./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-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_937bd579-4311-4e9d-8547-f8a881b8f5cf/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_937bd579-4311-4e9d-8547-f8a881b8f5cf/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_937bd579-4311-4e9d-8547-f8a881b8f5cf/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_937bd579-4311-4e9d-8547-f8a881b8f5cf/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-queue_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_937bd579-4311-4e9d-8547-f8a881b8f5cf/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_937bd579-4311-4e9d-8547-f8a881b8f5cf/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 39996758d4a4793ed5619e696b4574ccdffaa666 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 [2018-12-08 11:51:35,406 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 11:51:35,407 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 11:51:35,416 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 11:51:35,416 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 11:51:35,417 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 11:51:35,418 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 11:51:35,419 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 11:51:35,420 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 11:51:35,420 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 11:51:35,421 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 11:51:35,421 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 11:51:35,422 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 11:51:35,423 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 11:51:35,423 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 11:51:35,424 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 11:51:35,425 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 11:51:35,426 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 11:51:35,427 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 11:51:35,427 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 11:51:35,428 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 11:51:35,428 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 11:51:35,430 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 11:51:35,430 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 11:51:35,430 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 11:51:35,430 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 11:51:35,431 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 11:51:35,431 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 11:51:35,431 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 11:51:35,432 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 11:51:35,432 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 11:51:35,432 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 11:51:35,432 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 11:51:35,433 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 11:51:35,433 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 11:51:35,433 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 11:51:35,433 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_937bd579-4311-4e9d-8547-f8a881b8f5cf/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-08 11:51:35,441 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 11:51:35,441 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 11:51:35,441 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 11:51:35,441 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-08 11:51:35,442 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 11:51:35,442 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 11:51:35,442 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 11:51:35,442 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 11:51:35,442 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 11:51:35,442 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 11:51:35,442 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 11:51:35,442 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 11:51:35,442 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 11:51:35,442 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 11:51:35,442 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 11:51:35,443 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 11:51:35,443 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 11:51:35,443 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 11:51:35,443 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-08 11:51:35,443 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-08 11:51:35,443 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 11:51:35,443 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 11:51:35,443 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-08 11:51:35,443 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 11:51:35,443 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 11:51:35,443 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 11:51:35,443 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-08 11:51:35,444 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 11:51:35,444 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 11:51:35,444 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_937bd579-4311-4e9d-8547-f8a881b8f5cf/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 -> 39996758d4a4793ed5619e696b4574ccdffaa666 [2018-12-08 11:51:35,460 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 11:51:35,467 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 11:51:35,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 11:51:35,470 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 11:51:35,470 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 11:51:35,470 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_937bd579-4311-4e9d-8547-f8a881b8f5cf/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/dll-queue_false-unreach-call_false-valid-memcleanup.i [2018-12-08 11:51:35,504 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_937bd579-4311-4e9d-8547-f8a881b8f5cf/bin-2019/ukojak/data/9df86b7aa/d82f0d5561ee4f55a3b2729c25169ca9/FLAGb2e2dbd37 [2018-12-08 11:51:35,938 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 11:51:35,938 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_937bd579-4311-4e9d-8547-f8a881b8f5cf/sv-benchmarks/c/forester-heap/dll-queue_false-unreach-call_false-valid-memcleanup.i [2018-12-08 11:51:35,945 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_937bd579-4311-4e9d-8547-f8a881b8f5cf/bin-2019/ukojak/data/9df86b7aa/d82f0d5561ee4f55a3b2729c25169ca9/FLAGb2e2dbd37 [2018-12-08 11:51:35,954 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_937bd579-4311-4e9d-8547-f8a881b8f5cf/bin-2019/ukojak/data/9df86b7aa/d82f0d5561ee4f55a3b2729c25169ca9 [2018-12-08 11:51:35,955 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 11:51:35,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 11:51:35,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 11:51:35,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 11:51:35,959 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 11:51:35,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:51:35" (1/1) ... [2018-12-08 11:51:35,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e31f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:51:35, skipping insertion in model container [2018-12-08 11:51:35,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:51:35" (1/1) ... [2018-12-08 11:51:35,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 11:51:35,986 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 11:51:36,135 