./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2c_remove_all.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_7420322f-8032-4dd3-ae44-936567a7da07/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7420322f-8032-4dd3-ae44-936567a7da07/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_7420322f-8032-4dd3-ae44-936567a7da07/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7420322f-8032-4dd3-ae44-936567a7da07/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/dll2c_remove_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7420322f-8032-4dd3-ae44-936567a7da07/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_7420322f-8032-4dd3-ae44-936567a7da07/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 6c2ed91303515fb47ae50633bb4ba0c83e07781b13d03a95e0e32251f9fc3016 --- 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 17:51:30,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 17:51:30,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 17:51:30,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 17:51:30,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 17:51:30,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 17:51:30,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 17:51:30,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 17:51:30,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 17:51:30,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 17:51:30,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 17:51:30,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 17:51:30,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 17:51:30,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 17:51:30,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 17:51:30,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 17:51:30,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 17:51:30,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 17:51:30,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 17:51:30,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 17:51:30,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 17:51:30,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 17:51:30,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 17:51:30,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 17:51:30,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 17:51:30,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 17:51:30,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 17:51:30,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 17:51:30,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 17:51:30,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 17:51:30,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 17:51:30,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 17:51:30,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 17:51:30,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 17:51:30,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 17:51:30,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 17:51:30,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 17:51:30,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 17:51:30,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 17:51:30,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 17:51:30,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 17:51:30,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7420322f-8032-4dd3-ae44-936567a7da07/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-14 17:51:30,430 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 17:51:30,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 17:51:30,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 17:51:30,431 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 17:51:30,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 17:51:30,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 17:51:30,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 17:51:30,432 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 17:51:30,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 17:51:30,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 17:51:30,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 17:51:30,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 17:51:30,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 17:51:30,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 17:51:30,433 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 17:51:30,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 17:51:30,433 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 17:51:30,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 17:51:30,433 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 17:51:30,434 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 17:51:30,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 17:51:30,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 17:51:30,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 17:51:30,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 17:51:30,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 17:51:30,435 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 17:51:30,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 17:51:30,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 17:51:30,435 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_7420322f-8032-4dd3-ae44-936567a7da07/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7420322f-8032-4dd3-ae44-936567a7da07/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c2ed91303515fb47ae50633bb4ba0c83e07781b13d03a95e0e32251f9fc3016 [2022-12-14 17:51:30,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 17:51:30,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 17:51:30,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 17:51:30,615 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 17:51:30,615 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 17:51:30,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7420322f-8032-4dd3-ae44-936567a7da07/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/list-simple/dll2c_remove_all.i [2022-12-14 17:51:33,207 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 17:51:33,352 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 17:51:33,352 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7420322f-8032-4dd3-ae44-936567a7da07/sv-benchmarks/c/list-simple/dll2c_remove_all.i [2022-12-14 17:51:33,361 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7420322f-8032-4dd3-ae44-936567a7da07/bin/ukojak-rkRKPMF4O4/data/68f343703/e6395e45af714323aeda2894a6fcc413/FLAG581c1301c [2022-12-14 17:51:33,376 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7420322f-8032-4dd3-ae44-936567a7da07/bin/ukojak-rkRKPMF4O4/data/68f343703/e6395e45af714323aeda2894a6fcc413 [2022-12-14 17:51:33,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 17:51:33,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 17:51:33,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 17:51:33,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 17:51:33,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 17:51:33,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:51:33" (1/1) ... [2022-12-14 17:51:33,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3223c697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:33, skipping insertion in model container [2022-12-14 17:51:33,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:51:33" (1/1) ... [2022-12-14 17:51:33,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 17:51:33,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 17:51:33,649 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_7420322f-8032-4dd3-ae44-936567a7da07/sv-benchmarks/c/list-simple/dll2c_remove_all.i[24169,24182] [2022-12-14 