./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/array-memsafety/mult_array-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/mult_array-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 f9c03ff796f05925e62ae0f4fb320e42fa8b7c37 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:43:37,403 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 22:43:37,405 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 22:43:37,421 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 22:43:37,423 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 22:43:37,424 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 22:43:37,428 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 22:43:37,431 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 22:43:37,437 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 22:43:37,438 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 22:43:37,441 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 22:43:37,441 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 22:43:37,443 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 22:43:37,444 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 22:43:37,445 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 22:43:37,446 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 22:43:37,447 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 22:43:37,449 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 22:43:37,452 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 22:43:37,453 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 22:43:37,454 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 22:43:37,459 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 22:43:37,461 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 22:43:37,462 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 22:43:37,462 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 22:43:37,468 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 22:43:37,469 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 22:43:37,470 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 22:43:37,472 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 22:43:37,473 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 22:43:37,474 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 22:43:37,474 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 22:43:37,475 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 22:43:37,475 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 22:43:37,477 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 22:43:37,478 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 22:43:37,478 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 22:43:37,493 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 22:43:37,493 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 22:43:37,494 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 22:43:37,494 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 22:43:37,495 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 22:43:37,496 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 22:43:37,496 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 22:43:37,496 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 22:43:37,496 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 22:43:37,496 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 22:43:37,497 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 22:43:37,497 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 22:43:37,497 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 22:43:37,497 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 22:43:37,497 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 22:43:37,498 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 22:43:37,499 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 22:43:37,499 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 22:43:37,499 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 22:43:37,499 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 22:43:37,500 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 22:43:37,500 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 22:43:37,500 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 22:43:37,500 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:43:37,500 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 22:43:37,502 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 22:43:37,502 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 22:43:37,502 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 22:43:37,502 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 -> f9c03ff796f05925e62ae0f4fb320e42fa8b7c37 [2018-11-28 22:43:37,544 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 22:43:37,560 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 22:43:37,566 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 22:43:37,567 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 22:43:37,567 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 22:43:37,569 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-memsafety/mult_array-alloca_true-valid-memsafety_true-termination.i [2018-11-28 22:43:37,645 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74f35da83/604f4e6295b8489ba1553a531426f8b3/FLAG027187c95 [2018-11-28 22:43:38,107 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 22:43:38,108 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/array-memsafety/mult_array-alloca_true-valid-memsafety_true-termination.i [2018-11-28 22:43:38,127 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74f35da83/604f4e6295b8489ba1553a531426f8b3/FLAG027187c95 [2018-11-28 22:43:38,430 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74f35da83/604f4e6295b8489ba1553a531426f8b3 [2018-11-28 22:43:38,434 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 22:43:38,436 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 22:43:38,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 22:43:38,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 22:43:38,441 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 22:43:38,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:43:38" (1/1) ... [2018-11-28 22:43:38,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@163c2f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:38, skipping insertion in model container [2018-11-28 22:43:38,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:43:38" (1/1) ... [2018-11-28 22:43:38,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 22:43:38,499 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 22:43:38,840 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:43:38,855 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 22:43:38,899 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:43:38,963 INFO L195 MainTranslator]: Completed translation [2018-11-28 22:43:38,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:38 WrapperNode [2018-11-28 22:43:38,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 22:43:38,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 22:43:38,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 22:43:38,966 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 22:43:39,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:38" (1/1) ... [2018-11-28 22:43:39,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:38" (1/1) ... [2018-11-28 22:43:39,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:38" (1/1) ... [2018-11-28 22:43:39,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:38" (1/1) ... [2018-11-28 22:43:39,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:38" (1/1) ... [2018-11-28 22:43:39,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:38" (1/1) ... [2018-11-28 22:43:39,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:38" (1/1) ... [2018-11-28 22:43:39,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 22:43:39,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 22:43:39,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 22:43:39,101 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 22:43:39,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:38" (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 22:43:39,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 22:43:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 22:43:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-28 22:43:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-28 22:43:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 22:43:39,160 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-28 22:43:39,160 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-28 22:43:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 22:43:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 22:43:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 22:43:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 22:43:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 22:43:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 22:43:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 22:43:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 22:43:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 22:43:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 22:43:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 22:43:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 22:43:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 22:43:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 22:43:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 22:43:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 22:43:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 22:43:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 