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:51:36,142 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 11:51:36,205 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:51:36,225 INFO L195 MainTranslator]: Completed translation [2018-12-08 11:51:36,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:51:36 WrapperNode [2018-12-08 11:51:36,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 11:51:36,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 11:51:36,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 11:51:36,226 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 11:51:36,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:51:36" (1/1) ... [2018-12-08 11:51:36,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:51:36" (1/1) ... [2018-12-08 11:51:36,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 11:51:36,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 11:51:36,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 11:51:36,254 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 11:51:36,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:51:36" (1/1) ... [2018-12-08 11:51:36,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:51:36" (1/1) ... [2018-12-08 11:51:36,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:51:36" (1/1) ... [2018-12-08 11:51:36,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:51:36" (1/1) ... [2018-12-08 11:51:36,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:51:36" (1/1) ... [2018-12-08 11:51:36,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:51:36" (1/1) ... [2018-12-08 11:51:36,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:51:36" (1/1) ... [2018-12-08 11:51:36,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 11:51:36,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 11:51:36,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 11:51:36,273 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 11:51:36,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:51:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_937bd579-4311-4e9d-8547-f8a881b8f5cf/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 [2018-12-08 11:51:36,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 11:51:36,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 11:51:36,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 11:51:36,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 11:51:36,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 11:51:36,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 11:51:36,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 11:51:36,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 11:51:36,624 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 11:51:36,625 INFO L280 CfgBuilder]: Removed 35 assue(true) statements. [2018-12-08 11:51:36,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:51:36 BoogieIcfgContainer [2018-12-08 11:51:36,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 11:51:36,626 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-08 11:51:36,626 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-08 11:51:36,632 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-08 11:51:36,632 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:51:36" (1/1) ... [2018-12-08 11:51:36,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:51:36,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:36,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 76 states and 125 transitions. [2018-12-08 11:51:36,661 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 125 transitions. [2018-12-08 11:51:36,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-08 11:51:36,662 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:36,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:36,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:36,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 76 states and 120 transitions. [2018-12-08 11:51:36,742 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 120 transitions. [2018-12-08 11:51:36,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-08 11:51:36,742 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:36,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:36,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:36,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 79 states and 122 transitions. [2018-12-08 11:51:36,796 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 122 transitions. [2018-12-08 11:51:36,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-08 11:51:36,796 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:36,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:36,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:36,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 80 states and 123 transitions. [2018-12-08 11:51:36,816 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 123 transitions. [2018-12-08 11:51:36,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 11:51:36,816 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:36,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:36,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:36,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 84 states and 128 transitions. [2018-12-08 11:51:36,984 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 128 transitions. [2018-12-08 11:51:36,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 11:51:36,984 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:37,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:37,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:37,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 89 states and 134 transitions. [2018-12-08 11:51:37,114 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 134 transitions. [2018-12-08 11:51:37,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 11:51:37,117 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:37,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:37,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 90 states and 132 transitions. [2018-12-08 11:51:37,132 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 132 transitions. [2018-12-08 11:51:37,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 11:51:37,132 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:37,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:37,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:37,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 91 states and 130 transitions. [2018-12-08 11:51:37,148 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 130 transitions. [2018-12-08 11:51:37,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 11:51:37,148 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:37,166 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-08 11:51:37,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:37,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 79 states and 114 transitions. [2018-12-08 11:51:37,219 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 114 transitions. [2018-12-08 11:51:37,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-08 11:51:37,220 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:37,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 11:51:37,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:37,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 77 states and 112 transitions. [2018-12-08 11:51:37,278 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 112 transitions. [2018-12-08 11:51:37,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-08 11:51:37,278 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:37,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:37,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:37,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 