./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-circular_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_13b54bae-b85e-499b-9cde-a8f52920637c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_13b54bae-b85e-499b-9cde-a8f52920637c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_13b54bae-b85e-499b-9cde-a8f52920637c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_13b54bae-b85e-499b-9cde-a8f52920637c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-circular_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_13b54bae-b85e-499b-9cde-a8f52920637c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_13b54bae-b85e-499b-9cde-a8f52920637c/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 95b20088216028e3d05e3cb41d4ed5c20af6a751 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 05:26:52,757 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:26:52,757 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:26:52,763 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:26:52,764 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:26:52,764 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:26:52,765 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:26:52,766 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:26:52,767 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:26:52,768 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:26:52,768 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:26:52,769 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:26:52,769 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:26:52,770 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:26:52,770 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:26:52,771 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:26:52,771 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:26:52,772 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:26:52,774 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:26:52,774 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:26:52,775 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:26:52,776 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:26:52,778 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:26:52,778 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:26:52,778 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:26:52,778 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:26:52,779 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:26:52,779 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:26:52,780 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:26:52,780 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:26:52,780 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:26:52,781 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:26:52,781 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:26:52,781 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:26:52,782 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:26:52,782 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:26:52,782 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_13b54bae-b85e-499b-9cde-a8f52920637c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 05:26:52,792 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:26:52,792 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:26:52,792 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:26:52,793 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 05:26:52,793 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 05:26:52,793 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 05:26:52,793 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 05:26:52,794 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:26:52,794 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:26:52,794 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:26:52,794 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:26:52,794 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:26:52,794 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:26:52,794 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:26:52,794 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:26:52,795 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:26:52,795 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:26:52,795 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:26:52,795 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:26:52,795 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:26:52,795 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:26:52,795 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:26:52,795 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:26:52,796 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:26:52,796 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:26:52,796 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:26:52,796 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 05:26:52,796 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:26:52,796 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:26:52,796 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_13b54bae-b85e-499b-9cde-a8f52920637c/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 -> 95b20088216028e3d05e3cb41d4ed5c20af6a751 [2018-11-10 05:26:52,819 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:26:52,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:26:52,831 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:26:52,832 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:26:52,833 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:26:52,833 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_13b54bae-b85e-499b-9cde-a8f52920637c/bin-2019/uautomizer/../../sv-benchmarks/c/forester-heap/dll-circular_false-unreach-call_false-valid-memcleanup.i [2018-11-10 05:26:52,876 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_13b54bae-b85e-499b-9cde-a8f52920637c/bin-2019/uautomizer/data/ac5349de5/409fe5d28b0f4dbd8040b90319281d7a/FLAGf422f2bb8 [2018-11-10 05:26:53,316 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:26:53,317 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_13b54bae-b85e-499b-9cde-a8f52920637c/sv-benchmarks/c/forester-heap/dll-circular_false-unreach-call_false-valid-memcleanup.i [2018-11-10 05:26:53,325 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_13b54bae-b85e-499b-9cde-a8f52920637c/bin-2019/uautomizer/data/ac5349de5/409fe5d28b0f4dbd8040b90319281d7a/FLAGf422f2bb8 [2018-11-10 05:26:53,334 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_13b54bae-b85e-499b-9cde-a8f52920637c/bin-2019/uautomizer/data/ac5349de5/409fe5d28b0f4dbd8040b90319281d7a [2018-11-10 05:26:53,336 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:26:53,337 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 05:26:53,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:26:53,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:26:53,340 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:26:53,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:26:53" (1/1) ... [2018-11-10 05:26:53,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@572af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:26:53, skipping insertion in model container [2018-11-10 05:26:53,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:26:53" (1/1) ... [2018-11-10 05:26:53,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:26:53,375 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:26:53,551 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:26:53,557 