./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/memsafety/test-0158_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/memsafety/test-0158_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 a7cfd7481ea91a8e19e08969c84b730ff13700e8 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 22:46:09,491 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 22:46:09,493 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 22:46:09,506 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 22:46:09,506 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 22:46:09,507 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 22:46:09,509 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 22:46:09,512 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 22:46:09,514 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 22:46:09,518 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 22:46:09,519 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 22:46:09,519 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 22:46:09,524 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 22:46:09,525 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 22:46:09,527 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 22:46:09,528 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 22:46:09,530 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 22:46:09,535 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 22:46:09,541 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 22:46:09,545 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 22:46:09,550 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 22:46:09,553 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 22:46:09,558 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 22:46:09,560 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 22:46:09,560 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 22:46:09,561 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 22:46:09,563 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 22:46:09,564 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 22:46:09,564 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 22:46:09,571 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 22:46:09,572 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 22:46:09,574 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 22:46:09,574 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 22:46:09,575 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 22:46:09,577 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 22:46:09,578 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 22:46:09,579 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 22:46:09,606 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 22:46:09,606 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 22:46:09,607 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 22:46:09,607 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 22:46:09,608 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 22:46:09,608 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 22:46:09,609 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 22:46:09,609 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 22:46:09,609 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 22:46:09,609 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 22:46:09,609 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 22:46:09,610 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 22:46:09,610 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 22:46:09,610 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 22:46:09,610 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 22:46:09,610 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 22:46:09,610 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 22:46:09,611 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 22:46:09,612 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 22:46:09,612 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 22:46:09,613 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 22:46:09,613 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 22:46:09,613 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 22:46:09,613 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:46:09,613 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 22:46:09,614 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 22:46:09,615 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 22:46:09,615 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 22:46:09,615 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 -> a7cfd7481ea91a8e19e08969c84b730ff13700e8 [2018-11-28 22:46:09,676 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 22:46:09,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 22:46:09,699 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 22:46:09,700 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 22:46:09,701 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 22:46:09,703 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/memsafety/test-0158_true-valid-memsafety_true-termination.i [2018-11-28 22:46:09,770 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4383e9e/c1ce47df05e743ada805261118626131/FLAG0db440617 [2018-11-28 22:46:10,274 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 22:46:10,274 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/memsafety/test-0158_true-valid-memsafety_true-termination.i [2018-11-28 22:46:10,287 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4383e9e/c1ce47df05e743ada805261118626131/FLAG0db440617 [2018-11-28 22:46:10,559 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4383e9e/c1ce47df05e743ada805261118626131 [2018-11-28 22:46:10,564 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 22:46:10,565 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 22:46:10,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 22:46:10,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 22:46:10,571 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 22:46:10,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:46:10" (1/1) ... [2018-11-28 22:46:10,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51390636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:10, skipping insertion in model container [2018-11-28 22:46:10,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:46:10" (1/1) ... [2018-11-28 22:46:10,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 22:46:10,630 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 22:46:10,995 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:46:11,002 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 22:46:11,069 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:46:11,136 INFO L195 MainTranslator]: Completed translation [2018-11-28 22:46:11,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:11 WrapperNode [2018-11-28 22:46:11,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 22:46:11,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 22:46:11,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 22:46:11,138 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 22:46:11,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:11" (1/1) ... [2018-11-28 22:46:11,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:11" (1/1) ... [2018-11-28 22:46:11,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:11" (1/1) ... [2018-11-28 22:46:11,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:11" (1/1) ... [2018-11-28 22:46:11,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:11" (1/1) ... [2018-11-28 22:46:11,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:11" (1/1) ... [2018-11-28 22:46:11,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:11" (1/1) ... [2018-11-28 22:46:11,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 22:46:11,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 22:46:11,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 22:46:11,287 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 22:46:11,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:46:11,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 22:46:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 22:46:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 22:46:11,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 22:46:11,366 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 22:46:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 22:46:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 22:46:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 22:46:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 22:46:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 22:46:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 22:46:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 22:46:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 22:46:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 22:46:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 22:46:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 22:46:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 22:46:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 22:46:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 22:46:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 22:46:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 22:46:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 22:46:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 22:46:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 22:46:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 22:46:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 22:46:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 22:46:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 22:46:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 22:46:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 22:46:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 22:46:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 22:46:11,378 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 22:46:11,379 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 22:46:11,379 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 22:46:11,379 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 22:46:11,379 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 22:46:11,379 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 22:46:11,379 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 22:46:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 22:46:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 22:46:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 22:46:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 22:46:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 22:46:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 22:46:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 