22:43:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 22:43:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 22:43:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 22:43:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 22:43:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 22:43:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 22:43:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 22:43:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 22:43:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 22:43:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 22:43:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 22:43:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 22:43:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 22:43:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 22:43:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 22:43:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 22:43:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 22:43:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 22:43:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 22:43:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 22:43:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 22:43:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 22:43:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 22:43:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 22:43:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 22:43:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 22:43:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 22:43:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 22:43:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 22:43:39,170 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 22:43:39,170 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 22:43:39,170 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 22:43:39,170 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 22:43:39,170 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 22:43:39,170 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 22:43:39,171 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 22:43:39,171 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 22:43:39,172 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 22:43:39,172 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 22:43:39,172 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 22:43:39,172 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 22:43:39,172 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 22:43:39,172 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 22:43:39,173 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 22:43:39,173 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 22:43:39,173 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 22:43:39,173 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 22:43:39,173 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 22:43:39,173 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 22:43:39,173 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 22:43:39,173 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 22:43:39,176 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 22:43:39,176 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 22:43:39,176 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 22:43:39,176 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 22:43:39,176 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 22:43:39,176 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 22:43:39,177 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 22:43:39,178 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 22:43:39,179 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 22:43:39,179 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 22:43:39,179 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 22:43:39,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 22:43:39,179 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 22:43:39,179 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 22:43:39,179 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 22:43:39,179 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 22:43:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 22:43:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 22:43:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 22:43:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 22:43:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 22:43:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 22:43:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 22:43:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 22:43:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 22:43:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 22:43:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 22:43:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 22:43:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 22:43:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 22:43:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 22:43:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 22:43:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 22:43:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 22:43:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 22:43:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 22:43:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 22:43:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 22:43:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 22:43:39,846 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 22:43:39,846 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 22:43:39,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:43:39 BoogieIcfgContainer [2018-11-28 22:43:39,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 22:43:39,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 22:43:39,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 22:43:39,851 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 22:43:39,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:43:38" (1/3) ... [2018-11-28 22:43:39,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3769d117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:43:39, skipping insertion in model container [2018-11-28 22:43:39,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:43:38" (2/3) ... [2018-11-28 22:43:39,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3769d117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:43:39, skipping insertion in model container [2018-11-28 22:43:39,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:43:39" (3/3) ... [2018-11-28 22:43:39,854 INFO L112 eAbstractionObserver]: Analyzing ICFG mult_array-alloca_true-valid-memsafety_true-termination.i [2018-11-28 22:43:39,864 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 22:43:39,872 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-11-28 22:43:39,888 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-11-28 22:43:39,914 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 22:43:39,915 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 22:43:39,915 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 22:43:39,915 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 22:43:39,916 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 22:43:39,916 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 22:43:39,917 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 22:43:39,917 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 22:43:39,917 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 22:43:39,939 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-11-28 22:43:39,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 22:43:39,949 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:39,950 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:39,952 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 22:43:39,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:39,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1113687630, now seen corresponding path program 1 times [2018-11-28 22:43:39,960 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:39,961 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:40,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:40,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:40,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:40,053 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 22:43:40,053 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 22:43:40,053 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 22:43:40,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:40,098 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:43:40,191 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 22:43:40,225 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:40,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 22:43:40,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:43:40,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:43:40,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:43:40,250 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2018-11-28 22:43:40,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:40,429 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2018-11-28 22:43:40,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:43:40,432 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-28 22:43:40,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:40,444 INFO L225 Difference]: With dead ends: 33 [2018-11-28 22:43:40,444 INFO L226 Difference]: Without dead ends: 30 [2018-11-28 22:43:40,448 