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:26:53,587 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:26:53,617 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:26:53,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:26:53 WrapperNode [2018-11-10 05:26:53,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:26:53,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:26:53,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:26:53,618 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:26:53,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:26:53" (1/1) ... [2018-11-10 05:26:53,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:26:53" (1/1) ... [2018-11-10 05:26:53,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:26:53" (1/1) ... [2018-11-10 05:26:53,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:26:53" (1/1) ... [2018-11-10 05:26:53,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:26:53" (1/1) ... [2018-11-10 05:26:53,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:26:53" (1/1) ... [2018-11-10 05:26:53,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:26:53" (1/1) ... [2018-11-10 05:26:53,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:26:53,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:26:53,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:26:53,718 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:26:53,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:26:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13b54bae-b85e-499b-9cde-a8f52920637c/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 05:26:53,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:26:53,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:26:53,757 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:26:53,757 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-10 05:26:53,757 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-10 05:26:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-10 05:26:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-10 05:26:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-10 05:26:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-10 05:26:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-10 05:26:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-10 05:26:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-10 05:26:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-10 05:26:53,759 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-10 05:26:53,759 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-10 05:26:53,759 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-10 05:26:53,759 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-10 05:26:53,759 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-10 05:26:53,759 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-10 05:26:53,759 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-10 05:26:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-10 05:26:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-10 05:26:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-10 05:26:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-10 05:26:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-10 05:26:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-10 05:26:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-10 05:26:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-10 05:26:53,761 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-10 05:26:53,761 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-10 05:26:53,761 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-10 05:26:53,761 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-10 05:26:53,761 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-10 05:26:53,761 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-10 05:26:53,761 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-10 05:26:53,761 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-10 05:26:53,761 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-10 05:26:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-10 05:26:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-10 05:26:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-10 05:26:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-10 05:26:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-10 05:26:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-10 05:26:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-10 05:26:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-10 05:26:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-10 05:26:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-10 05:26:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-10 05:26:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-10 05:26:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-10 05:26:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-10 05:26:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-10 05:26:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-10 05:26:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-10 05:26:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-10 05:26:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-10 05:26:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-10 05:26:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-10 05:26:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-10 05:26:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-10 05:26:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-10 05:26:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-10 05:26:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-10 05:26:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-10 05:26:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-10 05:26:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-10 05:26:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-10 05:26:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-10 05:26:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-10 05:26:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-10 05:26:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-10 05:26:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-10 05:26:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-10 05:26:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-10 05:26:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-10 05:26:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-10 05:26:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-10 05:26:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-10 05:26:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-10 05:26:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-10 05:26:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-10 05:26:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-10 05:26:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-10 05:26:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-10 05:26:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-10 05:26:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-10 05:26:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-10 05:26:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-10 05:26:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-10 05:26:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-10 05:26:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-10 05:26:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-10 05:26:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-10 