./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 2329fc70 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_482ba89a-14c3-45bb-9f1c-2846dfe3546e/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482ba89a-14c3-45bb-9f1c-2846dfe3546e/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482ba89a-14c3-45bb-9f1c-2846dfe3546e/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482ba89a-14c3-45bb-9f1c-2846dfe3546e/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482ba89a-14c3-45bb-9f1c-2846dfe3546e/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482ba89a-14c3-45bb-9f1c-2846dfe3546e/bin/ukojak-rkRKPMF4O4 --witnessprinter.witness.filename witness.graphml --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 23:17:41,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 23:17:41,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 23:17:41,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 23:17:41,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 23:17:41,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 23:17:41,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 23:17:41,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 23:17:41,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 23:17:41,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 23:17:41,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 23:17:41,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 23:17:41,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 23:17:41,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 23:17:41,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 23:17:41,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 23:17:41,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 23:17:41,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 23:17:41,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 23:17:41,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 23:17:41,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 23:17:41,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 23:17:41,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 23:17:41,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 23:17:41,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 23:17:41,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 23:17:41,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 23:17:41,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 23:17:41,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 23:17:41,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 23:17:41,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 23:17:41,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 23:17:41,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 23:17:41,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 23:17:41,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 23:17:41,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 23:17:41,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 23:17:41,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 23:17:41,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 23:17:41,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 23:17:41,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 23:17:41,317 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482ba89a-14c3-45bb-9f1c-2846dfe3546e/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-14 23:17:41,337 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 23:17:41,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 23:17:41,338 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 23:17:41,338 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 23:17:41,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 23:17:41,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 23:17:41,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 23:17:41,340 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 23:17:41,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 23:17:41,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 23:17:41,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 23:17:41,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 23:17:41,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 23:17:41,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 23:17:41,341 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 23:17:41,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 23:17:41,341 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 23:17:41,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 23:17:41,342 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 23:17:41,342 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 23:17:41,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 23:17:41,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 23:17:41,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 23:17:41,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 23:17:41,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 23:17:41,343 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 23:17:41,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 23:17:41,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 23:17:41,343 INFO L138 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_482ba89a-14c3-45bb-9f1c-2846dfe3546e/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482ba89a-14c3-45bb-9f1c-2846dfe3546e/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15d1d7d49ed223522c6431664b8ff836ebc81296f5e11773e2197361bd8b13cf [2022-12-14 23:17:41,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 23:17:41,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 23:17:41,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 23:17:41,571 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 23:17:41,572 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 23:17:41,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482ba89a-14c3-45bb-9f1c-2846dfe3546e/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i [2022-12-14 23:17:44,079 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 23:17:44,288 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 23:17:44,289 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482ba89a-14c3-45bb-9f1c-2846dfe3546e/sv-benchmarks/c/heap-manipulation/merge_sort-1.i [2022-12-14 23:17:44,300 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482ba89a-14c3-45bb-9f1c-2846dfe3546e/bin/ukojak-rkRKPMF4O4/data/619aa91b3/f60058e5f2864b318f42b25e5ba1fa22/FLAGed2e59083 [2022-12-14 23:17:44,650 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482ba89a-14c3-45bb-9f1c-2846dfe3546e/bin/ukojak-rkRKPMF4O4/data/619aa91b3/f60058e5f2864b318f42b25e5ba1fa22 [2022-12-14 23:17:44,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 23:17:44,652 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 23:17:44,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 23:17:44,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 23:17:44,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 23:17:44,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:17:44" (1/1) ... [2022-12-14 23:17:44,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71ccbde3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:44, skipping insertion in model container [2022-12-14 23:17:44,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:17:44" (1/1) ... [2022-12-14 23:17:44,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 23:17:44,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 23:17:44,903 WARN L237 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_482ba89a-14c3-45bb-9f1c-2846dfe3546e/sv-benchmarks/c/heap-manipulation/merge_sort-1.i[22632,22645] [2022-12-14 23:17:44,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 23:17:44,940 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 23:17:44,967 WARN L237 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_482ba89a-14c3-45bb-9f1c-2846dfe3546e/sv-benchmarks/c/heap-manipulation/merge_sort-1.i[22632,22645] [2022-12-14 23:17:44,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 23:17:45,002 INFO L208 MainTranslator]: Completed translation [2022-12-14 23:17:45,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:45 WrapperNode [2022-12-14 