./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_710287ba-4a8a-4d64-ac23-4b90af9cffa3/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_710287ba-4a8a-4d64-ac23-4b90af9cffa3/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_710287ba-4a8a-4d64-ac23-4b90af9cffa3/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_710287ba-4a8a-4d64-ac23-4b90af9cffa3/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_710287ba-4a8a-4d64-ac23-4b90af9cffa3/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_710287ba-4a8a-4d64-ac23-4b90af9cffa3/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 27142e71f3089c5c3b5bf4f358882e993f701ffc .................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-678e011 [2019-11-19 23:03:07,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:03:07,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:03:07,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:03:07,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:03:07,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:03:07,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:03:08,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:03:08,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:03:08,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:03:08,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:03:08,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:03:08,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:03:08,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:03:08,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:03:08,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:03:08,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:03:08,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:03:08,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:03:08,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:03:08,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:03:08,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:03:08,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:03:08,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:03:08,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:03:08,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:03:08,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:03:08,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:03:08,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:03:08,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:03:08,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:03:08,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:03:08,045 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:03:08,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:03:08,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:03:08,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:03:08,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:03:08,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:03:08,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:03:08,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:03:08,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:03:08,051 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_710287ba-4a8a-4d64-ac23-4b90af9cffa3/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-19 23:03:08,078 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:03:08,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:03:08,079 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-19 23:03:08,079 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-19 23:03:08,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:03:08,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:03:08,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:03:08,080 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:03:08,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:03:08,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:03:08,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:03:08,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:03:08,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:03:08,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:03:08,081 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:03:08,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:03:08,082 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:03:08,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:03:08,082 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-19 23:03:08,082 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-19 23:03:08,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:03:08,083 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:03:08,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-19 23:03:08,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:03:08,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:03:08,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:03:08,084 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-19 23:03:08,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 23:03:08,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:03:08,084 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_710287ba-4a8a-4d64-ac23-4b90af9cffa3/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 -> 27142e71f3089c5c3b5bf4f358882e993f701ffc [2019-11-19 23:03:08,283 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:03:08,301 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:03:08,305 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:03:08,306 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:03:08,308 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:03:08,309 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_710287ba-4a8a-4d64-ac23-4b90af9cffa3/bin/ukojak/../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i [2019-11-19 23:03:08,377 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_710287ba-4a8a-4d64-ac23-4b90af9cffa3/bin/ukojak/data/247cc74c7/2fcb29b2991f403e93d6978fce8da9e3/FLAG17ae9ee0b [2019-11-19 23:03:08,999 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:03:08,999 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_710287ba-4a8a-4d64-ac23-4b90af9cffa3/sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i [2019-11-19 23:03:09,019 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_710287ba-4a8a-4d64-ac23-4b90af9cffa3/bin/ukojak/data/247cc74c7/2fcb29b2991f403e93d6978fce8da9e3/FLAG17ae9ee0b [2019-11-19 23:03:09,287 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_710287ba-4a8a-4d64-ac23-4b90af9cffa3/bin/ukojak/data/247cc74c7/2fcb29b2991f403e93d6978fce8da9e3 [2019-11-19 23:03:09,290 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:03:09,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:03:09,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:03:09,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:03:09,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:03:09,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:03:09" (1/1) ... [2019-11-19 23:03:09,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46707d57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:03:09, skipping insertion in model container [2019-11-19 23:03:09,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:03:09" (1/1) ... [2019-11-19 23:03:09,308 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:03:09,365 