./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/list-properties/splice_true-unreach-call_false-valid-memtrack.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/list-properties/splice_true-unreach-call_false-valid-memtrack.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 bab7ebbfb2d1b8a4018ae99e314147bb3726df4b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/list-properties/splice_true-unreach-call_false-valid-memtrack.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 bab7ebbfb2d1b8a4018ae99e314147bb3726df4b ............................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 22:54:40,654 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 22:54:40,655 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 22:54:40,671 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 22:54:40,672 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 22:54:40,674 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 22:54:40,676 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 22:54:40,679 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 22:54:40,681 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 22:54:40,688 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 22:54:40,691 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 22:54:40,692 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 22:54:40,693 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 22:54:40,699 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 22:54:40,700 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 22:54:40,701 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 22:54:40,701 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 22:54:40,708 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 22:54:40,713 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 22:54:40,715 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 22:54:40,717 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 22:54:40,721 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 22:54:40,726 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 22:54:40,727 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 22:54:40,727 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 22:54:40,728 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 22:54:40,729 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 22:54:40,733 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 22:54:40,735 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 22:54:40,736 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 22:54:40,738 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 22:54:40,739 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 22:54:40,739 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 22:54:40,739 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 22:54:40,742 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 22:54:40,743 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 22:54:40,745 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 22:54:40,768 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 22:54:40,769 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 22:54:40,770 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 22:54:40,773 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 22:54:40,775 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 22:54:40,776 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 22:54:40,776 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 22:54:40,776 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 22:54:40,777 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 22:54:40,777 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 22:54:40,777 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 22:54:40,777 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 22:54:40,777 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 22:54:40,779 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 22:54:40,779 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 22:54:40,780 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 22:54:40,780 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 22:54:40,780 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 22:54:40,780 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 22:54:40,780 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 22:54:40,781 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 22:54:40,783 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 22:54:40,783 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 22:54:40,783 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:54:40,784 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 22:54:40,784 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 22:54:40,784 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 22:54:40,784 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 22:54:40,784 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 -> bab7ebbfb2d1b8a4018ae99e314147bb3726df4b [2018-11-28 22:54:40,843 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 22:54:40,861 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 22:54:40,866 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 22:54:40,868 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 22:54:40,868 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 22:54:40,869 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/list-properties/splice_true-unreach-call_false-valid-memtrack.i [2018-11-28 22:54:40,930 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b4d0627/c69a0452b9d64438861b0a355f36923c/FLAG6a5cd2187 [2018-11-28 22:54:41,484 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 22:54:41,485 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/list-properties/splice_true-unreach-call_false-valid-memtrack.i [2018-11-28 22:54:41,499 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b4d0627/c69a0452b9d64438861b0a355f36923c/FLAG6a5cd2187 [2018-11-28 22:54:41,770 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b4d0627/c69a0452b9d64438861b0a355f36923c [2018-11-28 22:54:41,776 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 22:54:41,778 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 22:54:41,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 22:54:41,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 22:54:41,786 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 22:54:41,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:54:41" (1/1) ... [2018-11-28 22:54:41,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cb44fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:41, skipping insertion in model container [2018-11-28 22:54:41,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:54:41" (1/1) ... [2018-11-28 22:54:41,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 22:54:41,850 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 22:54:42,241 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:54:42,254 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 22:54:42,376 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:54:42,441 INFO L195 MainTranslator]: Completed translation [2018-11-28 22:54:42,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:42 WrapperNode [2018-11-28 22:54:42,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 22:54:42,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 22:54:42,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 22:54:42,442 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 22:54:42,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:42" (1/1) ... [2018-11-28 22:54:42,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:42" (1/1) ... [2018-11-28 22:54:42,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:42" (1/1) ... [2018-11-28 22:54:42,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:42" (1/1) ... [2018-11-28 22:54:42,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:42" (1/1) ... [2018-11-28 22:54:42,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:42" (1/1) ... [2018-11-28 22:54:42,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:42" (1/1) ... [2018-11-28 22:54:42,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 22:54:42,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 22:54:42,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 22:54:42,511 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 22:54:42,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:42" (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 22:54:42,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 22:54:42,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 22:54:42,569 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2018-11-28 22:54:42,570 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 22:54:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 22:54:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 22:54:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 22:54:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 22:54:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 22:54:42,571 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 22:54:42,571 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 22:54:42,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 22:54:42,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 22:54:42,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 22:54:42,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 22:54:42,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 