./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-data/quick_sort_split_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cd52b4ea-7d54-47fd-8816-ccd316f7c79d/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cd52b4ea-7d54-47fd-8816-ccd316f7c79d/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cd52b4ea-7d54-47fd-8816-ccd316f7c79d/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cd52b4ea-7d54-47fd-8816-ccd316f7c79d/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-data/quick_sort_split_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cd52b4ea-7d54-47fd-8816-ccd316f7c79d/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cd52b4ea-7d54-47fd-8816-ccd316f7c79d/bin-2019/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 9a9cf4ff5024af4bea046a077f81b398a029046b ............................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 03:20:57,593 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 03:20:57,594 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 03:20:57,600 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 03:20:57,600 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 03:20:57,600 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 03:20:57,601 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 03:20:57,602 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 03:20:57,604 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 03:20:57,604 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 03:20:57,605 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 03:20:57,605 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 03:20:57,606 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 03:20:57,606 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 03:20:57,607 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 03:20:57,608 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 03:20:57,608 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 03:20:57,609 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 03:20:57,611 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 03:20:57,611 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 03:20:57,612 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 03:20:57,613 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 03:20:57,615 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 03:20:57,615 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 03:20:57,615 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 03:20:57,616 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 03:20:57,616 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 03:20:57,617 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 03:20:57,617 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 03:20:57,618 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 03:20:57,618 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 03:20:57,619 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 03:20:57,619 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 03:20:57,619 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 03:20:57,620 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 03:20:57,620 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 03:20:57,620 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cd52b4ea-7d54-47fd-8816-ccd316f7c79d/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-23 03:20:57,628 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 03:20:57,628 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 03:20:57,629 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 03:20:57,629 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 03:20:57,630 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 03:20:57,630 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 03:20:57,630 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 03:20:57,630 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 03:20:57,630 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 03:20:57,630 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 03:20:57,631 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 03:20:57,631 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 03:20:57,631 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 03:20:57,631 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 03:20:57,631 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 03:20:57,631 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 03:20:57,631 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 03:20:57,631 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 03:20:57,632 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 03:20:57,632 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 03:20:57,632 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 03:20:57,632 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 03:20:57,632 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 03:20:57,632 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 03:20:57,633 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 03:20:57,633 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 03:20:57,633 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 03:20:57,633 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 03:20:57,633 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 03:20:57,633 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_cd52b4ea-7d54-47fd-8816-ccd316f7c79d/bin-2019/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 -> 9a9cf4ff5024af4bea046a077f81b398a029046b [2018-11-23 03:20:57,656 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 03:20:57,666 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 03:20:57,668 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 03:20:57,669 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 03:20:57,670 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 03:20:57,670 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cd52b4ea-7d54-47fd-8816-ccd316f7c79d/bin-2019/ukojak/../../sv-benchmarks/c/heap-data/quick_sort_split_true-unreach-call.i [2018-11-23 03:20:57,711 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cd52b4ea-7d54-47fd-8816-ccd316f7c79d/bin-2019/ukojak/data/6843879d5/89e294794e0f48f79385541a602c0b3f/FLAG27073a4ee [2018-11-23 03:20:58,073 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 03:20:58,074 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cd52b4ea-7d54-47fd-8816-ccd316f7c79d/sv-benchmarks/c/heap-data/quick_sort_split_true-unreach-call.i [2018-11-23 03:20:58,083 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cd52b4ea-7d54-47fd-8816-ccd316f7c79d/bin-2019/ukojak/data/6843879d5/89e294794e0f48f79385541a602c0b3f/FLAG27073a4ee [2018-11-23 03:20:58,469 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cd52b4ea-7d54-47fd-8816-ccd316f7c79d/bin-2019/ukojak/data/6843879d5/89e294794e0f48f79385541a602c0b3f [2018-11-23 03:20:58,471 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 03:20:58,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 03:20:58,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 03:20:58,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 03:20:58,476 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 03:20:58,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:20:58" (1/1) ... [2018-11-23 03:20:58,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@222d3bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:58, skipping insertion in model container [2018-11-23 03:20:58,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:20:58" (1/1) ... [2018-11-23 03:20:58,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 03:20:58,511 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 03:20:58,697 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:20:58,704 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 03:20:58,735 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:20:58,813 INFO L195 MainTranslator]: Completed translation [2018-11-23 03:20:58,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:58 WrapperNode [2018-11-23 03:20:58,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 03:20:58,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 03:20:58,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 