./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-sorted_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0792086f-7227-4a31-9dfe-97bbf236dca3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0792086f-7227-4a31-9dfe-97bbf236dca3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0792086f-7227-4a31-9dfe-97bbf236dca3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0792086f-7227-4a31-9dfe-97bbf236dca3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-sorted_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0792086f-7227-4a31-9dfe-97bbf236dca3/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0792086f-7227-4a31-9dfe-97bbf236dca3/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 3d1a973dcd7009ffcd2eda1338249f4d290fb62a ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:51:00,995 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:51:00,996 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:51:01,005 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:51:01,005 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:51:01,006 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:51:01,007 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:51:01,008 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:51:01,010 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:51:01,010 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:51:01,011 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:51:01,011 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:51:01,012 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:51:01,012 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:51:01,013 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:51:01,014 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:51:01,014 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:51:01,016 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:51:01,017 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:51:01,018 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:51:01,019 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:51:01,020 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:51:01,022 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:51:01,022 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:51:01,022 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:51:01,023 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:51:01,023 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:51:01,024 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:51:01,025 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:51:01,025 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:51:01,026 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:51:01,026 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:51:01,026 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:51:01,026 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:51:01,027 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:51:01,027 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:51:01,028 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0792086f-7227-4a31-9dfe-97bbf236dca3/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 10:51:01,038 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:51:01,038 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:51:01,038 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:51:01,038 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 10:51:01,039 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:51:01,039 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:51:01,039 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:51:01,039 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:51:01,040 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:51:01,040 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:51:01,040 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:51:01,040 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:51:01,040 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:51:01,040 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:51:01,040 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:51:01,040 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:51:01,041 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:51:01,041 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:51:01,041 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:51:01,041 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:51:01,041 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:51:01,041 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:51:01,041 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:51:01,042 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:51:01,042 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:51:01,042 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:51:01,042 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:51:01,042 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 10:51:01,042 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:51:01,042 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:51:01,043 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_0792086f-7227-4a31-9dfe-97bbf236dca3/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 -> 3d1a973dcd7009ffcd2eda1338249f4d290fb62a [2018-11-18 10:51:01,064 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:51:01,073 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:51:01,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:51:01,077 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:51:01,077 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:51:01,077 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0792086f-7227-4a31-9dfe-97bbf236dca3/bin-2019/uautomizer/../../sv-benchmarks/c/forester-heap/dll-sorted_false-unreach-call_false-valid-memcleanup.i [2018-11-18 10:51:01,120 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0792086f-7227-4a31-9dfe-97bbf236dca3/bin-2019/uautomizer/data/643e33922/fdcccd40c6ce4a9eae0f400622e68bf1/FLAGc54ea3e36 [2018-11-18 10:51:01,571 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:51:01,572 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0792086f-7227-4a31-9dfe-97bbf236dca3/sv-benchmarks/c/forester-heap/dll-sorted_false-unreach-call_false-valid-memcleanup.i [2018-11-18 10:51:01,579 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0792086f-7227-4a31-9dfe-97bbf236dca3/bin-2019/uautomizer/data/643e33922/fdcccd40c6ce4a9eae0f400622e68bf1/FLAGc54ea3e36 [2018-11-18 10:51:01,589 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0792086f-7227-4a31-9dfe-97bbf236dca3/bin-2019/uautomizer/data/643e33922/fdcccd40c6ce4a9eae0f400622e68bf1 [2018-11-18 10:51:01,591 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:51:01,592 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 10:51:01,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:51:01,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:51:01,597 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:51:01,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:51:01" (1/1) ... [2018-11-18 10:51:01,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5feb133c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:01, skipping insertion in model container [2018-11-18 10:51:01,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:51:01" (1/1) ... [2018-11-18 10:51:01,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:51:01,643 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:51:01,844 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:51:01,850 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:51:01,886 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:51:01,968 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:51:01,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:01 WrapperNode [2018-11-18 10:51:01,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:51:01,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:51:01,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:51:01,970 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:51:01,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:01" (1/1) ... [2018-11-18 10:51:01,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:01" (1/1) ... [2018-11-18 10:51:01,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:01" (1/1) ... [2018-11-18 10:51:01,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:01" (1/1) ... [2018-11-18 10:51:02,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:01" (1/1) ... [2018-11-18 10:51:02,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:01" (1/1) ... [2018-11-18 10:51:02,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:01" (1/1) ... [2018-11-18 10:51:02,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:51:02,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:51:02,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:51:02,015 