./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_61babed1-4d76-42e4-81c6-3a523cf14097/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_61babed1-4d76-42e4-81c6-3a523cf14097/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_61babed1-4d76-42e4-81c6-3a523cf14097/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_61babed1-4d76-42e4-81c6-3a523cf14097/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_61babed1-4d76-42e4-81c6-3a523cf14097/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_61babed1-4d76-42e4-81c6-3a523cf14097/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 adee0aad8018029b1a093d0ddfc0de44abfd0e03 ................................................................................................................................................................................................................................ 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 0.1.25-f470102 [2019-12-01 14:06:10,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 14:06:10,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 14:06:10,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 14:06:10,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 14:06:10,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 14:06:10,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 14:06:10,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 14:06:10,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 14:06:10,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 14:06:10,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 14:06:10,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 14:06:10,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 14:06:10,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 14:06:10,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 14:06:10,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 14:06:10,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 14:06:10,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 14:06:10,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 14:06:10,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 14:06:10,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 14:06:10,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 14:06:10,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 14:06:10,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 14:06:10,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 14:06:10,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 14:06:10,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 14:06:10,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 14:06:10,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 14:06:10,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 14:06:10,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 14:06:10,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 14:06:10,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 14:06:10,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 14:06:10,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 14:06:10,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 14:06:10,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 14:06:10,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 14:06:10,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 14:06:10,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 14:06:10,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 14:06:10,217 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_61babed1-4d76-42e4-81c6-3a523cf14097/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-12-01 14:06:10,226 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 14:06:10,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 14:06:10,227 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-01 14:06:10,227 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-01 14:06:10,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 14:06:10,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 14:06:10,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 14:06:10,228 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-01 14:06:10,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 14:06:10,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-01 14:06:10,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 14:06:10,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-01 14:06:10,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 14:06:10,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-01 14:06:10,229 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-01 14:06:10,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-01 14:06:10,229 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 14:06:10,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-01 14:06:10,229 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 14:06:10,229 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 14:06:10,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 14:06:10,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 14:06:10,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 14:06:10,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 14:06:10,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 14:06:10,230 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-01 14:06:10,230 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 14:06:10,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 14:06:10,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-01 14:06:10,231 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_61babed1-4d76-42e4-81c6-3a523cf14097/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 -> adee0aad8018029b1a093d0ddfc0de44abfd0e03 [2019-12-01 14:06:10,328 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 14:06:10,336 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 14:06:10,339 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 14:06:10,341 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 14:06:10,341 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 14:06:10,342 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_61babed1-4d76-42e4-81c6-3a523cf14097/bin/ukojak/../../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2019-12-01 14:06:10,389 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_61babed1-4d76-42e4-81c6-3a523cf14097/bin/ukojak/data/d62b8af38/6bdc74bd37d24cd2ab183a44590df2d6/FLAGb567a6fc5 [2019-12-01 14:06:10,739 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 14:06:10,739 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_61babed1-4d76-42e4-81c6-3a523cf14097/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2019-12-01 14:06:10,747 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_61babed1-4d76-42e4-81c6-3a523cf14097/bin/ukojak/data/d62b8af38/6bdc74bd37d24cd2ab183a44590df2d6/FLAGb567a6fc5 [2019-12-01 14:06:10,756 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_61babed1-4d76-42e4-81c6-3a523cf14097/bin/ukojak/data/d62b8af38/6bdc74bd37d24cd2ab183a44590df2d6 [2019-12-01 14:06:10,757 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 14:06:10,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 14:06:10,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 14:06:10,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 14:06:10,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 14:06:10,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:06:10" (1/1) ... [2019-12-01 14:06:10,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a2ff042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:06:10, skipping insertion in model container [2019-12-01 14:06:10,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:06:10" (1/1) ... [2019-12-01 