./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/memsafety/test-0158_false-valid-free.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_false-valid-free.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 988613cde5038d59f240babca0a9fb7bbef562e6 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 22:44:53,700 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 22:44:53,702 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 22:44:53,715 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 22:44:53,715 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 22:44:53,716 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 22:44:53,718 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 22:44:53,720 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 22:44:53,721 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 22:44:53,722 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 22:44:53,723 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 22:44:53,723 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 22:44:53,724 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 22:44:53,726 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 22:44:53,727 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 22:44:53,728 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 22:44:53,729 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 22:44:53,731 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 22:44:53,733 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 22:44:53,734 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 22:44:53,735 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 22:44:53,737 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 22:44:53,739 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 22:44:53,740 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 22:44:53,740 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 22:44:53,741 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 22:44:53,742 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 22:44:53,743 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 22:44:53,744 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 22:44:53,745 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 22:44:53,745 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 22:44:53,746 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 22:44:53,747 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 22:44:53,747 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 22:44:53,748 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 22:44:53,748 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 22:44:53,749 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 22:44:53,765 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 22:44:53,765 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 22:44:53,766 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 22:44:53,766 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 22:44:53,766 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 22:44:53,766 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 22:44:53,767 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 22:44:53,768 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 22:44:53,768 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 22:44:53,768 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 22:44:53,768 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 22:44:53,768 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 22:44:53,768 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 22:44:53,769 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 22:44:53,769 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 22:44:53,769 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 22:44:53,769 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 22:44:53,769 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 22:44:53,769 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 22:44:53,770 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 22:44:53,771 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 22:44:53,771 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 22:44:53,771 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 22:44:53,772 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:44:53,772 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 22:44:53,772 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 22:44:53,772 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 22:44:53,772 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 22:44:53,772 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 -> 988613cde5038d59f240babca0a9fb7bbef562e6 [2018-11-28 22:44:53,809 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 22:44:53,822 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 22:44:53,826 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 22:44:53,827 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 22:44:53,828 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 22:44:53,829 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/memsafety/test-0158_false-valid-free.i [2018-11-28 22:44:53,883 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e213ab70c/024de7264b3241b3ba1559d316b12fde/FLAG1476d151a [2018-11-28 22:44:54,459 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 22:44:54,459 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/memsafety/test-0158_false-valid-free.i [2018-11-28 22:44:54,477 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e213ab70c/024de7264b3241b3ba1559d316b12fde/FLAG1476d151a [2018-11-28 22:44:54,680 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e213ab70c/024de7264b3241b3ba1559d316b12fde [2018-11-28 22:44:54,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 22:44:54,687 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 22:44:54,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 22:44:54,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 22:44:54,694 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 22:44:54,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:44:54" (1/1) ... [2018-11-28 22:44:54,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22199964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:54, skipping insertion in model container [2018-11-28 22:44:54,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:44:54" (1/1) ... [2018-11-28 22:44:54,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 22:44:54,766 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 22:44:55,164 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:44:55,171 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 22:44:55,250 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:44:55,434 INFO L195 MainTranslator]: Completed translation [2018-11-28 22:44:55,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:55 WrapperNode [2018-11-28 22:44:55,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 22:44:55,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 22:44:55,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 22:44:55,436 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 22:44:55,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:55" (1/1) ... [2018-11-28 22:44:55,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:55" (1/1) ... [2018-11-28 22:44:55,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:55" (1/1) ... [2018-11-28 22:44:55,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:55" (1/1) ... [2018-11-28 22:44:55,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:55" (1/1) ... [2018-11-28 22:44:55,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:55" (1/1) ... [2018-11-28 22:44:55,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:55" (1/1) ... [2018-11-28 22:44:55,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 22:44:55,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 22:44:55,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 22:44:55,507 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 22:44:55,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:55" (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 22:44:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 22:44:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 22:44:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 22:44:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 22:44:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 22:44:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 22:44:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 22:44:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 22:44:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 22:44:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 22:44:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 22:44:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 22:44:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 22:44:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 22:44:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 22:44:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 22:44:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 22:44:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 