82 states and 115 transitions. [2018-12-08 11:51:37,342 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 115 transitions. [2018-12-08 11:51:37,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 11:51:37,343 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:37,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:37,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:37,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 91 states and 127 transitions. [2018-12-08 11:51:37,687 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 127 transitions. [2018-12-08 11:51:37,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 11:51:37,688 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:37,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:37,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:37,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 93 states and 129 transitions. [2018-12-08 11:51:37,806 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 129 transitions. [2018-12-08 11:51:37,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 11:51:37,807 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:37,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:38,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:38,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 108 states and 149 transitions. [2018-12-08 11:51:38,438 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 149 transitions. [2018-12-08 11:51:38,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 11:51:38,439 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:38,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:38,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:38,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 110 states and 151 transitions. [2018-12-08 11:51:38,582 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 151 transitions. [2018-12-08 11:51:38,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-08 11:51:38,582 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:38,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:38,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:38,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 112 states and 154 transitions. [2018-12-08 11:51:38,953 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 154 transitions. [2018-12-08 11:51:38,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-08 11:51:38,953 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:39,061 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 11:51:39,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:39,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 122 states and 172 transitions. [2018-12-08 11:51:39,664 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 172 transitions. [2018-12-08 11:51:39,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 11:51:39,665 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:39,681 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-08 11:51:39,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:39,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 124 states and 175 transitions. [2018-12-08 11:51:39,769 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 175 transitions. [2018-12-08 11:51:39,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 11:51:39,769 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:39,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:40,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:40,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 127 states and 180 transitions. [2018-12-08 11:51:40,331 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 180 transitions. [2018-12-08 11:51:40,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 11:51:40,331 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:40,346 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-08 11:51:40,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:40,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 130 states and 185 transitions. [2018-12-08 11:51:40,448 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 185 transitions. [2018-12-08 11:51:40,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 11:51:40,448 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:40,592 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:42,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:42,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 150 states and 221 transitions. [2018-12-08 11:51:42,001 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 221 transitions. [2018-12-08 11:51:42,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 11:51:42,002 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:42,040 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:42,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:42,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 152 states and 227 transitions. [2018-12-08 11:51:42,275 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 227 transitions. [2018-12-08 11:51:42,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 11:51:42,275 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:42,347 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:43,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:43,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 161 states and 236 transitions. [2018-12-08 11:51:43,047 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 236 transitions. [2018-12-08 11:51:43,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 11:51:43,048 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:43,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:43,076 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:43,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:43,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 163 states and 239 transitions. [2018-12-08 11:51:43,261 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 239 transitions. [2018-12-08 11:51:43,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 11:51:43,262 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:43,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:47,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:47,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 185 states and 280 transitions. [2018-12-08 11:51:47,192 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 280 transitions. [2018-12-08 11:51:47,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-08 11:51:47,192 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:47,494 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:49,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:49,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 205 states and 312 transitions. [2018-12-08 11:51:49,812 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 312 transitions. [2018-12-08 11:51:49,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-08 11:51:49,812 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:49,876 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:50,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:50,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 207 states and 315 transitions. [2018-12-08 11:51:50,170 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 315 transitions. [2018-12-08 11:51:50,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-08 11:51:50,171 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:50,241 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:51,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:51,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 216 states and 327 