23:17:45,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 23:17:45,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 23:17:45,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 23:17:45,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 23:17:45,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:45" (1/1) ... [2022-12-14 23:17:45,023 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:45" (1/1) ... [2022-12-14 23:17:45,049 INFO L138 Inliner]: procedures = 125, calls = 83, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 285 [2022-12-14 23:17:45,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 23:17:45,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 23:17:45,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 23:17:45,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 23:17:45,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:45" (1/1) ... [2022-12-14 23:17:45,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:45" (1/1) ... [2022-12-14 23:17:45,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:45" (1/1) ... [2022-12-14 23:17:45,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:45" (1/1) ... [2022-12-14 23:17:45,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:45" (1/1) ... [2022-12-14 23:17:45,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:45" (1/1) ... [2022-12-14 23:17:45,082 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:45" (1/1) ... [2022-12-14 23:17:45,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:45" (1/1) ... [2022-12-14 23:17:45,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 23:17:45,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 23:17:45,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 23:17:45,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 23:17:45,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:45" (1/1) ... [2022-12-14 23:17:45,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 23:17:45,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482ba89a-14c3-45bb-9f1c-2846dfe3546e/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 23:17:45,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482ba89a-14c3-45bb-9f1c-2846dfe3546e/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 23:17:45,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482ba89a-14c3-45bb-9f1c-2846dfe3546e/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 23:17:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 23:17:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2022-12-14 23:17:45,151 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2022-12-14 23:17:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2022-12-14 23:17:45,151 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2022-12-14 23:17:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 23:17:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 23:17:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 23:17:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 23:17:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 23:17:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 23:17:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 23:17:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 23:17:45,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 23:17:45,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 23:17:45,252 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 23:17:45,254 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 23:17:45,569 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 23:17:45,636 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 23:17:45,636 INFO L300 CfgBuilder]: Removed 33 assume(true) statements. [2022-12-14 23:17:45,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:17:45 BoogieIcfgContainer [2022-12-14 23:17:45,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 23:17:45,639 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 23:17:45,639 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 23:17:45,646 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 23:17:45,646 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:17:45" (1/1) ... [2022-12-14 23:17:45,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 23:17:45,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:17:45,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 80 states and 146 transitions. [2022-12-14 23:17:45,697 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 146 transitions. [2022-12-14 23:17:45,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 23:17:45,698 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:17:45,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:17:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:17:45,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:17:45,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:17:45,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 79 states and 129 transitions. [2022-12-14 23:17:45,815 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 129 transitions. [2022-12-14 23:17:45,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 23:17:45,815 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:17:45,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:17:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:17:45,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:17:45,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:17:45,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 82 states and 132 transitions. [2022-12-14 23:17:45,916 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 132 transitions. [2022-12-14 23:17:45,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 23:17:45,916 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:17:45,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:17:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:17:46,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:17:46,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:17:46,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 81 states and 130 transitions. [2022-12-14 23:17:46,137 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 130 transitions. [2022-12-14 23:17:46,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 23:17:46,137 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:17:46,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:17:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:17:46,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 23:17:46,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:17:46,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 81 states and 127 transitions. [2022-12-14 23:17:46,168 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 127 transitions. [2022-12-14 23:17:46,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 23:17:46,168 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:17:46,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:17:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:17:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:17:46,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:17:46,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 84 states and 130 transitions. [2022-12-14 23:17:46,340 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 130 transitions. [2022-12-14 23:17:46,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 23:17:46,341 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:17:46,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:17:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:17:46,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:17:46,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:17:46,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 85 states and 131 transitions. [2022-12-14 23:17:46,410 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 131 transitions. [2022-12-14 23:17:46,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 23:17:46,411 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:17:46,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:17:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:17:46,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 23:17:46,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:17:46,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 