14:06:10,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 14:06:10,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 14:06:11,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 14:06:11,019 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 14:06:11,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 14:06:11,076 INFO L208 MainTranslator]: Completed translation [2019-12-01 14:06:11,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:06:11 WrapperNode [2019-12-01 14:06:11,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 14:06:11,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 14:06:11,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 14:06:11,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 14:06:11,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:06:11" (1/1) ... [2019-12-01 14:06:11,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:06:11" (1/1) ... [2019-12-01 14:06:11,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 14:06:11,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 14:06:11,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 14:06:11,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 14:06:11,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:06:11" (1/1) ... [2019-12-01 14:06:11,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:06:11" (1/1) ... [2019-12-01 14:06:11,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:06:11" (1/1) ... [2019-12-01 14:06:11,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:06:11" (1/1) ... [2019-12-01 14:06:11,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:06:11" (1/1) ... [2019-12-01 14:06:11,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:06:11" (1/1) ... [2019-12-01 14:06:11,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:06:11" (1/1) ... [2019-12-01 14:06:11,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 14:06:11,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 14:06:11,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 14:06:11,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 14:06:11,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:06:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61babed1-4d76-42e4-81c6-3a523cf14097/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 [2019-12-01 14:06:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-01 14:06:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-01 14:06:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-01 14:06:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-01 14:06:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-01 14:06:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-01 14:06:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 14:06:11,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 14:06:11,396 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 14:06:11,396 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-01 14:06:11,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:06:11 BoogieIcfgContainer [2019-12-01 14:06:11,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 14:06:11,397 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 14:06:11,397 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 14:06:11,404 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 14:06:11,405 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:06:11" (1/1) ... [2019-12-01 14:06:11,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 14:06:11,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 14:06:11,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2019-12-01 14:06:11,433 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2019-12-01 14:06:11,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 14:06:11,435 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 14:06:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 14:06:11,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 14:06:11,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 14:06:11,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2019-12-01 14:06:11,529 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2019-12-01 14:06:11,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-01 14:06:11,530 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 14:06:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 14:06:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 14:06:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 14:06:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 14:06:11,645 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2019-12-01 14:06:11,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 02:06:11 ImpRootNode [2019-12-01 14:06:11,665 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 14:06:11,665 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 14:06:11,665 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 14:06:11,665 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 14:06:11,665 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:06:11" (3/4) ... [2019-12-01 14:06:11,667 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-01 14:06:11,698 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_61babed1-4d76-42e4-81c6-3a523cf14097/bin/ukojak/witness.graphml [2019-12-01 14:06:11,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 14:06:11,699 INFO L168 Benchmark]: Toolchain (without parser) took 940.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.8 MB). Free memory was 938.1 MB in the beginning and 1.0 GB in the end (delta: -67.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2019-12-01 14:06:11,700 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 14:06:11,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.8 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -126.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-01 14:06:11,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.20 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 14:06:11,701 INFO L168 Benchmark]: Boogie Preprocessor took 21.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-01 14:06:11,701 INFO L168 Benchmark]: RCFGBuilder took 268.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. [2019-12-01 14:06:11,702 INFO L168 Benchmark]: CodeCheck took 267.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-12-01 14:06:11,702 INFO L168 Benchmark]: Witness Printer took 33.12 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 14:06:11,704 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 1 procedures, 21 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 19 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1042]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L988] SLL* head = malloc(sizeof(SLL)); [L989] head->next = ((void*)0) [L990] head->data = 0 [L992] SLL* x = head; [L995] COND FALSE !(__VERIFIER_nondet_int()) [L1005] COND TRUE __VERIFIER_nondet_int() [L1006] x = malloc(sizeof(SLL)) [L1007] x->data = 1 [L1008] x->next = head [L1009] head = x [L1029] x = head [L1032] EXPR x->data [L1032] COND FALSE !(x->data != 1) [L1038] EXPR x->next [L1038] x = x->next [L1039] COND TRUE \read(*x) [L1041] EXPR x->data [L1041] COND TRUE x->data != 1 [L1042] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 317.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.8 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -126.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.20 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 268.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. * CodeCheck took 267.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 33.12 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...