./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-queue_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cc6e8c29-c93c-46a9-a2a6-2fa760ca0bb7/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cc6e8c29-c93c-46a9-a2a6-2fa760ca0bb7/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cc6e8c29-c93c-46a9-a2a6-2fa760ca0bb7/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cc6e8c29-c93c-46a9-a2a6-2fa760ca0bb7/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-queue_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cc6e8c29-c93c-46a9-a2a6-2fa760ca0bb7/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cc6e8c29-c93c-46a9-a2a6-2fa760ca0bb7/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 e5083763cd1026dac92f37bc5a05779baf01a71b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-02 11:54:14,426 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 11:54:14,426 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 11:54:14,432 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 11:54:14,433 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 11:54:14,433 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 11:54:14,434 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 11:54:14,435 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 11:54:14,436 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 11:54:14,436 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 11:54:14,437 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 11:54:14,437 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 11:54:14,438 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 11:54:14,438 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 11:54:14,439 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 11:54:14,439 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 11:54:14,440 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 11:54:14,441 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 11:54:14,442 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 11:54:14,443 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 11:54:14,443 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 11:54:14,444 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 11:54:14,445 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 11:54:14,445 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 11:54:14,445 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 11:54:14,446 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 11:54:14,447 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 11:54:14,447 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 11:54:14,447 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 11:54:14,448 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 11:54:14,448 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 11:54:14,449 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 11:54:14,449 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 11:54:14,449 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 11:54:14,450 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 11:54:14,450 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 11:54:14,450 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cc6e8c29-c93c-46a9-a2a6-2fa760ca0bb7/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-02 11:54:14,457 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 11:54:14,458 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 11:54:14,458 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 11:54:14,458 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-02 11:54:14,459 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 11:54:14,459 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 11:54:14,459 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 11:54:14,459 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 11:54:14,459 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 11:54:14,459 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 11:54:14,459 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 11:54:14,460 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 11:54:14,460 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 11:54:14,460 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 11:54:14,460 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 11:54:14,460 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 11:54:14,460 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 11:54:14,460 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 11:54:14,460 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 11:54:14,461 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 11:54:14,461 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 11:54:14,461 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 11:54:14,461 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 11:54:14,461 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 11:54:14,461 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 11:54:14,461 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 11:54:14,461 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 11:54:14,462 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 11:54:14,462 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 11:54:14,462 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_cc6e8c29-c93c-46a9-a2a6-2fa760ca0bb7/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 -> e5083763cd1026dac92f37bc5a05779baf01a71b [2018-12-02 11:54:14,479 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 11:54:14,485 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 11:54:14,487 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 11:54:14,488 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 11:54:14,488 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 11:54:14,489 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cc6e8c29-c93c-46a9-a2a6-2fa760ca0bb7/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/sll-queue_false-unreach-call_false-valid-memcleanup.i [2018-12-02 11:54:14,523 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc6e8c29-c93c-46a9-a2a6-2fa760ca0bb7/bin-2019/ukojak/data/b824a9b7a/edae10de15494d4c85a186224aa466f1/FLAG69a2dd330 [2018-12-02 11:54:14,978 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 11:54:14,978 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cc6e8c29-c93c-46a9-a2a6-2fa760ca0bb7/sv-benchmarks/c/forester-heap/sll-queue_false-unreach-call_false-valid-memcleanup.i [2018-12-02 11:54:14,984 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc6e8c29-c93c-46a9-a2a6-2fa760ca0bb7/bin-2019/ukojak/data/b824a9b7a/edae10de15494d4c85a186224aa466f1/FLAG69a2dd330 [2018-12-02 11:54:14,993 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cc6e8c29-c93c-46a9-a2a6-2fa760ca0bb7/bin-2019/ukojak/data/b824a9b7a/edae10de15494d4c85a186224aa466f1 [2018-12-02 11:54:14,995 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 11:54:14,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 11:54:14,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 11:54:14,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 11:54:14,998 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 11:54:14,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:54:14" (1/1) ... [2018-12-02 11:54:15,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@190a4d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:14, skipping insertion in model container [2018-12-02 11:54:15,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:54:14" (1/1) ... [2018-12-02 11:54:15,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 11:54:15,029 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 11:54:15,197 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 11:54:15,236 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 11:54:15,263 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 11:54:15,289 INFO L195 MainTranslator]: Completed translation [2018-12-02 11:54:15,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:15 WrapperNode [2018-12-02 11:54:15,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 11:54:15,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 11:54:15,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 11:54:15,290 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 11:54:15,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:15" (1/1) ... [2018-12-02 11:54:15,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:15" (1/1) ... [2018-12-02 11:54:15,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 