05:26:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-10 05:26:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-10 05:26:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-10 05:26:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-10 05:26:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-10 05:26:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-10 05:26:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-10 05:26:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-10 05:26:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-10 05:26:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-10 05:26:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-10 05:26:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-10 05:26:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-10 05:26:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 05:26:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 05:26:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:26:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 05:26:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 05:26:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 05:26:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 05:26:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 05:26:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 05:26:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:26:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:26:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 05:26:54,105 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:26:54,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:26:54 BoogieIcfgContainer [2018-11-10 05:26:54,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:26:54,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:26:54,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:26:54,113 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:26:54,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:26:53" (1/3) ... [2018-11-10 05:26:54,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f06a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:26:54, skipping insertion in model container [2018-11-10 05:26:54,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:26:53" (2/3) ... [2018-11-10 05:26:54,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f06a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:26:54, skipping insertion in model container [2018-11-10 05:26:54,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:26:54" (3/3) ... [2018-11-10 05:26:54,116 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-circular_false-unreach-call_false-valid-memcleanup.i [2018-11-10 05:26:54,123 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:26:54,129 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-10 05:26:54,140 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-10 05:26:54,163 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 05:26:54,164 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:26:54,164 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:26:54,164 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:26:54,164 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:26:54,164 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:26:54,164 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:26:54,165 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:26:54,165 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:26:54,180 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2018-11-10 05:26:54,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 05:26:54,185 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:26:54,186 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:26:54,188 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:26:54,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:26:54,194 INFO L82 PathProgramCache]: Analyzing trace with hash 391063561, now seen corresponding path program 1 times [2018-11-10 05:26:54,195 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:26:54,196 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:26:54,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:26:54,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:26:54,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:26:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:26:54,305 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 05:26:54,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:26:54,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:26:54,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 05:26:54,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 05:26:54,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 05:26:54,320 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 2 states. [2018-11-10 05:26:54,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:26:54,339 INFO L93 Difference]: Finished difference Result 132 states and 168 transitions. [2018-11-10 05:26:54,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 05:26:54,340 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-10 05:26:54,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:26:54,349 INFO L225 Difference]: With dead ends: 132 [2018-11-10 05:26:54,350 INFO L226 Difference]: Without dead ends: 57 [2018-11-10 05:26:54,353 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 05:26:54,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-11-10 05:26:54,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-11-10 05:26:54,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-11-10 05:26:54,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2018-11-10 05:26:54,381 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 17 [2018-11-10 05:26:54,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:26:54,382 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 62 transitions. [2018-11-10 05:26:54,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 05:26:54,382 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions. [2018-11-10 05:26:54,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 05:26:54,382 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:26:54,382 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:26:54,383 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:26:54,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:26:54,383 INFO L82 PathProgramCache]: Analyzing trace with hash 732386900, now seen corresponding path program 1 times [2018-11-10 05:26:54,383 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:26:54,383 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:26:54,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:26:54,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:26:54,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:26:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:26:54,470 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 05:26:54,470 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:26:54,470 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 05:26:54,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 05:26:54,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 05:26:54,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 05:26:54,472 INFO L87 Difference]: Start difference. First operand 57 states and 62 transitions. Second operand 7 states. [2018-11-10 05:26:54,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:26:54,676 INFO L93 Difference]: Finished difference Result 111 states and 