17:51:33,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 17:51:33,661 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 17:51:33,696 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_7420322f-8032-4dd3-ae44-936567a7da07/sv-benchmarks/c/list-simple/dll2c_remove_all.i[24169,24182] [2022-12-14 17:51:33,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 17:51:33,715 INFO L208 MainTranslator]: Completed translation [2022-12-14 17:51:33,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:33 WrapperNode [2022-12-14 17:51:33,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 17:51:33,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 17:51:33,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 17:51:33,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 17:51:33,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:33" (1/1) ... [2022-12-14 17:51:33,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:33" (1/1) ... [2022-12-14 17:51:33,751 INFO L138 Inliner]: procedures = 126, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 105 [2022-12-14 17:51:33,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 17:51:33,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 17:51:33,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 17:51:33,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 17:51:33,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:33" (1/1) ... [2022-12-14 17:51:33,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:33" (1/1) ... [2022-12-14 17:51:33,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:33" (1/1) ... [2022-12-14 17:51:33,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:33" (1/1) ... [2022-12-14 17:51:33,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:33" (1/1) ... [2022-12-14 17:51:33,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:33" (1/1) ... [2022-12-14 17:51:33,773 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:33" (1/1) ... [2022-12-14 17:51:33,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:33" (1/1) ... [2022-12-14 17:51:33,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 17:51:33,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 17:51:33,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 17:51:33,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 17:51:33,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:33" (1/1) ... [2022-12-14 17:51:33,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 17:51:33,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7420322f-8032-4dd3-ae44-936567a7da07/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 17:51:33,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7420322f-8032-4dd3-ae44-936567a7da07/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 17:51:33,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7420322f-8032-4dd3-ae44-936567a7da07/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 17:51:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 17:51:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-12-14 17:51:33,839 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-12-14 17:51:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 17:51:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 17:51:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 17:51:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 17:51:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 17:51:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 17:51:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 17:51:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 17:51:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 17:51:33,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 17:51:33,931 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 17:51:33,932 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 17:51:34,087 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 17:51:34,171 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 17:51:34,171 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 17:51:34,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:51:34 BoogieIcfgContainer [2022-12-14 17:51:34,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 17:51:34,174 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 17:51:34,174 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 17:51:34,184 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 17:51:34,184 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:51:34" (1/1) ... [2022-12-14 17:51:34,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 17:51:34,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 17:51:34,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2022-12-14 17:51:34,238 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-12-14 17:51:34,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 17:51:34,241 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 17:51:34,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 17:51:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 17:51:34,495 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 17:51:34,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 17:51:34,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 21 transitions. [2022-12-14 17:51:34,553 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-12-14 17:51:34,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 17:51:34,553 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 17:51:34,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 17:51:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 17:51:34,667 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 17:51:34,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 17:51:34,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 18 states and 23 transitions. [2022-12-14 17:51:34,829 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2022-12-14 17:51:34,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 17:51:34,830 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 17:51:34,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 17:51:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 17:51:34,956 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 17:51:35,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 17:51:35,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 19 states and 25 transitions. [2022-12-14 17:51:35,048 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2022-12-14 17:51:35,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 17:51:35,049 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 17:51:35,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 17:51:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 17:51:38,004 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 17:51:40,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 17:51:40,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 26 states and 49 transitions. [2022-12-14 17:51:40,212 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 49 transitions. [2022-12-14 17:51:40,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 17:51:40,213 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 17:51:40,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 17:51:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 17:51:41,966 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 17:51:43,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 17:51:43,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 29 states and 59 transitions. [2022-12-14 17:51:43,318 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 59 transitions. [2022-12-14 17:51:43,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 17:51:43,319 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 17:51:43,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 