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:51:02,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0792086f-7227-4a31-9dfe-97bbf236dca3/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:51:02,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:51:02,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:51:02,060 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:51:02,060 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-18 10:51:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-18 10:51:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-18 10:51:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-18 10:51:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-18 10:51:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-18 10:51:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-18 10:51:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-18 10:51:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-18 10:51:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-18 10:51:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-18 10:51:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-18 10:51:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-18 10:51:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-18 10:51:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-18 10:51:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-18 10:51:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-18 10:51:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-18 10:51:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-18 10:51:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-18 10:51:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-18 10:51:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-18 10:51:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-18 10:51:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-18 10:51:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-18 10:51:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-18 10:51:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-18 10:51:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-18 10:51:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-18 10:51:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-18 10:51:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-18 10:51:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-18 10:51:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-18 10:51:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-18 10:51:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-18 10:51:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-18 10:51:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-18 10:51:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-18 10:51:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-18 10:51:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-18 10:51:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-18 10:51:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-18 10:51:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-18 10:51:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-18 10:51:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-18 10:51:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-18 10:51:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-18 10:51:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-18 10:51:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-18 10:51:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-18 10:51:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-18 10:51:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-18 10:51:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-18 10:51:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-18 10:51:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-18 10:51:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-18 10:51:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-18 10:51:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-18 10:51:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-18 10:51:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-18 10:51:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-18 10:51:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-18 10:51:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-18 10:51:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 10:51:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-18 10:51:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-18 10:51:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-18 10:51:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-18 10:51:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-18 10:51:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-18 10:51:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-18 10:51:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-18 10:51:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-18 10:51:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-18 10:51:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-18 10:51:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-18 10:51:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-18 10:51:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-18 10:51:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-18 10:51:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-18 10:51:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-18 10:51:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-18 10:51:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-18 10:51:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-18 10:51:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-18 10:51:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-18 10:51:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-18 10:51:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-18 10:51:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-18 10:51:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-18 10:51:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-18 10:51:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-18 10:51:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-18 10:51:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-18 10:51:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-18 10:51:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-18 10:51:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-18 10:51:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-18 10:51:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-18 10:51:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-18 10:51:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-18 10:51:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-18 10:51:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-18 10:51:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 10:51:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 10:51:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:51:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:51:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 10:51:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 10:51:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 10:51:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 10:51:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:51:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:51:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:51:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 10:51:02,460 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:51:02,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:51:02 BoogieIcfgContainer [2018-11-18 10:51:02,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:51:02,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:51:02,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:51:02,463 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:51:02,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:51:01" (1/3) ... [2018-11-18 10:51:02,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d2a32e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:51:02, skipping insertion in model container [2018-11-18 10:51:02,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:01" (2/3) ... [2018-11-18 10:51:02,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d2a32e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:51:02, skipping insertion in model container [2018-11-18 10:51:02,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:51:02" (3/3) ... [2018-11-18 10:51:02,466 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-sorted_false-unreach-call_false-valid-memcleanup.i [2018-11-18 10:51:02,472 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:51:02,479 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-18 10:51:02,488 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-18 10:51:02,508 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:51:02,509 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:51:02,509 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:51:02,509 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:51:02,509 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:51:02,509 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:51:02,509 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:51:02,510 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:51:02,510 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:51:02,524 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2018-11-18 10:51:02,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 10:51:02,528 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:51:02,529 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:51:02,530 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:51:02,535 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:51:02,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1023559784, now seen corresponding path program 1 times [2018-11-18 10:51:02,536 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:51:02,537 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:51:02,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:51:02,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:51:02,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:51:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:51:02,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:51:02,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:51:02,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:51:02,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:51:02,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:51:02,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:51:02,636 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 2 states. [2018-11-18 10:51:02,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:51:02,653 INFO L93 Difference]: Finished difference Result 129 states and 195 transitions. [2018-11-18 10:51:02,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:51:02,654 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-18 10:51:02,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:51:02,660 INFO L225 Difference]: With dead ends: 129 [2018-11-18 10:51:02,660 INFO L226 Difference]: Without dead ends: 62 [2018-11-18 10:51:02,662 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:51:02,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-11-18 10:51:02,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-11-18 10:51:02,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-11-18 10:51:02,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2018-11-18 10:51:02,688 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 11 [2018-11-18 10:51:02,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:51:02,688 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2018-11-18 10:51:02,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:51:02,688 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2018-11-18 10:51:02,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 10:51:02,688 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:51:02,689 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:51:02,689 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:51:02,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:51:02,689 INFO L82 PathProgramCache]: Analyzing trace with hash 2122076678, now seen corresponding path program 1 times [2018-11-18 10:51:02,689 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:51:02,689 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:51:02,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:51:02,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:51:02,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:51:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:51:02,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:51:02,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:51:02,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:51:02,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:51:02,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:51:02,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:51:02,728 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand 3 states. [2018-11-18 10:51:02,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:51:02,766 INFO L93 Difference]: Finished difference Result 125 states and 148 transitions. [2018-11-18 10:51:02,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:51:02,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-18 10:51:02,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:51:02,767 INFO L225 Difference]: With dead ends: 125 [2018-11-18 10:51:02,767 INFO L226 Difference]: Without dead ends: 69 [2018-11-18 10:51:02,768 INFO L604 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 [2018-11-18 10:51:02,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-18 10:51:02,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2018-11-18 10:51:02,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-18 10:51:02,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 78 transitions. [2018-11-18 10:51:02,774 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 78 transitions. Word has length 13 [2018-11-18 10:51:02,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:51:02,774 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 78 transitions. [2018-11-18 10:51:02,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:51:02,774 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 78 transitions. [2018-11-18 10:51:02,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 10:51:02,775 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:51:02,775 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:51:02,775 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:51:02,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:51:02,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1388213915, now seen corresponding path program 1 times [2018-11-18 10:51:02,776 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:51:02,776 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:51:02,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:51:02,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:51:02,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:51:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:51:02,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 10:51:02,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:51:02,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 10:51:02,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 10:51:02,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 10:51:02,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:51:02,829 INFO L87 Difference]: Start difference. First operand 67 states and 78 transitions. Second operand 4 states. [2018-11-18 10:51:02,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:51:02,951 INFO L93 Difference]: Finished difference Result 106 states and 124 transitions. [2018-11-18 10:51:02,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 10:51:02,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-11-18 10:51:02,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:51:02,952 INFO L225 Difference]: With dead ends: 106 [2018-11-18 10:51:02,952 INFO L226 Difference]: Without dead ends: 104 [2018-11-18 10:51:02,952 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:51:02,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-11-18 10:51:02,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 65. [2018-11-18 10:51:02,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-18 10:51:02,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2018-11-18 10:51:02,959 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 18 [2018-11-18 10:51:02,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:51:02,959 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2018-11-18 10:51:02,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 10:51:02,959 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2018-11-18 10:51:02,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 10:51:02,960 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:51:02,960 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 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] [2018-11-18 10:51:02,960 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:51:02,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:51:02,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1742810719, now seen