,406 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2024-11-08 19:27:32,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 19:27:32,407 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:27:32,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:27:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:27:32,822 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 19:27:32,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:27:32,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 32 states and 43 transitions. [2024-11-08 19:27:32,902 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2024-11-08 19:27:32,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-08 19:27:32,904 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:27:32,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:27:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:27:33,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 19:27:33,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:27:33,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 34 states and 45 transitions. [2024-11-08 19:27:33,311 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2024-11-08 19:27:33,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 19:27:33,312 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:27:33,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:27:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:27:33,372 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:27:33,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:27:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:27:33,611 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:27:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:27:33,696 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-11-08 19:27:33,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:27:33 ImpRootNode [2024-11-08 19:27:33,750 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:27:33,751 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:27:33,751 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:27:33,752 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:27:33,752 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:27:32" (3/4) ... [2024-11-08 19:27:33,753 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 19:27:33,820 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db618602-460c-4642-88f3-28131f0be6e1/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 19:27:33,821 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:27:33,822 INFO L158 Benchmark]: Toolchain (without parser) took 2972.31ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 104.8MB in the beginning and 86.0MB in the end (delta: 18.8MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2024-11-08 19:27:33,822 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory is still 44.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:27:33,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 561.47ms. Allocated memory is still 148.9MB. Free memory was 104.7MB in the beginning and 84.8MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 19:27:33,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.40ms. Allocated memory is still 148.9MB. Free memory was 84.8MB in the beginning and 82.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:27:33,826 INFO L158 Benchmark]: Boogie Preprocessor took 37.51ms. Allocated memory is still 148.9MB. Free memory was 82.8MB in the beginning and 81.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:27:33,826 INFO L158 Benchmark]: RCFGBuilder took 560.86ms. Allocated memory is still 148.9MB. Free memory was 81.2MB in the beginning and 62.9MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 19:27:33,826 INFO L158 Benchmark]: CodeCheck took 1692.96ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 62.9MB in the beginning and 89.2MB in the end (delta: -26.3MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2024-11-08 19:27:33,827 INFO L158 Benchmark]: Witness Printer took 69.88ms. Allocated memory is still 186.6MB. Free memory was 89.2MB in the beginning and 86.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:27:33,829 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 130 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 70 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 306 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 77 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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: 584]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L532] int flag = 1; [L533] List a = (List) malloc(sizeof(struct node)); [L534] COND FALSE !(a == 0) VAL [a={-2:0}, flag=1] [L535] List t; [L536] List l1; [L537] List l2; [L538] List b; [L539] List u; [L540] List p = a; VAL [a={-2:0}, flag=1, p={-2:0}] [L541] COND TRUE __VERIFIER_nondet_int() [L542] COND TRUE \read(flag) [L543] p->h = 1 [L544] flag = 0 [L549] t = (List) malloc(sizeof(struct node)) [L550] COND FALSE !(t == 0) VAL [a={-2:0}, flag=0, p={-2:0}, t={-1:0}] [L551] p->n = t [L552] EXPR p->n [L552] p = p->n [L541] COND FALSE !(__VERIFIER_nondet_int()) [L554] p->h = 3 [L555] EXPR a->h VAL [a={-2:0}, flag=0] [L555] COND FALSE !(a->h == 3) [L556] flag = 1 [L557] l1 = 0 [L558] l2 = 0 [L559] p = a VAL [flag=1, l1={0:0}, l2={0:0}, p={-2:0}] [L560] EXPR p->h VAL [flag=1, l1={0:0}, l2={0:0}, p={-2:0}] [L560] COND TRUE p->h != 3 [L561] t = p [L562] EXPR p->n [L562] p = p->n [L563] COND TRUE \read(flag) [L564] t->n = l1 [L565] l1 = t [L566] flag = 0 VAL [flag=0, l1={-2:0}, l2={0:0}, p={-1:0}] [L560] EXPR p->h VAL [flag=0, l1={-2:0}, l2={0:0}, p={-1:0}] [L560] COND FALSE !(p->h != 3) [L573] p = l1 VAL [flag=0, l2={0:0}, p={-2:0}] [L574] COND FALSE !(p != 0) VAL [flag=0, l2={0:0}, p={-2:0}] [L574] COND TRUE p != 0 [L575] EXPR p->h VAL [flag=0, l2={0:0}, p={-2:0}] [L575] COND TRUE p->h != 2 [L584] reach_error() VAL [flag=0, l2={0:0}, p={-2:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory is still 44.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 561.47ms. Allocated memory is still 148.9MB. Free memory was 104.7MB in the beginning and 84.8MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.40ms. Allocated memory is still 148.9MB. Free memory was 84.8MB in the beginning and 82.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.51ms. Allocated memory is still 148.9MB. Free memory was 82.8MB in the beginning and 81.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 560.86ms. Allocated memory is still 148.9MB. Free memory was 81.2MB in the beginning and 62.9MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1692.96ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 62.9MB in the beginning and 89.2MB in the end (delta: -26.3MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * Witness Printer took 69.88ms. Allocated memory is still 186.6MB. Free memory was 89.2MB in the beginning and 86.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-08 19:27:33,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db618602-460c-4642-88f3-28131f0be6e1/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE