./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 0ed9222f 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 0.1.24-0ed9222-m [2019-01-13 21:56:16,377 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-13 21:56:16,379 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-13 21:56:16,391 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-13 21:56:16,391 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-13 21:56:16,392 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-13 21:56:16,394 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-13 21:56:16,396 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-13 21:56:16,397 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-13 21:56:16,398 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-13 21:56:16,399 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-13 21:56:16,399 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-13 21:56:16,400 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-13 21:56:16,401 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-13 21:56:16,402 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-13 21:56:16,403 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-13 21:56:16,404 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-13 21:56:16,406 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-13 21:56:16,408 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-13 21:56:16,409 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-13 21:56:16,410 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-13 21:56:16,411 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-13 21:56:16,414 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-13 21:56:16,414 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-13 21:56:16,415 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-13 21:56:16,416 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-13 21:56:16,417 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-13 21:56:16,421 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-13 21:56:16,422 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-13 21:56:16,424 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-13 21:56:16,424 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-13 21:56:16,424 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-13 21:56:16,425 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-13 21:56:16,425 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-13 21:56:16,428 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-13 21:56:16,428 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-13 21:56:16,429 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-13 21:56:16,459 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-13 21:56:16,459 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-13 21:56:16,460 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-13 21:56:16,461 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-13 21:56:16,461 INFO L133 SettingsManager]: * Use SBE=true [2019-01-13 21:56:16,462 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-13 21:56:16,462 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-13 21:56:16,462 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-13 21:56:16,462 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-13 21:56:16,462 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-13 21:56:16,462 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-13 21:56:16,463 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-13 21:56:16,463 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-13 21:56:16,463 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-13 21:56:16,463 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-13 21:56:16,463 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-13 21:56:16,463 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-13 21:56:16,465 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-13 21:56:16,465 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-13 21:56:16,465 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-13 21:56:16,466 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-13 21:56:16,466 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 21:56:16,466 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-13 21:56:16,466 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-13 21:56:16,466 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-13 21:56:16,467 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-13 21:56:16,468 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 [2019-01-13 21:56:16,505 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-13 21:56:16,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-13 21:56:16,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-13 21:56:16,527 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-13 21:56:16,528 INFO L276 PluginConnector]: CDTParser initialized [2019-01-13 21:56:16,528 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-memsafety/mult_array-alloca_true-valid-memsafety_true-termination.i [2019-01-13 21:56:16,583 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b447d796d/0976ad1501e249d3b72740391e21a0be/FLAGd23a432d1 [2019-01-13 21:56:17,036 INFO L307 CDTParser]: Found 1 translation units. [2019-01-13 21:56:17,036 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/array-memsafety/mult_array-alloca_true-valid-memsafety_true-termination.i [2019-01-13 21:56:17,057 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b447d796d/0976ad1501e249d3b72740391e21a0be/FLAGd23a432d1 [2019-01-13 21:56:17,353 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b447d796d/0976ad1501e249d3b72740391e21a0be [2019-01-13 21:56:17,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-13 21:56:17,358 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-13 21:56:17,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-13 21:56:17,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-13 21:56:17,361 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-13 21:56:17,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 09:56:17" (1/1) ... [2019-01-13 21:56:17,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d70644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:17, skipping insertion in model container [2019-01-13 21:56:17,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 09:56:17" (1/1) ... [2019-01-13 21:56:17,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-13 21:56:17,420 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-13 21:56:17,746 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 21:56:17,761 INFO L191 MainTranslator]: Completed pre-run [2019-01-13 21:56:17,827 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 21:56:17,879 INFO L195 MainTranslator]: Completed translation [2019-01-13 21:56:17,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:17 WrapperNode [2019-01-13 21:56:17,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-13 21:56:17,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-13 21:56:17,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-13 21:56:17,880 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-13 21:56:17,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:17" (1/1) ... [2019-01-13 21:56:17,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:17" (1/1) ... [2019-01-13 21:56:17,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:17" (1/1) ... [2019-01-13 21:56:17,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:17" (1/1) ... [2019-01-13 21:56:17,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:17" (1/1) ... [2019-01-13 21:56:17,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:17" (1/1) ... [2019-01-13 21:56:17,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:17" (1/1) ... [2019-01-13 21:56:18,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-13 21:56:18,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-13 21:56:18,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-13 21:56:18,000 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-13 21:56:18,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:17" (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 [2019-01-13 21:56:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-13 21:56:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-13 21:56:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-01-13 21:56:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-01-13 21:56:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-13 21:56:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-01-13 21:56:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-01-13 21:56:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-01-13 21:56:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-01-13 21:56:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-01-13 21:56:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-01-13 21:56:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-01-13 21:56:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-01-13 21:56:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-01-13 21:56:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-01-13 21:56:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-01-13 21:56:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-01-13 21:56:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-01-13 21:56:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-01-13 21:56:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-01-13 21:56:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-01-13 21:56:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-01-13 21:56:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-01-13 21:56:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-01-13 21:56:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-01-13 21:56:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-01-13 21:56:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-01-13 21:56:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-01-13 21:56:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-01-13 21:56:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-01-13 21:56:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-01-13 21:56:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-01-13 21:56:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-01-13 21:56:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-01-13 21:56:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-01-13 21:56:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-01-13 21:56:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-01-13 21:56:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-01-13 21:56:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-01-13 21:56:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-01-13 21:56:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-01-13 21:56:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-01-13 21:56:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-01-13 21:56:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-01-13 21:56:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-01-13 21:56:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-01-13 21:56:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-01-13 21:56:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-01-13 21:56:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-01-13 21:56:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-01-13 21:56:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-01-13 21:56:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-01-13 21:56:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-01-13 21:56:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-01-13 21:56:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-01-13 21:56:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-01-13 21:56:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-01-13 21:56:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-01-13 21:56:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-01-13 21:56:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-01-13 21:56:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-01-13 21:56:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-01-13 21:56:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-01-13 21:56:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-01-13 21:56:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-01-13 21:56:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-01-13 21:56:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-01-13 21:56:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-01-13 21:56:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-01-13 21:56:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-01-13 21:56:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-01-13 21:56:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-01-13 21:56:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-01-13 21:56:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-01-13 21:56:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-01-13 21:56:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-01-13 21:56:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-01-13 21:56:18,086 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-01-13 21:56:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-01-13 21:56:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-01-13 21:56:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-01-13 21:56:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-01-13 21:56:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-01-13 21:56:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-01-13 21:56:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-01-13 21:56:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-01-13 21:56:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-01-13 21:56:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-01-13 21:56:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-01-13 21:56:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-01-13 21:56:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-01-13 21:56:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-01-13 21:56:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-01-13 21:56:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-01-13 21:56:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-01-13 21:56:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-01-13 21:56:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-01-13 21:56:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-01-13 21:56:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-01-13 21:56:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-01-13 21:56:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-01-13 21:56:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-01-13 21:56:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-01-13 21:56:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-01-13 21:56:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-01-13 21:56:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-01-13 21:56:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-01-13 21:56:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-01-13 21:56:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-13 21:56:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-13 21:56:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-13 21:56:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-13 21:56:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-13 21:56:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-13 21:56:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-13 21:56:18,768 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-13 21:56:18,768 INFO L286 CfgBuilder]: Removed 2 assue(true) statements. [2019-01-13 21:56:18,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 09:56:18 BoogieIcfgContainer [2019-01-13 21:56:18,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-13 21:56:18,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-13 21:56:18,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-13 21:56:18,774 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-13 21:56:18,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.01 09:56:17" (1/3) ... [2019-01-13 21:56:18,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fde35dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 09:56:18, skipping insertion in model container [2019-01-13 21:56:18,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:17" (2/3) ... [2019-01-13 21:56:18,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fde35dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 09:56:18, skipping insertion in model container [2019-01-13 21:56:18,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 09:56:18" (3/3) ... [2019-01-13 21:56:18,778 