./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/list-ext3-properties/sll_shallow_copy_true-valid-memsafety.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/list-ext3-properties/sll_shallow_copy_true-valid-memsafety.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 86b203c3a804c103d90401bd32cfcff28939b920 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 23:00:39,787 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:00:39,789 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:00:39,804 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:00:39,805 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:00:39,806 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:00:39,807 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:00:39,812 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:00:39,815 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:00:39,818 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:00:39,819 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:00:39,819 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:00:39,820 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:00:39,821 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:00:39,822 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:00:39,823 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:00:39,824 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:00:39,826 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:00:39,828 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:00:39,830 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:00:39,831 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:00:39,833 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:00:39,835 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:00:39,836 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:00:39,836 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:00:39,837 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:00:39,839 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:00:39,839 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:00:39,840 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:00:39,842 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:00:39,842 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:00:39,842 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:00:39,843 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:00:39,843 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:00:39,844 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:00:39,845 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:00:39,845 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 23:00:39,867 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:00:39,868 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:00:39,869 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:00:39,870 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:00:39,870 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:00:39,870 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:00:39,871 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:00:39,871 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:00:39,871 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:00:39,871 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:00:39,871 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:00:39,872 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:00:39,873 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:00:39,873 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 23:00:39,873 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 23:00:39,873 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 23:00:39,873 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:00:39,874 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:00:39,875 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:00:39,875 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:00:39,875 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:00:39,875 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:00:39,875 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:00:39,876 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:00:39,877 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:00:39,877 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:00:39,877 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:00:39,877 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:00:39,878 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 -> 86b203c3a804c103d90401bd32cfcff28939b920 [2018-11-28 23:00:39,917 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:00:39,931 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:00:39,938 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:00:39,940 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:00:39,941 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:00:39,941 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/list-ext3-properties/sll_shallow_copy_true-valid-memsafety.i [2018-11-28 23:00:40,009 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6401074d0/daf21dab198747c995dd294496712569/FLAG84c25144c [2018-11-28 23:00:40,569 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:00:40,570 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/list-ext3-properties/sll_shallow_copy_true-valid-memsafety.i [2018-11-28 23:00:40,591 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6401074d0/daf21dab198747c995dd294496712569/FLAG84c25144c [2018-11-28 23:00:40,816 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6401074d0/daf21dab198747c995dd294496712569 [2018-11-28 23:00:40,821 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:00:40,823 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 23:00:40,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:00:40,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:00:40,829 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:00:40,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:00:40" (1/1) ... [2018-11-28 23:00:40,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fbbf543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:00:40, skipping insertion in model container [2018-11-28 23:00:40,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:00:40" (1/1) ... [2018-11-28 23:00:40,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:00:40,889 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:00:41,291 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:00:41,311 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:00:41,387 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:00:41,516 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:00:41,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:00:41 WrapperNode [2018-11-28 23:00:41,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:00:41,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:00:41,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:00:41,518 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:00:41,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:00:41" (1/1) ... [2018-11-28 23:00:41,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:00:41" (1/1) ... [2018-11-28 23:00:41,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:00:41" (1/1) ... [2018-11-28 23:00:41,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:00:41" (1/1) ... [2018-11-28 23:00:41,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:00:41" (1/1) ... [2018-11-28 23:00:41,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:00:41" (1/1) ... [2018-11-28 23:00:41,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:00:41" (1/1) ... [2018-11-28 23:00:41,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:00:41,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:00:41,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:00:41,596 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:00:41,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:00:41" (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 23:00:41,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:00:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:00:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-28 23:00:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-28 23:00:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2018-11-28 23:00:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_node [2018-11-28 23:00:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:00:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-28 23:00:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-28 23:00:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 23:00:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 23:00:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 23:00:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 23:00:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 23:00:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 23:00:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 23:00:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 23:00:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 23:00:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 23:00:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 23:00:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 23:00:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 23:00:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 23:00:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 23:00:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 23:00:41,671 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 23:00:41,671 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 23:00:41,671 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 23:00:41,671 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 23:00:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 