./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/array-memsafety/cstrncpy-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/array-memsafety/cstrncpy-alloca_true-valid-memsafety_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a42c021ebd0de645918b065980a1f8d912cba85d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 22:43:22,767 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 22:43:22,769 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 22:43:22,784 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 22:43:22,786 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 22:43:22,787 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 22:43:22,790 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 22:43:22,796 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 22:43:22,798 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 22:43:22,800 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 22:43:22,801 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 22:43:22,801 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 22:43:22,803 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 22:43:22,804 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 22:43:22,805 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 22:43:22,809 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 22:43:22,810 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 22:43:22,811 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 22:43:22,814 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 22:43:22,815 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 22:43:22,816 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 22:43:22,818 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 22:43:22,821 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 22:43:22,821 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 22:43:22,821 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 22:43:22,823 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 22:43:22,824 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 22:43:22,824 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 22:43:22,826 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 22:43:22,827 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 22:43:22,827 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 22:43:22,828 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 22:43:22,828 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 22:43:22,829 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 22:43:22,830 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 22:43:22,831 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 22:43:22,831 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 22:43:22,846 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 22:43:22,847 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 22:43:22,848 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 22:43:22,848 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 22:43:22,848 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 22:43:22,849 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 22:43:22,849 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 22:43:22,849 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 22:43:22,849 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 22:43:22,849 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 22:43:22,851 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 22:43:22,851 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 22:43:22,851 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 22:43:22,851 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 22:43:22,852 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 22:43:22,852 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 22:43:22,853 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 22:43:22,853 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 22:43:22,853 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 22:43:22,854 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 22:43:22,854 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 22:43:22,854 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 22:43:22,854 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 22:43:22,854 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:43:22,854 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 22:43:22,856 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 22:43:22,856 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 22:43:22,856 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 22:43:22,857 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> a42c021ebd0de645918b065980a1f8d912cba85d [2018-11-28 22:43:22,901 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 22:43:22,914 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 22:43:22,918 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 22:43:22,920 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 22:43:22,920 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 22:43:22,921 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-memsafety/cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-11-28 22:43:22,983 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7848dd2b/67e04996d086408ea25ae5def193681f/FLAGa34331cfe [2018-11-28 22:43:23,533 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 22:43:23,534 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/array-memsafety/cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-11-28 22:43:23,564 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7848dd2b/67e04996d086408ea25ae5def193681f/FLAGa34331cfe [2018-11-28 22:43:23,776 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7848dd2b/67e04996d086408ea25ae5def193681f [2018-11-28 22:43:23,780 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 22:43:23,781 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 22:43:23,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 22:43:23,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 22:43:23,789 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 22:43:23,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:43:23" (1/1) ... [2018-11-28 22:43:23,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1929082e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:23, skipping insertion in model container [2018-11-28 22:43:23,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:43:23" (1/1) ... [2018-11-28 22:43:23,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 22:43:23,852 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 22:43:24,216 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:43:24,228 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 22:43:24,273 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:43:24,342 INFO L195 MainTranslator]: Completed translation [2018-11-28 22:43:24,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:24 WrapperNode [2018-11-28 22:43:24,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 22:43:24,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 22:43:24,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 22:43:24,345 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 22:43:24,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:24" (1/1) ... [2018-11-28 22:43:24,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:24" (1/1) ... [2018-11-28 22:43:24,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:24" (1/1) ... [2018-11-28 22:43:24,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:24" (1/1) ... [2018-11-28 22:43:24,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:24" (1/1) ... [2018-11-28 22:43:24,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:24" (1/1) ... [2018-11-28 22:43:24,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:24" (1/1) ... [2018-11-28 22:43:24,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 22:43:24,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 22:43:24,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 22:43:24,496 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 22:43:24,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 22:43:24,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 22:43:24,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 22:43:24,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-28 22:43:24,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-28 22:43:24,575 INFO L138 BoogieDeclarations]: Found implementation of procedure cstrncpy [2018-11-28 22:43:24,575 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 22:43:24,576 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-28 22:43:24,576 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-28 22:43:24,576 