./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert_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_103d55c7-a215-460b-9268-428621c5bd86/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_103d55c7-a215-460b-9268-428621c5bd86/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_103d55c7-a215-460b-9268-428621c5bd86/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_103d55c7-a215-460b-9268-428621c5bd86/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_103d55c7-a215-460b-9268-428621c5bd86/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_103d55c7-a215-460b-9268-428621c5bd86/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 1b97bc973900e2f9596f533e03f1df56d5945f81 ............................................................................................................................................................................................................................................................................................................................... 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 [2018-10-26 23:24:20,016 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:24:20,018 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:24:20,029 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:24:20,030 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:24:20,031 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:24:20,034 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:24:20,035 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:24:20,039 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:24:20,039 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:24:20,040 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:24:20,040 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:24:20,041 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:24:20,041 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:24:20,044 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:24:20,050 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:24:20,051 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:24:20,052 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:24:20,053 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:24:20,057 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:24:20,058 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:24:20,058 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:24:20,060 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:24:20,060 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:24:20,060 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:24:20,061 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:24:20,061 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:24:20,065 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:24:20,066 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:24:20,068 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:24:20,069 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:24:20,070 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:24:20,071 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:24:20,072 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:24:20,073 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:24:20,074 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:24:20,075 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_103d55c7-a215-460b-9268-428621c5bd86/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-26 23:24:20,092 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:24:20,092 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:24:20,093 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:24:20,094 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 23:24:20,094 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 23:24:20,096 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 23:24:20,096 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:24:20,096 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:24:20,096 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:24:20,096 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:24:20,096 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:24:20,096 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:24:20,097 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:24:20,097 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:24:20,097 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:24:20,097 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:24:20,097 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:24:20,097 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-26 23:24:20,097 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-26 23:24:20,098 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:24:20,098 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:24:20,098 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-26 23:24:20,098 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:24:20,098 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:24:20,098 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:24:20,098 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-26 23:24:20,098 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:24:20,099 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:24:20,099 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_103d55c7-a215-460b-9268-428621c5bd86/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 -> 1b97bc973900e2f9596f533e03f1df56d5945f81 [2018-10-26 23:24:20,134 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:24:20,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:24:20,158 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:24:20,160 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:24:20,160 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:24:20,160 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_103d55c7-a215-460b-9268-428621c5bd86/bin-2019/ukojak/../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert_false-unreach-call_false-valid-memcleanup.i [2018-10-26 23:24:20,211 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_103d55c7-a215-460b-9268-428621c5bd86/bin-2019/ukojak/data/cd4bfc1ba/58d451e2c520451fbcc9fd5a6765cd69/FLAG34ba65c8e [2018-10-26 23:24:20,633 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:24:20,634 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_103d55c7-a215-460b-9268-428621c5bd86/sv-benchmarks/c/list-ext3-properties/sll_nondet_insert_false-unreach-call_false-valid-memcleanup.i [2018-10-26 23:24:20,645 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_103d55c7-a215-460b-9268-428621c5bd86/bin-2019/ukojak/data/cd4bfc1ba/58d451e2c520451fbcc9fd5a6765cd69/FLAG34ba65c8e [2018-10-26 23:24:20,656 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_103d55c7-a215-460b-9268-428621c5bd86/bin-2019/ukojak/data/cd4bfc1ba/58d451e2c520451fbcc9fd5a6765cd69 [2018-10-26 23:24:20,658 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:24:20,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:24:20,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:24:20,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:24:20,663 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:24:20,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:24:20" (1/1) ... [2018-10-26 23:24:20,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f5d9a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:24:20, skipping insertion in model container [2018-10-26 