23:00:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 23:00:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 23:00:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 23:00:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 23:00:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 23:00:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 23:00:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 23:00:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 23:00:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 23:00:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 23:00:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 23:00:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 23:00:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 23:00:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 23:00:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 23:00:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 23:00:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 23:00:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 23:00:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 23:00:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 23:00:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 23:00:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 23:00:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 23:00:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 23:00:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 23:00:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 23:00:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 23:00:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 23:00:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 23:00:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 23:00:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 23:00:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 23:00:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 23:00:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 23:00:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 23:00:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 23:00:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 23:00:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-28 23:00:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 23:00:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 23:00:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-28 23:00:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 23:00:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 23:00:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-28 23:00:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 23:00:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 23:00:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 23:00:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 23:00:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 23:00:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 23:00:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 23:00:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 23:00:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 23:00:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 23:00:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 23:00:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 23:00:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 23:00:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 23:00:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 23:00:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 23:00:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 23:00:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 23:00:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 23:00:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 23:00:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 23:00:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 23:00:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 23:00:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 23:00:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 23:00:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 23:00:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 23:00:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 23:00:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 23:00:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 23:00:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 23:00:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 23:00:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 23:00:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 23:00:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 23:00:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 23:00:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 23:00:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 23:00:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2018-11-28 23:00:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_node [2018-11-28 23:00:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 23:00:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:00:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 23:00:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 23:00:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 23:00:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:00:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:00:42,362 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:00:42,362 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 23:00:42,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:00:42 BoogieIcfgContainer [2018-11-28 23:00:42,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:00:42,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:00:42,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:00:42,368 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:00:42,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:00:40" (1/3) ... [2018-11-28 23:00:42,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75be86c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:00:42, skipping insertion in model container [2018-11-28 23:00:42,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:00:41" (2/3) ... [2018-11-28 23:00:42,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75be86c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:00:42, skipping insertion in model container [2018-11-28 23:00:42,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:00:42" (3/3) ... [2018-11-28 23:00:42,373 INFO L112 eAbstractionObserver]: Analyzing ICFG sll_shallow_copy_true-valid-memsafety.i [2018-11-28 23:00:42,383 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:00:42,392 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-11-28 23:00:42,410 INFO L257 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2018-11-28 23:00:42,438 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:00:42,439 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:00:42,439 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 23:00:42,439 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:00:42,441 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:00:42,441 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:00:42,441 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:00:42,441 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:00:42,441 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:00:42,459 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-11-28 23:00:42,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 23:00:42,470 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:00:42,471 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:00:42,474 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 23:00:42,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:00:42,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1772212062, now seen corresponding path program 1 times [2018-11-28 23:00:42,483 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:00:42,484 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:00:42,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:00:42,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:00:42,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:00:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:00:43,014 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:00:43,017 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:00:43,017 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 23:00:43,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:00:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:00:43,083 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:00:43,156 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 6 treesize of output 5 [2018-11-28 23:00:43,159 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 23:00:43,184 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 23:00:43,184 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-28 23:00:43,262 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 23:00:43,264 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 23:00:43,267 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-28 23:00:43,269 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 23:00:43,324 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 23:00:43,325 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2018-11-28 23:00:43,404 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:00:43,433 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:00:43,433 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 9 [2018-11-28 23:00:43,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 23:00:43,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 23:00:43,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-28 