INFO L112 eAbstractionObserver]: Analyzing ICFG mult_array-alloca_true-valid-memsafety_true-termination.i [2019-01-13 21:56:18,789 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-13 21:56:18,798 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-01-13 21:56:18,819 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-01-13 21:56:18,845 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-13 21:56:18,846 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-13 21:56:18,846 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-13 21:56:18,846 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-13 21:56:18,847 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-13 21:56:18,847 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-13 21:56:18,848 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-13 21:56:18,848 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-13 21:56:18,851 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-13 21:56:18,864 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-01-13 21:56:18,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-01-13 21:56:18,873 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:18,874 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:18,876 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:18,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:18,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1113687630, now seen corresponding path program 1 times [2019-01-13 21:56:18,883 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:18,884 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:18,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:18,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:18,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:18,961 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-01-13 21:56:18,961 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-01-13 21:56:18,961 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 [2019-01-13 21:56:18,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:19,021 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 21:56:19,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:19,208 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:19,208 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-13 21:56:19,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-13 21:56:19,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-13 21:56:19,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-13 21:56:19,227 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2019-01-13 21:56:19,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:19,343 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2019-01-13 21:56:19,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-13 21:56:19,345 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-01-13 21:56:19,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:19,353 INFO L225 Difference]: With dead ends: 33 [2019-01-13 21:56:19,353 INFO L226 Difference]: Without dead ends: 30 [2019-01-13 21:56:19,355 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-13 21:56:19,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-01-13 21:56:19,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-01-13 21:56:19,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-01-13 21:56:19,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2019-01-13 21:56:19,389 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 12 [2019-01-13 21:56:19,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:19,390 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2019-01-13 21:56:19,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-13 21:56:19,390 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2019-01-13 21:56:19,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-13 21:56:19,391 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:19,391 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:19,391 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:19,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:19,392 INFO L82 PathProgramCache]: Analyzing trace with hash 164578132, now seen corresponding path program 1 times [2019-01-13 21:56:19,392 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:19,392 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:19,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:19,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:19,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:19,403 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-01-13 21:56:19,403 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-01-13 21:56:19,403 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 [2019-01-13 21:56:19,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:19,446 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 21:56:19,523 INFO L701 Elim1Store]: detected not equals via solver [2019-01-13 21:56:19,529 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 [2019-01-13 21:56:19,536 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 [2019-01-13 21:56:19,537 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-13 21:56:19,553 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-13 21:56:19,651 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. [2019-01-13 21:56:19,652 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-01-13 21:56:19,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:19,699 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:19,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-13 21:56:19,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-13 21:56:19,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-13 21:56:19,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-13 21:56:19,702 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 3 states. [2019-01-13 21:56:19,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:19,753 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-01-13 21:56:19,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-13 21:56:19,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-01-13 21:56:19,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:19,755 INFO L225 Difference]: With dead ends: 28 [2019-01-13 21:56:19,755 INFO L226 Difference]: Without dead ends: 28 [2019-01-13 21:56:19,756 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 [2019-01-13 21:56:19,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-01-13 21:56:19,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-01-13 21:56:19,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-01-13 21:56:19,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2019-01-13 21:56:19,761 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 13 [2019-01-13 21:56:19,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:19,762 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2019-01-13 21:56:19,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-13 21:56:19,762 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2019-01-13 21:56:19,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-13 21:56:19,763 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:19,763 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:19,763 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:19,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:19,764 INFO L82 PathProgramCache]: Analyzing trace with hash 164578133, now seen corresponding path program 1 times [2019-01-13 21:56:19,764 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:19,764 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:19,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:19,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:19,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:19,773 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-01-13 21:56:19,774 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-01-13 21:56:19,774 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 [2019-01-13 21:56:19,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:19,832 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 21:56:19,931 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 [2019-01-13 21:56:19,931 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-13 21:56:19,968 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 [2019-01-13 21:56:19,978 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 [2019-01-13 21:56:19,979 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-01-13 