23:24:20,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:24:20" (1/1) ... [2018-10-26 23:24:20,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:24:20,708 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:24:20,960 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:24:20,968 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:24:21,017 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:24:21,053 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:24:21,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:24:21 WrapperNode [2018-10-26 23:24:21,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:24:21,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:24:21,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:24:21,058 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:24:21,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:24:21" (1/1) ... [2018-10-26 23:24:21,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:24:21" (1/1) ... [2018-10-26 23:24:21,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:24:21,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:24:21,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:24:21,170 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:24:21,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:24:21" (1/1) ... [2018-10-26 23:24:21,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:24:21" (1/1) ... [2018-10-26 23:24:21,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:24:21" (1/1) ... [2018-10-26 23:24:21,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:24:21" (1/1) ... [2018-10-26 23:24:21,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:24:21" (1/1) ... [2018-10-26 23:24:21,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:24:21" (1/1) ... [2018-10-26 23:24:21,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:24:21" (1/1) ... [2018-10-26 23:24:21,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:24:21,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:24:21,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:24:21,220 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:24:21,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:24:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_103d55c7-a215-460b-9268-428621c5bd86/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 [2018-10-26 23:24:21,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-26 23:24:21,286 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 23:24:21,287 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-10-26 23:24:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure _get_nondet_int [2018-10-26 23:24:21,287 INFO L138 BoogieDeclarations]: Found implementation of procedure _get_nondet_int [2018-10-26 23:24:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-10-26 23:24:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-10-26 23:24:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-26 23:24:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:24:21,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:24:22,398 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:24:22,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:24:22 BoogieIcfgContainer [2018-10-26 23:24:22,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:24:22,399 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-26 23:24:22,399 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-26 23:24:22,409 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-26 23:24:22,409 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:24:22" (1/1) ... [2018-10-26 23:24:22,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:24:22,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:24:22,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 40 states and 55 transitions. [2018-10-26 23:24:22,448 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2018-10-26 23:24:22,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 23:24:22,454 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:24:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:24:22,540 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 23:24:22,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:24:22,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 40 states and 50 transitions. [2018-10-26 23:24:22,553 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2018-10-26 23:24:22,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-26 23:24:22,554 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:24:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:24:22,977 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-26 23:24:23,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:24:23,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 42 states and 53 transitions. [2018-10-26 23:24:23,551 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2018-10-26 23:24:23,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-26 23:24:23,552 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:24:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:24:23,732 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-26 23:24:24,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:24:24,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 46 states and 60 transitions. [2018-10-26 23:24:24,079 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2018-10-26 23:24:24,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-26 23:24:24,080 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:24:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:24:24,193 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-26 23:24:24,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:24:24,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 50 states and 64 transitions. [2018-10-26 23:24:24,607 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 64 transitions. [2018-10-26 23:24:24,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-26 23:24:24,608 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:24:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:24:25,023 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-26 23:24:27,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:24:27,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 55 states and 72 transitions. [2018-10-26 23:24:27,372 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 72 transitions. [2018-10-26 23:24:27,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-26 23:24:27,374 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:24:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:24:28,310 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-26 23:24:34,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:24:34,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 84 states and 122 transitions. [2018-10-26 23:24:34,133 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 122 transitions. [2018-10-26 23:24:34,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-26 23:24:34,134 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:24:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:24:35,299 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-26 23:24:43,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:24:43,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 104 states and 158 transitions. [2018-10-26 23:24:43,185 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 158 transitions. [2018-10-26 23:24:43,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-26 