22:54:42,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 22:54:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 22:54:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 22:54:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 22:54:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 22:54:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 22:54:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 22:54:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 22:54:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 22:54:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 22:54:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 22:54:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 22:54:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 22:54:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 22:54:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 22:54:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 22:54:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 22:54:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 22:54:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 22:54:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 22:54:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 22:54:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 22:54:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 22:54:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 22:54:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 22:54:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 22:54:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 22:54:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 22:54:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 22:54:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 22:54:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 22:54:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 22:54:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 22:54:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 22:54:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 22:54:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 22:54:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 22:54:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 22:54:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 22:54:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 22:54:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 22:54:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 22:54:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 22:54:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 22:54:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 22:54:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 22:54:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 22:54:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 22:54:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 22:54:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 22:54:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 22:54:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 22:54:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 22:54:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 22:54:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 22:54:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 22:54:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 22:54:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 22:54:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 22:54:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 22:54:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 22:54:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 22:54:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 22:54:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 22:54:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 22:54:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 22:54:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 22:54:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 22:54:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 22:54:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 22:54:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 22:54:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 22:54:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 22:54:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 22:54:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 22:54:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 22:54:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 22:54:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 22:54:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 22:54:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 22:54:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 22:54:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 22:54:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 22:54:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 22:54:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 22:54:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 22:54:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 22:54:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 22:54:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 22:54:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 22:54:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 22:54:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2018-11-28 22:54:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 22:54:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 22:54:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 22:54:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 22:54:42,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 22:54:42,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 22:54:42,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 22:54:42,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 22:54:42,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 22:54:43,587 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 22:54:43,587 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 22:54:43,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:54:43 BoogieIcfgContainer [2018-11-28 22:54:43,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 22:54:43,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 22:54:43,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 22:54:43,592 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 22:54:43,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:54:41" (1/3) ... [2018-11-28 22:54:43,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df5fcd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:54:43, skipping insertion in model container [2018-11-28 22:54:43,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:42" (2/3) ... [2018-11-28 22:54:43,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df5fcd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:54:43, skipping insertion in model container [2018-11-28 22:54:43,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:54:43" (3/3) ... [2018-11-28 22:54:43,596 INFO L112 eAbstractionObserver]: Analyzing ICFG splice_true-unreach-call_false-valid-memtrack.i [2018-11-28 22:54:43,606 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 22:54:43,615 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2018-11-28 22:54:43,634 INFO L257 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2018-11-28 22:54:43,662 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 22:54:43,663 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 22:54:43,663 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 22:54:43,663 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 22:54:43,664 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 22:54:43,664 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 22:54:43,664 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 22:54:43,664 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 22:54:43,664 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 22:54:43,685 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2018-11-28 22:54:43,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 22:54:43,696 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:54:43,698 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:54:43,700 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2018-11-28 22:54:43,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:54:43,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1188482441, now seen corresponding path program 1 times [2018-11-28 22:54:43,709 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:54:43,710 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:54:43,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:54:43,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:54:43,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:54:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:54:43,863 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 22:54:43,867 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:54:43,868 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:54:43,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 22:54:43,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 22:54:43,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 22:54:43,893 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2018-11-28 22:54:43,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:54:43,918 