21:56:19,989 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-13 21:56:20,002 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. [2019-01-13 21:56:20,002 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:23, output treesize:20 [2019-01-13 21:56:20,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:20,116 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:20,116 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-13 21:56:20,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-13 21:56:20,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-13 21:56:20,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-13 21:56:20,117 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 5 states. [2019-01-13 21:56:20,376 WARN L181 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2019-01-13 21:56:20,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:20,555 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2019-01-13 21:56:20,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-13 21:56:20,556 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-01-13 21:56:20,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:20,558 INFO L225 Difference]: With dead ends: 50 [2019-01-13 21:56:20,559 INFO L226 Difference]: Without dead ends: 50 [2019-01-13 21:56:20,559 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 [2019-01-13 21:56:20,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-01-13 21:56:20,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2019-01-13 21:56:20,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-01-13 21:56:20,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2019-01-13 21:56:20,566 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 13 [2019-01-13 21:56:20,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:20,567 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2019-01-13 21:56:20,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-13 21:56:20,567 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2019-01-13 21:56:20,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-13 21:56:20,568 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:20,568 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:20,568 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:20,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:20,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1939585495, now seen corresponding path program 1 times [2019-01-13 21:56:20,569 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:20,569 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:20,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:20,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:20,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:20,578 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-01-13 21:56:20,578 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-01-13 21:56:20,578 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 [2019-01-13 21:56:20,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:20,613 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 21:56:20,688 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 [2019-01-13 21:56:20,688 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-13 21:56:20,821 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 [2019-01-13 21:56:20,861 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 [2019-01-13 21:56:20,862 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-01-13 21:56:20,947 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-13 21:56:21,002 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. [2019-01-13 21:56:21,003 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:30, output treesize:27 [2019-01-13 21:56:21,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:21,086 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:21,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-13 21:56:21,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-13 21:56:21,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-13 21:56:21,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-13 21:56:21,088 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 5 states. [2019-01-13 21:56:21,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:21,239 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2019-01-13 21:56:21,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-13 21:56:21,242 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-01-13 21:56:21,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:21,243 INFO L225 Difference]: With dead ends: 50 [2019-01-13 21:56:21,244 INFO L226 Difference]: Without dead ends: 50 [2019-01-13 21:56:21,244 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 [2019-01-13 21:56:21,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-01-13 21:56:21,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2019-01-13 21:56:21,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-01-13 21:56:21,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2019-01-13 21:56:21,251 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 13 [2019-01-13 21:56:21,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:21,252 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2019-01-13 21:56:21,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-13 21:56:21,253 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2019-01-13 21:56:21,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-01-13 21:56:21,253 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:21,254 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:21,255 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:21,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:21,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1058496856, now seen corresponding path program 1 times [2019-01-13 21:56:21,255 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:21,256 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:21,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:21,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:21,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:21,266 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-01-13 21:56:21,267 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-01-13 21:56:21,267 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 [2019-01-13 21:56:21,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:21,297 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 21:56:21,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:21,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:21,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-13 21:56:21,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-13 21:56:21,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-13 21:56:21,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-01-13 21:56:21,374 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand 5 states. [2019-01-13 21:56:21,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:21,464 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2019-01-13 21:56:21,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-13 21:56:21,467 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-01-13 21:56:21,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:21,468 INFO L225 Difference]: With dead ends: 50 [2019-01-13 21:56:21,468 INFO L226 Difference]: Without dead ends: 50 [2019-01-13 21:56:21,468 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 [2019-01-13 21:56:21,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-01-13 21:56:21,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 45. [2019-01-13 21:56:21,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-01-13 21:56:21,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2019-01-13 21:56:21,474 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 17 [2019-01-13 21:56:21,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:21,475 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2019-01-13 21:56:21,475 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-13 21:56:21,475 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2019-01-13 21:56:21,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-01-13 21:56:21,476 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:21,476 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:21,476 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:21,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:21,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1759561434, now