119 transitions. [2018-11-10 05:26:54,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 05:26:54,677 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-10 05:26:54,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:26:54,678 INFO L225 Difference]: With dead ends: 111 [2018-11-10 05:26:54,678 INFO L226 Difference]: Without dead ends: 109 [2018-11-10 05:26:54,679 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-11-10 05:26:54,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-11-10 05:26:54,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 65. [2018-11-10 05:26:54,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-10 05:26:54,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2018-11-10 05:26:54,689 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 19 [2018-11-10 05:26:54,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:26:54,689 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2018-11-10 05:26:54,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 05:26:54,689 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2018-11-10 05:26:54,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 05:26:54,690 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:26:54,690 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] [2018-11-10 05:26:54,691 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:26:54,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:26:54,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1526198359, now seen corresponding path program 1 times [2018-11-10 05:26:54,691 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:26:54,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:26:54,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:26:54,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:26:54,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:26:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:26:54,850 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 05:26:54,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:26:54,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-10 05:26:54,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 05:26:54,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 05:26:54,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-11-10 05:26:54,851 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand 11 states. [2018-11-10 05:26:55,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:26:55,158 INFO L93 Difference]: Finished difference Result 96 states and 106 transitions. [2018-11-10 05:26:55,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 05:26:55,159 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2018-11-10 05:26:55,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:26:55,160 INFO L225 Difference]: With dead ends: 96 [2018-11-10 05:26:55,160 INFO L226 Difference]: Without dead ends: 94 [2018-11-10 05:26:55,161 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2018-11-10 05:26:55,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-11-10 05:26:55,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 80. [2018-11-10 05:26:55,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-11-10 05:26:55,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2018-11-10 05:26:55,171 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 27 [2018-11-10 05:26:55,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:26:55,171 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2018-11-10 05:26:55,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 05:26:55,172 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2018-11-10 05:26:55,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-10 05:26:55,172 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:26:55,173 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 05:26:55,173 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:26:55,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:26:55,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1976292360, now seen corresponding path program 1 times [2018-11-10 05:26:55,174 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:26:55,174 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:26:55,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:26:55,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:26:55,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:26:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:26:55,413 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 05:26:55,414 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:26:55,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-10 05:26:55,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-10 05:26:55,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-10 05:26:55,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-11-10 05:26:55,415 INFO L87 Difference]: Start difference. First operand 80 states and 89 transitions. Second operand 12 states. [2018-11-10 05:26:55,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:26:55,772 INFO L93 Difference]: Finished difference Result 135 states and 147 transitions. [2018-11-10 05:26:55,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-10 05:26:55,772 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2018-11-10 05:26:55,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:26:55,773 INFO L225 Difference]: With dead ends: 135 [2018-11-10 05:26:55,773 INFO L226 Difference]: Without dead ends: 117 [2018-11-10 05:26:55,774 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2018-11-10 05:26:55,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-11-10 05:26:55,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 89. [2018-11-10 05:26:55,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-11-10 05:26:55,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2018-11-10 05:26:55,780 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 29 [2018-11-10 05:26:55,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:26:55,781 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2018-11-10 05:26:55,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-10 05:26:55,781 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2018-11-10 05:26:55,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-10 05:26:55,782 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:26:55,782 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, 1, 1] [2018-11-10 05:26:55,783 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:26:55,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:26:55,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1768652194, now seen corresponding path program 1 times [2018-11-10 05:26:55,783 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:26:55,784 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:26:55,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:26:55,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:26:55,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:26:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:26:55,808 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 05:26:55,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:26:55,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 05:26:55,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 05:26:55,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 05:26:55,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:26:55,809 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand 3 states. [2018-11-10 05:26:55,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:26:55,820 