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:03:09,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:03:09,830 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:03:09,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:03:09,971 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:03:09,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:03:09 WrapperNode [2019-11-19 23:03:09,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:03:09,973 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:03:09,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:03:09,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:03:09,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:03:09" (1/1) ... [2019-11-19 23:03:10,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:03:09" (1/1) ... [2019-11-19 23:03:10,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:03:10,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:03:10,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:03:10,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:03:10,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:03:09" (1/1) ... [2019-11-19 23:03:10,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:03:09" (1/1) ... [2019-11-19 23:03:10,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:03:09" (1/1) ... [2019-11-19 23:03:10,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:03:09" (1/1) ... [2019-11-19 23:03:10,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:03:09" (1/1) ... [2019-11-19 23:03:10,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:03:09" (1/1) ... [2019-11-19 23:03:10,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:03:09" (1/1) ... [2019-11-19 23:03:10,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:03:10,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:03:10,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:03:10,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:03:10,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:03:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_710287ba-4a8a-4d64-ac23-4b90af9cffa3/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 [2019-11-19 23:03:10,168 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-19 23:03:10,169 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-19 23:03:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-19 23:03:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure _get_nondet_int [2019-11-19 23:03:10,169 INFO L138 BoogieDeclarations]: Found implementation of procedure _get_nondet_int [2019-11-19 23:03:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 23:03:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-19 23:03:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-19 23:03:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 23:03:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-19 23:03:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:03:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:03:10,348 INFO L689 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-19 23:03:10,710 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:03:10,710 INFO L285 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-19 23:03:10,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:03:10 BoogieIcfgContainer [2019-11-19 23:03:10,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:03:10,712 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-19 23:03:10,712 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-19 23:03:10,722 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-19 23:03:10,722 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:03:10" (1/1) ... [2019-11-19 23:03:10,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:03:10,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:03:10,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 36 states and 50 transitions. [2019-11-19 23:03:10,768 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2019-11-19 23:03:10,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-19 23:03:10,775 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:03:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:03:10,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 23:03:10,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:03:10,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 36 states and 46 transitions. [2019-11-19 23:03:10,922 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2019-11-19 23:03:10,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-19 23:03:10,923 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:03:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:03:11,051 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-19 23:03:11,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:03:11,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 38 states and 49 transitions. [2019-11-19 23:03:11,243 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2019-11-19 23:03:11,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-19 23:03:11,244 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:03:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:03:11,452 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-19 23:03:12,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:03:12,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 42 states and 57 transitions. [2019-11-19 23:03:12,067 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 57 transitions. [2019-11-19 23:03:12,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-19 23:03:12,069 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:03:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:03:12,303 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 23:03:13,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:03:13,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 46 states and 62 transitions. [2019-11-19 23:03:13,419 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 62 transitions. [2019-11-19 23:03:13,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-19 23:03:13,421 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:03:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:03:13,725 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-19 23:03:15,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:03:15,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 50 states and 69 transitions. [2019-11-19 23:03:15,915 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2019-11-19 23:03:15,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-19 23:03:15,918 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:03:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:03:17,447 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-19 23:03:26,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:03:26,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 75 states and 116 transitions. [2019-11-19 23:03:26,141 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 116 transitions. [2019-11-19 23:03:26,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-19 23:03:26,147 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:03:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:03:27,711 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-19 23:03:37,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:03:37,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 92 states and 144 