./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/forester-heap/sll-circular_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f8491022-59a3-4aa4-9c23-c653f608e541/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f8491022-59a3-4aa4-9c23-c653f608e541/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f8491022-59a3-4aa4-9c23-c653f608e541/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f8491022-59a3-4aa4-9c23-c653f608e541/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-circular_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f8491022-59a3-4aa4-9c23-c653f608e541/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f8491022-59a3-4aa4-9c23-c653f608e541/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b651d63eb42259dfd3a213a6671e4c58ee528ad0 ............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.23-5842f4b [2018-11-18 15:30:44,013 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:30:44,014 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:30:44,020 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:30:44,021 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:30:44,021 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:30:44,022 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:30:44,023 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:30:44,024 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:30:44,025 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:30:44,025 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:30:44,026 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:30:44,026 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:30:44,027 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:30:44,027 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:30:44,028 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:30:44,028 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:30:44,029 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:30:44,031 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:30:44,032 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:30:44,032 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:30:44,033 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:30:44,035 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:30:44,035 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:30:44,035 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:30:44,036 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:30:44,036 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:30:44,036 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:30:44,037 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:30:44,038 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:30:44,038 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:30:44,038 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:30:44,038 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:30:44,039 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:30:44,039 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:30:44,040 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:30:44,040 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f8491022-59a3-4aa4-9c23-c653f608e541/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 15:30:44,047 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:30:44,047 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:30:44,048 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:30:44,048 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 15:30:44,048 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:30:44,048 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:30:44,048 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 15:30:44,048 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:30:44,049 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:30:44,049 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:30:44,049 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:30:44,049 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:30:44,049 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:30:44,049 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:30:44,049 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:30:44,049 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:30:44,049 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:30:44,050 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:30:44,050 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:30:44,050 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:30:44,050 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:30:44,050 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:30:44,050 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:30:44,050 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:30:44,050 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:30:44,050 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:30:44,051 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:30:44,051 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 15:30:44,051 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:30:44,051 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:30:44,051 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_f8491022-59a3-4aa4-9c23-c653f608e541/bin-2019/uautomizer 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 -> Automizer 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 -> b651d63eb42259dfd3a213a6671e4c58ee528ad0 [2018-11-18 15:30:44,074 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:30:44,083 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:30:44,085 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:30:44,086 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:30:44,087 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:30:44,087 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f8491022-59a3-4aa4-9c23-c653f608e541/bin-2019/uautomizer/../../sv-benchmarks/c/forester-heap/sll-circular_false-unreach-call_false-valid-memcleanup.i [2018-11-18 15:30:44,130 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f8491022-59a3-4aa4-9c23-c653f608e541/bin-2019/uautomizer/data/a4a6bbac2/5109fa3ca99c43708958cec344f6f173/FLAG9d355b0b4 [2018-11-18 15:30:44,478 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:30:44,479 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f8491022-59a3-4aa4-9c23-c653f608e541/sv-benchmarks/c/forester-heap/sll-circular_false-unreach-call_false-valid-memcleanup.i [2018-11-18 15:30:44,486 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f8491022-59a3-4aa4-9c23-c653f608e541/bin-2019/uautomizer/data/a4a6bbac2/5109fa3ca99c43708958cec344f6f173/FLAG9d355b0b4 [2018-11-18 15:30:44,496 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f8491022-59a3-4aa4-9c23-c653f608e541/bin-2019/uautomizer/data/a4a6bbac2/5109fa3ca99c43708958cec344f6f173 [2018-11-18 15:30:44,498 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:30:44,499 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 15:30:44,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:30:44,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:30:44,503 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:30:44,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:30:44" (1/1) ... [2018-11-18 15:30:44,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71285a48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:44, skipping insertion in model container [2018-11-18 15:30:44,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:30:44" (1/1) ... [2018-11-18 15:30:44,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:30:44,545 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:30:44,735 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:30:44,742 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:30:44,767 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:30:44,838 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:30:44,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:44 WrapperNode [2018-11-18 15:30:44,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:30:44,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:30:44,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:30:44,839 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:30:44,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:44" (1/1) ... [2018-11-18 15:30:44,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:44" (1/1) ... [2018-11-18 15:30:44,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:44" (1/1) ... [2018-11-18 15:30:44,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:44" (1/1) ... [2018-11-18 15:30:44,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:44" (1/1) ... [2018-11-18 15:30:44,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:44" (1/1) ... [2018-11-18 15:30:44,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:44" (1/1) ... [2018-11-18 15:30:44,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:30:44,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:30:44,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:30:44,877 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:30:44,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f8491022-59a3-4aa4-9c23-c653f608e541/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:2000 [2018-11-18 15:30:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:30:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:30:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:30:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-18 15:30:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-18 15:30:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-18 15:30:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-18 15:30:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-18 15:30:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-18 15:30:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-18 15:30:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-18 15:30:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-18 15:30:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-18 15:30:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-18 15:30:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-18 15:30:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-18 15:30:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-18 15:30:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-18 15:30:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-18 15:30:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-18 15:30:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-18 15:30:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-18 15:30:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-18 15:30:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-18 15:30:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-18 15:30:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-18 15:30:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-18 15:30:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-18 15:30:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-18 15:30:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-18 15:30:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-18 15:30:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-18 15:30:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-18 15:30:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-18 15:30:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-18 15:30:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-18 15:30:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-18 15:30:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-18 15:30:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-18 15:30:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-18 15:30:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-18 15:30:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-18 15:30:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-18 15:30:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-18 15:30:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-18 15:30:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-18 15:30:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-18 15:30:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-18 15:30:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-18 15:30:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-18 15:30:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-18 15:30:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-18 15:30:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-18 15:30:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-18 15:30:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-18 15:30:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-18 15:30:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-18 15:30:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-18 15:30:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-18 15:30:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-18 15:30:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-18 15:30:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-18 15:30:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-18 15:30:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-18 15:30:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-18 15:30:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-18 15:30:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 15:30:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-18 15:30:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-18 15:30:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-18 15:30:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-18 15:30:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-18 15:30:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-18 15:30:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-18 15:30:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-18 15:30:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-18 15:30:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-18 15:30:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-18 15:30:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-18 15:30:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-18 15:30:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-18 15:30:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-18 15:30:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-18 15:30:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-18 15:30:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-18 15:30:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-18 15:30:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-18 15:30:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-18 15:30:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-18 15:30:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-18 15:30:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-18 15:30:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-18 15:30:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-18 15:30:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-18 15:30:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-18 15:30:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-18 15:30:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-18 15:30:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-18 15:30:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-18 15:30:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-18 15:30:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-18 15:30:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-18 15:30:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-18 15:30:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-18 15:30:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-18 15:30:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-18 15:30:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 15:30:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 15:30:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:30:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:30:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 15:30:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 15:30:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 15:30:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 15:30:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:30:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:30:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:30:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 15:30:45,173 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:30:45,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:30:45 BoogieIcfgContainer [2018-11-18 15:30:45,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:30:45,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:30:45,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:30:45,176 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:30:45,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:30:44" (1/3) ... [2018-11-18 15:30:45,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19107ae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:30:45, skipping insertion in model container [2018-11-18 15:30:45,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:44" (2/3) ... [2018-11-18 15:30:45,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19107ae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:30:45, skipping insertion in model container [2018-11-18 15:30:45,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:30:45" (3/3) ... [2018-11-18 15:30:45,178 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-circular_false-unreach-call_false-valid-memcleanup.i [2018-11-18 15:30:45,184 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:30:45,188 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-18 15:30:45,197 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-18 15:30:45,217 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:30:45,218 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:30:45,218 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:30:45,218 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:30:45,218 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:30:45,218 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:30:45,218 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:30:45,218 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:30:45,218 