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 22:43:24,576 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 22:43:24,576 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 22:43:24,576 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 22:43:24,576 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 22:43:24,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 22:43:24,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 22:43:24,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 22:43:24,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 22:43:24,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 22:43:24,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 22:43:24,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 22:43:24,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 22:43:24,583 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 22:43:24,583 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 22:43:24,583 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 22:43:24,583 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 22:43:24,583 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 22:43:24,584 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 22:43:24,584 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 22:43:24,584 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 22:43:24,584 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 22:43:24,584 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 22:43:24,584 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 22:43:24,584 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 22:43:24,584 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 22:43:24,585 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 22:43:24,585 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 22:43:24,585 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 22:43:24,585 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 22:43:24,585 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 22:43:24,585 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 22:43:24,585 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 22:43:24,585 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 22:43:24,585 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 22:43:24,588 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 22:43:24,588 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 22:43:24,589 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 22:43:24,589 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 22:43:24,589 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 22:43:24,589 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 22:43:24,589 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 22:43:24,589 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 22:43:24,590 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 22:43:24,590 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 22:43:24,590 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 22:43:24,590 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 22:43:24,590 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 22:43:24,590 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 22:43:24,590 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 22:43:24,590 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 22:43:24,591 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 22:43:24,591 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 22:43:24,591 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 22:43:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 22:43:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 22:43:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 22:43:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 22:43:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 22:43:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 22:43:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 22:43:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 22:43:24,595 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 22:43:24,595 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 22:43:24,595 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 22:43:24,596 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 22:43:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 22:43:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 22:43:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 22:43:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 22:43:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 22:43:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 22:43:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 22:43:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 22:43:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 22:43:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 22:43:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 22:43:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 22:43:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 22:43:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 22:43:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 22:43:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 22:43:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 22:43:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 22:43:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 22:43:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 22:43:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 22:43:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 22:43:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 22:43:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 22:43:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 22:43:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 22:43:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 22:43:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 22:43:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 22:43:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 22:43:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 22:43:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 22:43:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 22:43:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 22:43:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 22:43:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure cstrncpy [2018-11-28 22:43:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 22:43:24,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 22:43:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 22:43:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 22:43:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 22:43:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 22:43:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 22:43:25,319 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 22:43:25,319 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 22:43:25,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:43:25 BoogieIcfgContainer [2018-11-28 22:43:25,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 22:43:25,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 22:43:25,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 22:43:25,325 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 22:43:25,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:43:23" (1/3) ... [2018-11-28 22:43:25,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f85ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:43:25, skipping insertion in model container [2018-11-28 22:43:25,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:24" (2/3) ... [2018-11-28 22:43:25,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f85ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:43:25, skipping insertion in model container [2018-11-28 22:43:25,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:43:25" (3/3) ... [2018-11-28 22:43:25,329 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-11-28 22:43:25,340 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 22:43:25,348 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-11-28 22:43:25,362 INFO L257 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2018-11-28 22:43:25,391 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 22:43:25,391 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 22:43:25,392 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 22:43:25,392 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 22:43:25,395 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 22:43:25,396 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 22:43:25,396 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 22:43:25,396 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 22:43:25,396 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 22:43:25,410 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-11-28 22:43:25,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 22:43:25,421 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:25,422 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:25,427 INFO L423 AbstractCegarLoop]: === Iteration 1 === [cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:43:25,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:25,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1056841845, now seen corresponding path program 1 times [2018-11-28 22:43:25,439 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:25,440 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:25,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:25,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:25,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:25,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:25,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:25,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:43:25,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:43:25,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:43:25,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:43:25,640 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2018-11-28 22:43:25,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:25,765 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2018-11-28 22:43:25,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:43:25,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 22:43:25,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:25,777 INFO L225 Difference]: With dead ends: 36 [2018-11-28 22:43:25,777 INFO L226 Difference]: Without dead ends: 33 [2018-11-28 22:43:25,779 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:43:25,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-28 22:43:25,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-28 22:43:25,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 22:43:25,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-11-28 22:43:25,816 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 10 [2018-11-28 22:43:25,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:25,816 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-11-28 22:43:25,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:43:25,817 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-11-28 22:43:25,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 22:43:25,817 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:25,817 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:25,819 INFO L423 AbstractCegarLoop]: === Iteration 2 === [cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:43:25,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:25,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1056841844, now seen corresponding path program 1 times [2018-11-28 22:43:25,819 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:25,819 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:25,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:25,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:25,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:25,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:25,932 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:25,932 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 22:43:25,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 22:43:25,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 22:43:25,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 22:43:25,937 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 4 states. [2018-11-28 22:43:25,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:25,971 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-11-28 22:43:25,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 22:43:25,972 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-28 22:43:25,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:25,973 INFO L225 Difference]: With dead ends: 32 [2018-11-28 22:43:25,973 INFO L226 Difference]: Without dead ends: 32 [2018-11-28 22:43:25,974 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 22:43:25,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-28 22:43:25,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-28 22:43:25,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 22:43:25,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-11-28 22:43:25,979 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 10 [2018-11-28 22:43:25,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:25,980 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-11-28 22:43:25,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 22:43:25,980 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-11-28 22:43:25,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 22:43:25,981 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:25,981 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:25,982 INFO L423 AbstractCegarLoop]: === Iteration 3 === [cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:43:25,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:25,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1498133944, now seen corresponding path program 1 times [2018-11-28 22:43:25,982 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:25,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:25,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:25,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:25,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:26,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:26,479 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:26,479 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 22:43:26,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 22:43:26,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 22:43:26,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-28 22:43:26,480 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 8 states. [2018-11-28 22:43:26,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:26,950 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2018-11-28 22:43:26,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 22:43:26,951 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2018-11-28 22:43:26,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:26,957 INFO L225 Difference]: With dead ends: 42 [2018-11-28 22:43:26,957 INFO L226 Difference]: Without dead ends: 42 [2018-11-28 22:43:26,958 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-28 22:43:26,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-28 22:43:26,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2018-11-28 22:43:26,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 22:43:26,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2018-11-28 22:43:26,970 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 14 [2018-11-28 22:43:26,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:26,971 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2018-11-28 22:43:26,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 22:43:26,971 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2018-11-28 22:43:26,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 22:43:26,972 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:26,972 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:26,972 INFO L423 AbstractCegarLoop]: === Iteration 4 === [cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:43:26,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:26,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1498133945, now seen corresponding path program 1 times [2018-11-28 22:43:26,975 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:26,975 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:26,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:26,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:26,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:27,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:27,165 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:27,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 22:43:27,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 22:43:27,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 22:43:27,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:43:27,168 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand 6 states. [2018-11-28 22:43:27,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:27,292 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2018-11-28 22:43:27,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 22:43:27,294 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-11-28 22:43:27,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:27,295 INFO L225 Difference]: With dead ends: 33 [2018-11-28 22:43:27,295 INFO L226 Difference]: Without dead ends: 33 [2018-11-28 22:43:27,296 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-28 22:43:27,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-28 22:43:27,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-28 22:43:27,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 22:43:27,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-11-28 22:43:27,301 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 14 [2018-11-28 22:43:27,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:27,302 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-11-28 22:43:27,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 22:43:27,303 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-11-28 22:43:27,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 22:43:27,303 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:27,303 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:27,304 INFO L423 AbstractCegarLoop]: === Iteration 5 === [cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:43:27,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:27,304 INFO L82 PathProgramCache]: Analyzing trace with hash 802487948, now seen corresponding path program 1 times [2018-11-28 22:43:27,304 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:27,305 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:27,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:27,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:27,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:27,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:27,482 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:27,482 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 22:43:27,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 22:43:27,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 22:43:27,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 22:43:27,483 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 7 states. [2018-11-28 22:43:27,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:27,624 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2018-11-28 22:43:27,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 22:43:27,632 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2018-11-28 22:43:27,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:27,633 INFO L225 Difference]: With dead ends: 32 [2018-11-28 22:43:27,634 INFO L226 Difference]: Without dead ends: 32 [2018-11-28 22:43:27,634 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-11-28 22:43:27,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-28 22:43:27,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-28 22:43:27,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 22:43:27,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2018-11-28 22:43:27,639 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 15 [2018-11-28 22:43:27,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:27,639 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2018-11-28 22:43:27,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 22:43:27,640 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2018-11-28 22:43:27,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 22:43:27,640 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:27,640 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:27,641 INFO L423 AbstractCegarLoop]: === Iteration 6 === [cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:43:27,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:27,641 INFO L82 PathProgramCache]: Analyzing trace with hash 802487949, now seen corresponding path program 1 times [2018-11-28 22:43:27,641 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:27,641 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:27,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:27,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:27,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:27,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:27,842 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:27,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 22:43:27,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 22:43:27,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 22:43:27,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 22:43:27,843 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand 7 states. [2018-11-28 22:43:27,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:27,949 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2018-11-28 22:43:27,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 22:43:27,951 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2018-11-28 22:43:27,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:27,952 INFO L225 Difference]: With dead ends: 37 [2018-11-28 22:43:27,952 INFO L226 Difference]: Without dead ends: 37 [2018-11-28 22:43:27,953 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-11-28 22:43:27,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-28 22:43:27,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2018-11-28 22:43:27,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 22:43:27,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-11-28 22:43:27,959 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 15 [2018-11-28 22:43:27,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:27,959 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-11-28 22:43:27,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 22:43:27,960 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-11-28 22:43:27,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 22:43:27,961 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:27,961 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:27,962 INFO L423 AbstractCegarLoop]: === Iteration 7 === [cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:43:27,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:27,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1102767525, now seen corresponding path program 1 times [2018-11-28 22:43:27,962 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:27,962 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:27,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:27,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:27,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:28,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:28,180 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:28,180 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 22:43:28,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:43:28,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:43:28,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:43:28,181 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 5 states. [2018-11-28 22:43:28,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:28,242 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2018-11-28 22:43:28,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:43:28,243 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-11-28 22:43:28,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:28,244 INFO L225 Difference]: With dead ends: 36 [2018-11-28 22:43:28,245 INFO L226 Difference]: Without dead ends: 33 [2018-11-28 22:43:28,245 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:43:28,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-28 22:43:28,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-28 22:43:28,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 22:43:28,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-11-28 22:43:28,249 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 18 [2018-11-28 22:43:28,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:28,249 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-11-28 22:43:28,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:43:28,250 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-11-28 22:43:28,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 22:43:28,250 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:28,250 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:28,251 INFO L423 AbstractCegarLoop]: === Iteration 8 === [cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:43:28,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:28,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1130499361, now seen corresponding path program 1 times [2018-11-28 22:43:28,251 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:28,251 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:28,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:28,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:28,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:28,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:28,346 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:28,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 22:43:28,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 22:43:28,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 22:43:28,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:43:28,347 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 6 states. [2018-11-28 22:43:28,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:28,483 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2018-11-28 22:43:28,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 22:43:28,483 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-11-28 22:43:28,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:28,485 INFO L225 Difference]: With dead ends: 57 [2018-11-28 22:43:28,485 INFO L226 Difference]: Without dead ends: 57 [2018-11-28 22:43:28,485 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-28 22:43:28,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-11-28 22:43:28,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 49. [2018-11-28 22:43:28,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-28 22:43:28,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2018-11-28 22:43:28,491 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 18 [2018-11-28 22:43:28,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:28,492 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2018-11-28 22:43:28,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 22:43:28,492 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2018-11-28 22:43:28,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 22:43:28,493 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:28,493 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:28,493 INFO L423 AbstractCegarLoop]: === Iteration 9 === [cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:43:28,494 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:28,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1831563939, now seen corresponding path program 1 times [2018-11-28 22:43:28,494 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:28,494 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:28,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:28,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:28,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:28,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:28,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:28,736 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 22:43:28,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 22:43:28,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 22:43:28,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-11-28 22:43:28,738 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand 9 states. [2018-11-28 22:43:28,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:28,951 INFO L93 Difference]: Finished difference Result 85 states and 97 transitions. [2018-11-28 22:43:28,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 22:43:28,953 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-11-28 22:43:28,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:28,954 INFO L225 Difference]: With dead ends: 85 [2018-11-28 22:43:28,954 INFO L226 Difference]: Without dead ends: 85 [2018-11-28 22:43:28,956 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-11-28 22:43:28,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-11-28 22:43:28,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 65. [2018-11-28 22:43:28,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-28 22:43:28,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 77 transitions. [2018-11-28 22:43:28,973 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 77 transitions. Word has length 18 [2018-11-28 22:43:28,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:28,974 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 77 transitions. [2018-11-28 22:43:28,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 22:43:28,974 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 77 transitions. [2018-11-28 22:43:28,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 22:43:28,980 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:28,980 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:28,981 INFO L423 AbstractCegarLoop]: === Iteration 10 === [cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:43:28,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:28,981 INFO L82 PathProgramCache]: Analyzing trace with hash 2089729377, now seen corresponding path program 1 times [2018-11-28 22:43:28,981 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:28,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:28,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:28,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:28,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:29,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:29,321 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 22:43:29,321 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 22:43:29,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:29,401 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:43:29,457 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-28 22:43:29,462 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-11-28 22:43:29,463 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:29,474 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:43:29,494 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 22:43:29,494 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-11-28 22:43:29,873 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-28 22:43:29,993 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2018-11-28 22:43:29,994 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-28 22:43:30,043 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-28 22:43:30,093 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-28 22:43:30,093 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-11-28 22:43:30,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:30,187 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 22:43:30,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 15 [2018-11-28 22:43:30,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-28 22:43:30,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-28 22:43:30,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2018-11-28 22:43:30,190 INFO L87 Difference]: Start difference. First operand 65 states and 77 transitions. Second operand 16 states. [2018-11-28 22:43:31,036 WARN L180 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2018-11-28 22:43:31,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:31,303 INFO L93 Difference]: Finished difference Result 77 states and 92 transitions. [2018-11-28 22:43:31,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 22:43:31,304 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 18 [2018-11-28 22:43:31,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:31,308 INFO L225 Difference]: With dead ends: 77 [2018-11-28 22:43:31,308 INFO L226 Difference]: Without dead ends: 77 [2018-11-28 22:43:31,309 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2018-11-28 22:43:31,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-11-28 22:43:31,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 68. [2018-11-28 22:43:31,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-28 22:43:31,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 82 transitions. [2018-11-28 22:43:31,317 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 82 transitions. Word has length 18 [2018-11-28 22:43:31,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:31,317 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 82 transitions. [2018-11-28 22:43:31,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-28 22:43:31,318 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 82 transitions. [2018-11-28 22:43:31,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 22:43:31,318 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:31,319 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:31,319 INFO L423 AbstractCegarLoop]: === Iteration 11 === [cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:43:31,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:31,319 INFO L82 PathProgramCache]: Analyzing trace with hash 685189778, now seen corresponding path program 1 times [2018-11-28 22:43:31,319 