seen corresponding path program 1 times [2019-01-13 21:56:21,477 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:21,477 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:21,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:21,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:21,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:21,486 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-01-13 21:56:21,487 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-01-13 21:56:21,487 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 [2019-01-13 21:56:21,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:21,519 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 21:56:21,544 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 [2019-01-13 21:56:21,544 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-13 21:56:21,561 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 [2019-01-13 21:56:21,574 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 [2019-01-13 21:56:21,574 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-01-13 21:56:21,586 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-13 21:56:21,601 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. [2019-01-13 21:56:21,602 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:27, output treesize:24 [2019-01-13 21:56:21,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:21,794 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-01-13 21:56:21,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-01-13 21:56:21,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-13 21:56:21,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-13 21:56:21,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-13 21:56:21,796 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand 6 states. [2019-01-13 21:56:22,399 WARN L181 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2019-01-13 21:56:22,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:22,438 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2019-01-13 21:56:22,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-13 21:56:22,439 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-01-13 21:56:22,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:22,440 INFO L225 Difference]: With dead ends: 46 [2019-01-13 21:56:22,440 INFO L226 Difference]: Without dead ends: 46 [2019-01-13 21:56:22,441 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-01-13 21:56:22,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-01-13 21:56:22,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2019-01-13 21:56:22,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-01-13 21:56:22,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2019-01-13 21:56:22,446 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 17 [2019-01-13 21:56:22,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:22,446 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2019-01-13 21:56:22,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-13 21:56:22,446 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2019-01-13 21:56:22,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-13 21:56:22,447 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:22,447 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:22,447 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:22,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:22,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1278627866, now seen corresponding path program 1 times [2019-01-13 21:56:22,448 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:22,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:22,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:22,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:22,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:22,457 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-01-13 21:56:22,457 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-01-13 21:56:22,457 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 [2019-01-13 21:56:22,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:22,517 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 21:56:22,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:22,641 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-01-13 21:56:22,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-01-13 21:56:22,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-13 21:56:22,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-13 21:56:22,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-01-13 21:56:22,643 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand 8 states. [2019-01-13 21:56:22,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:22,735 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2019-01-13 21:56:22,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-13 21:56:22,735 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-01-13 21:56:22,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:22,736 INFO L225 Difference]: With dead ends: 61 [2019-01-13 21:56:22,736 INFO L226 Difference]: Without dead ends: 61 [2019-01-13 21:56:22,737 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-01-13 21:56:22,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-01-13 21:56:22,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 47. [2019-01-13 21:56:22,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-01-13 21:56:22,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2019-01-13 21:56:22,745 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 19 [2019-01-13 21:56:22,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:22,746 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2019-01-13 21:56:22,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-13 21:56:22,746 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2019-01-13 21:56:22,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-01-13 21:56:22,746 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:22,747 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] [2019-01-13 21:56:22,747 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:22,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:22,747 INFO L82 PathProgramCache]: Analyzing trace with hash 28359059, now seen corresponding path program 1 times [2019-01-13 21:56:22,747 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:22,747 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:22,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:22,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:22,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:22,755 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-01-13 21:56:22,755 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-01-13 21:56:22,755 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 [2019-01-13 21:56:22,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:22,794 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 21:56:22,813 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 [2019-01-13 21:56:22,835 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 [2019-01-13 21:56:22,835 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-13 21:56:22,844 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-13 21:56:22,851 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. [2019-01-13 21:56:22,851 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2019-01-13 21:56:22,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-13 21:56:22,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:22,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-13 21:56:22,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-13 21:56:22,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-13 21:56:22,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-13 21:56:22,899 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand 3 states. [2019-01-13 21:56:22,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:22,913 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2019-01-13 21:56:22,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-13 21:56:22,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-01-13 21:56:22,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:22,916 INFO L225 Difference]: With dead ends: 46 [2019-01-13 21:56:22,916 INFO L226 Difference]: Without dead ends: 46 [2019-01-13 21:56:22,917 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 [2019-01-13 21:56:22,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-01-13 21:56:22,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-01-13 21:56:22,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-01-13 21:56:22,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2019-01-13 21:56:22,921 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 20 [2019-01-13 21:56:22,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:22,921 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2019-01-13 21:56:22,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-13 21:56:22,922 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2019-01-13 21:56:22,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-01-13 21:56:22,922 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:22,923 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] [2019-01-13 21:56:22,923 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:22,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:22,923 INFO L82 PathProgramCache]: Analyzing trace with hash 28359060, now seen corresponding path program 1 times [2019-01-13 21:56:22,923 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:22,923 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:22,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:22,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:22,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:22,931 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-01-13 21:56:22,931 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-01-13 21:56:22,931 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 [2019-01-13 21:56:22,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:22,975 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 21:56:22,996 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 [2019-01-13 21:56:23,177 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 [2019-01-13 21:56:23,178 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2019-01-13 21:56:23,254 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-13 21:56:23,275 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. [2019-01-13 21:56:23,275 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:34 [2019-01-13 21:56:23,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-13 21:56:23,361 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:23,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-13 21:56:23,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-13 21:56:23,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-13 21:56:23,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-13 21:56:23,363 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand 5 states. [2019-01-13 21:56:23,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:23,443 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2019-01-13 21:56:23,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-13 21:56:23,444 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-01-13 21:56:23,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:23,445 INFO L225 Difference]: With dead ends: 45 [2019-01-13 21:56:23,445 INFO L226 Difference]: Without dead ends: 45 [2019-01-13 21:56:23,447 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-01-13 21:56:23,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-01-13 21:56:23,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-01-13 21:56:23,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-01-13 21:56:23,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2019-01-13 21:56:23,452 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 20 [2019-01-13 21:56:23,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:23,453 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2019-01-13 21:56:23,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-13 21:56:23,454 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2019-01-13 21:56:23,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-01-13 21:56:23,455 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:23,455 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] [2019-01-13 21:56:23,455 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:23,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:23,456 INFO L82 PathProgramCache]: Analyzing trace with hash 28357519, now seen corresponding path program 1 times [2019-01-13 21:56:23,457 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:23,458 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:23,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:23,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:23,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:23,466 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-01-13 21:56:23,466 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-01-13 21:56:23,466 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 [2019-01-13 21:56:23,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:23,497 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 21:56:23,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-13 21:56:23,578 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:23,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-13 21:56:23,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-13 21:56:23,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-13 21:56:23,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-01-13 21:56:23,579 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand 5 states. [2019-01-13 21:56:23,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:23,629 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2019-01-13 21:56:23,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-13 21:56:23,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-01-13 21:56:23,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:23,631 INFO L225 Difference]: With dead ends: 59 [2019-01-13 21:56:23,631 INFO L226 Difference]: Without dead ends: 59 [2019-01-13 21:56:23,632 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 [2019-01-13 21:56:23,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-01-13 21:56:23,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 47. [2019-01-13 21:56:23,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-01-13 21:56:23,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2019-01-13 21:56:23,637 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 20 [2019-01-13 21:56:23,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:23,638 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2019-01-13 21:56:23,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-13 21:56:23,638 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2019-01-13 21:56:23,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-01-13 21:56:23,639 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:23,640 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] [2019-01-13 21:56:23,640 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:23,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:23,640 INFO L82 PathProgramCache]: Analyzing trace with hash -982759731, now seen corresponding path program 1 times [2019-01-13 21:56:23,640 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:23,640 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:23,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:23,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:23,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:23,647 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-01-13 21:56:23,647 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-01-13 21:56:23,647 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 [2019-01-13 21:56:23,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:23,677 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 21:56:24,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-13 21:56:24,532 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:24,532 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-13 21:56:24,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-13 21:56:24,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-13 21:56:24,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=11, Unknown=1, NotChecked=0, Total=20 [2019-01-13 21:56:24,534 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand 5 states. [2019-01-13 21:56:36,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:36,483 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2019-01-13 