./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/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_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/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_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/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 15d1d7d49ed223522c6431664b8ff836ebc81296f5e11773e2197361bd8b13cf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:22:56,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:22:56,234 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:22:56,242 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:22:56,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:22:56,279 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:22:56,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:22:56,280 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:22:56,281 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:22:56,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:22:56,282 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:22:56,282 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:22:56,282 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:22:56,283 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:22:56,283 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:22:56,283 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:22:56,284 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:22:56,284 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:22:56,285 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:22:56,285 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:22:56,285 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:22:56,290 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:22:56,290 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:22:56,291 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:22:56,291 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:22:56,291 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:22:56,291 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:22:56,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:22:56,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:22:56,292 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:22:56,292 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:22:56,292 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:22:56,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:22:56,293 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_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15d1d7d49ed223522c6431664b8ff836ebc81296f5e11773e2197361bd8b13cf [2024-11-09 00:22:56,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:22:56,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:22:56,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:22:56,605 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:22:56,606 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:22:56,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i Unable to find full path for "g++" [2024-11-09 00:22:58,599 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:22:58,850 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:22:58,851 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/sv-benchmarks/c/heap-manipulation/merge_sort-1.i [2024-11-09 00:22:58,865 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/bin/ukojak-verify-ImItNfHLgk/data/ff7a029ce/693a9cf62d804e54b39fc293b92a322d/FLAG0b1c14c79 [2024-11-09 00:22:59,170 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/bin/ukojak-verify-ImItNfHLgk/data/ff7a029ce/693a9cf62d804e54b39fc293b92a322d [2024-11-09 00:22:59,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:22:59,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:22:59,176 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:22:59,176 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:22:59,181 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:22:59,182 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:22:59" (1/1) ... [2024-11-09 00:22:59,183 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31e73d84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:59, skipping insertion in model container [2024-11-09 00:22:59,183 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:22:59" (1/1) ... [2024-11-09 00:22:59,229 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:22:59,623 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_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/sv-benchmarks/c/heap-manipulation/merge_sort-1.i[22632,22645] [2024-11-09 00:22:59,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:22:59,693 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:22:59,740 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_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/sv-benchmarks/c/heap-manipulation/merge_sort-1.i[22632,22645] [2024-11-09 00:22:59,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:22:59,807 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:22:59,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:59 WrapperNode [2024-11-09 00:22:59,808 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:22:59,809 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:22:59,809 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:22:59,810 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:22:59,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:59" (1/1) ... [2024-11-09 00:22:59,835 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:59" (1/1) ... [2024-11-09 00:22:59,882 INFO L138 Inliner]: procedures = 125, calls = 83, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 268 [2024-11-09 00:22:59,883 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:22:59,883 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:22:59,884 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:22:59,884 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:22:59,894 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:59" (1/1) ... [2024-11-09 00:22:59,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:59" (1/1) ... [2024-11-09 00:22:59,904 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:59" (1/1) ... [2024-11-09 00:22:59,904 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:59" (1/1) ... [2024-11-09 00:22:59,924 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:59" (1/1) ... [2024-11-09 00:22:59,934 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:59" (1/1) ... [2024-11-09 00:22:59,939 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:59" (1/1) ... [2024-11-09 00:22:59,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:59" (1/1) ... [2024-11-09 00:22:59,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:22:59,953 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:22:59,953 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:22:59,954 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:22:59,955 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:59" (1/1) ... [2024-11-09 00:22:59,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:22:59,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:23:00,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:23:00,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:23:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 00:23:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2024-11-09 00:23:00,044 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2024-11-09 00:23:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2024-11-09 00:23:00,044 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2024-11-09 00:23:00,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 00:23:00,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 00:23:00,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:23:00,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 00:23:00,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 00:23:00,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 00:23:00,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 00:23:00,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:23:00,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:23:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:23:00,244 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:23:00,247 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:23:00,784 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live. [2024-11-09 00:23:00,785 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:23:00,948 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:23:00,948 INFO L316 CfgBuilder]: Removed 31 assume(true) statements. [2024-11-09 00:23:00,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:23:00 BoogieIcfgContainer [2024-11-09 00:23:00,949 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:23:00,950 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:23:00,950 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:23:00,963 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:23:00,963 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:23:00" (1/1) ... [2024-11-09 00:23:00,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:23:01,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:01,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 83 states and 151 transitions. [2024-11-09 00:23:01,045 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 151 transitions. [2024-11-09 00:23:01,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 00:23:01,047 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:01,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:23:01,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:23:01,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:01,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 82 states and 134 transitions. [2024-11-09 00:23:01,212 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 134 transitions. [2024-11-09 00:23:01,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 00:23:01,215 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:01,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:23:01,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:23:01,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:01,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 