./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/list-properties/simple_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ffd5424c-4f73-49e7-8437-f9175a258edb/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ffd5424c-4f73-49e7-8437-f9175a258edb/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ffd5424c-4f73-49e7-8437-f9175a258edb/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ffd5424c-4f73-49e7-8437-f9175a258edb/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/list-properties/simple_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ffd5424c-4f73-49e7-8437-f9175a258edb/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ffd5424c-4f73-49e7-8437-f9175a258edb/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 dfa29c268b4cea6214da8605085222e43705cbc6 ................................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-11-10 04:52:24,035 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:52:24,036 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:52:24,044 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:52:24,044 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:52:24,045 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:52:24,046 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:52:24,047 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:52:24,048 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:52:24,049 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:52:24,049 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:52:24,050 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:52:24,050 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:52:24,051 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:52:24,051 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:52:24,052 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:52:24,052 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:52:24,054 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:52:24,055 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:52:24,056 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:52:24,057 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:52:24,057 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:52:24,059 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:52:24,059 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:52:24,059 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:52:24,060 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:52:24,061 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:52:24,061 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:52:24,062 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:52:24,062 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:52:24,062 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:52:24,063 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:52:24,063 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:52:24,063 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:52:24,064 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:52:24,064 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:52:24,064 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ffd5424c-4f73-49e7-8437-f9175a258edb/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 04:52:24,074 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:52:24,075 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:52:24,075 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:52:24,075 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 04:52:24,076 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 04:52:24,076 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 04:52:24,076 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:52:24,076 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:52:24,076 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:52:24,076 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:52:24,076 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:52:24,077 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:52:24,077 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:52:24,077 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:52:24,077 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:52:24,077 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:52:24,077 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:52:24,077 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 04:52:24,077 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 04:52:24,078 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:52:24,078 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:52:24,078 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 04:52:24,078 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:52:24,078 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:52:24,078 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:52:24,078 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 04:52:24,078 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:52:24,079 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 04:52:24,079 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_ffd5424c-4f73-49e7-8437-f9175a258edb/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 -> dfa29c268b4cea6214da8605085222e43705cbc6 [2018-11-10 04:52:24,101 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:52:24,108 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:52:24,109 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:52:24,110 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:52:24,111 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:52:24,111 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ffd5424c-4f73-49e7-8437-f9175a258edb/bin-2019/ukojak/../../sv-benchmarks/c/list-properties/simple_false-unreach-call_false-valid-memcleanup.i [2018-11-10 04:52:24,149 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ffd5424c-4f73-49e7-8437-f9175a258edb/bin-2019/ukojak/data/2ce30b01a/29c269ada01645e7a497ddc70df3cbb1/FLAG44a855f2e [2018-11-10 04:52:24,578 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:52:24,578 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ffd5424c-4f73-49e7-8437-f9175a258edb/sv-benchmarks/c/list-properties/simple_false-unreach-call_false-valid-memcleanup.i [2018-11-10 04:52:24,584 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ffd5424c-4f73-49e7-8437-f9175a258edb/bin-2019/ukojak/data/2ce30b01a/29c269ada01645e7a497ddc70df3cbb1/FLAG44a855f2e [2018-11-10 04:52:24,592 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ffd5424c-4f73-49e7-8437-f9175a258edb/bin-2019/ukojak/data/2ce30b01a/29c269ada01645e7a497ddc70df3cbb1 [2018-11-10 04:52:24,594 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:52:24,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:52:24,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:52:24,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:52:24,598 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:52:24,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:52:24" (1/1) ... [2018-11-10 04:52:24,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e18afb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:52:24, skipping insertion in model container [2018-11-10 04:52:24,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:52:24" (1/1) ... [2018-11-10 04:52:24,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:52:24,631 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:52:24,812 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:52:24,819 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:52:24,847 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:52:24,877 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:52:24,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:52:24 WrapperNode [2018-11-10 04:52:24,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:52:24,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:52:24,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:52:24,878 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:52:24,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:52:24" (1/1) ... [2018-11-10 04:52:24,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:52:24" (1/1) ... [2018-11-10 