21:56:36,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-13 21:56:36,484 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-01-13 21:56:36,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:36,485 INFO L225 Difference]: With dead ends: 46 [2019-01-13 21:56:36,485 INFO L226 Difference]: Without dead ends: 27 [2019-01-13 21:56:36,485 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=8, Invalid=11, Unknown=1, NotChecked=0, Total=20 [2019-01-13 21:56:36,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-01-13 21:56:36,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-01-13 21:56:36,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-01-13 21:56:36,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2019-01-13 21:56:36,488 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 20 [2019-01-13 21:56:36,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:36,489 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2019-01-13 21:56:36,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-13 21:56:36,489 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2019-01-13 21:56:36,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-01-13 21:56:36,490 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:36,492 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:36,492 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:36,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:36,492 INFO L82 PathProgramCache]: Analyzing trace with hash 822324905, now seen corresponding path program 2 times [2019-01-13 21:56:36,492 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:36,492 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:36,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:36,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:36,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:36,501 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-01-13 21:56:36,502 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-01-13 21:56:36,502 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 [2019-01-13 21:56:36,512 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-01-13 21:56:36,533 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-01-13 21:56:36,534 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-13 21:56:36,538 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 21:56:36,734 WARN L181 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2019-01-13 21:56:36,746 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 [2019-01-13 21:56:36,791 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 [2019-01-13 21:56:36,791 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-13 21:56:36,805 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-13 21:56:36,824 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 [2019-01-13 21:56:36,825 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-01-13 21:56:36,838 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. [2019-01-13 21:56:36,839 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:30, output treesize:27 [2019-01-13 21:56:36,914 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-01-13 21:56:36,941 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:36,941 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-13 21:56:36,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-13 21:56:36,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-13 21:56:36,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-01-13 21:56:36,942 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 5 states. [2019-01-13 21:56:37,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:37,046 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2019-01-13 21:56:37,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-13 21:56:37,046 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-01-13 21:56:37,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:37,047 INFO L225 Difference]: With dead ends: 26 [2019-01-13 21:56:37,047 INFO L226 Difference]: Without dead ends: 0 [2019-01-13 21:56:37,047 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 [2019-01-13 21:56:37,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-13 21:56:37,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-13 21:56:37,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-13 21:56:37,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-13 21:56:37,048 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2019-01-13 21:56:37,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:37,049 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-13 21:56:37,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-13 21:56:37,049 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-13 21:56:37,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-13 21:56:37,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.01 09:56:37 BoogieIcfgContainer [2019-01-13 21:56:37,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-13 21:56:37,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-13 21:56:37,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-13 21:56:37,055 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-13 21:56:37,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 09:56:18" (3/4) ... [2019-01-13 21:56:37,061 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-13 21:56:37,068 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-01-13 21:56:37,069 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-01-13 21:56:37,069 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-01-13 21:56:37,069 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-01-13 21:56:37,074 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-01-13 21:56:37,074 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-01-13 21:56:37,074 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-13 21:56:37,075 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-13 21:56:37,120 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-13 21:56:37,120 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-13 21:56:37,121 INFO L168 Benchmark]: Toolchain (without parser) took 19764.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 194.0 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -158.6 MB). Peak memory consumption was 35.4 MB. Max. memory is 11.5 GB. [2019-01-13 21:56:37,123 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 21:56:37,124 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.07 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 929.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-01-13 21:56:37,125 INFO L168 Benchmark]: Boogie Preprocessor took 119.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2019-01-13 21:56:37,128 INFO L168 Benchmark]: RCFGBuilder took 769.85 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: 38.9 MB). Peak memory consumption was 38.9 MB. Max. memory is 11.5 GB. [2019-01-13 21:56:37,129 INFO L168 Benchmark]: TraceAbstraction took 18283.28 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -46.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-01-13 21:56:37,130 INFO L168 Benchmark]: Witness Printer took 66.05 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. [2019-01-13 21:56:37,138 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 521.07 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 929.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 119.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 769.85 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: 38.9 MB). Peak memory consumption was 38.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18283.28 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -46.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * Witness Printer took 66.05 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: 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: 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: 550]: 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 - 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, 18.2s OverallTime, 12 OverallIterations, 2 TraceHistogramMax, 13.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 249 SDtfs, 345 SDslu, 266 SDs, 0 SdLazy, 340 SolverSat, 23 SolverUnsat, 15 SolverUnknown, 0 SolverNotchecked, 12.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 201 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.4s 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, 933 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...