./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/forester-heap/sll-token_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6624e8dd-6ed7-467e-9345-c0cc26f50c73/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6624e8dd-6ed7-467e-9345-c0cc26f50c73/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6624e8dd-6ed7-467e-9345-c0cc26f50c73/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6624e8dd-6ed7-467e-9345-c0cc26f50c73/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-token_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6624e8dd-6ed7-467e-9345-c0cc26f50c73/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6624e8dd-6ed7-467e-9345-c0cc26f50c73/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 60dcf5da7f0124de96473d8010137f60c5cb2803 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 07:01:43,908 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:01:43,909 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:01:43,916 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:01:43,917 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:01:43,917 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:01:43,918 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:01:43,919 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:01:43,920 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:01:43,921 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:01:43,921 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:01:43,921 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:01:43,922 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:01:43,923 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:01:43,924 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:01:43,924 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:01:43,925 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:01:43,926 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:01:43,927 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:01:43,928 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:01:43,929 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:01:43,930 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:01:43,931 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:01:43,932 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:01:43,932 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:01:43,932 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:01:43,933 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:01:43,934 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:01:43,934 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:01:43,935 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:01:43,935 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:01:43,935 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:01:43,936 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:01:43,936 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:01:43,936 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:01:43,937 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:01:43,937 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6624e8dd-6ed7-467e-9345-c0cc26f50c73/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 07:01:43,947 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:01:43,947 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:01:43,948 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:01:43,948 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:01:43,949 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:01:43,949 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:01:43,949 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:01:43,949 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:01:43,949 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:01:43,949 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:01:43,949 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:01:43,950 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:01:43,950 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:01:43,950 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:01:43,950 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:01:43,950 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:01:43,950 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:01:43,950 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:01:43,950 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:01:43,951 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:01:43,951 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:01:43,951 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:01:43,951 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:01:43,951 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:01:43,951 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:01:43,951 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:01:43,951 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 07:01:43,951 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:01:43,952 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:01:43,952 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_6624e8dd-6ed7-467e-9345-c0cc26f50c73/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 -> 60dcf5da7f0124de96473d8010137f60c5cb2803 [2018-11-10 07:01:43,978 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:01:43,987 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:01:43,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:01:43,990 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:01:43,991 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:01:43,991 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6624e8dd-6ed7-467e-9345-c0cc26f50c73/bin-2019/uautomizer/../../sv-benchmarks/c/forester-heap/sll-token_false-unreach-call_false-valid-memcleanup.i [2018-11-10 07:01:44,038 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6624e8dd-6ed7-467e-9345-c0cc26f50c73/bin-2019/uautomizer/data/a336c0717/765541d7442b4b6b8531bb4e663503fd/FLAGce3ff246d [2018-11-10 07:01:44,389 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:01:44,389 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6624e8dd-6ed7-467e-9345-c0cc26f50c73/sv-benchmarks/c/forester-heap/sll-token_false-unreach-call_false-valid-memcleanup.i [2018-11-10 07:01:44,396 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6624e8dd-6ed7-467e-9345-c0cc26f50c73/bin-2019/uautomizer/data/a336c0717/765541d7442b4b6b8531bb4e663503fd/FLAGce3ff246d [2018-11-10 07:01:44,404 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6624e8dd-6ed7-467e-9345-c0cc26f50c73/bin-2019/uautomizer/data/a336c0717/765541d7442b4b6b8531bb4e663503fd [2018-11-10 07:01:44,406 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:01:44,407 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 07:01:44,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:01:44,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:01:44,410 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:01:44,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:01:44" (1/1) ... [2018-11-10 07:01:44,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@604393ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:01:44, skipping insertion in model container [2018-11-10 07:01:44,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:01:44" (1/1) ... [2018-11-10 07:01:44,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:01:44,446 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:01:44,629 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:01:44,635 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:01:44,665 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:01:44,689 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:01:44,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:01:44 WrapperNode [2018-11-10 07:01:44,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:01:44,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:01:44,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:01:44,690 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:01:44,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:01:44" (1/1) ... [2018-11-10 07:01:44,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:01:44" (1/1) ... [2018-11-10 07:01:44,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:01:44" (1/1) ... [2018-11-10 07:01:44,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:01:44" (1/1) ... [2018-11-10 07:01:44,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:01:44" (1/1) ... [2018-11-10 07:01:44,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:01:44" (1/1) ... [2018-11-10 07:01:44,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:01:44" (1/1) ... [2018-11-10 07:01:44,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:01:44,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:01:44,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:01:44,771 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:01:44,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:01:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6624e8dd-6ed7-467e-9345-c0cc26f50c73/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 [2018-11-10 07:01:44,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:01:44,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:01:44,819 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:01:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-10 07:01:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-10 07:01:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-10 07:01:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-10 07:01:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-10 07:01:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-10 07:01:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-10 07:01:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-10 07:01:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-10 07:01:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-10 07:01:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-10 07:01:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-10 07:01:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-10 07:01:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-10 07:01:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-10 07:01:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-10 07:01:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-10 07:01:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-10 07:01:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-10 07:01:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-10 07:01:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-10 07:01:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-10 07:01:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-10 07:01:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-10 07:01:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-10 07:01:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-10 07:01:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-10 07:01:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-10 07:01:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-10 07:01:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-10 07:01:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-10 07:01:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-10 07:01:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-10 07:01:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-10 07:01:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-10 07:01:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-10 07:01:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-10 07:01:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-10 07:01:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-10 07:01:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-10 07:01:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-10 07:01:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-10 07:01:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-10 07:01:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-10 07:01:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-10 07:01:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-10 07:01:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-10 07:01:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-10 07:01:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-10 07:01:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-10 07:01:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-10 07:01:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-10 07:01:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-10 07:01:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-10 07:01:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-10 07:01:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-10 07:01:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-10 07:01:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-10 07:01:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-10 07:01:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-10 07:01:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-10 07:01:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-10 07:01:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-10 07:01:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-10 07:01:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-10 07:01:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-10 07:01:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-10 07:01:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-10 07:01:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-10 07:01:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-10 07:01:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-10 07:01:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-10 07:01:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-10 07:01:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-10 07:01:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-10 07:01:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-10 07:01:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-10 07:01:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-10 07:01:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-10 07:01:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-10 07:01:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-10 07:01:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-10 07:01:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-10 07:01:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-10 07:01:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-10 07:01:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-10 07:01:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-10 07:01:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-10 07:01:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-10 07:01:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-10 07:01:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-10 07:01:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-10 07:01:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-10 07:01:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-10 07:01:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-10 07:01:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-10 07:01:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-10 07:01:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-10 07:01:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-10 07:01:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-10 07:01:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-10 07:01:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-10 07:01:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-10 07:01:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 07:01:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 07:01:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:01:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 07:01:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 07:01:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 07:01:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 07:01:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 07:01:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 07:01:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:01:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:01:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 07:01:45,102 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:01:45,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:01:45 BoogieIcfgContainer [2018-11-10 07:01:45,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:01:45,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:01:45,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:01:45,105 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:01:45,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:01:44" (1/3) ... [2018-11-10 07:01:45,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edd1c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:01:45, skipping insertion in model container [2018-11-10 07:01:45,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:01:44" (2/3) ... [2018-11-10 07:01:45,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edd1c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:01:45, skipping insertion in model container [2018-11-10 07:01:45,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:01:45" (3/3) ... [2018-11-10 07:01:45,107 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-token_false-unreach-call_false-valid-memcleanup.i [2018-11-10 07:01:45,113 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:01:45,118 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-10 07:01:45,127 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-10 07:01:45,147 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:01:45,147 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:01:45,147 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:01:45,148 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:01:45,148 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:01:45,148 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:01:45,148 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:01:45,148 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:01:45,148 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:01:45,162 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2018-11-10 07:01:45,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 07:01:45,166 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:01:45,166 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] [2018-11-10 07:01:45,168 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:01:45,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:01:45,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1838410810, now seen corresponding path program 1 times [2018-11-10 07:01:45,174 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:01:45,174 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:01:45,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:01:45,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:01:45,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:01:45,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:01:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:01:45,273 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:01:45,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 07:01:45,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 07:01:45,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 07:01:45,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:01:45,287 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 2 states. [2018-11-10 07:01:45,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:01:45,306 INFO L93 Difference]: Finished difference Result 152 states and 198 transitions. [2018-11-10 07:01:45,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 07:01:45,307 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-10 07:01:45,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:01:45,314 INFO L225 Difference]: With dead ends: 152 [2018-11-10 07:01:45,314 INFO L226 Difference]: Without dead ends: 71 [2018-11-10 07:01:45,317 INFO L605 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 [2018-11-10 07:01:45,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-11-10 07:01:45,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-11-10 07:01:45,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-10 07:01:45,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2018-11-10 07:01:45,342 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 20 [2018-11-10 07:01:45,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:01:45,343 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2018-11-10 07:01:45,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 07:01:45,343 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2018-11-10 07:01:45,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 07:01:45,343 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:01:45,343 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, 1] [2018-11-10 07:01:45,344 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:01:45,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:01:45,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1901409351, now seen corresponding path program 1 times [2018-11-10 07:01:45,344 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:01:45,344 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:01:45,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:01:45,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:01:45,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:01:45,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:01:45,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:01:45,437 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:01:45,437 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 07:01:45,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 07:01:45,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 07:01:45,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 07:01:45,439 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand 6 states. [2018-11-10 07:01:45,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:01:45,625 INFO L93 Difference]: Finished difference Result 126 states and 130 transitions. [2018-11-10 07:01:45,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 07:01:45,625 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-10 07:01:45,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:01:45,626 INFO L225 Difference]: With dead ends: 126 [2018-11-10 07:01:45,627 INFO L226 Difference]: Without dead ends: 124 [2018-11-10 07:01:45,628 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-11-10 07:01:45,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-11-10 07:01:45,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 69. [2018-11-10 07:01:45,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-10 07:01:45,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 71 transitions. [2018-11-10 07:01:45,635 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 71 transitions. Word has length 21 [2018-11-10 07:01:45,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:01:45,635 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 71 transitions. [2018-11-10 07:01:45,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 07:01:45,635 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2018-11-10 07:01:45,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 07:01:45,636 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:01:45,636 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, 1, 1] [2018-11-10 07:01:45,636 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:01:45,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:01:45,637 INFO L82 PathProgramCache]: Analyzing trace with hash -322611515, now seen corresponding path program 1 times [2018-11-10 07:01:45,637 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:01:45,637 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:01:45,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:01:45,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:01:45,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:01:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:01:45,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:01:45,697 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:01:45,697 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 07:01:45,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 07:01:45,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 07:01:45,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 07:01:45,697 INFO L87 Difference]: Start difference. First operand 69 states and 71 transitions. Second operand 5 states. [2018-11-10 07:01:45,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:01:45,796 INFO L93 Difference]: Finished difference Result 120 states and 124 transitions. [2018-11-10 07:01:45,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 07:01:45,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-11-10 07:01:45,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:01:45,797 INFO L225 Difference]: With dead ends: 120 [2018-11-10 07:01:45,798 INFO L226 Difference]: Without dead ends: 118 [2018-11-10 07:01:45,798 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-10 07:01:45,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-11-10 07:01:45,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 67. [2018-11-10 07:01:45,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-10 07:01:45,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 69 transitions. [2018-11-10 07:01:45,804 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 69 transitions. Word has length 22 [2018-11-10 07:01:45,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:01:45,804 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 69 transitions. [2018-11-10 07:01:45,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 07:01:45,805 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 69 transitions. [2018-11-10 07:01:45,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-10 07:01:45,805 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:01:45,805 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:01:45,806 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:01:45,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:01:45,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1442170615, now seen corresponding path program 1 times [2018-11-10 07:01:45,806 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:01:45,806 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:01:45,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:01:45,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:01:45,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:01:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:01:46,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:01:46,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:01:46,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-10 07:01:46,117 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-10 07:01:46,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-10 07:01:46,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-11-10 07:01:46,118 INFO L87 Difference]: Start difference. First operand 67 states and 69 transitions. Second operand 12 states. [2018-11-10 07:01:46,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:01:46,398 INFO L93 Difference]: Finished difference Result 187 states and 193 transitions. [2018-11-10 07:01:46,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-10 07:01:46,398 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2018-11-10 07:01:46,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:01:46,400 INFO L225 Difference]: With dead ends: 187 [2018-11-10 07:01:46,400 INFO L226 Difference]: Without dead ends: 150 [2018-11-10 07:01:46,400 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2018-11-10 07:01:46,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-11-10 07:01:46,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 82. [2018-11-10 07:01:46,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-11-10 07:01:46,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 85 transitions. [2018-11-10 07:01:46,409 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 85 transitions. Word has length 29 [2018-11-10 07:01:46,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:01:46,409 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 85 transitions. [2018-11-10 07:01:46,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-10 07:01:46,409 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 85 transitions. [2018-11-10 07:01:46,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-10 07:01:46,410 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:01:46,410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:01:46,411 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:01:46,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:01:46,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1443248057, now seen corresponding path program 1 times [2018-11-10 07:01:46,411 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:01:46,411 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:01:46,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:01:46,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:01:46,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:01:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:01:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:01:46,446 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 07:01:46,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:01:46 BoogieIcfgContainer [2018-11-10 07:01:46,469 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:01:46,470 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:01:46,470 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:01:46,470 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:01:46,470 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:01:45" (3/4) ... [2018-11-10 07:01:46,472 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 07:01:46,505 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6624e8dd-6ed7-467e-9345-c0cc26f50c73/bin-2019/uautomizer/witness.graphml [2018-11-10 07:01:46,506 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:01:46,506 INFO L168 Benchmark]: Toolchain (without parser) took 2099.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 957.5 MB in the beginning and 907.3 MB in the end (delta: 50.2 MB). Peak memory consumption was 206.4 MB. Max. memory is 11.5 GB. [2018-11-10 07:01:46,507 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:01:46,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.06 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 933.4 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-11-10 07:01:46,508 INFO L168 Benchmark]: Boogie Preprocessor took 80.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 933.4 MB in the beginning and 1.2 GB in the end (delta: -217.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:01:46,509 INFO L168 Benchmark]: RCFGBuilder took 331.36 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: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. [2018-11-10 07:01:46,509 INFO L168 Benchmark]: TraceAbstraction took 1366.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 910.7 MB in the end (delta: 190.6 MB). Peak memory consumption was 190.6 MB. Max. memory is 11.5 GB. [2018-11-10 07:01:46,509 INFO L168 Benchmark]: Witness Printer took 35.93 ms. Allocated memory is still 1.2 GB. Free memory is still 910.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:01:46,511 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 282.06 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 933.4 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 80.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 933.4 MB in the beginning and 1.2 GB in the end (delta: -217.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 331.36 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: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1366.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 910.7 MB in the end (delta: 190.6 MB). Peak memory consumption was 190.6 MB. Max. memory is 11.5 GB. * Witness Printer took 35.93 ms. Allocated memory is still 1.2 GB. Free memory is still 910.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1020]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L992] EXPR, FCALL malloc(sizeof(SLL)) VAL [malloc(sizeof(SLL))={11:0}] [L992] SLL* head = malloc(sizeof(SLL)); VAL [head={11:0}, malloc(sizeof(SLL))={11:0}] [L993] FCALL head->next = ((void*)0) VAL [head={11:0}, malloc(sizeof(SLL))={11:0}] [L994] FCALL head->data = 0 VAL [head={11:0}, malloc(sizeof(SLL))={11:0}] [L996] SLL* x = head; VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, x={11:0}] [L999] COND FALSE !(__VERIFIER_nondet_int()) [L1007] FCALL x->data = 1 VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, x={11:0}] [L1008] EXPR, FCALL malloc(sizeof(SLL)) VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, malloc(sizeof(SLL))={9:0}, x={11:0}] [L1008] FCALL x->next = malloc(sizeof(SLL)) VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, malloc(sizeof(SLL))={9:0}, x={11:0}] [L1009] EXPR, FCALL x->next VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, malloc(sizeof(SLL))={9:0}, x={11:0}, x->next={9:0}] [L1009] FCALL x->next->data = 2 VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, malloc(sizeof(SLL))={9:0}, x={11:0}, x->next={9:0}] [L1011] x = head VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, malloc(sizeof(SLL))={9:0}, x={11:0}] [L1013] COND FALSE !(!(((void*)0) != x)) VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, malloc(sizeof(SLL))={9:0}, x={11:0}] [L1013] COND FALSE !(0) VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, malloc(sizeof(SLL))={9:0}, x={11:0}] [L1015] EXPR, FCALL x->data VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, malloc(sizeof(SLL))={9:0}, x={11:0}, x->data=1] [L1015] COND FALSE !(1 != x->data) [L1020] EXPR, FCALL x->data VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, malloc(sizeof(SLL))={9:0}, x={11:0}, x->data=1] [L1020] COND TRUE !(2 == x->data) [L1020] __VERIFIER_error() VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, malloc(sizeof(SLL))={9:0}, x={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 81 locations, 6 error locations. UNSAFE Result, 1.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 289 SDtfs, 703 SDslu, 611 SDs, 0 SdLazy, 345 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=4, 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, 4 MinimizatonAttempts, 174 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 9783 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...