22:44:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 22:44:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 22:44:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 22:44:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 22:44:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 22:44:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 22:44:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 22:44:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 22:44:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 22:44:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 22:44:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 22:44:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 22:44:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 22:44:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 22:44:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 22:44:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 22:44:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 22:44:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 22:44:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 22:44:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 22:44:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 22:44:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 22:44:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 22:44:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 22:44:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 22:44:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 22:44:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 22:44:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 22:44:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 22:44:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 22:44:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 22:44:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 22:44:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 22:44:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 22:44:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 22:44:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 22:44:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 22:44:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 22:44:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 22:44:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 22:44:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 22:44:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 22:44:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 22:44:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 22:44:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 22:44:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 22:44:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 22:44:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 22:44:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 22:44:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 22:44:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 22:44:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 22:44:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 22:44:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 22:44:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 22:44:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 22:44:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 22:44:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 22:44:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 22:44:55,590 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 22:44:55,590 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 22:44:55,590 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 22:44:55,590 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 22:44:55,590 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 22:44:55,590 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 22:44:55,590 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 22:44:55,591 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 22:44:55,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 22:44:55,591 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 22:44:55,591 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 22:44:55,591 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 22:44:55,591 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 22:44:55,591 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 22:44:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 22:44:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 22:44:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 22:44:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 22:44:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 22:44:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 22:44:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 22:44:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 22:44:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 22:44:55,593 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 22:44:55,593 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 22:44:55,593 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 22:44:55,593 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 22:44:55,593 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 22:44:55,593 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2018-11-28 22:44:55,593 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2018-11-28 22:44:55,594 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2018-11-28 22:44:55,594 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2018-11-28 22:44:55,594 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2018-11-28 22:44:55,594 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2018-11-28 22:44:55,594 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2018-11-28 22:44:55,594 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2018-11-28 22:44:55,594 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2018-11-28 22:44:55,594 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2018-11-28 22:44:55,595 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2018-11-28 22:44:55,595 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2018-11-28 22:44:55,595 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2018-11-28 22:44:55,595 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2018-11-28 22:44:55,595 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2018-11-28 22:44:55,595 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2018-11-28 22:44:55,595 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2018-11-28 22:44:55,595 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2018-11-28 22:44:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2018-11-28 22:44:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2018-11-28 22:44:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2018-11-28 22:44:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2018-11-28 22:44:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2018-11-28 22:44:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2018-11-28 22:44:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2018-11-28 22:44:55,597 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2018-11-28 22:44:55,597 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2018-11-28 22:44:55,597 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2018-11-28 22:44:55,597 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2018-11-28 22:44:55,597 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2018-11-28 22:44:55,597 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2018-11-28 22:44:55,597 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2018-11-28 22:44:55,597 INFO L130 BoogieDeclarations]: Found specification of procedure __bzero [2018-11-28 22:44:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2018-11-28 22:44:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2018-11-28 22:44:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2018-11-28 22:44:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure index [2018-11-28 22:44:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2018-11-28 22:44:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2018-11-28 22:44:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2018-11-28 22:44:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2018-11-28 22:44:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2018-11-28 22:44:55,599 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2018-11-28 22:44:55,599 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2018-11-28 22:44:55,599 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2018-11-28 22:44:55,599 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2018-11-28 22:44:55,599 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2018-11-28 22:44:55,599 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 22:44:55,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 22:44:55,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 22:44:55,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 22:44:55,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 