11:54:15,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 11:54:15,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 11:54:15,328 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 11:54:15,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:15" (1/1) ... [2018-12-02 11:54:15,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:15" (1/1) ... [2018-12-02 11:54:15,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:15" (1/1) ... [2018-12-02 11:54:15,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:15" (1/1) ... [2018-12-02 11:54:15,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:15" (1/1) ... [2018-12-02 11:54:15,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:15" (1/1) ... [2018-12-02 11:54:15,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:15" (1/1) ... [2018-12-02 11:54:15,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 11:54:15,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 11:54:15,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 11:54:15,352 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 11:54:15,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc6e8c29-c93c-46a9-a2a6-2fa760ca0bb7/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 [2018-12-02 11:54:15,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 11:54:15,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 11:54:15,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 11:54:15,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-02 11:54:15,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-02 11:54:15,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 11:54:15,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 11:54:15,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 11:54:15,747 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 11:54:15,748 INFO L280 CfgBuilder]: Removed 35 assue(true) statements. [2018-12-02 11:54:15,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:54:15 BoogieIcfgContainer [2018-12-02 11:54:15,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 11:54:15,748 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 11:54:15,748 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 11:54:15,754 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 11:54:15,755 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:54:15" (1/1) ... [2018-12-02 11:54:15,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 11:54:15,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:15,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 76 states and 125 transitions. [2018-12-02 11:54:15,783 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 125 transitions. [2018-12-02 11:54:15,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-02 11:54:15,785 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:15,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:15,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:15,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 76 states and 120 transitions. [2018-12-02 11:54:15,869 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 120 transitions. [2018-12-02 11:54:15,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 11:54:15,869 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:15,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:15,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:15,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 79 states and 122 transitions. [2018-12-02 11:54:15,939 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 122 transitions. [2018-12-02 11:54:15,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 11:54:15,939 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:15,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:15,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:15,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 80 states and 123 transitions. [2018-12-02 11:54:15,957 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 123 transitions. [2018-12-02 11:54:15,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 11:54:15,957 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:15,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:16,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:16,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 82 states and 124 transitions. [2018-12-02 11:54:16,058 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 124 transitions. [2018-12-02 11:54:16,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 11:54:16,059 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:16,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:16,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:16,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:16,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 87 states and 129 transitions. [2018-12-02 11:54:16,132 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 129 transitions. [2018-12-02 11:54:16,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 11:54:16,132 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:16,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:16,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:16,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 88 states and 127 transitions. [2018-12-02 11:54:16,146 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 127 transitions. [2018-12-02 11:54:16,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 11:54:16,147 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:16,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:16,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:16,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 89 states and 125 transitions. [2018-12-02 11:54:16,161 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 125 transitions. [2018-12-02 11:54:16,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 11:54:16,161 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:16,201 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:16,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:16,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 80 states and 115 transitions. [2018-12-02 11:54:16,348 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2018-12-02 11:54:16,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 11:54:16,349 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:16,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:16,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:16,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 78 states and 113 transitions. [2018-12-02 11:54:16,392 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 113 transitions. [2018-12-02 11:54:16,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 11:54:16,392 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:16,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:16,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:16,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 83 states and 116 transitions. [2018-12-02 11:54:16,463 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 116 transitions. [2018-12-02 11:54:16,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 11:54:16,463 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:16,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:16,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:16,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 92 states and 127 transitions. [2018-12-02 11:54:16,791 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 127 transitions. [2018-12-02 11:54:16,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 11:54:16,791 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:16,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:17,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:17,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 107 states and 146 transitions. [2018-12-02 11:54:17,471 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 146 transitions. [2018-12-02 11:54:17,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 11:54:17,473 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:17,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:17,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:17,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 109 states and 149 transitions. [2018-12-02 11:54:17,802 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 149 transitions. [2018-12-02 11:54:17,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 11:54:17,803 