corresponding path program 1 times [2018-11-18 10:51:02,960 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:51:02,961 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:51:02,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:51:02,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:51:02,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:51:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:51:03,045 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 10:51:03,046 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:51:03,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 10:51:03,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 10:51:03,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 10:51:03,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:51:03,047 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand 5 states. [2018-11-18 10:51:03,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:51:03,169 INFO L93 Difference]: Finished difference Result 111 states and 130 transitions. [2018-11-18 10:51:03,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 10:51:03,170 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-11-18 10:51:03,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:51:03,171 INFO L225 Difference]: With dead ends: 111 [2018-11-18 10:51:03,171 INFO L226 Difference]: Without dead ends: 71 [2018-11-18 10:51:03,172 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:51:03,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-11-18 10:51:03,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2018-11-18 10:51:03,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-18 10:51:03,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 81 transitions. [2018-11-18 10:51:03,178 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 81 transitions. Word has length 30 [2018-11-18 10:51:03,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:51:03,178 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 81 transitions. [2018-11-18 10:51:03,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 10:51:03,178 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 81 transitions. [2018-11-18 10:51:03,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 10:51:03,179 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:51:03,179 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 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] [2018-11-18 10:51:03,179 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:51:03,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:51:03,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1744657761, now seen corresponding path program 1 times [2018-11-18 10:51:03,180 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:51:03,180 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:51:03,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:51:03,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:51:03,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:51:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:51:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:51:03,246 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 10:51:03,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:51:03 BoogieIcfgContainer [2018-11-18 10:51:03,271 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:51:03,271 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:51:03,271 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:51:03,272 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:51:03,272 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:51:02" (3/4) ... [2018-11-18 10:51:03,274 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 10:51:03,312 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0792086f-7227-4a31-9dfe-97bbf236dca3/bin-2019/uautomizer/witness.graphml [2018-11-18 10:51:03,312 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:51:03,312 INFO L168 Benchmark]: Toolchain (without parser) took 1720.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 957.0 MB in the beginning and 986.0 MB in the end (delta: -29.0 MB). Peak memory consumption was 97.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:51:03,314 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-11-18 10:51:03,314 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 957.0 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. [2018-11-18 10:51:03,314 INFO L168 Benchmark]: Boogie Preprocessor took 44.74 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: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:51:03,315 INFO L168 Benchmark]: RCFGBuilder took 446.23 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: 50.4 MB). Peak memory consumption was 50.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:51:03,315 INFO L168 Benchmark]: TraceAbstraction took 810.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.7 MB in the end (delta: 72.6 MB). Peak memory consumption was 72.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:51:03,315 INFO L168 Benchmark]: Witness Printer took 40.47 ms. Allocated memory is still 1.2 GB. Free memory was 988.7 MB in the beginning and 986.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:51:03,317 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 375.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 957.0 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.74 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: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 446.23 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: 50.4 MB). Peak memory consumption was 50.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 810.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.7 MB in the end (delta: 72.6 MB). Peak memory consumption was 72.6 MB. Max. memory is 11.5 GB. * Witness Printer took 40.47 ms. Allocated memory is still 1.2 GB. Free memory was 988.7 MB in the beginning and 986.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1027]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] FCALL head->data = 0 [L991] SLL* x = head; [L992] int marked = 0; VAL [head={14:0}, malloc(sizeof(SLL))={14:0}, marked=0, x={14:0}] [L995] COND TRUE __VERIFIER_nondet_int() || !marked [L998] EXPR, FCALL malloc(sizeof(SLL)) [L998] FCALL x->next = malloc(sizeof(SLL)) [L999] EXPR, FCALL x->next [L999] FCALL x->next->prev = x [L1000] EXPR, FCALL x->next [L1000] x = x->next [L1001] FCALL x->next = ((void*)0) [L1003] COND TRUE __VERIFIER_nondet_int() [L1005] marked = 1 VAL [head={14:0}, malloc(sizeof(SLL))={15:0}, malloc(sizeof(SLL))={14:0}, marked=1, x={15:0}] [L1008] COND TRUE \read(marked) [L1009] FCALL x->data = 1 VAL [head={14:0}, malloc(sizeof(SLL))={15:0}, malloc(sizeof(SLL))={14:0}, marked=1, x={15:0}] [L995] COND FALSE !(__VERIFIER_nondet_int() || !marked) [L1014] x = head VAL [head={14:0}, malloc(sizeof(SLL))={15:0}, malloc(sizeof(SLL))={14:0}, marked=1, x={14:0}] [L1016] COND FALSE !(!(((void*)0) != x)) VAL [head={14:0}, malloc(sizeof(SLL))={15:0}, malloc(sizeof(SLL))={14:0}, marked=1, x={14:0}] [L1016] COND FALSE !(0) VAL [head={14:0}, malloc(sizeof(SLL))={15:0}, malloc(sizeof(SLL))={14:0}, marked=1, x={14:0}] [L1017] marked = 0 VAL [head={14:0}, malloc(sizeof(SLL))={15:0}, malloc(sizeof(SLL))={14:0}, marked=0, x={14:0}] [L1019] EXPR, FCALL x->next [L1019] x->next != ((void*)0) && x->next->data == 0 [L1019] EXPR, FCALL x->next [L1019] EXPR, FCALL x->next->data [L1019] x->next != ((void*)0) && x->next->data == 0 VAL [head={14:0}, malloc(sizeof(SLL))={15:0}, malloc(sizeof(SLL))={14:0}, marked=0, x={14:0}, x->next={15:0}, x->next={15:0}, x->next != ((void*)0) && x->next->data == 0=0, x->next->data=1] [L1019] COND FALSE !(x->next != ((void*)0) && x->next->data == 0) [L1024] EXPR, FCALL x->next [L1024] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1024] x->next != ((void*)0) && __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, head={14:0}, malloc(sizeof(SLL))={15:0}, malloc(sizeof(SLL))={14:0}, marked=0, x={14:0}, x->next={15:0}, x->next != ((void*)0) && __VERIFIER_nondet_int()=1] [L1024] COND TRUE x->next != ((void*)0) && __VERIFIER_nondet_int() [L1026] EXPR, FCALL x->next [L1026] x = x->next [L1027] EXPR, FCALL x->data VAL [head={14:0}, malloc(sizeof(SLL))={15:0}, malloc(sizeof(SLL))={14:0}, marked=0, x={15:0}, x->data=1] [L1027] COND TRUE !(x->data != 1) [L1027] __VERIFIER_error() VAL [head={14:0}, malloc(sizeof(SLL))={15:0}, malloc(sizeof(SLL))={14:0}, marked=0, x={15:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 70 locations, 6 error locations. UNSAFE Result, 0.7s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 263 SDtfs, 186 SDslu, 179 SDs, 0 SdLazy, 91 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 43 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 3921 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...