22:44:55,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 22:44:55,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 22:44:55,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 22:44:55,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 22:44:56,257 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 22:44:56,258 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 22:44:56,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:44:56 BoogieIcfgContainer [2018-11-28 22:44:56,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 22:44:56,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 22:44:56,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 22:44:56,264 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 22:44:56,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:44:54" (1/3) ... [2018-11-28 22:44:56,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45791260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:44:56, skipping insertion in model container [2018-11-28 22:44:56,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:55" (2/3) ... [2018-11-28 22:44:56,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45791260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:44:56, skipping insertion in model container [2018-11-28 22:44:56,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:44:56" (3/3) ... [2018-11-28 22:44:56,271 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-free.i [2018-11-28 22:44:56,284 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 22:44:56,299 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-11-28 22:44:56,319 INFO L257 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2018-11-28 22:44:56,355 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 22:44:56,356 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 22:44:56,356 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 22:44:56,356 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 22:44:56,357 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 22:44:56,357 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 22:44:56,357 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 22:44:56,357 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 22:44:56,357 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 22:44:56,377 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-11-28 22:44:56,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 22:44:56,387 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:56,388 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:56,391 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 22:44:56,397 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:56,397 INFO L82 PathProgramCache]: Analyzing trace with hash 80096419, now seen corresponding path program 1 times [2018-11-28 22:44:56,399 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:56,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:56,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:56,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:56,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:56,592 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 22:44:56,595 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:56,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:44:56,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:44:56,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:44:56,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:44:56,616 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 3 states. [2018-11-28 22:44:56,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:56,945 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2018-11-28 22:44:56,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:44:56,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 22:44:56,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:56,958 INFO L225 Difference]: With dead ends: 30 [2018-11-28 22:44:56,958 INFO L226 Difference]: Without dead ends: 27 [2018-11-28 22:44:56,960 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 22:44:56,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-28 22:44:56,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-28 22:44:56,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-28 22:44:56,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-11-28 22:44:57,001 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 7 [2018-11-28 22:44:57,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:57,001 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-11-28 22:44:57,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:44:57,002 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-11-28 22:44:57,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 22:44:57,002 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:57,002 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:57,003 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 22:44:57,003 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:57,003 INFO L82 PathProgramCache]: Analyzing trace with hash 80096420, now seen corresponding path program 1 times [2018-11-28 22:44:57,003 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:57,003 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:57,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:57,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:57,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:57,117 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 22:44:57,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:57,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:44:57,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:44:57,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:44:57,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:44:57,120 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 3 states. [2018-11-28 22:44:57,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:57,226 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-11-28 22:44:57,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:44:57,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 22:44:57,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:57,229 INFO L225 Difference]: With dead ends: 22 [2018-11-28 22:44:57,229 INFO L226 Difference]: Without dead ends: 22 [2018-11-28 22:44:57,230 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 22:44:57,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-28 22:44:57,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-28 22:44:57,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-28 22:44:57,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2018-11-28 22:44:57,234 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 7 [2018-11-28 22:44:57,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:57,235 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2018-11-28 22:44:57,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:44:57,235 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2018-11-28 22:44:57,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 22:44:57,236 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:57,236 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:57,236 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 22:44:57,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:57,237 INFO L82 PathProgramCache]: Analyzing trace with hash -286770775, now seen corresponding path program 1 times [2018-11-28 22:44:57,237 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:57,237 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:57,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:57,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:57,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:57,412 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 22:44:57,413 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:57,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:44:57,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:44:57,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:44:57,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:44:57,414 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 5 states. [2018-11-28 22:44:57,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:57,628 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2018-11-28 22:44:57,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:44:57,629 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-11-28 22:44:57,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:57,630 INFO L225 Difference]: With dead ends: 21 [2018-11-28 22:44:57,630 INFO L226 Difference]: Without dead ends: 21 [2018-11-28 22:44:57,630 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 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 22:44:57,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-28 22:44:57,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-28 22:44:57,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-28 22:44:57,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2018-11-28 22:44:57,634 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 13 [2018-11-28 22:44:57,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:57,634 