23:24:43,186 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:24:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:24:43,250 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-26 23:24:44,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:24:44,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 108 states and 166 transitions. [2018-10-26 23:24:44,530 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 166 transitions. [2018-10-26 23:24:44,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-26 23:24:44,534 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:24:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:24:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:24:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:24:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:24:44,695 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2018-10-26 23:24:44,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.10 11:24:44 ImpRootNode [2018-10-26 23:24:44,774 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-26 23:24:44,774 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:24:44,774 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:24:44,774 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:24:44,775 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:24:22" (3/4) ... [2018-10-26 23:24:44,777 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 23:24:44,893 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_103d55c7-a215-460b-9268-428621c5bd86/bin-2019/ukojak/witness.graphml [2018-10-26 23:24:44,893 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:24:44,894 INFO L168 Benchmark]: Toolchain (without parser) took 24235.46 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 493.4 MB). Free memory was 949.1 MB in the beginning and 1.3 GB in the end (delta: -385.4 MB). Peak memory consumption was 108.0 MB. Max. memory is 11.5 GB. [2018-10-26 23:24:44,895 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:24:44,896 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.86 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 924.9 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-10-26 23:24:44,896 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 924.9 MB in the beginning and 1.1 GB in the end (delta: -198.5 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2018-10-26 23:24:44,897 INFO L168 Benchmark]: Boogie Preprocessor took 50.15 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:24:44,897 INFO L168 Benchmark]: RCFGBuilder took 1178.73 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: 62.7 MB). Peak memory consumption was 62.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:24:44,903 INFO L168 Benchmark]: CodeCheck took 22374.66 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 367.0 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -277.1 MB). Peak memory consumption was 89.9 MB. Max. memory is 11.5 GB. [2018-10-26 23:24:44,904 INFO L168 Benchmark]: Witness Printer took 118.94 ms. Allocated memory is still 1.5 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:24:44,907 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 3 procedures, 83 locations, 1 error locations. UNSAFE Result, 22.2s OverallTime, 9 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4976 SDtfs, 1824 SDslu, 1504 SDs, 0 SdLazy, 11306 SolverSat, 3546 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2140 GetRequests, 1835 SyntacticMatches, 27 SemanticMatches, 278 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27049 ImplicationChecksByTransitivity, 20.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 303 NumberOfCodeBlocks, 303 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 255 ConstructedInterpolants, 0 QuantifiedInterpolants, 122694 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 36/109 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: 630]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L616] CALL, EXPR _get_nondet_int(2, 5) VAL [\old(from)=2, \old(until)=5] [L609] int len = from; VAL [\old(from)=2, \old(until)=5, from=2, len=2, until=5] [L610] len < until && __VERIFIER_nondet_int() [L610] len < until && __VERIFIER_nondet_int() VAL [\old(from)=2, \old(until)=5, __VERIFIER_nondet_int()=0, from=2, len=2, len < until && __VERIFIER_nondet_int()=0, until=5] [L610] COND FALSE !(len < until && __VERIFIER_nondet_int()) [L613] RET return len; [L616] EXPR _get_nondet_int(2, 5) [L616] const int len = _get_nondet_int(2, 5); [L617] FCALL SLL s = sll_create(len); [L617] CALL, EXPR sll_create(len) [L564] SLL head = ((void *)0); [L565] EXPR len-- [L565] COND TRUE len-- > 0 [L566] EXPR, FCALL malloc(sizeof(struct node)) [L566] SLL new_head = (SLL) malloc(sizeof(struct node)); [L567] COND FALSE !(((void *)0) == new_head) [L570] FCALL new_head->next = head [L571] head = new_head [L565] EXPR len-- [L565] COND TRUE len-- > 0 [L566] EXPR, FCALL malloc(sizeof(struct node)) [L566] SLL new_head = (SLL) malloc(sizeof(struct node)); [L567] COND FALSE !(((void *)0) == new_head) [L570] FCALL new_head->next = head [L571] head = new_head [L565] EXPR len-- [L565] COND FALSE !(len-- > 0) [L573] RET return head; [L617] EXPR sll_create(len) [L617] FCALL SLL s = sll_create(len); [L618] CALL, EXPR _get_nondet_int(0, len - 1) VAL [\old(from)=0, \old(until)=1] [L609] int len = from; VAL [\old(from)=0, \old(until)=1, from=0, len=0, until=1] [L610] len < until && __VERIFIER_nondet_int() [L610] len < until && __VERIFIER_nondet_int() VAL [\old(from)=0, \old(until)=1, __VERIFIER_nondet_int()=-1, from=0, len=0, len < until && __VERIFIER_nondet_int()=1, until=1] [L610] COND TRUE len < until && __VERIFIER_nondet_int() [L611] len++ VAL [\old(from)=0, \old(until)=1, from=0, len=1, until=1] [L610] len < until && __VERIFIER_nondet_int() VAL [\old(from)=0, \old(until)=1, __VERIFIER_nondet_int()=0, from=0, len=1, len < until && __VERIFIER_nondet_int()=0, until=1] [L610] COND FALSE !(len < until && __VERIFIER_nondet_int()) [L613] RET return len; [L618] EXPR _get_nondet_int(0, len - 1) [L618] const int k = _get_nondet_int(0, len - 1); [L619] int i = 0; [L620] i < k && __VERIFIER_nondet_int() [L620] i < k && __VERIFIER_nondet_int() [L620] COND FALSE !(i < k && __VERIFIER_nondet_int()) [L625] EXPR, FCALL \read(s) [L625] CALL, EXPR sll_length(s) [L576] int len = 0; [L577] COND TRUE \read(head) [L578] len++ [L579] EXPR, FCALL head->next [L579] head = head->next [L577] COND TRUE \read(head) [L578] len++ [L579] EXPR, FCALL head->next [L579] head = head->next [L577] COND FALSE !(\read(head)) [L581] RET return len; [L625] EXPR sll_length(s) [L625] COND TRUE k + len != sll_length(s) [L630] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 397.86 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 924.9 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 111.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 924.9 MB in the beginning and 1.1 GB in the end (delta: -198.5 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.15 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1178.73 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: 62.7 MB). Peak memory consumption was 62.7 MB. Max. memory is 11.5 GB. * CodeCheck took 22374.66 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 367.0 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -277.1 MB). Peak memory consumption was 89.9 MB. Max. memory is 11.5 GB. * Witness Printer took 118.94 ms. Allocated memory is still 1.5 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...