transitions. [2019-11-19 23:03:37,139 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 144 transitions. [2019-11-19 23:03:37,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-19 23:03:37,141 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:03:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:03:37,195 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-19 23:03:38,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 23:03:38,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 94 states and 150 transitions. [2019-11-19 23:03:38,353 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 150 transitions. [2019-11-19 23:03:38,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-19 23:03:38,355 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 23:03:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:03:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:03:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:03:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:03:38,568 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2019-11-19 23:03:38,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 11:03:38 ImpRootNode [2019-11-19 23:03:38,626 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-19 23:03:38,627 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:03:38,627 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:03:38,627 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:03:38,628 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:03:10" (3/4) ... [2019-11-19 23:03:38,630 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 23:03:38,722 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_710287ba-4a8a-4d64-ac23-4b90af9cffa3/bin/ukojak/witness.graphml [2019-11-19 23:03:38,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:03:38,725 INFO L168 Benchmark]: Toolchain (without parser) took 29432.52 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 462.9 MB). Free memory was 946.1 MB in the beginning and 974.0 MB in the end (delta: -27.9 MB). Peak memory consumption was 435.0 MB. Max. memory is 11.5 GB. [2019-11-19 23:03:38,725 INFO L168 Benchmark]: CDTParser took 0.24 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. [2019-11-19 23:03:38,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -152.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-19 23:03:38,726 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.00 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. [2019-11-19 23:03:38,727 INFO L168 Benchmark]: Boogie Preprocessor took 49.16 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. [2019-11-19 23:03:38,727 INFO L168 Benchmark]: RCFGBuilder took 610.20 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: 44.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:03:38,728 INFO L168 Benchmark]: CodeCheck took 27914.55 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 338.7 MB). Free memory was 1.1 GB in the beginning and 978.5 MB in the end (delta: 75.0 MB). Peak memory consumption was 413.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:03:38,729 INFO L168 Benchmark]: Witness Printer took 95.92 ms. Allocated memory is still 1.5 GB. Free memory was 978.5 MB in the beginning and 974.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 11.5 GB. [2019-11-19 23:03:38,732 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 3 procedures, 37 locations, 1 error locations. Result: UNSAFE, OverallTime: 27.8s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4592 SDtfs, 1368 SDslu, 1168 SDs, 0 SdLazy, 10652 SolverSat, 3468 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1934 GetRequests, 1643 SyntacticMatches, 25 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24678 ImplicationChecksByTransitivity, 25.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 274 NumberOfCodeBlocks, 274 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 230 ConstructedInterpolants, 0 QuantifiedInterpolants, 59447 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 50/92 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: 630]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L616] CALL, EXPR _get_nondet_int(2, 5) VAL [\old(from)=2, \old(until)=5] [L609] int len = from; VAL [\old(from)=2, \old(until)=5, from=2, len=2, until=5] [L610] len < until && __VERIFIER_nondet_int() [L610] len < until && __VERIFIER_nondet_int() VAL [\old(from)=2, \old(until)=5, __VERIFIER_nondet_int()=0, from=2, len=2, len < until && __VERIFIER_nondet_int()=0, until=5] [L610] COND FALSE !(len < until && __VERIFIER_nondet_int()) [L613] return len; [L616] RET, EXPR _get_nondet_int(2, 5) [L616] const int len = _get_nondet_int(2, 5); [L617] SLL s = sll_create(len); [L564] SLL head = ((void *)0); [L565] EXPR len-- [L565] COND TRUE len-- > 0 [L566] SLL new_head = (SLL) malloc(sizeof(struct node)); [L567] COND FALSE !(((void *)0) == new_head) [L570] new_head->next = head [L571] head = new_head [L565] EXPR len-- [L565] COND TRUE len-- > 0 [L566] SLL new_head = (SLL) malloc(sizeof(struct node)); [L567] COND FALSE !(((void *)0) == new_head) [L570] new_head->next = head [L571] head = new_head [L565] EXPR len-- [L565] COND FALSE !(len-- > 0) [L573] return head; [L617] SLL s = sll_create(len); [L618] CALL, EXPR _get_nondet_int(0, len - 1) VAL [\old(from)=0, \old(until)=1] [L609] int len = from; VAL [\old(from)=0, \old(until)=1, from=0, len=0, until=1] [L610] len < until && __VERIFIER_nondet_int() [L610] len < until && __VERIFIER_nondet_int() VAL [\old(from)=0, \old(until)=1, __VERIFIER_nondet_int()=-1, from=0, len=0, len < until && __VERIFIER_nondet_int()=1, until=1] [L610] COND TRUE len < until && __VERIFIER_nondet_int() [L611] len++ VAL [\old(from)=0, \old(until)=1, from=0, len=1, until=1] [L610] len < until && __VERIFIER_nondet_int() VAL [\old(from)=0, \old(until)=1, __VERIFIER_nondet_int()=0, from=0, len=1, len < until && __VERIFIER_nondet_int()=0, until=1] [L610] COND FALSE !(len < until && __VERIFIER_nondet_int()) [L613] return len; [L618] RET, EXPR _get_nondet_int(0, len - 1) [L618] const int k = _get_nondet_int(0, len - 1); [L619] int i = 0; [L620] i < k && __VERIFIER_nondet_int() [L620] i < k && __VERIFIER_nondet_int() [L620] COND FALSE !(i < k && __VERIFIER_nondet_int()) [L625] EXPR \read(s) [L576] int len = 0; [L577] COND TRUE \read(head) [L578] len++ [L579] EXPR head->next [L579] head = head->next [L577] COND TRUE \read(head) [L578] len++ [L579] EXPR head->next [L579] head = head->next [L577] COND FALSE !(\read(head)) [L581] return len; [L625] COND TRUE k + len != sll_length(s) [L630] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 680.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -152.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 79.00 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 49.16 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. * RCFGBuilder took 610.20 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: 44.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 11.5 GB. * CodeCheck took 27914.55 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 338.7 MB). Free memory was 1.1 GB in the beginning and 978.5 MB in the end (delta: 75.0 MB). Peak memory consumption was 413.7 MB. Max. memory is 11.5 GB. * Witness Printer took 95.92 ms. Allocated memory is still 1.5 GB. Free memory was 978.5 MB in the beginning and 974.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...