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 22:43:40,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-28 22:43:40,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-11-28 22:43:40,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-28 22:43:40,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2018-11-28 22:43:40,497 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 12 [2018-11-28 22:43:40,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:40,498 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2018-11-28 22:43:40,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:43:40,498 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2018-11-28 22:43:40,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 22:43:40,499 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:40,499 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:40,500 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 22:43:40,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:40,500 INFO L82 PathProgramCache]: Analyzing trace with hash 164578132, now seen corresponding path program 1 times [2018-11-28 22:43:40,500 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:40,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:40,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:40,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:40,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:40,514 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 22:43:40,514 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 22:43:40,514 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 22:43:40,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:40,568 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:43:40,678 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:43:40,683 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-28 22:43:40,689 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 22:43:40,690 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:40,701 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:43:40,760 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 22:43:40,761 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2018-11-28 22:43:40,787 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 22:43:40,807 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:40,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:43:40,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:43:40,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:43:40,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:43:40,810 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 3 states. [2018-11-28 22:43:40,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:40,875 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2018-11-28 22:43:40,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:43:40,876 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-28 22:43:40,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:40,877 INFO L225 Difference]: With dead ends: 28 [2018-11-28 22:43:40,877 INFO L226 Difference]: Without dead ends: 28 [2018-11-28 22:43:40,878 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 22:43:40,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-28 22:43:40,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-28 22:43:40,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-28 22:43:40,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2018-11-28 22:43:40,883 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 13 [2018-11-28 22:43:40,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:40,883 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2018-11-28 22:43:40,884 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:43:40,884 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2018-11-28 22:43:40,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 22:43:40,884 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:40,885 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:40,885 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 22:43:40,885 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:40,885 INFO L82 PathProgramCache]: Analyzing trace with hash 164578133, now seen corresponding path program 1 times [2018-11-28 22:43:40,885 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:40,886 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:40,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:40,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:40,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:40,895 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 22:43:40,895 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 22:43:40,896 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 22:43:40,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:40,931 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:43:41,028 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 22:43:41,029 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:41,079 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 11 treesize of output 14 [2018-11-28 22:43:41,105 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 14 treesize of output 17 [2018-11-28 22:43:41,105 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:41,125 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:43:41,224 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 22:43:41,226 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:23, output treesize:20 [2018-11-28 22:43:41,321 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 22:43:41,351 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:41,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:43:41,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:43:41,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:43:41,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:43:41,352 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 5 states. [2018-11-28 22:43:41,652 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-28 22:43:41,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:41,876 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2018-11-28 22:43:41,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:43:41,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-11-28 22:43:41,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:41,878 INFO L225 Difference]: With dead ends: 50 [2018-11-28 22:43:41,878 INFO L226 Difference]: Without dead ends: 50 [2018-11-28 22:43:41,879 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-28 22:43:41,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-28 22:43:41,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2018-11-28 22:43:41,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-28 22:43:41,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2018-11-28 22:43:41,890 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 13 [2018-11-28 22:43:41,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:41,891 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2018-11-28 22:43:41,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:43:41,891 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2018-11-28 22:43:41,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 22:43:41,895 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:41,895 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:41,896 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 22:43:41,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:41,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1939585495, now seen corresponding path program 1 times [2018-11-28 22:43:41,896 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:41,896 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:41,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:41,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:41,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:41,908 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 22:43:41,908 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 22:43:41,908 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 22:43:41,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:41,940 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:43:42,003 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 22:43:42,004 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:42,032 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 15 treesize of output 18 [2018-11-28 22:43:42,041 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 18 treesize of output 21 [2018-11-28 22:43:42,042 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:42,089 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:43:42,103 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-28 22:43:42,104 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:30, output treesize:27 [2018-11-28 22:43:42,183 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 22:43:42,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:42,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:43:42,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:43:42,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:43:42,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:43:42,204 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 5 states. [2018-11-28 22:43:42,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:42,316 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2018-11-28 22:43:42,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:43:42,318 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-11-28 22:43:42,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:42,320 INFO L225 Difference]: With dead ends: 50 [2018-11-28 22:43:42,320 INFO L226 Difference]: Without dead ends: 50 [2018-11-28 22:43:42,320 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-28 22:43:42,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-28 22:43:42,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2018-11-28 22:43:42,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-28 22:43:42,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2018-11-28 22:43:42,326 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 13 [2018-11-28 22:43:42,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:42,326 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2018-11-28 22:43:42,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:43:42,327 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2018-11-28 22:43:42,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 22:43:42,327 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:42,328 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:42,328 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 22:43:42,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:42,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1058496856, now seen corresponding path program 1 times [2018-11-28 22:43:42,328 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:42,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:42,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:42,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:42,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:42,338 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 22:43:42,338 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 22:43:42,339 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 22:43:42,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:42,374 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:43:42,446 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 22:43:42,465 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:42,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 22:43:42,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:43:42,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:43:42,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:43:42,467 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand 5 states. [2018-11-28 22:43:42,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:42,571 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2018-11-28 22:43:42,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:43:42,572 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-11-28 22:43:42,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:42,573 INFO L225 Difference]: With dead ends: 50 [2018-11-28 22:43:42,573 INFO L226 Difference]: Without dead ends: 50 [2018-11-28 22:43:42,574 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:43:42,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-28 22:43:42,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 45. [2018-11-28 22:43:42,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-28 22:43:42,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2018-11-28 22:43:42,579 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 17 [2018-11-28 22:43:42,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:42,579 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2018-11-28 22:43:42,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:43:42,580 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2018-11-28 22:43:42,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 22:43:42,581 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:42,581 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:42,581 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 22:43:42,581 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:42,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1759561434, now seen corresponding path program 1 times [2018-11-28 22:43:42,582 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:42,582 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:42,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:42,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:42,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:42,590 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 22:43:42,590 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 22:43:42,590 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 22:43:42,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:42,625 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:43:42,658 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 22:43:42,659 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:42,673 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 15 treesize of output 18 [2018-11-28 22:43:42,680 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 18 treesize of output 21 [2018-11-28 22:43:42,681 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:42,691 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:43:42,705 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 22:43:42,705 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:27, output treesize:24 [2018-11-28 22:43:42,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:42,942 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-11-28 22:43:42,942 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-11-28 22:43:42,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 22:43:42,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 22:43:42,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:43:42,944 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand 6 states. [2018-11-28 22:43:45,046 WARN L180 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 27 [2018-11-28 22:43:45,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:45,113 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2018-11-28 22:43:45,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 22:43:45,116 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-11-28 22:43:45,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:45,117 INFO L225 Difference]: With dead ends: 46 [2018-11-28 22:43:45,117 INFO L226 Difference]: Without dead ends: 46 [2018-11-28 22:43:45,118 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-28 22:43:45,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-28 22:43:45,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2018-11-28 22:43:45,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-28 22:43:45,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2018-11-28 22:43:45,123 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 17 [2018-11-28 22:43:45,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:45,123 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2018-11-28 22:43:45,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 22:43:45,124 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2018-11-28 22:43:45,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 22:43:45,125 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:45,125 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 22:43:45,125 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 22:43:45,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:45,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1278627866, now seen corresponding path program 1 times [2018-11-28 22:43:45,126 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:45,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:45,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:45,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:45,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:45,134 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 22:43:45,135 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 22:43:45,135 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 22:43:45,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:45,168 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:43:45,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:43:45,328 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-11-28 22:43:45,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-11-28 22:43:45,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 22:43:45,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 22:43:45,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2018-11-28 22:43:45,329 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand 8 states. [2018-11-28 22:43:45,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:45,473 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2018-11-28 22:43:45,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 22:43:45,474 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-11-28 22:43:45,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:45,475 INFO L225 Difference]: With dead ends: 61 [2018-11-28 22:43:45,475 INFO L226 Difference]: Without dead ends: 61 [2018-11-28 22:43:45,476 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2018-11-28 22:43:45,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-11-28 22:43:45,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 47. [2018-11-28 22:43:45,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-28 22:43:45,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2018-11-28 22:43:45,483 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 19 [2018-11-28 22:43:45,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:45,483 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2018-11-28 22:43:45,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 22:43:45,484 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2018-11-28 22:43:45,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 22:43:45,484 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:45,485 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] [2018-11-28 22:43:45,485 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 22:43:45,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:45,485 INFO L82 PathProgramCache]: Analyzing trace with hash 28359059, now seen corresponding path program 1 times [2018-11-28 22:43:45,485 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:45,486 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:45,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:45,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:45,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:45,493 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 22:43:45,493 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 22:43:45,493 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 22:43:45,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:45,528 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:43:45,546 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-28 22:43:45,569 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-28 22:43:45,570 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:45,578 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:43:45,584 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 22:43:45,585 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2018-11-28 22:43:45,599 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 22:43:45,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:45,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:43:45,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:43:45,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:43:45,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:43:45,620 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand 3 states. [2018-11-28 22:43:45,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:45,635 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2018-11-28 22:43:45,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:43:45,636 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-11-28 22:43:45,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:45,637 INFO L225 Difference]: With dead ends: 46 [2018-11-28 22:43:45,638 INFO L226 Difference]: Without dead ends: 46 [2018-11-28 22:43:45,638 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 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 22:43:45,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-28 22:43:45,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-11-28 22:43:45,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-28 22:43:45,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2018-11-28 22:43:45,642 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 20 [2018-11-28 22:43:45,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:45,643 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2018-11-28 22:43:45,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:43:45,643 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2018-11-28 22:43:45,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 22:43:45,644 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:45,644 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] [2018-11-28 22:43:45,644 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 22:43:45,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:45,644 INFO L82 PathProgramCache]: Analyzing trace with hash 28359060, now seen corresponding path program 1 times [2018-11-28 22:43:45,644 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:45,644 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:45,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:45,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:45,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:45,652 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 22:43:45,652 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 22:43:45,652 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 22:43:45,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:45,694 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:43:45,717 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 18 [2018-11-28 22:43:45,911 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 0 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 21 [2018-11-28 22:43:45,912 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-28 22:43:46,023 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-28 22:43:46,045 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 2 xjuncts. [2018-11-28 22:43:46,046 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:34 [2018-11-28 22:43:46,174 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 13 [2018-11-28 22:43:46,247 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 22:43:46,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:46,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:43:46,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:43:46,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:43:46,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:43:46,270 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand 5 states. [2018-11-28 22:43:46,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:46,366 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2018-11-28 22:43:46,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:43:46,367 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-11-28 22:43:46,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:46,368 INFO L225 Difference]: With dead ends: 45 [2018-11-28 22:43:46,368 INFO L226 Difference]: Without dead ends: 45 [2018-11-28 22:43:46,368 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:43:46,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-28 22:43:46,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-28 22:43:46,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-28 22:43:46,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2018-11-28 22:43:46,372 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 20 [2018-11-28 22:43:46,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:46,375 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2018-11-28 22:43:46,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:43:46,375 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2018-11-28 22:43:46,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 22:43:46,376 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:46,376 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] [2018-11-28 22:43:46,377 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 22:43:46,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:46,377 INFO L82 PathProgramCache]: Analyzing trace with hash 28357519, now seen corresponding path program 1 times [2018-11-28 22:43:46,377 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:46,377 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:46,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:46,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:46,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:46,385 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 22:43:46,385 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 22:43:46,385 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 22:43:46,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:46,415 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:43:46,446 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 22:43:46,465 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:46,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 22:43:46,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:43:46,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:43:46,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:43:46,466 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand 5 states. [2018-11-28 22:43:46,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:46,551 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2018-11-28 22:43:46,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:43:46,551 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-11-28 22:43:46,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:46,552 INFO L225 Difference]: With dead ends: 59 [2018-11-28 22:43:46,552 INFO L226 Difference]: Without dead ends: 59 [2018-11-28 22:43:46,553 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:43:46,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-11-28 22:43:46,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 47. [2018-11-28 22:43:46,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-28 22:43:46,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2018-11-28 22:43:46,557 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 20 [2018-11-28 22:43:46,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:46,557 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2018-11-28 22:43:46,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:43:46,557 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2018-11-28 22:43:46,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 22:43:46,558 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:46,558 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] [2018-11-28 22:43:46,558 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 22:43:46,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:46,559 INFO L82 PathProgramCache]: Analyzing trace with hash -982759731, now seen corresponding path program 1 times [2018-11-28 22:43:46,559 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:46,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:46,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:46,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:46,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:46,565 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 22:43:46,565 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 22:43:46,565 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 22:43:46,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:43:46,600 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:43:47,258 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 22:43:47,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:47,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:43:47,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:43:47,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:43:47,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=11, Unknown=1, NotChecked=0, Total=20 [2018-11-28 22:43:47,278 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand 5 states. [2018-11-28 22:43:58,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:58,710 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2018-11-28 22:43:58,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:43:58,711 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-11-28 22:43:58,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:58,711 INFO L225 Difference]: With dead ends: 46 [2018-11-28 22:43:58,711 INFO L226 Difference]: Without dead ends: 27 [2018-11-28 22:43:58,712 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=8, Invalid=11, Unknown=1, NotChecked=0, Total=20 [2018-11-28 22:43:58,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-28 22:43:58,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-28 22:43:58,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-28 22:43:58,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2018-11-28 22:43:58,715 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 20 [2018-11-28 22:43:58,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:58,715 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2018-11-28 22:43:58,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:43:58,715 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2018-11-28 22:43:58,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 22:43:58,717 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:43:58,718 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:43:58,718 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 22:43:58,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:43:58,718 INFO L82 PathProgramCache]: Analyzing trace with hash 822324905, now seen corresponding path program 2 times [2018-11-28 22:43:58,718 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:43:58,718 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:43:58,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:58,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:43:58,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:43:58,729 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 22:43:58,729 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 22:43:58,729 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 22:43:58,738 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 22:43:58,753 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-28 22:43:58,753 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 22:43:58,755 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:43:58,929 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-11-28 22:43:58,947 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 15 treesize of output 18 [2018-11-28 22:43:58,987 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 18 treesize of output 21 [2018-11-28 22:43:58,987 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:59,085 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:43:59,113 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 22:43:59,114 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 22:43:59,129 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 22:43:59,130 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:30, output treesize:27 [2018-11-28 22:43:59,205 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-28 22:43:59,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:43:59,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:43:59,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:43:59,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:43:59,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:43:59,235 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 5 states. [2018-11-28 22:43:59,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:43:59,340 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2018-11-28 22:43:59,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:43:59,341 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-11-28 22:43:59,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:43:59,341 INFO L225 Difference]: With dead ends: 26 [2018-11-28 22:43:59,341 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 22:43:59,342 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:43:59,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 22:43:59,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 22:43:59,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 22:43:59,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 22:43:59,343 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-11-28 22:43:59,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:43:59,343 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 22:43:59,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:43:59,343 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 22:43:59,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 22:43:59,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:43:59 BoogieIcfgContainer [2018-11-28 22:43:59,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 22:43:59,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 22:43:59,350 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 22:43:59,350 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 22:43:59,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:43:39" (3/4) ... [2018-11-28 22:43:59,354 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 22:43:59,363 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 22:43:59,363 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2018-11-28 22:43:59,364 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2018-11-28 22:43:59,364 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 22:43:59,370 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-28 22:43:59,370 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-28 22:43:59,370 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 22:43:59,371 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 22:43:59,417 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 22:43:59,418 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 22:43:59,418 INFO L168 Benchmark]: Toolchain (without parser) took 20983.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 212.3 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-11-28 22:43:59,420 INFO L168 Benchmark]: CDTParser took 0.21 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 22:43:59,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 527.10 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 924.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-28 22:43:59,421 INFO L168 Benchmark]: Boogie Preprocessor took 135.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 924.5 MB in the beginning and 1.1 GB in the end (delta: -204.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-28 22:43:59,423 INFO L168 Benchmark]: RCFGBuilder took 745.45 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: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. [2018-11-28 22:43:59,423 INFO L168 Benchmark]: TraceAbstraction took 19501.70 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -52.9 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-28 22:43:59,424 INFO L168 Benchmark]: Witness Printer took 68.29 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: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2018-11-28 22:43:59,429 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 527.10 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 924.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 135.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 924.5 MB in the beginning and 1.1 GB in the end (delta: -204.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 745.45 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: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19501.70 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -52.9 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Witness Printer took 68.29 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: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 553]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 553]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 553]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 553]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 7 error locations. SAFE Result, 19.4s OverallTime, 12 OverallIterations, 2 TraceHistogramMax, 15.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 249 SDtfs, 345 SDslu, 266 SDs, 0 SdLazy, 340 SolverSat, 23 SolverUnsat, 15 SolverUnknown, 0 SolverNotchecked, 12.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 201 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=7, 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, 12 MinimizatonAttempts, 44 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 207 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 195 ConstructedInterpolants, 32 QuantifiedInterpolants, 29792 SizeOfPredicates, 41 NumberOfNonLiveVariables, 909 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 13/15 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...