./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/recursive_list.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fd642c89-56f7-4e53-ae62-b451b94e8c9e/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fd642c89-56f7-4e53-ae62-b451b94e8c9e/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fd642c89-56f7-4e53-ae62-b451b94e8c9e/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fd642c89-56f7-4e53-ae62-b451b94e8c9e/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/recursive_list.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fd642c89-56f7-4e53-ae62-b451b94e8c9e/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fd642c89-56f7-4e53-ae62-b451b94e8c9e/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3d5040117e2eabdebb8b19ac037d1eb680a830cf ............................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:44:08,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:44:08,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:44:08,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:44:08,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:44:08,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:44:08,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:44:08,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:44:08,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:44:08,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:44:08,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:44:08,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:44:08,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:44:08,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:44:08,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:44:08,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:44:08,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:44:08,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:44:08,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:44:08,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:44:08,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:44:08,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:44:08,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:44:08,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:44:08,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:44:08,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:44:08,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:44:08,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:44:08,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:44:08,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:44:08,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:44:08,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:44:08,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:44:08,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:44:08,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:44:08,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:44:08,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:44:08,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:44:08,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:44:08,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:44:08,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:44:08,388 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fd642c89-56f7-4e53-ae62-b451b94e8c9e/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-26 02:44:08,412 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:44:08,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:44:08,423 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:44:08,423 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:44:08,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:44:08,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:44:08,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:44:08,424 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:44:08,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:44:08,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:44:08,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:44:08,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:44:08,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:44:08,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:44:08,426 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:44:08,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:44:08,426 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:44:08,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:44:08,428 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:44:08,428 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:44:08,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:44:08,428 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:44:08,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:44:08,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:44:08,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:44:08,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:44:08,430 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:44:08,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:44:08,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:44:08,430 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fd642c89-56f7-4e53-ae62-b451b94e8c9e/bin/ukojak 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(__VERIFIER_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 -> 3d5040117e2eabdebb8b19ac037d1eb680a830cf [2019-11-26 02:44:08,573 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:44:08,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:44:08,586 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:44:08,587 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:44:08,588 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:44:08,588 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fd642c89-56f7-4e53-ae62-b451b94e8c9e/bin/ukojak/../../sv-benchmarks/c/ldv-regression/recursive_list.i [2019-11-26 02:44:08,650 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fd642c89-56f7-4e53-ae62-b451b94e8c9e/bin/ukojak/data/c6d8652b2/a9079a16e96f4de9aaedc38f86b9f311/FLAGa2c8376e0 [2019-11-26 02:44:09,027 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:44:09,028 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fd642c89-56f7-4e53-ae62-b451b94e8c9e/sv-benchmarks/c/ldv-regression/recursive_list.i [2019-11-26 02:44:09,033 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fd642c89-56f7-4e53-ae62-b451b94e8c9e/bin/ukojak/data/c6d8652b2/a9079a16e96f4de9aaedc38f86b9f311/FLAGa2c8376e0 [2019-11-26 02:44:09,449 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fd642c89-56f7-4e53-ae62-b451b94e8c9e/bin/ukojak/data/c6d8652b2/a9079a16e96f4de9aaedc38f86b9f311 [2019-11-26 02:44:09,451 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:44:09,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:44:09,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:44:09,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:44:09,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:44:09,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:44:09" (1/1) ... [2019-11-26 02:44:09,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b6b68f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:09, skipping insertion in model container [2019-11-26 02:44:09,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:44:09" (1/1) ... [2019-11-26 02:44:09,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:44:09,483 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:44:09,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:44:09,720 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:44:09,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:44:09,749 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:44:09,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:09 WrapperNode [2019-11-26 02:44:09,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:44:09,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:44:09,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:44:09,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:44:09,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:09" (1/1) ... [2019-11-26 02:44:09,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:09" (1/1) ... [2019-11-26 02:44:09,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:44:09,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:44:09,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:44:09,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:44:09,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:09" (1/1) ... [2019-11-26 02:44:09,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:09" (1/1) ... [2019-11-26 02:44:09,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:09" (1/1) ... [2019-11-26 02:44:09,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:09" (1/1) ... [2019-11-26 02:44:09,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:09" (1/1) ... [2019-11-26 02:44:09,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:09" (1/1) ... [2019-11-26 02:44:09,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:09" (1/1) ... [2019-11-26 02:44:09,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:44:09,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:44:09,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:44:09,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:44:09,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd642c89-56f7-4e53-ae62-b451b94e8c9e/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:44:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-26 02:44:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:44:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-26 02:44:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:44:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-26 02:44:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:44:09,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:44:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:44:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure append [2019-11-26 02:44:09,874 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2019-11-26 02:44:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:44:10,184 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:44:10,185 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-26 02:44:10,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:44:10 BoogieIcfgContainer [2019-11-26 02:44:10,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:44:10,186 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:44:10,196 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:44:10,207 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:44:10,211 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:44:10" (1/1) ... [2019-11-26 02:44:10,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:10,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:44:10,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2019-11-26 02:44:10,247 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-11-26 02:44:10,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:44:10,256 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:44:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:44:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:44:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:44:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:44:10,632 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2019-11-26 02:44:10,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:44:10 ImpRootNode [2019-11-26 02:44:10,664 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:44:10,664 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:44:10,664 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:44:10,664 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:44:10,665 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:44:10" (3/4) ... [2019-11-26 02:44:10,667 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:44:10,714 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fd642c89-56f7-4e53-ae62-b451b94e8c9e/bin/ukojak/witness.graphml [2019-11-26 02:44:10,718 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:44:10,721 INFO L168 Benchmark]: Toolchain (without parser) took 1267.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -133.8 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:10,723 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:44:10,725 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:10,726 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:44:10,726 INFO L168 Benchmark]: Boogie Preprocessor took 30.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:10,727 INFO L168 Benchmark]: RCFGBuilder took 370.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:10,727 INFO L168 Benchmark]: CodeCheck took 477.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:10,728 INFO L168 Benchmark]: Witness Printer took 54.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:10,736 INFO L335 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, 12 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int i = 1; [L37] struct list *l,m; [L38] l = &m [L39] l->next = 0 [L40] l->n = 0 VAL [i=1] [L42] CALL, EXPR append(l, 1) VAL [i=1] [L25] struct list *new_el; [L20] return malloc(8U); [L27] new_el = allocate_memory() [L29] new_el->n = n [L30] new_el->next = l [L32] return new_el; [L42] RET, EXPR append(l, 1) VAL [i=1] [L42] l = append(l, 1) [L43] CALL, EXPR append(l, 2) VAL [i=1] [L25] struct list *new_el; [L20] return malloc(8U); [L27] new_el = allocate_memory() [L29] new_el->n = n [L30] new_el->next = l [L32] return new_el; [L43] RET, EXPR append(l, 2) VAL [i=1] [L43] l = append(l, 2) [L48] EXPR l->next [L48] EXPR l->next->next [L48] EXPR l->next->next->n VAL [i=1] [L48] COND TRUE l->next->next->n == 0 [L8] __VERIFIER_error() VAL [i=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 293.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 370.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * CodeCheck took 477.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * Witness Printer took 54.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...