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:17,892 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 11:54:18,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:18,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 119 states and 167 transitions. [2018-12-02 11:54:18,667 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 167 transitions. [2018-12-02 11:54:18,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 11:54:18,668 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:18,701 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-02 11:54:18,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:18,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 121 states and 170 transitions. [2018-12-02 11:54:18,819 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 170 transitions. [2018-12-02 11:54:18,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 11:54:18,819 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:18,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:19,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:19,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 124 states and 175 transitions. [2018-12-02 11:54:19,388 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 175 transitions. [2018-12-02 11:54:19,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 11:54:19,388 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:19,399 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-02 11:54:19,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:19,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 127 states and 180 transitions. [2018-12-02 11:54:19,513 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 180 transitions. [2018-12-02 11:54:19,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 11:54:19,513 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:19,546 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:19,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:19,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 128 states and 180 transitions. [2018-12-02 11:54:19,653 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 180 transitions. [2018-12-02 11:54:19,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 11:54:19,654 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:19,908 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:21,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:21,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 148 states and 215 transitions. [2018-12-02 11:54:21,437 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 215 transitions. [2018-12-02 11:54:21,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 11:54:21,437 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:21,539 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:21,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:21,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 149 states and 219 transitions. [2018-12-02 11:54:21,729 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 219 transitions. [2018-12-02 11:54:21,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 11:54:21,729 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:21,790 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:22,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:22,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 158 states and 229 transitions. [2018-12-02 11:54:22,357 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 229 transitions. [2018-12-02 11:54:22,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 11:54:22,357 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:22,377 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:22,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:22,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 159 states and 229 transitions. [2018-12-02 11:54:22,575 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 229 transitions. [2018-12-02 11:54:22,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 11:54:22,575 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:22,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:26,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:26,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 179 states and 263 transitions. [2018-12-02 11:54:26,135 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 263 transitions. [2018-12-02 11:54:26,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 11:54:26,136 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:26,767 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:29,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:29,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 199 states and 294 transitions. [2018-12-02 11:54:29,681 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 294 transitions. [2018-12-02 11:54:29,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-02 11:54:29,682 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:29,777 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:30,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:30,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 208 states and 307 transitions. [2018-12-02 11:54:30,496 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 307 transitions. [2018-12-02 11:54:30,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-02 11:54:30,497 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:30,559 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:30,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:30,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 209 states and 307 transitions. [2018-12-02 11:54:30,772 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 307 transitions. [2018-12-02 11:54:30,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-02 11:54:30,773 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:30,780 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-02 11:54:31,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:31,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 216 states and 317 transitions. [2018-12-02 11:54:31,904 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 317 transitions. [2018-12-02 11:54:31,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-02 11:54:31,904 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:32,426 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:36,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:36,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 236 states and 344 transitions. [2018-12-02 11:54:36,538 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 344 transitions. [2018-12-02 11:54:36,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-02 11:54:36,539 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:37,171 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:45,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:45,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 255 states and 379 transitions. [2018-12-02 11:54:45,164 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 379 transitions. [2018-12-02 11:54:45,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-02 11:54:45,165 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:45,192 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:47,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:47,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 261 states and 392 transitions. [2018-12-02 11:54:47,208 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 392 transitions. [2018-12-02 11:54:47,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-02 11:54:47,209 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:47,363 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:48,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:48,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 270 states and 404 transitions. [2018-12-02 11:54:48,496 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 404 transitions. [2018-12-02 11:54:48,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-02 11:54:48,496 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:53,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:54:53,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 294 states and 442 transitions. [2018-12-02 11:54:53,654 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 442 transitions. [2018-12-02 11:54:53,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-02 11:54:53,654 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:54:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:54,818 