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:31,319 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:31,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:31,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:31,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:31,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:31,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:31,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 22:43:31,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 22:43:31,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 22:43:31,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:43:31,432 INFO L87 Difference]: Start difference. First operand 68 states and 82 transitions. Second operand 6 states. [2018-11-28 22:43:31,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:31,600 INFO L93 Difference]: Finished difference Result 73 states and 85 transitions. [2018-11-28 22:43:31,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 22:43:31,602 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-28 22:43:31,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:31,604 INFO L225 Difference]: With dead ends: 73 [2018-11-28 22:43:31,604 INFO L226 Difference]: Without dead ends: 73 [2018-11-28 22:43:31,604 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-28 22:43:31,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-28 22:43:31,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 67. [2018-11-28 22:43:31,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-28 22:43:31,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 79 transitions. [2018-11-28 22:43:31,612 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 79 transitions. Word has length 19 [2018-11-28 22:43:31,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:31,612 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 79 transitions. [2018-11-28 22:43:31,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 22:43:31,613 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 79 transitions. [2018-11-28 22:43:31,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 22:43:31,613 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:31,614 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:31,614 INFO L423 AbstractCegarLoop]: === Iteration 12 === [cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:43:31,614 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:31,614 INFO L82 PathProgramCache]: Analyzing trace with hash 685189779, now seen corresponding path program 1 times [2018-11-28 22:43:31,614 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:31,614 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:31,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:31,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:31,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:31,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:31,778 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:31,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 22:43:31,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 22:43:31,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 22:43:31,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 22:43:31,780 INFO L87 Difference]: Start difference. First operand 67 states and 79 transitions. Second operand 8 states. [2018-11-28 22:43:31,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:31,916 INFO L93 Difference]: Finished difference Result 81 states and 90 transitions. [2018-11-28 22:43:31,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 22:43:31,917 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-11-28 22:43:31,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:31,919 INFO L225 Difference]: With dead ends: 81 [2018-11-28 22:43:31,919 INFO L226 Difference]: Without dead ends: 81 [2018-11-28 22:43:31,919 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-11-28 22:43:31,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-11-28 22:43:31,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2018-11-28 22:43:31,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-11-28 22:43:31,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2018-11-28 22:43:31,927 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 19 [2018-11-28 22:43:31,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:31,927 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2018-11-28 22:43:31,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 22:43:31,927 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2018-11-28 22:43:31,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 22:43:31,928 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:31,928 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:31,928 INFO L423 AbstractCegarLoop]: === Iteration 13 === [cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:43:31,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:31,929 INFO L82 PathProgramCache]: Analyzing trace with hash 943355217, now seen corresponding path program 1 times [2018-11-28 22:43:31,929 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:31,929 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:31,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:31,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:31,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:32,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:32,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:32,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 22:43:32,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 22:43:32,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 22:43:32,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-11-28 22:43:32,236 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand 12 states. [2018-11-28 22:43:32,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:32,723 INFO L93 Difference]: Finished difference Result 89 states and 100 transitions. [2018-11-28 22:43:32,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 22:43:32,724 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 19 [2018-11-28 22:43:32,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:32,726 INFO L225 Difference]: With dead ends: 89 [2018-11-28 22:43:32,726 INFO L226 Difference]: Without dead ends: 89 [2018-11-28 22:43:32,727 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2018-11-28 22:43:32,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-11-28 22:43:32,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 84. [2018-11-28 22:43:32,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-11-28 22:43:32,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 96 transitions. [2018-11-28 22:43:32,732 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 96 transitions. Word has length 19 [2018-11-28 22:43:32,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:32,733 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 96 transitions. [2018-11-28 22:43:32,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 22:43:32,733 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 96 transitions. [2018-11-28 22:43:32,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 22:43:32,734 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:32,734 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:32,734 INFO L423 AbstractCegarLoop]: === Iteration 14 === [cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:43:32,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:32,734 INFO L82 PathProgramCache]: Analyzing trace with hash 357101204, now seen corresponding path program 1 times [2018-11-28 22:43:32,735 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:32,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:32,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:32,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:32,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:32,904 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:32,905 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 22:43:32,905 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 22:43:32,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:32,966 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:43:33,015 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-28 22:43:33,016 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:33,028 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-28 22:43:33,036 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-28 22:43:33,037 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:33,048 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:43:33,054 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:43:33,054 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:21, output treesize:9 [2018-11-28 22:43:33,323 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:33,351 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 22:43:33,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2018-11-28 22:43:33,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-28 22:43:33,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-28 22:43:33,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-28 22:43:33,353 INFO L87 Difference]: Start difference. First operand 84 states and 96 transitions. Second operand 14 states. [2018-11-28 22:43:33,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:33,800 INFO L93 Difference]: Finished difference Result 96 states and 111 transitions. [2018-11-28 22:43:33,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 22:43:33,801 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 19 [2018-11-28 22:43:33,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:33,802 INFO L225 Difference]: With dead ends: 96 [2018-11-28 22:43:33,802 INFO L226 Difference]: Without dead ends: 96 [2018-11-28 22:43:33,803 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2018-11-28 22:43:33,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-11-28 22:43:33,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 83. [2018-11-28 22:43:33,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-11-28 22:43:33,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 95 transitions. [2018-11-28 22:43:33,811 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 95 transitions. Word has length 19 [2018-11-28 22:43:33,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:33,811 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 95 transitions. [2018-11-28 22:43:33,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-28 22:43:33,811 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 95 transitions. [2018-11-28 22:43:33,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 22:43:33,812 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:33,813 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:33,813 INFO L423 AbstractCegarLoop]: === Iteration 15 === [cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:43:33,813 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:33,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1020088252, now seen corresponding path program 1 times [2018-11-28 22:43:33,813 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:33,813 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:33,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:33,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:33,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:33,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 22:43:33,964 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:33,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 22:43:33,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 22:43:33,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 22:43:33,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 22:43:33,966 INFO L87 Difference]: Start difference. First operand 83 states and 95 transitions. Second operand 4 states. [2018-11-28 22:43:34,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:34,025 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2018-11-28 22:43:34,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 22:43:34,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-11-28 22:43:34,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:34,027 INFO L225 Difference]: With dead ends: 82 [2018-11-28 22:43:34,027 INFO L226 Difference]: Without dead ends: 47 [2018-11-28 22:43:34,029 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 22:43:34,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-28 22:43:34,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 40. [2018-11-28 22:43:34,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-28 22:43:34,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-11-28 22:43:34,032 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 22 [2018-11-28 22:43:34,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:34,032 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-11-28 22:43:34,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 22:43:34,032 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-11-28 22:43:34,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 22:43:34,033 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:34,033 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:34,034 INFO L423 AbstractCegarLoop]: === Iteration 16 === [cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:43:34,034 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:34,034 INFO L82 PathProgramCache]: Analyzing trace with hash -232043590, now seen corresponding path program 2 times [2018-11-28 22:43:34,034 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:34,034 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:34,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:34,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:34,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:34,621 WARN L180 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2018-11-28 22:43:34,901 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 22 [2018-11-28 22:43:35,197 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:35,197 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 22:43:35,197 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 22:43:35,209 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 22:43:35,237 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 22:43:35,237 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 22:43:35,242 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:43:35,260 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-28 22:43:35,261 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:35,274 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-28 22:43:35,280 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-28 22:43:35,281 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:35,294 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:43:35,304 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:43:35,304 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:21, output treesize:13 [2018-11-28 22:43:35,369 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-28 22:43:35,377 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-11-28 22:43:35,377 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:35,379 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:43:35,387 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 22:43:35,387 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-11-28 22:43:35,643 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-28 22:43:35,647 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-28 22:43:35,647 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:35,652 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:43:35,667 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 22:43:35,668 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:37, output treesize:22 [2018-11-28 22:43:35,773 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-11-28 22:43:35,783 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 15 [2018-11-28 22:43:35,784 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-28 22:43:35,788 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-28 22:43:35,837 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-28 22:43:35,838 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:37 [2018-11-28 22:43:35,906 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:35,925 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 22:43:35,925 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2018-11-28 22:43:35,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-28 22:43:35,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-28 22:43:35,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2018-11-28 22:43:35,927 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 22 states. [2018-11-28 22:43:37,259 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2018-11-28 22:43:37,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:37,419 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2018-11-28 22:43:37,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 22:43:37,420 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 22 [2018-11-28 22:43:37,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:37,421 INFO L225 Difference]: With dead ends: 49 [2018-11-28 22:43:37,421 INFO L226 Difference]: Without dead ends: 49 [2018-11-28 22:43:37,423 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=158, Invalid=1032, Unknown=0, NotChecked=0, Total=1190 [2018-11-28 