85 states and 137 transitions. [2024-11-09 00:23:01,355 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 137 transitions. [2024-11-09 00:23:01,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 00:23:01,356 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:01,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:01,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:23:01,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:23:01,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:01,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 84 states and 135 transitions. [2024-11-09 00:23:01,732 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 135 transitions. [2024-11-09 00:23:01,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 00:23:01,733 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:01,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:23:01,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:23:01,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:01,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 84 states and 132 transitions. [2024-11-09 00:23:01,837 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 132 transitions. [2024-11-09 00:23:01,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 00:23:01,840 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:01,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:23:01,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:23:02,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:02,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 87 states and 137 transitions. [2024-11-09 00:23:02,232 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 137 transitions. [2024-11-09 00:23:02,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 00:23:02,233 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:02,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:23:02,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:23:02,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:02,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 88 states and 136 transitions. [2024-11-09 00:23:02,386 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 136 transitions. [2024-11-09 00:23:02,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 00:23:02,387 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:02,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:23:02,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:23:03,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:03,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 91 states and 137 transitions. [2024-11-09 00:23:03,041 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 137 transitions. [2024-11-09 00:23:03,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 00:23:03,041 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:03,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:23:03,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:23:03,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:03,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 94 states and 138 transitions. [2024-11-09 00:23:03,275 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 138 transitions. [2024-11-09 00:23:03,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 00:23:03,276 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:03,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:23:03,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:23:05,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:05,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 103 states and 148 transitions. [2024-11-09 00:23:05,067 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 148 transitions. [2024-11-09 00:23:05,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 00:23:05,068 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:05,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:23:05,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:23:06,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:06,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 110 states and 154 transitions. [2024-11-09 00:23:06,008 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 154 transitions. [2024-11-09 00:23:06,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 00:23:06,011 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:06,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:23:06,039 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:23:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:23:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:23:06,121 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:23:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:23:06,165 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2024-11-09 00:23:06,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:23:06 ImpRootNode [2024-11-09 00:23:06,191 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:23:06,192 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:23:06,192 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:23:06,192 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:23:06,193 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:23:00" (3/4) ... [2024-11-09 00:23:06,193 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 00:23:06,251 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:23:06,251 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:23:06,252 INFO L158 Benchmark]: Toolchain (without parser) took 7077.48ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 108.3MB in the beginning and 67.9MB in the end (delta: 40.4MB). Peak memory consumption was 92.8MB. Max. memory is 16.1GB. [2024-11-09 00:23:06,256 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 148.9MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:23:06,256 INFO L158 Benchmark]: CACSL2BoogieTranslator took 632.39ms. Allocated memory is still 148.9MB. Free memory was 108.3MB in the beginning and 87.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 00:23:06,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.23ms. Allocated memory is still 148.9MB. Free memory was 87.3MB in the beginning and 84.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:23:06,257 INFO L158 Benchmark]: Boogie Preprocessor took 69.09ms. Allocated memory is still 148.9MB. Free memory was 84.7MB in the beginning and 82.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:23:06,257 INFO L158 Benchmark]: RCFGBuilder took 995.97ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 81.6MB in the beginning and 160.1MB in the end (delta: -78.6MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2024-11-09 00:23:06,258 INFO L158 Benchmark]: CodeCheck took 5241.22ms. Allocated memory is still 199.2MB. Free memory was 160.1MB in the beginning and 70.0MB in the end (delta: 90.1MB). Peak memory consumption was 90.1MB. Max. memory is 16.1GB. [2024-11-09 00:23:06,258 INFO L158 Benchmark]: Witness Printer took 59.51ms. Allocated memory is still 199.2MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:23:06,261 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, 83 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 814 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 646 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 280 mSDsCounter, 181 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 559 IncrementalHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 181 mSolverCounterUnsat, 366 mSDtfsCounter, 559 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1258 GetRequests, 1172 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2221 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 539 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 16/16 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: 565]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L638] struct list *data = ((void *)0); VAL [data={0:0}] [L639] COND TRUE __VERIFIER_nondet_int() [L640] struct node *node = malloc(sizeof *node); [L641] COND FALSE !(!node) [L643] node->next = node [L644] node->value = __VERIFIER_nondet_int() [L645] struct list *item = malloc(sizeof *item); [L646] COND FALSE !(!item) [L648] item->slist = node [L649] item->next = data [L650] data = item [L639] COND FALSE !(__VERIFIER_nondet_int()) [L652] COND FALSE !(!data) [L654] CALL inspect_before(data) [L615] COND FALSE !(!(shape)) VAL [shape={-2:0}] [L616] shape->next VAL [shape={-2:0}] [L616] COND FALSE !(shape->next) [L622] COND FALSE !(!(shape)) VAL [shape={-2:0}] [L623] EXPR shape->next VAL [shape={-2:0}] [L623] COND FALSE !(!(shape->next == ((void *)0))) [L624] EXPR shape->slist VAL [shape={-2:0}] [L624] COND FALSE !(!(shape->slist)) [L625] EXPR shape->slist [L625] EXPR shape->slist->next VAL [shape={-2:0}] [L625] COND TRUE !(shape->slist->next == ((void *)0)) [L625] CALL fail() [L565] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 148.9MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 632.39ms. Allocated memory is still 148.9MB. Free memory was 108.3MB in the beginning and 87.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.23ms. Allocated memory is still 148.9MB. Free memory was 87.3MB in the beginning and 84.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.09ms. Allocated memory is still 148.9MB. Free memory was 84.7MB in the beginning and 82.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 995.97ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 81.6MB in the beginning and 160.1MB in the end (delta: -78.6MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. * CodeCheck took 5241.22ms. Allocated memory is still 199.2MB. Free memory was 160.1MB in the beginning and 70.0MB in the end (delta: 90.1MB). Peak memory consumption was 90.1MB. Max. memory is 16.1GB. * Witness Printer took 59.51ms. Allocated memory is still 199.2MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 00:23:06,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aa86c-1257-432b-b2ef-9f59da6b3d11/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