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2018-11-28 22:44:57,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:44:57,635 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2018-11-28 22:44:57,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 22:44:57,635 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:57,636 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:57,636 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 22:44:57,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:57,636 INFO L82 PathProgramCache]: Analyzing trace with hash -299959381, now seen corresponding path program 1 times [2018-11-28 22:44:57,637 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:57,637 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:57,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:57,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:57,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:58,125 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 22:44:58,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:58,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:44:58,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:44:58,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:44:58,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:44:58,127 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 5 states. [2018-11-28 22:44:58,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:58,343 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2018-11-28 22:44:58,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:44:58,343 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-28 22:44:58,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:58,344 INFO L225 Difference]: With dead ends: 20 [2018-11-28 22:44:58,344 INFO L226 Difference]: Without dead ends: 20 [2018-11-28 22:44:58,345 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-28 22:44:58,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-28 22:44:58,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-28 22:44:58,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-28 22:44:58,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2018-11-28 22:44:58,348 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 14 [2018-11-28 22:44:58,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:58,349 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2018-11-28 22:44:58,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:44:58,349 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2018-11-28 22:44:58,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 22:44:58,349 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:58,350 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:58,350 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 22:44:58,350 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:58,350 INFO L82 PathProgramCache]: Analyzing trace with hash -708806165, now seen corresponding path program 1 times [2018-11-28 22:44:58,350 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:58,351 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:58,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:58,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:58,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:58,556 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 22:44:58,556 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:58,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 22:44:58,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 22:44:58,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 22:44:58,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:44:58,558 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 6 states. [2018-11-28 22:44:58,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:58,678 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2018-11-28 22:44:58,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 22:44:58,678 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-11-28 22:44:58,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:58,680 INFO L225 Difference]: With dead ends: 19 [2018-11-28 22:44:58,680 INFO L226 Difference]: Without dead ends: 19 [2018-11-28 22:44:58,680 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-28 22:44:58,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-28 22:44:58,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-28 22:44:58,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-28 22:44:58,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2018-11-28 22:44:58,684 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 15 [2018-11-28 22:44:58,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:58,684 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2018-11-28 22:44:58,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 22:44:58,684 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2018-11-28 22:44:58,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 22:44:58,685 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:58,685 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:58,685 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 22:44:58,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:58,686 INFO L82 PathProgramCache]: Analyzing trace with hash -498154579, now seen corresponding path program 1 times [2018-11-28 22:44:58,686 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:58,686 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:58,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:58,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:58,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:44:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:44:58,764 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 22:44:58,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:44:58 BoogieIcfgContainer [2018-11-28 22:44:58,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 22:44:58,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 22:44:58,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 22:44:58,793 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 22:44:58,794 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:44:56" (3/4) ... [2018-11-28 22:44:58,796 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 22:44:58,846 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 22:44:58,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 22:44:58,847 INFO L168 Benchmark]: Toolchain (without parser) took 4160.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 946.0 MB in the beginning and 993.0 MB in the end (delta: -47.0 MB). Peak memory consumption was 91.9 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:58,849 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:44:58,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:58,851 INFO L168 Benchmark]: Boogie Preprocessor took 71.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:58,851 INFO L168 Benchmark]: RCFGBuilder took 751.82 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: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:58,852 INFO L168 Benchmark]: TraceAbstraction took 2532.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.0 MB in the end (delta: 81.1 MB). Peak memory consumption was 81.1 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:58,853 INFO L168 Benchmark]: Witness Printer took 53.75 ms. Allocated memory is still 1.2 GB. Free memory is still 993.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:44:58,858 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 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 745.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 71.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 751.82 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: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2532.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.0 MB in the end (delta: 81.1 MB). Peak memory consumption was 81.1 MB. Max. memory is 11.5 GB. * Witness Printer took 53.75 ms. Allocated memory is still 1.2 GB. Free memory is still 993.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 755]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L742-L749] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L750] data.p0 = malloc(37U) VAL [data={40:0}, malloc(37U)={38:0}] [L751] data.str.p2 = &data VAL [data={40:0}, malloc(37U)={38:0}] [L752] EXPR data.p0 VAL [data={40:0}, data.p0={38:0}, malloc(37U)={38:0}] [L752] void *ptr = data.p0; [L753] data.str.c[1] = sizeof data.str.p1 VAL [data={40:0}, malloc(37U)={38:0}, ptr={38:0}] [L754] EXPR data.p0 VAL [data={40:0}, data.p0={38:0}, malloc(37U)={38:0}, ptr={38:0}] [L754] free(data.p0) VAL [data={40:0}, data.p0={38:0}, malloc(37U)={38:0}, ptr={38:0}] [L754] free(data.p0) [L755] free(ptr) VAL [data={40:0}, malloc(37U)={38:0}, ptr={38:0}] [L755] free(ptr) VAL [data={40:0}, malloc(37U)={38:0}, ptr={38:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 35 locations, 15 error locations. UNSAFE Result, 2.4s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 71 SDslu, 82 SDs, 0 SdLazy, 87 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 2866 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 incorrect! Received shutdown request...