04:52:24,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:52:24,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:52:24,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:52:24,950 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:52:24,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:52:24" (1/1) ... [2018-11-10 04:52:24,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:52:24" (1/1) ... [2018-11-10 04:52:24,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:52:24" (1/1) ... [2018-11-10 04:52:24,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:52:24" (1/1) ... [2018-11-10 04:52:24,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:52:24" (1/1) ... [2018-11-10 04:52:24,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:52:24" (1/1) ... [2018-11-10 04:52:24,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:52:24" (1/1) ... [2018-11-10 04:52:24,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:52:24,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:52:24,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:52:24,966 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:52:24,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:52:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ffd5424c-4f73-49e7-8437-f9175a258edb/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 [2018-11-10 04:52:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 04:52:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-10 04:52:25,004 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-11-10 04:52:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 04:52:25,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 04:52:25,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 04:52:25,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:52:25,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:52:25,244 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:52:25,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:52:25 BoogieIcfgContainer [2018-11-10 04:52:25,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:52:25,246 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 04:52:25,246 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 04:52:25,253 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 04:52:25,253 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:52:25" (1/1) ... [2018-11-10 04:52:25,259 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:52:25,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 04:52:25,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2018-11-10 04:52:25,281 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2018-11-10 04:52:25,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 04:52:25,283 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 04:52:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:52:25,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:52:25,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 04:52:25,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2018-11-10 04:52:25,359 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-10 04:52:25,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 04:52:25,359 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 04:52:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:52:25,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:52:25,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 04:52:25,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2018-11-10 04:52:25,503 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2018-11-10 04:52:25,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 04:52:25,503 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 04:52:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:52:25,665 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:52:26,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 04:52:26,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 35 states and 49 transitions. [2018-11-10 04:52:26,137 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2018-11-10 04:52:26,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 04:52:26,139 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 04:52:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:52:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:52:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:52:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:52:26,208 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2018-11-10 04:52:26,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 04:52:26 ImpRootNode [2018-11-10 04:52:26,234 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 04:52:26,234 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:52:26,234 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:52:26,234 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:52:26,235 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:52:25" (3/4) ... [2018-11-10 04:52:26,237 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 04:52:26,278 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ffd5424c-4f73-49e7-8437-f9175a258edb/bin-2019/ukojak/witness.graphml [2018-11-10 04:52:26,278 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:52:26,278 INFO L168 Benchmark]: Toolchain (without parser) took 1683.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 957.5 MB in the beginning and 990.2 MB in the end (delta: -32.6 MB). Peak memory consumption was 124.1 MB. Max. memory is 11.5 GB. [2018-11-10 04:52:26,280 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:52:26,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.05 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 929.6 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-11-10 04:52:26,281 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 929.6 MB in the beginning and 1.2 GB in the end (delta: -221.5 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-10 04:52:26,281 INFO L168 Benchmark]: Boogie Preprocessor took 15.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:52:26,282 INFO L168 Benchmark]: RCFGBuilder took 279.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2018-11-10 04:52:26,282 INFO L168 Benchmark]: CodeCheck took 988.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.5 MB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 11.5 GB. [2018-11-10 04:52:26,283 INFO L168 Benchmark]: Witness Printer took 43.96 ms. Allocated memory is still 1.2 GB. Free memory was 993.5 MB in the beginning and 990.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-10 04:52:26,286 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, 37 locations, 1 error locations. UNSAFE Result, 0.9s OverallTime, 4 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 84 SDtfs, 52 SDslu, 56 SDs, 0 SdLazy, 170 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 254 GetRequests, 225 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 2253 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 1/3 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 - CounterExampleResult [Line: 644]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L627] EXPR, FCALL malloc(sizeof(struct node)) [L627] List a = (List) malloc(sizeof(struct node)); [L628] COND FALSE !(a == 0) [L629] List t; [L630] List p = a; [L631] FCALL a->h = 2 [L632] COND TRUE __VERIFIER_nondet_int() [L633] FCALL p->h = 1 [L634] EXPR, FCALL malloc(sizeof(struct node)) [L634] t = (List) malloc(sizeof(struct node)) [L635] COND FALSE !(t == 0) [L636] FCALL p->n = t [L637] EXPR, FCALL p->n [L637] p = p->n [L632] COND FALSE !(__VERIFIER_nondet_int()) [L639] FCALL p->h = 2 [L640] FCALL p->n = 0 [L641] p = a [L642] COND TRUE p!=0 [L643] CALL, EXPR p->h [L643] RET, EXPR p->h [L643] COND TRUE p->h != 2 [L644] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 282.05 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 929.6 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 929.6 MB in the beginning and 1.2 GB in the end (delta: -221.5 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 279.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * CodeCheck took 988.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.5 MB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 11.5 GB. * Witness Printer took 43.96 ms. Allocated memory is still 1.2 GB. Free memory was 993.5 MB in the beginning and 990.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...