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2018-11-28 22:54:43,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 22:54:43,919 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-28 22:54:43,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:54:43,930 INFO L225 Difference]: With dead ends: 83 [2018-11-28 22:54:43,930 INFO L226 Difference]: Without dead ends: 75 [2018-11-28 22:54:43,932 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 22:54:43,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-28 22:54:43,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-11-28 22:54:43,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-11-28 22:54:43,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 81 transitions. [2018-11-28 22:54:43,972 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 81 transitions. Word has length 10 [2018-11-28 22:54:43,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:54:43,972 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 81 transitions. [2018-11-28 22:54:43,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 22:54:43,973 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 81 transitions. [2018-11-28 22:54:43,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 22:54:43,973 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:54:43,973 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:54:43,974 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2018-11-28 22:54:43,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:54:43,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1811785646, now seen corresponding path program 1 times [2018-11-28 22:54:43,974 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:54:43,975 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:54:43,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:54:43,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:54:43,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:54:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:54:44,156 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 22:54:44,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:54:44,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 22:54:44,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 22:54:44,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 22:54:44,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 22:54:44,160 INFO L87 Difference]: Start difference. First operand 75 states and 81 transitions. Second operand 4 states. [2018-11-28 22:54:44,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:54:44,587 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2018-11-28 22:54:44,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 22:54:44,588 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-28 22:54:44,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:54:44,591 INFO L225 Difference]: With dead ends: 82 [2018-11-28 22:54:44,591 INFO L226 Difference]: Without dead ends: 82 [2018-11-28 22:54:44,592 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:54:44,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-11-28 22:54:44,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 76. [2018-11-28 22:54:44,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-28 22:54:44,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2018-11-28 22:54:44,602 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 88 transitions. Word has length 11 [2018-11-28 22:54:44,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:54:44,602 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 88 transitions. [2018-11-28 22:54:44,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 22:54:44,602 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 88 transitions. [2018-11-28 22:54:44,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 22:54:44,603 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:54:44,603 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:54:44,603 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2018-11-28 22:54:44,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:54:44,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1811785645, now seen corresponding path program 1 times [2018-11-28 22:54:44,604 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:54:44,604 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:54:44,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:54:44,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:54:44,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:54:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:54:44,681 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 22:54:44,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:54:44,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 22:54:44,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 22:54:44,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 22:54:44,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 22:54:44,683 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. Second operand 4 states. [2018-11-28 22:54:45,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:54:45,188 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2018-11-28 22:54:45,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 22:54:45,189 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-28 22:54:45,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:54:45,190 INFO L225 Difference]: With dead ends: 90 [2018-11-28 22:54:45,190 INFO L226 Difference]: Without dead ends: 90 [2018-11-28 22:54:45,191 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:54:45,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-11-28 22:54:45,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 83. [2018-11-28 22:54:45,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-11-28 22:54:45,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 92 transitions. [2018-11-28 22:54:45,210 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 92 transitions. Word has length 11 [2018-11-28 22:54:45,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:54:45,210 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 92 transitions. [2018-11-28 22:54:45,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 22:54:45,210 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 92 transitions. [2018-11-28 22:54:45,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 22:54:45,211 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:54:45,211 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:54:45,212 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2018-11-28 22:54:45,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:54:45,213 INFO L82 PathProgramCache]: Analyzing trace with hash -52140124, now seen corresponding path program 1 times [2018-11-28 22:54:45,213 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:54:45,213 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:54:45,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:54:45,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:54:45,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:54:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:54:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:54:45,319 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 22:54:45,345 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 22:54:45,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:54:45 BoogieIcfgContainer [2018-11-28 22:54:45,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 22:54:45,360 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 22:54:45,361 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 22:54:45,361 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 22:54:45,361 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:54:43" (3/4) ... [2018-11-28 22:54:45,365 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 22:54:45,366 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 22:54:45,366 INFO L168 Benchmark]: Toolchain (without parser) took 3589.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 948.7 MB in the beginning and 949.7 MB in the end (delta: -1.1 MB). Peak memory consumption was 92.3 MB. Max. memory is 11.5 GB. [2018-11-28 22:54:45,369 INFO L168 Benchmark]: CDTParser took 0.15 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 22:54:45,369 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -123.4 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. [2018-11-28 22:54:45,370 INFO L168 Benchmark]: Boogie Preprocessor took 68.50 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:54:45,371 INFO L168 Benchmark]: RCFGBuilder took 1077.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.1 MB). Peak memory consumption was 53.1 MB. Max. memory is 11.5 GB. [2018-11-28 22:54:45,372 INFO L168 Benchmark]: TraceAbstraction took 1771.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 949.7 MB in the end (delta: 69.3 MB). Peak memory consumption was 69.3 MB. Max. memory is 11.5 GB. [2018-11-28 22:54:45,372 INFO L168 Benchmark]: Witness Printer took 5.29 ms. Allocated memory is still 1.1 GB. Free memory is still 949.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:54:45,377 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 662.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -123.4 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.50 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1077.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.1 MB). Peak memory consumption was 53.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1771.