transitions. [2018-12-08 11:51:51,033 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 327 transitions. [2018-12-08 11:51:51,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-08 11:51:51,033 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:51,109 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:51,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:51,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 218 states and 330 transitions. [2018-12-08 11:51:51,364 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 330 transitions. [2018-12-08 11:51:51,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-08 11:51:51,364 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:51,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:51,375 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-08 11:51:52,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:52,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 225 states and 339 transitions. [2018-12-08 11:51:52,492 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 339 transitions. [2018-12-08 11:51:52,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-08 11:51:52,492 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:52,860 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:54,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:54,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 237 states and 358 transitions. [2018-12-08 11:51:54,167 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 358 transitions. [2018-12-08 11:51:54,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-08 11:51:54,168 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:54,194 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:51:54,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:51:54,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 239 states and 361 transitions. [2018-12-08 11:51:54,480 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 361 transitions. [2018-12-08 11:51:54,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-08 11:51:54,480 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:51:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:51:54,826 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:52:01,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:52:01,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 258 states and 396 transitions. [2018-12-08 11:52:01,754 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 396 transitions. [2018-12-08 11:52:01,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-08 11:52:01,754 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:52:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:52:01,794 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:52:03,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:52:03,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 264 states and 409 transitions. [2018-12-08 11:52:03,443 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 409 transitions. [2018-12-08 11:52:03,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-08 11:52:03,443 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:52:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:52:03,622 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:52:04,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:52:04,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 273 states and 425 transitions. [2018-12-08 11:52:04,865 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 425 transitions. [2018-12-08 11:52:04,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-08 11:52:04,865 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:52:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:52:04,949 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:52:05,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:52:05,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 275 states and 428 transitions. [2018-12-08 11:52:05,280 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 428 transitions. [2018-12-08 11:52:05,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-08 11:52:05,281 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:52:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:52:05,859 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:52:09,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:52:09,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 299 states and 477 transitions. [2018-12-08 11:52:09,521 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 477 transitions. [2018-12-08 11:52:09,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-08 11:52:09,521 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:52:09,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:52:09,617 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:52:09,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:52:09,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 301 states and 481 transitions. [2018-12-08 11:52:09,988 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 481 transitions. [2018-12-08 11:52:09,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-08 11:52:09,999 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:52:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:52:10,441 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:52:19,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:52:19,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 321 states and 520 transitions. [2018-12-08 11:52:19,088 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 520 transitions. [2018-12-08 11:52:19,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-08 11:52:19,089 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:52:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:52:20,061 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:52:23,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:52:23,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 336 states and 556 transitions. [2018-12-08 11:52:23,449 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 556 transitions. [2018-12-08 11:52:23,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-08 11:52:23,449 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:52:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:52:23,669 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:52:25,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:52:25,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 164 states and 233 transitions. [2018-12-08 11:52:25,236 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 233 transitions. [2018-12-08 11:52:25,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-08 11:52:25,236 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:52:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:52:26,125 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:52:34,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:52:34,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 185 states and 266 transitions. [2018-12-08 11:52:34,050 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 266 transitions. [2018-12-08 11:52:34,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-08 11:52:34,051 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:52:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:52:34,151 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:52:34,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:52:34,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 187 states and 270 transitions. [2018-12-08 11:52:34,911 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 270 transitions. [2018-12-08 11:52:34,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-08 11:52:34,912 