88 states and 132 transitions. [2022-12-14 23:17:46,750 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 132 transitions. [2022-12-14 23:17:46,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 23:17:46,751 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:17:46,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:17:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:17:46,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 23:17:46,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:17:46,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 91 states and 133 transitions. [2022-12-14 23:17:46,904 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 133 transitions. [2022-12-14 23:17:46,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 23:17:46,904 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:17:46,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:17:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:17:47,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:17:47,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:17:47,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 100 states and 143 transitions. [2022-12-14 23:17:47,842 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2022-12-14 23:17:47,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 23:17:47,842 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:17:47,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:17:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:17:47,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:17:48,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:17:48,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 107 states and 149 transitions. [2022-12-14 23:17:48,355 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 149 transitions. [2022-12-14 23:17:48,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 23:17:48,356 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:17:48,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:17:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:17:48,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:17:49,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:17:49,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 114 states and 155 transitions. [2022-12-14 23:17:49,217 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 155 transitions. [2022-12-14 23:17:49,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 23:17:49,217 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:17:49,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:17:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 23:17:49,234 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 23:17:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 23:17:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 23:17:49,302 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 23:17:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 23:17:49,337 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 12 iterations. [2022-12-14 23:17:49,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 11:17:49 ImpRootNode [2022-12-14 23:17:49,365 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 23:17:49,366 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 23:17:49,366 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 23:17:49,366 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 23:17:49,366 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:17:45" (3/4) ... [2022-12-14 23:17:49,368 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 23:17:49,410 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482ba89a-14c3-45bb-9f1c-2846dfe3546e/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 23:17:49,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 23:17:49,411 INFO L158 Benchmark]: Toolchain (without parser) took 4758.20ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 91.4MB in the beginning and 60.1MB in the end (delta: 31.3MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2022-12-14 23:17:49,411 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 23:17:49,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.80ms. Allocated memory is still 127.9MB. Free memory was 91.4MB in the beginning and 73.1MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 23:17:49,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.78ms. Allocated memory is still 127.9MB. Free memory was 73.1MB in the beginning and 70.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 23:17:49,413 INFO L158 Benchmark]: Boogie Preprocessor took 36.99ms. Allocated memory is still 127.9MB. Free memory was 70.4MB in the beginning and 67.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 23:17:49,414 INFO L158 Benchmark]: RCFGBuilder took 550.31ms. Allocated memory is still 127.9MB. Free memory was 67.9MB in the beginning and 74.5MB in the end (delta: -6.6MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2022-12-14 23:17:49,414 INFO L158 Benchmark]: CodeCheck took 3726.51ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 74.5MB in the beginning and 62.2MB in the end (delta: 12.4MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2022-12-14 23:17:49,415 INFO L158 Benchmark]: Witness Printer took 44.66ms. Allocated memory is still 155.2MB. Free memory was 62.2MB in the beginning and 60.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 23:17:49,418 INFO L339 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, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 999 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 310 mSDsluCounter, 787 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 364 mSDsCounter, 213 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 705 IncrementalHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 213 mSolverCounterUnsat, 423 mSDtfsCounter, 705 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1456 GetRequests, 1364 SyntacticMatches, 6 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2408 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 141 ConstructedInterpolants, 0 QuantifiedInterpolants, 709 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 16/18 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 VAL [data={-1:0}, item={-1:0}, node={-2:0}] [L639] COND FALSE !(__VERIFIER_nondet_int()) [L652] COND FALSE !(!data) [L654] CALL inspect_before(data) [L615] COND FALSE !(!(shape)) VAL [shape={-1:0}, shape={-1:0}] [L616] shape->next VAL [shape={-1:0}, shape={-1:0}, shape->next={0:0}] [L616] COND FALSE !(shape->next) [L622] COND FALSE !(!(shape)) VAL [shape={-1:0}, shape={-1:0}] [L623] EXPR shape->next VAL [shape={-1:0}, shape={-1:0}, shape->next={0:0}] [L623] COND FALSE !(!(shape->next == ((void *)0))) [L624] EXPR shape->slist VAL [shape={-1:0}, shape={-1:0}, shape->slist={-2:0}] [L624] COND FALSE !(!(shape->slist)) [L625] EXPR shape->slist [L625] EXPR shape->slist->next VAL [shape={-1:0}, shape={-1:0}, shape->slist={-2:0}, shape->slist->next={-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 0.13ms. Allocated memory is still 102.8MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.80ms. Allocated memory is still 127.9MB. Free memory was 91.4MB in the beginning and 73.1MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.78ms. Allocated memory is still 127.9MB. Free memory was 73.1MB in the beginning and 70.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.99ms. Allocated memory is still 127.9MB. Free memory was 70.4MB in the beginning and 67.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 550.31ms. Allocated memory is still 127.9MB. Free memory was 67.9MB in the beginning and 74.5MB in the end (delta: -6.6MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * CodeCheck took 3726.51ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 74.5MB in the beginning and 62.2MB in the end (delta: 12.4MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * Witness Printer took 44.66ms. Allocated memory is still 155.2MB. Free memory was 62.2MB in the beginning and 60.1MB 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! [2022-12-14 23:17:49,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482ba89a-14c3-45bb-9f1c-2846dfe3546e/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE