./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/list-simple/dll2c_remove_all_true-unreach-call_true-valid-memsafety.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_17ac760b-e668-459a-b399-356d5c62b6bd/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_17ac760b-e668-459a-b399-356d5c62b6bd/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_17ac760b-e668-459a-b399-356d5c62b6bd/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_17ac760b-e668-459a-b399-356d5c62b6bd/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/dll2c_remove_all_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_17ac760b-e668-459a-b399-356d5c62b6bd/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_17ac760b-e668-459a-b399-356d5c62b6bd/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 f8b5e0e0e65d6846584e1e0ff807dc6d17c7a0bd .................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 16:40:59,922 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:40:59,923 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:40:59,932 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:40:59,932 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:40:59,933 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:40:59,933 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:40:59,935 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:40:59,936 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:40:59,937 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:40:59,938 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:40:59,938 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:40:59,939 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:40:59,940 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:40:59,941 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:40:59,941 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:40:59,942 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:40:59,944 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:40:59,945 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:40:59,947 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:40:59,948 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:40:59,949 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:40:59,951 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:40:59,951 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:40:59,951 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:40:59,952 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:40:59,953 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:40:59,954 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:40:59,955 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:40:59,955 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:40:59,956 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:40:59,956 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:40:59,957 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:40:59,957 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:40:59,958 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:40:59,958 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:40:59,958 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_17ac760b-e668-459a-b399-356d5c62b6bd/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 16:40:59,970 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:40:59,971 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:40:59,972 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:40:59,972 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 16:40:59,972 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:40:59,972 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:40:59,973 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:40:59,973 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:40:59,973 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:40:59,973 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:40:59,973 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:40:59,973 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:40:59,974 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:40:59,974 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:40:59,974 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:40:59,974 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:40:59,974 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:40:59,974 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:40:59,975 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 16:40:59,975 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 16:40:59,975 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:40:59,975 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:40:59,975 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 16:40:59,975 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:40:59,976 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:40:59,976 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:40:59,976 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 16:40:59,976 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:40:59,976 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:40:59,976 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_17ac760b-e668-459a-b399-356d5c62b6bd/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 -> f8b5e0e0e65d6846584e1e0ff807dc6d17c7a0bd [2018-11-18 16:41:00,003 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:41:00,013 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:41:00,016 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:41:00,017 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:41:00,017 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:41:00,018 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_17ac760b-e668-459a-b399-356d5c62b6bd/bin-2019/ukojak/../../sv-benchmarks/c/list-simple/dll2c_remove_all_true-unreach-call_true-valid-memsafety.i [2018-11-18 16:41:00,061 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_17ac760b-e668-459a-b399-356d5c62b6bd/bin-2019/ukojak/data/e43c8d37b/af3ae2de55d64afe8f22be89ef735b6c/FLAGc52b04d28 [2018-11-18 16:41:00,432 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:41:00,433 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_17ac760b-e668-459a-b399-356d5c62b6bd/sv-benchmarks/c/list-simple/dll2c_remove_all_true-unreach-call_true-valid-memsafety.i [2018-11-18 16:41:00,443 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_17ac760b-e668-459a-b399-356d5c62b6bd/bin-2019/ukojak/data/e43c8d37b/af3ae2de55d64afe8f22be89ef735b6c/FLAGc52b04d28 [2018-11-18 16:41:00,819 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_17ac760b-e668-459a-b399-356d5c62b6bd/bin-2019/ukojak/data/e43c8d37b/af3ae2de55d64afe8f22be89ef735b6c [2018-11-18 16:41:00,821 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:41:00,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:41:00,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:41:00,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:41:00,825 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:41:00,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:41:00" (1/1) ... [2018-11-18 16:41:00,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dc90172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:41:00, skipping insertion in model container [2018-11-18 16:41:00,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:41:00" (1/1) ... [2018-11-18 16:41:00,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:41:00,862 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:41:01,052 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:41:01,059 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:41:01,131 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:41:01,163 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:41:01,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:41:01 WrapperNode [2018-11-18 16:41:01,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:41:01,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:41:01,164 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:41:01,164 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:41:01,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:41:01" (1/1) ... [2018-11-18 16:41:01,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:41:01" (1/1) ... [2018-11-18 16:41:01,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:41:01,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:41:01,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:41:01,191 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:41:01,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:41:01" (1/1) ... [2018-11-18 16:41:01,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:41:01" (1/1) ... [2018-11-18 16:41:01,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:41:01" (1/1) ... [2018-11-18 16:41:01,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:41:01" (1/1) ... [2018-11-18 16:41:01,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:41:01" (1/1) ... [2018-11-18 16:41:01,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:41:01" (1/1) ... [2018-11-18 16:41:01,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:41:01" (1/1) ... [2018-11-18 16:41:01,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:41:01,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:41:01,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:41:01,213 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:41:01,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:41:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17ac760b-e668-459a-b399-356d5c62b6bd/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 [2018-11-18 16:41:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:41:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 16:41:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2018-11-18 16:41:01,248 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2018-11-18 16:41:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 16:41:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 16:41:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:41:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:41:01,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:41:01,575 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:41:01,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:41:01 BoogieIcfgContainer [2018-11-18 16:41:01,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:41:01,576 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 16:41:01,576 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 16:41:01,583 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 16:41:01,583 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:41:01" (1/1) ... [2018-11-18 16:41:01,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:41:01,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:41:01,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2018-11-18 16:41:01,613 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2018-11-18 16:41:01,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 16:41:01,617 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:41:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:41:01,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:41:01,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:41:01,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2018-11-18 16:41:01,717 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-18 16:41:01,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 16:41:01,717 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:41:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:41:01,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:41:01,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:41:01,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 26 transitions. [2018-11-18 16:41:01,805 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2018-11-18 16:41:01,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 16:41:01,806 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:41:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:41:01,887 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 16:41:02,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:41:02,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 25 states and 29 transitions. [2018-11-18 16:41:02,033 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2018-11-18 16:41:02,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 16:41:02,034 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:41:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:41:02,089 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 16:41:02,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:41:02,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 27 states and 31 transitions. [2018-11-18 16:41:02,180 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2018-11-18 16:41:02,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 16:41:02,180 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:41:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:41:02,904 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 16:41:05,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:41:05,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 41 states and 59 transitions. [2018-11-18 16:41:05,073 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2018-11-18 16:41:05,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 16:41:05,074 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:41:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:41:05,322 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 16:41:07,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:41:07,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 52 states and 81 transitions. [2018-11-18 16:41:07,541 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 81 transitions. [2018-11-18 16:41:07,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 16:41:07,541 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:41:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:41:07,765 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-18 16:41:08,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:41:08,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 54 states and 85 transitions. [2018-11-18 16:41:08,251 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 85 transitions. [2018-11-18 16:41:08,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 16:41:08,252 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:41:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:41:08,276 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-18 16:41:08,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:41:08,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 24 states and 24 transitions. [2018-11-18 16:41:08,621 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-11-18 16:41:08,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:41:08,622 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2018-11-18 16:41:08,630 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-18 16:41:08,781 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 16:41:08,783 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 16:41:08,783 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 16:41:08,783 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 16:41:08,783 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 16:41:08,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 04:41:08 ImpRootNode [2018-11-18 16:41:08,784 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 16:41:08,784 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:41:08,784 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:41:08,784 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:41:08,785 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:41:01" (3/4) ... [2018-11-18 16:41:08,787 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 16:41:08,791 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure node_create [2018-11-18 16:41:08,794 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 16:41:08,794 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 16:41:08,794 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 16:41:08,795 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 16:41:08,832 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_17ac760b-e668-459a-b399-356d5c62b6bd/bin-2019/ukojak/witness.graphml [2018-11-18 16:41:08,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:41:08,833 INFO L168 Benchmark]: Toolchain (without parser) took 8011.02 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 356.5 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -193.2 MB). Peak memory consumption was 163.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:41:08,834 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:41:08,834 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2018-11-18 16:41:08,835 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.87 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. [2018-11-18 16:41:08,835 INFO L168 Benchmark]: Boogie Preprocessor took 21.41 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:41:08,835 INFO L168 Benchmark]: RCFGBuilder took 363.56 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: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:41:08,835 INFO L168 Benchmark]: CodeCheck took 7207.70 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 197.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -48.8 MB). Peak memory consumption was 148.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:41:08,836 INFO L168 Benchmark]: Witness Printer took 48.22 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:41:08,838 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, 30 locations, 1 error locations. SAFE Result, 7.0s OverallTime, 9 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4320 SDtfs, 1820 SDslu, 1800 SDs, 0 SdLazy, 5242 SolverSat, 1266 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1653 GetRequests, 1487 SyntacticMatches, 30 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6958 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 202 NumberOfCodeBlocks, 202 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 194 ConstructedInterpolants, 0 QuantifiedInterpolants, 35736 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 75/96 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: 616]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 340.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.87 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 21.41 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 363.56 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: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. * CodeCheck took 7207.70 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 197.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -48.8 MB). Peak memory consumption was 148.3 MB. Max. memory is 11.5 GB. * Witness Printer took 48.22 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...