22:46:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 22:46:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 22:46:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 22:46:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 22:46:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 22:46:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 22:46:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 22:46:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 22:46:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 22:46:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 22:46:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 22:46:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 22:46:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 22:46:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 22:46:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 22:46:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 22:46:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 22:46:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 22:46:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 22:46:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 22:46:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 22:46:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 22:46:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 22:46:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 22:46:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 22:46:11,390 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 22:46:11,390 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 22:46:11,391 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 22:46:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 22:46:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 22:46:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 22:46:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 22:46:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 22:46:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 22:46:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 22:46:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 22:46:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 22:46:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 22:46:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 22:46:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 22:46:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 22:46:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 22:46:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 22:46:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 22:46:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 22:46:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 22:46:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 22:46:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 22:46:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 22:46:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 22:46:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 22:46:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 22:46:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 22:46:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 22:46:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 22:46:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 22:46:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 22:46:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 22:46:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 22:46:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 22:46:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 22:46:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 22:46:11,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 22:46:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 22:46:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 22:46:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 22:46:12,115 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 22:46:12,115 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 22:46:12,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:46:12 BoogieIcfgContainer [2018-11-28 22:46:12,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 22:46:12,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 22:46:12,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 22:46:12,120 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 22:46:12,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:46:10" (1/3) ... [2018-11-28 22:46:12,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a71a9ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:46:12, skipping insertion in model container [2018-11-28 22:46:12,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:11" (2/3) ... [2018-11-28 22:46:12,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a71a9ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:46:12, skipping insertion in model container [2018-11-28 22:46:12,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:46:12" (3/3) ... [2018-11-28 22:46:12,124 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_true-valid-memsafety_true-termination.i [2018-11-28 22:46:12,135 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 22:46:12,144 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-11-28 22:46:12,162 INFO L257 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2018-11-28 22:46:12,190 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 22:46:12,191 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 22:46:12,191 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 22:46:12,192 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 22:46:12,192 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 22:46:12,192 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 22:46:12,192 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 22:46:12,193 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 22:46:12,193 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 22:46:12,209 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-28 22:46:12,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 22:46:12,219 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:46:12,221 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:46:12,223 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 22:46:12,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:46:12,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1092847752, now seen corresponding path program 1 times [2018-11-28 22:46:12,232 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:46:12,233 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:46:12,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:12,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:46:12,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:46:12,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:46:12,443 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:46:12,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:46:12,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:46:12,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:46:12,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:46:12,469 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-11-28 22:46:12,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:46:12,705 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2018-11-28 22:46:12,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:46:12,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 22:46:12,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:46:12,723 INFO L225 Difference]: With dead ends: 21 [2018-11-28 22:46:12,724 INFO L226 Difference]: Without dead ends: 18 [2018-11-28 22:46:12,726 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:46:12,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-28 22:46:12,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-28 22:46:12,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 22:46:12,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-11-28 22:46:12,776 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 7 [2018-11-28 22:46:12,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:46:12,777 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2018-11-28 22:46:12,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:46:12,778 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2018-11-28 22:46:12,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 22:46:12,779 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:46:12,779 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:46:12,779 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION, mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 22:46:12,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:46:12,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1092847751, now seen corresponding path program 1 times [2018-11-28 22:46:12,780 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:46:12,780 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:46:12,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:12,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:46:12,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:46:12,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:46:12,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:46:12,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:46:12,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:46:12,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:46:12,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:46:12,905 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 3 states. [2018-11-28 22:46:12,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:46:12,992 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2018-11-28 22:46:12,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:46:12,993 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 22:46:12,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:46:12,994 INFO L225 Difference]: With dead ends: 15 [2018-11-28 22:46:12,994 INFO L226 Difference]: Without dead ends: 15 [2018-11-28 22:46:12,995 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:46:12,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-28 22:46:12,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-28 22:46:12,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 22:46:12,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-11-28 22:46:12,998 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2018-11-28 22:46:12,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:46:12,998 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-11-28 22:46:12,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:46:12,998 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-11-28 22:46:12,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 22:46:12,999 