22:43:37,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-28 22:43:37,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 33. [2018-11-28 22:43:37,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 22:43:37,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-11-28 22:43:37,425 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 22 [2018-11-28 22:43:37,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:37,425 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-11-28 22:43:37,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-28 22:43:37,426 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-11-28 22:43:37,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 22:43:37,426 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:37,426 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:37,427 INFO L423 AbstractCegarLoop]: === Iteration 17 === [cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:43:37,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:37,427 INFO L82 PathProgramCache]: Analyzing trace with hash 6421641, now seen corresponding path program 1 times [2018-11-28 22:43:37,427 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:37,427 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:37,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:37,428 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 22:43:37,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:37,700 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:37,700 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 22:43:37,700 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 22:43:37,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:37,748 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:43:37,859 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-28 22:43:37,870 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-28 22:43:37,871 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:37,944 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-28 22:43:37,949 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-28 22:43:37,950 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:37,957 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:43:37,965 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:43:37,966 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:21, output treesize:9 [2018-11-28 22:43:38,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:38,339 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 22:43:38,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 22 [2018-11-28 22:43:38,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-28 22:43:38,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-28 22:43:38,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2018-11-28 22:43:38,340 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 23 states. [2018-11-28 22:43:40,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:40,183 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2018-11-28 22:43:40,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-28 22:43:40,192 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 23 [2018-11-28 22:43:40,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:40,192 INFO L225 Difference]: With dead ends: 50 [2018-11-28 22:43:40,192 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 22:43:40,194 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=275, Invalid=1531, Unknown=0, NotChecked=0, Total=1806 [2018-11-28 22:43:40,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 22:43:40,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 22:43:40,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 22:43:40,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 22:43:40,194 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-11-28 22:43:40,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:40,195 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 22:43:40,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-28 22:43:40,195 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 22:43:40,195 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 22:43:40,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:43:40 BoogieIcfgContainer [2018-11-28 22:43:40,202 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 22:43:40,203 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 22:43:40,203 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 22:43:40,203 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 22:43:40,203 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:43:25" (3/4) ... [2018-11-28 22:43:40,208 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 22:43:40,216 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cstrncpy [2018-11-28 22:43:40,216 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 22:43:40,217 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2018-11-28 22:43:40,217 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2018-11-28 22:43:40,217 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 22:43:40,224 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-11-28 22:43:40,224 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-28 22:43:40,225 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 22:43:40,310 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 22:43:40,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 22:43:40,311 INFO L168 Benchmark]: Toolchain (without parser) took 16530.86 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 323.5 MB). Free memory was 947.3 MB in the beginning and 848.8 MB in the end (delta: 98.5 MB). Peak memory consumption was 422.0 MB. Max. memory is 11.5 GB. [2018-11-28 22:43:40,321 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:43:40,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.24 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 924.5 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2018-11-28 22:43:40,322 INFO L168 Benchmark]: Boogie Preprocessor took 150.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 924.5 MB in the beginning and 1.1 GB in the end (delta: -202.5 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2018-11-28 22:43:40,322 INFO L168 Benchmark]: RCFGBuilder took 824.88 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: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. [2018-11-28 22:43:40,323 INFO L168 Benchmark]: TraceAbstraction took 14881.27 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 182.5 MB). Free memory was 1.1 GB in the beginning and 858.2 MB in the end (delta: 229.9 MB). Peak memory consumption was 412.4 MB. Max. memory is 11.5 GB. [2018-11-28 22:43:40,325 INFO L168 Benchmark]: Witness Printer took 107.75 ms. Allocated memory is still 1.4 GB. Free memory was 858.2 MB in the beginning and 848.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 11.5 GB. [2018-11-28 22:43:40,331 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 561.24 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 924.5 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 150.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 924.5 MB in the beginning and 1.1 GB in the end (delta: -202.5 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 824.88 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: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14881.27 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 182.5 MB). Free memory was 1.1 GB in the beginning and 858.2 MB in the end (delta: 229.9 MB). Peak memory consumption was 412.4 MB. Max. memory is 11.5 GB. * Witness Printer took 107.75 ms. Allocated memory is still 1.4 GB. Free memory was 858.2 MB in the beginning and 848.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 569]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 558]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 569]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 43 locations, 9 error locations. SAFE Result, 14.8s OverallTime, 17 OverallIterations, 3 TraceHistogramMax, 7.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 430 SDtfs, 547 SDslu, 1849 SDs, 0 SdLazy, 1516 SolverSat, 167 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 269 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=13, 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: 0.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 99 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 375 NumberOfCodeBlocks, 375 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 354 ConstructedInterpolants, 12 QuantifiedInterpolants, 48716 SizeOfPredicates, 57 NumberOfNonLiveVariables, 631 ConjunctsInSsa, 173 ConjunctsInUnsatCore, 21 InterpolantComputations, 13 PerfectInterpolantSequences, 5/37 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...