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 949.7 MB in the end (delta: 69.3 MB). Peak memory consumption was 69.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.29 ms. Allocated memory is still 1.1 GB. Free memory is still 949.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 626]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 626. Possible FailurePath: [L627] int flag = 1; [L628] List a = (List) malloc(sizeof(struct node)); VAL [a={12:0}, flag=1, malloc(sizeof(struct node))={12:0}] [L629] COND FALSE !(a == 0) VAL [a={12:0}, flag=1, malloc(sizeof(struct node))={12:0}] [L630] List t; [L631] List l1; [L632] List l2; [L633] List b; [L634] List u; [L635] List p = a; VAL [a={12:0}, flag=1, malloc(sizeof(struct node))={12:0}, p={12:0}] [L636] COND FALSE !(__VERIFIER_nondet_int()) [L649] p->h = 3 VAL [a={12:0}, flag=1, malloc(sizeof(struct node))={12:0}, p={12:0}] [L650] EXPR a->h VAL [a={12:0}, a->h=3, flag=1, malloc(sizeof(struct node))={12:0}, p={12:0}] [L650] COND TRUE a->h == 3 [L650] return 0; VAL [\result=0, a={12:0}, flag=1, malloc(sizeof(struct node))={12:0}, p={12:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 85 locations, 29 error locations. UNSAFE Result, 1.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 171 SDtfs, 219 SDslu, 50 SDs, 0 SdLazy, 148 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred 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, 3 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 881 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 22:54:47,821 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 22:54:47,823 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 22:54:47,835 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 22:54:47,836 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 22:54:47,837 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 22:54:47,839 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 22:54:47,841 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 22:54:47,842 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 22:54:47,843 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 22:54:47,844 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 22:54:47,845 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 22:54:47,846 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 22:54:47,847 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 22:54:47,849 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 22:54:47,849 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 22:54:47,850 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 22:54:47,852 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 22:54:47,855 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 22:54:47,857 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 22:54:47,858 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 22:54:47,859 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 22:54:47,862 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 22:54:47,862 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 22:54:47,862 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 22:54:47,863 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 22:54:47,864 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 22:54:47,865 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 22:54:47,866 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 22:54:47,867 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 22:54:47,868 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 22:54:47,868 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 22:54:47,868 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 22:54:47,869 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 22:54:47,870 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 22:54:47,871 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 22:54:47,871 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2018-11-28 22:54:47,886 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 22:54:47,886 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 22:54:47,887 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 22:54:47,888 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 22:54:47,888 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 22:54:47,888 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 22:54:47,889 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 22:54:47,890 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 22:54:47,890 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 22:54:47,890 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 22:54:47,890 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 22:54:47,890 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 22:54:47,890 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 22:54:47,891 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 22:54:47,891 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 22:54:47,891 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 22:54:47,891 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 22:54:47,891 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 22:54:47,891 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 22:54:47,893 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 22:54:47,893 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 22:54:47,893 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 22:54:47,894 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 22:54:47,894 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 22:54:47,894 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 22:54:47,894 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:54:47,894 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 22:54:47,894 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 22:54:47,896 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 22:54:47,896 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 22:54:47,896 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 22:54:47,896 INFO L133 SettingsManager]: * Logic for external solver=AUFBV 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 -> bab7ebbfb2d1b8a4018ae99e314147bb3726df4b [2018-11-28 22:54:47,956 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 22:54:47,975 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 22:54:47,982 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 22:54:47,984 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 22:54:47,985 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 22:54:47,986 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/list-properties/splice_true-unreach-call_false-valid-memtrack.i [2018-11-28 22:54:48,064 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2f770a08/1f211a745d34451bb018850a1f4d4260/FLAGc0192cb73 [2018-11-28 22:54:48,603 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 22:54:48,604 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/list-properties/splice_true-unreach-call_false-valid-memtrack.i [2018-11-28 22:54:48,621 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2f770a08/1f211a745d34451bb018850a1f4d4260/FLAGc0192cb73 [2018-11-28 22:54:48,897 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2f770a08/1f211a745d34451bb018850a1f4d4260 [2018-11-28 22:54:48,900 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 22:54:48,902 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 22:54:48,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 22:54:48,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 22:54:48,908 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 22:54:48,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:54:48" (1/1) ... [2018-11-28 22:54:48,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4514ae40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:48, skipping insertion in model container [2018-11-28 22:54:48,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:54:48" (1/1) ... [2018-11-28 22:54:48,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 22:54:48,972 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 22:54:49,326 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:54:49,345 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 22:54:49,469 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:54:49,538 INFO L195 MainTranslator]: Completed translation [2018-11-28 22:54:49,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:49 WrapperNode [2018-11-28 22:54:49,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 22:54:49,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 22:54:49,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 22:54:49,539 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 22:54:49,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:49" (1/1) ... [2018-11-28 22:54:49,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:49" (1/1) ... [2018-11-28 22:54:49,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:49" (1/1) ... [2018-11-28 22:54:49,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:49" (1/1) ... [2018-11-28 22:54:49,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:49" (1/1) ... [2018-11-28 22:54:49,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:49" (1/1) ... [2018-11-28 22:54:49,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:49" (1/1) ... [2018-11-28 22:54:49,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 22:54:49,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 22:54:49,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 22:54:49,609 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 