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:46:12,999 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:46:12,999 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1REQUIRES_VIOLATION, mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 22:46:13,000 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:46:13,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1175299886, now seen corresponding path program 1 times [2018-11-28 22:46:13,000 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:46:13,000 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:46:13,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:13,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:46:13,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:46:13,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:46:13,214 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:46:13,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:46:13,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:46:13,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:46:13,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:46:13,215 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 5 states. [2018-11-28 22:46:13,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:46:13,290 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2018-11-28 22:46:13,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:46:13,291 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-11-28 22:46:13,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:46:13,292 INFO L225 Difference]: With dead ends: 14 [2018-11-28 22:46:13,292 INFO L226 Difference]: Without dead ends: 14 [2018-11-28 22:46:13,293 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-28 22:46:13,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-28 22:46:13,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-28 22:46:13,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-28 22:46:13,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2018-11-28 22:46:13,297 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2018-11-28 22:46:13,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:46:13,297 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2018-11-28 22:46:13,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:46:13,297 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2018-11-28 22:46:13,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 22:46:13,298 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:46:13,298 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:46:13,298 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1REQUIRES_VIOLATION, mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 22:46:13,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:46:13,299 INFO L82 PathProgramCache]: Analyzing trace with hash -2074558053, now seen corresponding path program 1 times [2018-11-28 22:46:13,299 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:46:13,299 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:46:13,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:13,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:46:13,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:46:13,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:46:13,492 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:46:13,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:46:13,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:46:13,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:46:13,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:46:13,494 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand 5 states. [2018-11-28 22:46:13,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:46:13,665 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2018-11-28 22:46:13,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:46:13,666 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-28 22:46:13,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:46:13,667 INFO L225 Difference]: With dead ends: 13 [2018-11-28 22:46:13,667 INFO L226 Difference]: Without dead ends: 13 [2018-11-28 22:46:13,668 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-28 22:46:13,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-11-28 22:46:13,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-11-28 22:46:13,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-28 22:46:13,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2018-11-28 22:46:13,671 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2018-11-28 22:46:13,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:46:13,671 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2018-11-28 22:46:13,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:46:13,671 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2018-11-28 22:46:13,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 22:46:13,672 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:46:13,672 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:46:13,673 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1REQUIRES_VIOLATION, mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 22:46:13,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:46:13,673 INFO L82 PathProgramCache]: Analyzing trace with hash 113209845, now seen corresponding path program 1 times [2018-11-28 22:46:13,673 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:46:13,673 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:46:13,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:13,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:46:13,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:46:13,926 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 17 [2018-11-28 22:46:14,189 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 11 [2018-11-28 22:46:14,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:46:14,192 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:46:14,192 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 22:46:14,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 22:46:14,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 22:46:14,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:46:14,195 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand 6 states. [2018-11-28 22:46:14,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:46:14,569 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-11-28 22:46:14,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 22:46:14,570 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-11-28 22:46:14,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:46:14,570 INFO L225 Difference]: With dead ends: 12 [2018-11-28 22:46:14,570 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 22:46:14,571 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-28 22:46:14,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 22:46:14,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 22:46:14,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 22:46:14,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 22:46:14,573 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-11-28 22:46:14,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:46:14,573 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 22:46:14,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 22:46:14,573 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 22:46:14,574 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 22:46:14,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:46:14 BoogieIcfgContainer [2018-11-28 22:46:14,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 22:46:14,579 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 22:46:14,579 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 22:46:14,579 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 22:46:14,580 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:46:12" (3/4) ... [2018-11-28 22:46:14,584 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 22:46:14,591 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 22:46:14,591 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 22:46:14,597 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-28 22:46:14,597 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-28 22:46:14,597 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 22:46:14,640 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 22:46:14,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 22:46:14,641 INFO L168 Benchmark]: Toolchain (without parser) took 4077.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 951.3 MB in the beginning and 982.8 MB in the end (delta: -31.4 MB). Peak memory consumption was 79.7 MB. Max. memory is 11.5 GB. [2018-11-28 22:46:14,643 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-11-28 22:46:14,643 INFO L168 Benchmark]: CACSL2BoogieTranslator took 571.18 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 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. [2018-11-28 22:46:14,644 INFO L168 Benchmark]: Boogie Preprocessor took 148.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-11-28 22:46:14,645 INFO L168 Benchmark]: RCFGBuilder took 829.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. [2018-11-28 22:46:14,646 INFO L168 Benchmark]: TraceAbstraction took 2461.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 982.8 MB in the end (delta: 75.0 MB). Peak memory consumption was 75.0 MB. Max. memory is 11.5 GB. [2018-11-28 22:46:14,647 INFO L168 Benchmark]: Witness Printer took 61.60 ms. Allocated memory is still 1.1 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:46:14,651 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 571.18 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 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 148.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 829.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2461.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 982.8 MB in the end (delta: 75.0 MB). Peak memory consumption was 75.0 MB. Max. memory is 11.5 GB. * Witness Printer took 61.60 ms. Allocated memory is still 1.1 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 629]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 619]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 629]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 630]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 631]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 631]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 631]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 631]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 630]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 9 error locations. SAFE Result, 2.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 SDtfs, 35 SDslu, 51 SDs, 0 SdLazy, 71 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 2215 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...