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:55:01,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:55:01,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 312 states and 472 transitions. [2018-12-02 11:55:01,662 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 472 transitions. [2018-12-02 11:55:01,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-02 11:55:01,662 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:55:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:55:02,132 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:55:03,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:55:03,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 318 states and 485 transitions. [2018-12-02 11:55:03,742 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 485 transitions. [2018-12-02 11:55:03,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-02 11:55:03,742 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:55:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:55:06,696 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:55:14,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:55:14,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 345 states and 531 transitions. [2018-12-02 11:55:14,747 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 531 transitions. [2018-12-02 11:55:14,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-02 11:55:14,748 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:55:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:55:15,056 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 11:55:16,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:55:16,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 347 states and 535 transitions. [2018-12-02 11:55:16,791 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 535 transitions. [2018-12-02 11:55:16,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-02 11:55:16,791 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:55:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:55:17,907 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:55:20,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 11:55:20,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 353 states and 549 transitions. [2018-12-02 11:55:20,073 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 549 transitions. [2018-12-02 11:55:20,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-02 11:55:20,073 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 11:55:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 11:55:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 11:55:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 11:55:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 11:55:20,520 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 38 iterations. [2018-12-02 11:55:20,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 11:55:20 ImpRootNode [2018-12-02 11:55:20,562 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 11:55:20,562 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 11:55:20,562 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 11:55:20,562 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 11:55:20,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:54:15" (3/4) ... [2018-12-02 11:55:20,565 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 11:55:20,619 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cc6e8c29-c93c-46a9-a2a6-2fa760ca0bb7/bin-2019/ukojak/witness.graphml [2018-12-02 11:55:20,619 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 11:55:20,619 INFO L168 Benchmark]: Toolchain (without parser) took 65624.25 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 486.0 MB). Free memory was 957.1 MB in the beginning and 1.4 GB in the end (delta: -469.3 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. [2018-12-02 11:55:20,620 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 11:55:20,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -157.9 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-02 11:55:20,621 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 11:55:20,621 INFO L168 Benchmark]: Boogie Preprocessor took 24.11 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-02 11:55:20,621 INFO L168 Benchmark]: RCFGBuilder took 396.28 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: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. [2018-12-02 11:55:20,622 INFO L168 Benchmark]: CodeCheck took 64813.66 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 354.9 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -366.1 MB). Peak memory consumption was 675.7 MB. Max. memory is 11.5 GB. [2018-12-02 11:55:20,622 INFO L168 Benchmark]: Witness Printer took 56.82 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 7.0 kB). Peak memory consumption was 7.0 kB. Max. memory is 11.5 GB. [2018-12-02 11:55:20,624 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 1 procedures, 85 locations, 14 error locations. UNSAFE Result, 64.7s OverallTime, 38 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 488885976 SDtfs, -1717733068 SDslu, 2017074156 SDs, 0 SdLazy, -1135440670 SolverSat, -735300946 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7332 GetRequests, 6380 SyntacticMatches, 306 SemanticMatches, 646 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262350 ImplicationChecksByTransitivity, 60.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 870 NumberOfCodeBlocks, 870 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 793 ConstructedInterpolants, 0 QuantifiedInterpolants, 388337 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 37 InterpolantComputations, 10 PerfectInterpolantSequences, 40/379 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: 1035]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L985] SLL* head = malloc(sizeof(SLL)); [L986] head->next = ((void*)0) [L987] head->data = 0 [L988] SLL* item = head; [L989] int status = 0; [L991] COND TRUE __VERIFIER_nondet_int() [L993] item->next = malloc(sizeof(SLL)) [L994] EXPR item->next [L994] item = item->next [L995] item->next = ((void*)0) [L997] COND TRUE !status [L999] item->data = 1 [L1000] status = 1 [L1013] COND FALSE !(!(head != ((void*)0))) [L1014] COND FALSE !(!(item != ((void*)0))) [L991] COND TRUE __VERIFIER_nondet_int() [L993] item->next = malloc(sizeof(SLL)) [L994] EXPR item->next [L994] item = item->next [L995] item->next = ((void*)0) [L997] COND FALSE !(!status) [L1002] COND TRUE status == 1 [L1004] item->data = 2 [L1005] status = 2 [L1013] COND FALSE !(!(head != ((void*)0))) [L1014] COND FALSE !(!(item != ((void*)0))) [L991] COND TRUE __VERIFIER_nondet_int() [L993] item->next = malloc(sizeof(SLL)) [L994] EXPR item->next [L994] item = item->next [L995] item->next = ((void*)0) [L997] COND FALSE !(!status) [L1002] COND FALSE !(status == 1) [L1007] COND TRUE status >= 2 [L1009] item->data = 3 [L1010] status = 3 [L1013] COND FALSE !(!(head != ((void*)0))) [L1014] COND FALSE !(!(item != ((void*)0))) [L991] COND FALSE !(__VERIFIER_nondet_int()) [L1017] COND FALSE !(!(head != ((void*)0))) [L1018] COND FALSE !(status == 1) [L1023] COND FALSE !(status == 2) [L1029] COND TRUE status == 3 [L1031] COND FALSE !(!(head != ((void*)0))) [L1032] EXPR head->next [L1032] COND FALSE !(!(head->next != ((void*)0))) [L1033] EXPR head->next [L1033] EXPR head->next->next [L1033] COND FALSE !(!(head->next->next != ((void*)0))) [L1034] EXPR head->next [L1034] EXPR head->next->next [L1034] EXPR head->next->next->next [L1034] COND FALSE !(!(head->next->next->next != ((void*)0))) [L1035] EXPR head->next [L1035] EXPR head->next->next [L1035] EXPR head->next->next->next [L1035] EXPR head->next->next->next->data [L1035] COND TRUE !(head->next->next->next->data != 3) [L1035] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 293.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -157.9 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.11 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 396.28 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: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. * CodeCheck took 64813.66 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 354.9 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -366.1 MB). Peak memory consumption was 675.7 MB. Max. memory is 11.5 GB. * Witness Printer took 56.82 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 7.0 kB). Peak memory consumption was 7.0 kB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...