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:30:45,228 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-18 15:30:45,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 15:30:45,231 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:30:45,232 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:30:45,233 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:30:45,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:30:45,236 INFO L82 PathProgramCache]: Analyzing trace with hash -679447583, now seen corresponding path program 1 times [2018-11-18 15:30:45,237 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:30:45,238 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:30:45,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:30:45,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:30:45,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:30:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:30:45,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:30:45,332 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:30:45,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:30:45,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:30:45,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:30:45,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:30:45,344 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-18 15:30:45,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:30:45,356 INFO L93 Difference]: Finished difference Result 80 states and 116 transitions. [2018-11-18 15:30:45,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:30:45,358 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-18 15:30:45,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:30:45,365 INFO L225 Difference]: With dead ends: 80 [2018-11-18 15:30:45,365 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 15:30:45,368 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:30:45,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 15:30:45,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-18 15:30:45,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 15:30:45,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2018-11-18 15:30:45,391 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 11 [2018-11-18 15:30:45,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:30:45,391 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2018-11-18 15:30:45,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:30:45,391 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2018-11-18 15:30:45,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 15:30:45,392 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:30:45,392 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:30:45,392 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:30:45,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:30:45,392 INFO L82 PathProgramCache]: Analyzing trace with hash -267207819, now seen corresponding path program 1 times [2018-11-18 15:30:45,392 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:30:45,392 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:30:45,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:30:45,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:30:45,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:30:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:30:45,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:30:45,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:30:45,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 15:30:45,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 15:30:45,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 15:30:45,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 15:30:45,448 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 4 states. [2018-11-18 15:30:45,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:30:45,501 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2018-11-18 15:30:45,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 15:30:45,502 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-11-18 15:30:45,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:30:45,503 INFO L225 Difference]: With dead ends: 44 [2018-11-18 15:30:45,503 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 15:30:45,503 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:30:45,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 15:30:45,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 30. [2018-11-18 15:30:45,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-18 15:30:45,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2018-11-18 15:30:45,508 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 13 [2018-11-18 15:30:45,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:30:45,508 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2018-11-18 15:30:45,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 15:30:45,508 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2018-11-18 15:30:45,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 15:30:45,509 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:30:45,509 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:30:45,509 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:30:45,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:30:45,509 INFO L82 PathProgramCache]: Analyzing trace with hash 18466047, now seen corresponding path program 1 times [2018-11-18 15:30:45,509 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:30:45,509 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:30:45,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:30:45,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:30:45,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:30:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:30:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:30:45,565 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 15:30:45,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:30:45 BoogieIcfgContainer [2018-11-18 15:30:45,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:30:45,586 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:30:45,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:30:45,586 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:30:45,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:30:45" (3/4) ... [2018-11-18 15:30:45,588 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 15:30:45,618 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f8491022-59a3-4aa4-9c23-c653f608e541/bin-2019/uautomizer/witness.graphml [2018-11-18 15:30:45,618 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:30:45,619 INFO L168 Benchmark]: Toolchain (without parser) took 1120.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 957.6 MB in the beginning and 1.0 GB in the end (delta: -65.6 MB). Peak memory consumption was 62.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:30:45,619 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:30:45,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -161.6 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:30:45,620 INFO L168 Benchmark]: Boogie Preprocessor took 38.35 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:30:45,620 INFO L168 Benchmark]: RCFGBuilder took 296.57 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:30:45,621 INFO L168 Benchmark]: TraceAbstraction took 411.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:30:45,621 INFO L168 Benchmark]: Witness Printer took 32.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:30:45,623 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 338.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -161.6 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.35 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 296.57 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 411.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. * Witness Printer took 32.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1021]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, state=1, x={11:0}] [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, state=1, x={11:0}] [L1017] COND FALSE !(0) VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, state=1, x={11:0}] [L1019] EXPR, FCALL x->data VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, state=1, x={11:0}, x->data=1] [L1019] COND TRUE x->data != 0 [L1021] EXPR, FCALL x->next [L1021] EXPR, FCALL x->next->data [L1021] EXPR x->next->data != 0 && x->data > x->next->data [L1021] EXPR, FCALL x->data [L1021] EXPR, FCALL x->next [L1021] EXPR, FCALL x->next->data [L1021] EXPR x->next->data != 0 && x->data > x->next->data VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, state=1, x={11:0}, x->data=1, x->next={11:0}, x->next={11:0}, x->next->data=1, x->next->data=1, x->next->data != 0 && x->data > x->next->data=0] [L1021] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L1021] __VERIFIER_error() VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, state=1, x={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 43 locations, 3 error locations. UNSAFE Result, 0.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 75 SDtfs, 59 SDslu, 17 SDs, 0 SdLazy, 13 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 652 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...