22:54:49,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:49" (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 22:54:49,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 22:54:49,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 22:54:49,678 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2018-11-28 22:54:49,678 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 22:54:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 22:54:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 22:54:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 22:54:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 22:54:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 22:54:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 22:54:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 22:54:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 22:54:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 22:54:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 22:54:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 22:54:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 22:54:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 22:54:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 22:54:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 22:54:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 22:54:49,681 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 22:54:49,681 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 22:54:49,681 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 22:54:49,681 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 22:54:49,681 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 22:54:49,681 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 22:54:49,681 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 22:54:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 22:54:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 22:54:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 22:54:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 22:54:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 22:54:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 22:54:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 22:54:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 22:54:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 22:54:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 22:54:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 22:54:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 22:54:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 22:54:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 22:54:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 22:54:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 22:54:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 22:54:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 22:54:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 22:54:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 22:54:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 22:54:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 22:54:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 22:54:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 22:54:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 22:54:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 22:54:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 22:54:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 22:54:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 22:54:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 22:54:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 22:54:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 22:54:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 22:54:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 22:54:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 22:54:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 22:54:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 22:54:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 22:54:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 22:54:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 22:54:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 22:54:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 22:54:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 22:54:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 22:54:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 22:54:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 22:54:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 22:54:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 22:54:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 22:54:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 22:54:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 22:54:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 22:54:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 22:54:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 22:54:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 22:54:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 22:54:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 22:54:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 22:54:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 22:54:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 22:54:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 22:54:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 22:54:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 22:54:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 22:54:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 22:54:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 22:54:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 22:54:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 22:54:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 22:54:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 22:54:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 22:54:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 22:54:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 22:54:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 22:54:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 22:54:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 22:54:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 22:54:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 22:54:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 22:54:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 22:54:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2018-11-28 22:54:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 22:54:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 22:54:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 22:54:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 22:54:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 22:54:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 22:54:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 22:54:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 22:54:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 22:54:50,800 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 22:54:50,801 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 22:54:50,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:54:50 BoogieIcfgContainer [2018-11-28 22:54:50,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 22:54:50,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 22:54:50,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 22:54:50,806 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 22:54:50,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:54:48" (1/3) ... [2018-11-28 22:54:50,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df3a151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:54:50, skipping insertion in model container [2018-11-28 22:54:50,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:54:49" (2/3) ... [2018-11-28 22:54:50,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df3a151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:54:50, skipping insertion in model container [2018-11-28 22:54:50,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:54:50" (3/3) ... [2018-11-28 22:54:50,810 INFO L112 eAbstractionObserver]: Analyzing ICFG splice_true-unreach-call_false-valid-memtrack.i [2018-11-28 22:54:50,820 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 22:54:50,828 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2018-11-28 22:54:50,842 INFO L257 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2018-11-28 22:54:50,871 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 22:54:50,872 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 22:54:50,872 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 22:54:50,872 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 22:54:50,874 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 22:54:50,875 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 22:54:50,875 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 22:54:50,875 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 22:54:50,875 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 22:54:50,895 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2018-11-28 22:54:50,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 22:54:50,907 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:54:50,908 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:54:50,912 