23:00:43,454 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 10 states. [2018-11-28 23:00:45,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:00:45,142 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2018-11-28 23:00:45,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 23:00:45,145 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2018-11-28 23:00:45,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:00:45,154 INFO L225 Difference]: With dead ends: 39 [2018-11-28 23:00:45,154 INFO L226 Difference]: Without dead ends: 33 [2018-11-28 23:00:45,156 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2018-11-28 23:00:45,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-28 23:00:45,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-28 23:00:45,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 23:00:45,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2018-11-28 23:00:45,205 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 19 [2018-11-28 23:00:45,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:00:45,207 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2018-11-28 23:00:45,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 23:00:45,207 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2018-11-28 23:00:45,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 23:00:45,209 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:00:45,209 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:00:45,209 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 23:00:45,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:00:45,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1772212063, now seen corresponding path program 1 times [2018-11-28 23:00:45,210 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:00:45,210 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:00:45,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:00:45,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:00:45,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:00:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:00:45,647 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-28 23:00:45,687 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:00:45,688 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:00:45,688 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 23:00:45,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:00:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:00:45,738 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:00:45,744 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 6 treesize of output 5 [2018-11-28 23:00:45,745 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 23:00:45,759 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 6 treesize of output 5 [2018-11-28 23:00:45,760 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 23:00:45,771 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 23:00:45,771 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 23:00:45,881 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 23:00:45,882 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 23:00:45,883 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-28 23:00:45,884 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 23:00:45,906 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 23:00:45,907 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 23:00:45,923 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 23:00:45,923 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:18 [2018-11-28 23:00:45,960 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:00:45,979 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:00:45,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2018-11-28 23:00:45,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 23:00:45,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 23:00:45,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-11-28 23:00:45,981 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand 11 states. [2018-11-28 23:00:46,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:00:46,939 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-11-28 23:00:46,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 23:00:46,940 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2018-11-28 23:00:46,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:00:46,941 INFO L225 Difference]: With dead ends: 28 [2018-11-28 23:00:46,942 INFO L226 Difference]: Without dead ends: 28 [2018-11-28 23:00:46,943 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2018-11-28 23:00:46,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-28 23:00:46,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-28 23:00:46,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-28 23:00:46,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-11-28 23:00:46,948 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 19 [2018-11-28 23:00:46,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:00:46,949 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-11-28 23:00:46,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 23:00:46,949 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-11-28 23:00:46,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-28 23:00:46,950 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:00:46,950 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:00:46,951 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 23:00:46,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:00:46,951 INFO L82 PathProgramCache]: Analyzing trace with hash 985944547, now seen corresponding path program 1 times [2018-11-28 23:00:46,951 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:00:46,951 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:00:46,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:00:46,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:00:46,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:00:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:00:47,101 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 23:00:47,101 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:00:47,101 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 23:00:47,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 23:00:47,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 23:00:47,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 23:00:47,103 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 9 states. [2018-11-28 23:00:47,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:00:47,252 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-11-28 23:00:47,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 23:00:47,255 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-11-28 23:00:47,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:00:47,256 INFO L225 Difference]: With dead ends: 27 [2018-11-28 23:00:47,256 INFO L226 Difference]: Without dead ends: 27 [2018-11-28 23:00:47,257 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2018-11-28 23:00:47,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-28 23:00:47,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-28 23:00:47,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-28 23:00:47,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-11-28 23:00:47,263 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 28 [2018-11-28 23:00:47,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:00:47,264 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-11-28 23:00:47,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 23:00:47,264 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-11-28 23:00:47,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-28 23:00:47,265 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:00:47,265 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:00:47,266 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 23:00:47,266 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:00:47,266 INFO L82 PathProgramCache]: Analyzing trace with hash 499509959, now seen corresponding path program 1 times [2018-11-28 23:00:47,266 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:00:47,266 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:00:47,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:00:47,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:00:47,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:00:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:00:47,609 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:00:47,609 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:00:47,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-28 23:00:47,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-28 23:00:47,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-28 23:00:47,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2018-11-28 23:00:47,611 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 15 states. [2018-11-28 23:00:47,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:00:47,946 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-11-28 23:00:47,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-28 23:00:47,947 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 29 [2018-11-28 23:00:47,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:00:47,950 INFO L225 Difference]: With dead ends: 26 [2018-11-28 23:00:47,950 INFO L226 Difference]: Without dead ends: 26 [2018-11-28 23:00:47,951 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2018-11-28 23:00:47,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-28 23:00:47,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-28 23:00:47,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-28 23:00:47,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-11-28 23:00:47,955 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 29 [2018-11-28 