INFO L93 Difference]: Finished difference Result 188 states and 206 transitions. [2018-11-10 05:26:55,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 05:26:55,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-11-10 05:26:55,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:26:55,822 INFO L225 Difference]: With dead ends: 188 [2018-11-10 05:26:55,822 INFO L226 Difference]: Without dead ends: 137 [2018-11-10 05:26:55,823 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:26:55,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-11-10 05:26:55,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 109. [2018-11-10 05:26:55,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-11-10 05:26:55,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 119 transitions. [2018-11-10 05:26:55,830 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 119 transitions. Word has length 31 [2018-11-10 05:26:55,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:26:55,830 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 119 transitions. [2018-11-10 05:26:55,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 05:26:55,831 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 119 transitions. [2018-11-10 05:26:55,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 05:26:55,831 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:26:55,832 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, 1, 1, 1, 1] [2018-11-10 05:26:55,832 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:26:55,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:26:55,832 INFO L82 PathProgramCache]: Analyzing trace with hash -148384700, now seen corresponding path program 1 times [2018-11-10 05:26:55,832 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:26:55,832 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:26:55,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:26:55,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:26:55,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:26:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:26:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:26:55,871 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 05:26:55,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:26:55 BoogieIcfgContainer [2018-11-10 05:26:55,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:26:55,901 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:26:55,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:26:55,901 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:26:55,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:26:54" (3/4) ... [2018-11-10 05:26:55,905 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 05:26:55,943 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_13b54bae-b85e-499b-9cde-a8f52920637c/bin-2019/uautomizer/witness.graphml [2018-11-10 05:26:55,943 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:26:55,944 INFO L168 Benchmark]: Toolchain (without parser) took 2607.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -144.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:26:55,945 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:26:55,945 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.30 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 933.5 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-11-10 05:26:55,945 INFO L168 Benchmark]: Boogie Preprocessor took 99.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 933.5 MB in the beginning and 1.1 GB in the end (delta: -201.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:26:55,946 INFO L168 Benchmark]: RCFGBuilder took 387.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:26:55,946 INFO L168 Benchmark]: TraceAbstraction took 1794.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -17.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:26:55,947 INFO L168 Benchmark]: Witness Printer took 42.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-10 05:26:55,952 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 280.30 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 933.5 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 99.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 933.5 MB in the beginning and 1.1 GB in the end (delta: -201.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 387.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1794.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -17.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 42.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1023]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L986] EXPR, FCALL malloc(sizeof(SLL)) VAL [malloc(sizeof(SLL))={14:0}] [L986] SLL* head = malloc(sizeof(SLL)); VAL [head={14:0}, malloc(sizeof(SLL))={14:0}] [L987] FCALL head->next = head VAL [head={14:0}, malloc(sizeof(SLL))={14:0}] [L988] FCALL head->data = 0 VAL [head={14:0}, malloc(sizeof(SLL))={14:0}] [L990] SLL* x = head; [L991] int state = 1; VAL [head={14:0}, malloc(sizeof(SLL))={14:0}, state=1, x={14:0}] [L994] COND FALSE !(__VERIFIER_nondet_int()) [L1016] FCALL x->data = state VAL [head={14:0}, malloc(sizeof(SLL))={14:0}, state=1, x={14:0}] [L1018] EXPR, FCALL head->next VAL [head={14:0}, head->next={14:0}, malloc(sizeof(SLL))={14:0}, state=1, x={14:0}] [L1018] x = head->next [L1019] COND FALSE !(!(((void*)0) != x)) VAL [head={14:0}, malloc(sizeof(SLL))={14:0}, state=1, x={14:0}] [L1019] COND FALSE !(0) VAL [head={14:0}, malloc(sizeof(SLL))={14:0}, state=1, x={14:0}] [L1021] EXPR, FCALL x->data VAL [head={14:0}, malloc(sizeof(SLL))={14:0}, state=1, x={14:0}, x->data=1] [L1021] COND TRUE x->data != 0 [L1023] EXPR, FCALL x->next VAL [head={14:0}, malloc(sizeof(SLL))={14:0}, state=1, x={14:0}, x->next={14:0}] [L1023] EXPR, FCALL x->next->data VAL [head={14:0}, malloc(sizeof(SLL))={14:0}, state=1, x={14:0}, x->next={14:0}, x->next->data=1] [L1023] EXPR x->next->data != 0 && x->data > x->next->data VAL [head={14:0}, malloc(sizeof(SLL))={14:0}, state=1, x={14:0}, x->next={14:0}, x->next->data=1, x->next->data != 0 && x->data > x->next->data=1] [L1023] EXPR, FCALL x->data VAL [head={14:0}, malloc(sizeof(SLL))={14:0}, state=1, x={14:0}, x->data=1, x->next={14:0}, x->next->data=1, x->next->data != 0 && x->data > x->next->data=1] [L1023] EXPR, FCALL x->next VAL [head={14:0}, malloc(sizeof(SLL))={14:0}, state=1, x={14:0}, x->data=1, x->next={14:0}, x->next={14:0}, x->next->data=1, x->next->data != 0 && x->data > x->next->data=1] [L1023] EXPR, FCALL x->next->data VAL [head={14:0}, malloc(sizeof(SLL))={14:0}, state=1, x={14:0}, x->data=1, x->next={14:0}, x->next={14:0}, x->next->data=1, x->next->data=1, x->next->data != 0 && x->data > x->next->data=1] [L1023] EXPR x->next->data != 0 && x->data > x->next->data VAL [head={14:0}, malloc(sizeof(SLL))={14:0}, state=1, x={14:0}, x->data=1, x->next={14:0}, x->next={14:0}, x->next->data=1, x->next->data=1, x->next->data != 0 && x->data > x->next->data=0] [L1023] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L1023] __VERIFIER_error() VAL [head={14:0}, malloc(sizeof(SLL))={14:0}, state=1, x={14:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 71 locations, 3 error locations. UNSAFE Result, 1.7s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 277 SDtfs, 762 SDslu, 864 SDs, 0 SdLazy, 518 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=5, 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, 5 MinimizatonAttempts, 114 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 16234 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...