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:52:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:52:35,046 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 11:52:36,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:52:36,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 189 states and 274 transitions. [2018-12-08 11:52:36,224 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 274 transitions. [2018-12-08 11:52:36,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-08 11:52:36,224 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:52:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:52:37,593 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:52:44,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:52:44,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 213 states and 325 transitions. [2018-12-08 11:52:44,581 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 325 transitions. [2018-12-08 11:52:44,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-08 11:52:44,582 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:52:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:52:44,937 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:52:46,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:52:46,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 217 states and 336 transitions. [2018-12-08 11:52:46,204 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 336 transitions. [2018-12-08 11:52:46,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-08 11:52:46,205 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:52:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:52:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:52:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:52:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:52:47,672 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 46 iterations. [2018-12-08 11:52:47,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.12 11:52:47 ImpRootNode [2018-12-08 11:52:47,703 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-08 11:52:47,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 11:52:47,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 11:52:47,703 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 11:52:47,704 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:51:36" (3/4) ... [2018-12-08 11:52:47,705 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 11:52:47,748 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_937bd579-4311-4e9d-8547-f8a881b8f5cf/bin-2019/ukojak/witness.graphml [2018-12-08 11:52:47,748 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 11:52:47,748 INFO L168 Benchmark]: Toolchain (without parser) took 71792.60 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 517.5 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -179.2 MB). Peak memory consumption was 338.3 MB. Max. memory is 11.5 GB. [2018-12-08 11:52:47,749 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:52:47,749 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 951.7 MB in the beginning and 1.2 GB in the end (delta: -200.5 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-12-08 11:52:47,750 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:52:47,750 INFO L168 Benchmark]: Boogie Preprocessor took 19.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-12-08 11:52:47,750 INFO L168 Benchmark]: RCFGBuilder took 352.22 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: 48.7 MB). Peak memory consumption was 48.7 MB. Max. memory is 11.5 GB. [2018-12-08 11:52:47,750 INFO L168 Benchmark]: CodeCheck took 71077.23 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 350.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -30.6 MB). Peak memory consumption was 319.6 MB. Max. memory is 11.5 GB. [2018-12-08 11:52:47,751 INFO L168 Benchmark]: Witness Printer took 44.86 ms. Allocated memory is still 1.5 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:52:47,753 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, 71.0s OverallTime, 46 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1373817952 SDtfs, -978514124 SDslu, -1458185360 SDs, 0 SdLazy, -1307289930 SolverSat, 289918646 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 50.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9858 GetRequests, 8730 SyntacticMatches, 428 SemanticMatches, 700 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292095 ImplicationChecksByTransitivity, 63.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 1117 NumberOfCodeBlocks, 1117 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 1032 ConstructedInterpolants, 0 QuantifiedInterpolants, 556799 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 45 InterpolantComputations, 14 PerfectInterpolantSequences, 55/567 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: 1038]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L986] SLL* head = malloc(sizeof(SLL)); [L987] head->next = ((void*)0) [L988] head->prev = ((void*)0) [L989] head->data = 0 [L990] SLL* item = head; [L991] int status = 0; [L993] COND TRUE __VERIFIER_nondet_int() [L995] item->next = malloc(sizeof(SLL)) [L996] EXPR item->next [L996] item->next->prev = item [L997] EXPR item->next [L997] item = item->next [L998] item->next = ((void*)0) [L1000] COND TRUE !status [L1002] item->data = 1 [L1003] status = 1 [L1016] COND FALSE !(!(head != ((void*)0))) [L1017] COND FALSE !(!(item != ((void*)0))) [L993] COND TRUE __VERIFIER_nondet_int() [L995] item->next = malloc(sizeof(SLL)) [L996] EXPR item->next [L996] item->next->prev = item [L997] EXPR item->next [L997] item = item->next [L998] item->next = ((void*)0) [L1000] COND FALSE !(!status) [L1005] COND TRUE status == 1 [L1007] item->data = 2 [L1008] status = 2 [L1016] COND FALSE !(!(head != ((void*)0))) [L1017] COND FALSE !(!(item != ((void*)0))) [L993] COND TRUE __VERIFIER_nondet_int() [L995] item->next = malloc(sizeof(SLL)) [L996] EXPR item->next [L996] item->next->prev = item [L997] EXPR item->next [L997] item = item->next [L998] item->next = ((void*)0) [L1000] COND FALSE !(!status) [L1005] COND FALSE !(status == 1) [L1010] COND TRUE status >= 2 [L1012] item->data = 3 [L1013] status = 3 [L1016] COND FALSE !(!(head != ((void*)0))) [L1017] COND FALSE !(!(item != ((void*)0))) [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1020] COND FALSE !(!(head != ((void*)0))) [L1021] COND FALSE !(status == 1) [L1026] COND FALSE !(status == 2) [L1032] COND TRUE status == 3 [L1034] COND FALSE !(!(head != ((void*)0))) [L1035] EXPR head->next [L1035] COND FALSE !(!(head->next != ((void*)0))) [L1036] EXPR head->next [L1036] EXPR head->next->next [L1036] COND FALSE !(!(head->next->next != ((void*)0))) [L1037] EXPR head->next [L1037] EXPR head->next->next [L1037] EXPR head->next->next->next [L1037] COND FALSE !(!(head->next->next->next != ((void*)0))) [L1038] EXPR head->next [L1038] EXPR head->next->next [L1038] EXPR head->next->next->next [L1038] EXPR head->next->next->next->data [L1038] COND TRUE !(head->next->next->next->data != 3) [L1038] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 268.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 951.7 MB in the beginning and 1.2 GB in the end (delta: -200.5 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 352.22 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: 48.7 MB). Peak memory consumption was 48.7 MB. Max. memory is 11.5 GB. * CodeCheck took 71077.23 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 350.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -30.6 MB). Peak memory consumption was 319.6 MB. Max. memory is 11.5 GB. * Witness Printer took 44.86 ms. Allocated memory is still 1.5 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...