03:20:58,814 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 03:20:58,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:58" (1/1) ... [2018-11-23 03:20:58,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:58" (1/1) ... [2018-11-23 03:20:58,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 03:20:58,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 03:20:58,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 03:20:58,843 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 03:20:58,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:58" (1/1) ... [2018-11-23 03:20:58,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:58" (1/1) ... [2018-11-23 03:20:58,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:58" (1/1) ... [2018-11-23 03:20:58,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:58" (1/1) ... [2018-11-23 03:20:58,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:58" (1/1) ... [2018-11-23 03:20:58,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:58" (1/1) ... [2018-11-23 03:20:58,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:58" (1/1) ... [2018-11-23 03:20:58,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 03:20:58,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 03:20:58,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 03:20:58,864 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 03:20:58,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd52b4ea-7d54-47fd-8816-ccd316f7c79d/bin-2019/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 [2018-11-23 03:20:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 03:20:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 03:20:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 03:20:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 03:20:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 03:20:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 03:20:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 03:20:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_list [2018-11-23 03:20:58,901 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_list [2018-11-23 03:20:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 03:20:58,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 03:20:59,174 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 03:20:59,175 INFO L280 CfgBuilder]: Removed 10 assue(true) statements. [2018-11-23 03:20:59,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:20:59 BoogieIcfgContainer [2018-11-23 03:20:59,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 03:20:59,175 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 03:20:59,175 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 03:20:59,185 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 03:20:59,185 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:20:59" (1/1) ... [2018-11-23 03:20:59,192 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:20:59,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:20:59,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2018-11-23 03:20:59,214 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2018-11-23 03:20:59,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 03:20:59,217 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:20:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:20:59,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:20:59,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:20:59,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2018-11-23 03:20:59,299 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2018-11-23 03:20:59,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 03:20:59,299 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:20:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:20:59,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:20:59,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:20:59,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2018-11-23 03:20:59,374 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2018-11-23 03:20:59,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 03:20:59,375 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:20:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:20:59,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:20:59,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:20:59,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2018-11-23 03:20:59,489 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2018-11-23 03:20:59,489 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 03:20:59,489 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2018-11-23 03:20:59,496 INFO L775 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2018-11-23 03:20:59,529 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 03:20:59,532 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 03:20:59,533 INFO L579 CodeCheckObserver]: Invariant with dag size 10 [2018-11-23 03:20:59,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 03:20:59 ImpRootNode [2018-11-23 03:20:59,541 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 03:20:59,541 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 03:20:59,541 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 03:20:59,541 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 03:20:59,542 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:20:59" (3/4) ... [2018-11-23 03:20:59,544 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 03:20:59,549 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure append_to_list [2018-11-23 03:20:59,552 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-23 03:20:59,552 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 03:20:59,553 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 03:20:59,591 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cd52b4ea-7d54-47fd-8816-ccd316f7c79d/bin-2019/ukojak/witness.graphml [2018-11-23 03:20:59,591 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 03:20:59,591 INFO L168 Benchmark]: Toolchain (without parser) took 1119.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 956.6 MB in the beginning and 1.0 GB in the end (delta: -79.1 MB). Peak memory consumption was 47.2 MB. Max. memory is 11.5 GB. [2018-11-23 03:20:59,593 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:20:59,593 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -160.6 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-11-23 03:20:59,594 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.09 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:20:59,594 INFO L168 Benchmark]: Boogie Preprocessor took 20.98 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. [2018-11-23 03:20:59,594 INFO L168 Benchmark]: RCFGBuilder took 311.05 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: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2018-11-23 03:20:59,595 INFO L168 Benchmark]: CodeCheck took 365.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-23 03:20:59,595 INFO L168 Benchmark]: Witness Printer took 49.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 03:20:59,598 INFO L336 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, 28 locations, 2 error locations. SAFE Result, 0.2s OverallTime, 4 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 SDtfs, 28 SDslu, 16 SDs, 0 SdLazy, 54 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 177 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 599]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 594]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((high == 0 && 0 == high) && 0 == low) && 0 == low * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 340.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -160.6 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.09 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.98 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 311.05 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: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * CodeCheck took 365.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 49.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 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 correct! Received shutdown request...