17:51:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 17:51:43,537 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 17:51:44,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 17:51:44,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 31 states and 60 transitions. [2022-12-14 17:51:44,193 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 60 transitions. [2022-12-14 17:51:44,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 17:51:44,194 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 17:51:44,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 17:51:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 17:51:44,335 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 17:51:44,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 17:51:44,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 33 states and 65 transitions. [2022-12-14 17:51:44,847 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 65 transitions. [2022-12-14 17:51:44,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 17:51:44,848 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 17:51:44,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 17:51:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 17:51:44,928 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 17:51:45,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 17:51:45,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 35 states and 70 transitions. [2022-12-14 17:51:45,536 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 70 transitions. [2022-12-14 17:51:45,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 17:51:45,536 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 17:51:45,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 17:51:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 17:51:45,633 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 17:51:45,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 17:51:45,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 19 states and 21 transitions. [2022-12-14 17:51:45,919 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-14 17:51:45,919 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 17:51:45,919 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2022-12-14 17:51:45,925 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-12-14 17:51:45,998 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 17:51:46,002 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 17:51:46,002 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 17:51:46,002 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 17:51:46,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 05:51:46 ImpRootNode [2022-12-14 17:51:46,002 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 17:51:46,003 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 17:51:46,003 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 17:51:46,003 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 17:51:46,003 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:51:34" (3/4) ... [2022-12-14 17:51:46,006 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 17:51:46,010 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure node_create [2022-12-14 17:51:46,012 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-12-14 17:51:46,012 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 17:51:46,012 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 17:51:46,013 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 17:51:46,042 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7420322f-8032-4dd3-ae44-936567a7da07/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 17:51:46,042 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 17:51:46,043 INFO L158 Benchmark]: Toolchain (without parser) took 12663.06ms. Allocated memory was 117.4MB in the beginning and 413.1MB in the end (delta: 295.7MB). Free memory was 82.3MB in the beginning and 145.3MB in the end (delta: -63.0MB). Peak memory consumption was 232.8MB. Max. memory is 16.1GB. [2022-12-14 17:51:46,043 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 17:51:46,043 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.03ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 64.9MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 17:51:46,044 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.01ms. Allocated memory is still 117.4MB. Free memory was 64.9MB in the beginning and 62.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 17:51:46,044 INFO L158 Benchmark]: Boogie Preprocessor took 25.31ms. Allocated memory is still 117.4MB. Free memory was 62.8MB in the beginning and 61.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 17:51:46,045 INFO L158 Benchmark]: RCFGBuilder took 395.80ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 61.0MB in the beginning and 106.3MB in the end (delta: -45.3MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2022-12-14 17:51:46,045 INFO L158 Benchmark]: CodeCheck took 11828.06ms. Allocated memory was 142.6MB in the beginning and 413.1MB in the end (delta: 270.5MB). Free memory was 106.3MB in the beginning and 148.3MB in the end (delta: -42.0MB). Peak memory consumption was 228.8MB. Max. memory is 16.1GB. [2022-12-14 17:51:46,046 INFO L158 Benchmark]: Witness Printer took 39.27ms. Allocated memory is still 413.1MB. Free memory was 148.3MB in the beginning and 145.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 17:51:46,048 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 2 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.7s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 515 SdHoareTripleChecker+Valid, 5.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 243 SdHoareTripleChecker+Invalid, 5.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 66 mSDsCounter, 390 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1425 IncrementalHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 390 mSolverCounterUnsat, 177 mSDtfsCounter, 1425 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1749 GetRequests, 1594 SyntacticMatches, 13 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7184 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 161 ConstructedInterpolants, 0 QuantifiedInterpolants, 965 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 66/84 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 - PositiveResult [Line: 627]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 588]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 619]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 614]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 614]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.03ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 64.9MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.01ms. Allocated memory is still 117.4MB. Free memory was 64.9MB in the beginning and 62.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.31ms. Allocated memory is still 117.4MB. Free memory was 62.8MB in the beginning and 61.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.80ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 61.0MB in the beginning and 106.3MB in the end (delta: -45.3MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. * CodeCheck took 11828.06ms. Allocated memory was 142.6MB in the beginning and 413.1MB in the end (delta: 270.5MB). Free memory was 106.3MB in the beginning and 148.3MB in the end (delta: -42.0MB). Peak memory consumption was 228.8MB. Max. memory is 16.1GB. * Witness Printer took 39.27ms. Allocated memory is still 413.1MB. Free memory was 148.3MB in the beginning and 145.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-14 17:51:46,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7420322f-8032-4dd3-ae44-936567a7da07/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 Result: TRUE