23:00:47,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:00:47,956 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-11-28 23:00:47,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-28 23:00:47,956 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-11-28 23:00:47,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-28 23:00:47,957 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:00:47,958 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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 23:00:47,958 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 23:00:47,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:00:47,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1695060378, now seen corresponding path program 1 times [2018-11-28 23:00:47,958 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:00:47,959 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:00:47,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:00:47,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:00:47,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:00:47,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:00:48,346 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 10 [2018-11-28 23:00:49,011 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 23:00:49,012 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:00:49,012 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 23:00:49,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:00:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:00:49,061 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:00:49,159 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 23:00:49,167 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 23:00:49,168 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:23 [2018-11-28 23:00:49,217 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 11 treesize of output 8 [2018-11-28 23:00:49,220 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 23:00:49,220 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 23:00:49,223 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 23:00:49,232 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 23:00:49,233 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:35 [2018-11-28 23:00:49,333 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 50 treesize of output 39 [2018-11-28 23:00:49,351 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 39 treesize of output 30 [2018-11-28 23:00:49,351 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 23:00:49,363 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 23:00:49,375 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 23:00:49,376 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:50, output treesize:35 [2018-11-28 23:00:49,382 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 42 treesize of output 34 [2018-11-28 23:00:49,385 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 34 treesize of output 23 [2018-11-28 23:00:49,386 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 23:00:49,394 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 23:00:49,403 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 23:00:49,404 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:23 [2018-11-28 23:00:49,499 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 23:00:49,500 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 37 [2018-11-28 23:00:49,515 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-28 23:00:49,516 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 23:00:49,524 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 23:00:49,539 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 23:00:49,540 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2018-11-28 23:00:49,603 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 23:00:49,608 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 23:00:49,609 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-28 23:00:49,609 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 23:00:49,622 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 23:00:49,623 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:27, output treesize:25 [2018-11-28 23:00:49,655 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-28 23:00:49,674 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 23:00:49,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [14] total 21 [2018-11-28 23:00:49,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-28 23:00:49,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-28 23:00:49,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2018-11-28 23:00:49,676 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 22 states. [2018-11-28 23:00:50,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:00:50,492 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-11-28 23:00:50,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 23:00:50,492 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 30 [2018-11-28 23:00:50,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:00:50,493 INFO L225 Difference]: With dead ends: 25 [2018-11-28 23:00:50,493 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 23:00:50,494 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 22 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=87, Invalid=669, Unknown=0, NotChecked=0, Total=756 [2018-11-28 23:00:50,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 23:00:50,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 23:00:50,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 23:00:50,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:00:50,495 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2018-11-28 23:00:50,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:00:50,495 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:00:50,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-28 23:00:50,495 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:00:50,495 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 23:00:50,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:00:50 BoogieIcfgContainer [2018-11-28 23:00:50,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:00:50,502 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:00:50,502 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:00:50,502 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:00:50,503 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:00:42" (3/4) ... [2018-11-28 23:00:50,506 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 23:00:50,512 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 23:00:50,512 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2018-11-28 23:00:50,512 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2018-11-28 23:00:50,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2018-11-28 23:00:50,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 23:00:50,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure alloc_node [2018-11-28 23:00:50,518 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-28 23:00:50,518 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 23:00:50,518 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 23:00:50,564 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:00:50,564 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:00:50,565 INFO L168 Benchmark]: Toolchain (without parser) took 9743.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 212.9 MB). Free memory was 943.3 MB in the beginning and 1.0 GB in the end (delta: -87.3 MB). Peak memory consumption was 125.6 MB. Max. memory is 11.5 GB. [2018-11-28 23:00:50,567 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 23:00:50,567 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -204.6 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-28 23:00:50,568 INFO L168 Benchmark]: Boogie Preprocessor took 77.02 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-28 23:00:50,568 INFO L168 Benchmark]: RCFGBuilder took 767.71 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: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:00:50,570 INFO L168 Benchmark]: TraceAbstraction took 8137.26 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.5 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.0 MB). Peak memory consumption was 125.4 MB. Max. memory is 11.5 GB. [2018-11-28 23:00:50,571 INFO L168 Benchmark]: Witness Printer took 62.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:00:50,575 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 692.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -204.6 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 77.02 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 767.71 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: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8137.26 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.5 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.0 MB). Peak memory consumption was 125.4 MB. Max. memory is 11.5 GB. * Witness Printer took 62.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 568]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 572]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 572]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 52 locations, 13 error locations. SAFE Result, 8.0s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 3.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 76 SDtfs, 101 SDslu, 388 SDs, 0 SdLazy, 831 SolverSat, 49 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 54 SyntacticMatches, 14 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 193 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 185 ConstructedInterpolants, 13 QuantifiedInterpolants, 45561 SizeOfPredicates, 18 NumberOfNonLiveVariables, 302 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 20/40 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...