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-28 22:54:50,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:54:50,924 INFO L82 PathProgramCache]: Analyzing trace with hash 468862059, now seen corresponding path program 1 times [2018-11-28 22:54:50,929 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:54:50,931 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 22:54:50,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:54:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:54:51,005 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:54:51,056 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-28 22:54:51,058 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:54:51,066 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:54:51,067 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-28 22:54:51,168 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 22:54:51,169 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 22:54:51,176 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:54:51,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 22:54:51,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 22:54:51,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 22:54:51,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 22:54:51,200 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 4 states. [2018-11-28 22:54:52,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:54:52,332 INFO L93 Difference]: Finished difference Result 89 states and 100 transitions. [2018-11-28 22:54:52,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 22:54:52,335 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-28 22:54:52,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:54:52,352 INFO L225 Difference]: With dead ends: 89 [2018-11-28 22:54:52,352 INFO L226 Difference]: Without dead ends: 80 [2018-11-28 22:54:52,356 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:54:52,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-11-28 22:54:52,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 74. [2018-11-28 22:54:52,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-28 22:54:52,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 86 transitions. [2018-11-28 22:54:52,428 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 86 transitions. Word has length 10 [2018-11-28 22:54:52,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:54:52,428 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 86 transitions. [2018-11-28 22:54:52,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 22:54:52,428 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 86 transitions. [2018-11-28 22:54:52,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 22:54:52,431 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:54:52,431 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:54:52,431 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-28 22:54:52,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:54:52,432 INFO L82 PathProgramCache]: Analyzing trace with hash 468862060, now seen corresponding path program 1 times [2018-11-28 22:54:52,433 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:54:52,434 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 22:54:52,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:54:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:54:52,511 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:54:52,538 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-28 22:54:52,538 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:54:52,617 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:54:52,617 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-28 22:54:52,840 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 22:54:52,843 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 22:54:52,848 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:54:52,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 22:54:52,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 22:54:52,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 22:54:52,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 22:54:52,852 INFO L87 Difference]: Start difference. First operand 74 states and 86 transitions. Second operand 4 states. [2018-11-28 22:54:53,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:54:53,611 INFO L93 Difference]: Finished difference Result 88 states and 97 transitions. [2018-11-28 22:54:53,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 22:54:53,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-28 22:54:53,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:54:53,615 INFO L225 Difference]: With dead ends: 88 [2018-11-28 22:54:53,615 INFO L226 Difference]: Without dead ends: 88 [2018-11-28 22:54:53,616 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:54:53,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-11-28 22:54:53,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 81. [2018-11-28 22:54:53,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-11-28 22:54:53,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2018-11-28 22:54:53,626 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 10 [2018-11-28 22:54:53,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:54:53,626 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2018-11-28 22:54:53,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 22:54:53,627 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2018-11-28 22:54:53,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 22:54:53,627 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:54:53,628 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:54:53,628 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-28 22:54:53,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:54:53,628 INFO L82 PathProgramCache]: Analyzing trace with hash 635983114, now seen corresponding path program 1 times [2018-11-28 22:54:53,629 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:54:53,629 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 22:54:53,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:54:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:54:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:54:53,769 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 22:54:53,796 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 22:54:53,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:54:53 BoogieIcfgContainer [2018-11-28 22:54:53,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 22:54:53,811 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 22:54:53,811 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 22:54:53,812 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 22:54:53,812 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:54:50" (3/4) ... [2018-11-28 22:54:53,817 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 22:54:53,817 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 22:54:53,818 INFO L168 Benchmark]: Toolchain (without parser) took 4916.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 954.0 MB in the beginning and 977.0 MB in the end (delta: -22.9 MB). Peak memory consumption was 120.2 MB. Max. memory is 11.5 GB. [2018-11-28 22:54:53,820 INFO L168 Benchmark]: CDTParser took 0.18 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 22:54:53,820 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -169.3 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. [2018-11-28 22:54:53,821 INFO L168 Benchmark]: Boogie Preprocessor took 68.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:54:53,822 INFO L168 Benchmark]: RCFGBuilder took 1193.31 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: 57.5 MB). Peak memory consumption was 57.5 MB. Max. memory is 11.5 GB. [2018-11-28 22:54:53,823 INFO L168 Benchmark]: TraceAbstraction took 3008.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.0 MB in the end (delta: 88.9 MB). Peak memory consumption was 88.9 MB. Max. memory is 11.5 GB. [2018-11-28 22:54:53,824 INFO L168 Benchmark]: Witness Printer took 5.76 ms. Allocated memory is still 1.2 GB. Free memory is still 977.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:54:53,828 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 635.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -169.3 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1193.31 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: 57.5 MB). Peak memory consumption was 57.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3008.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.0 MB in the end (delta: 88.9 MB). Peak memory consumption was 88.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.76 ms. Allocated memory is still 1.2 GB. Free memory is still 977.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 626]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 626. Possible FailurePath: [L627] int flag = 1; [L628] List a = (List) malloc(sizeof(struct node)); VAL [a={-2147483648:0}, flag=1, malloc(sizeof(struct node))={-2147483648:0}] [L629] COND FALSE !(a == 0) VAL [a={-2147483648:0}, flag=1, malloc(sizeof(struct node))={-2147483648:0}] [L630] List t; [L631] List l1; [L632] List l2; [L633] List b; [L634] List u; [L635] List p = a; VAL [a={-2147483648:0}, flag=1, malloc(sizeof(struct node))={-2147483648:0}, p={-2147483648:0}] [L636] COND FALSE !(__VERIFIER_nondet_int()) [L649] p->h = 3 VAL [a={-2147483648:0}, flag=1, malloc(sizeof(struct node))={-2147483648:0}, p={-2147483648:0}] [L650] EXPR a->h VAL [a={-2147483648:0}, a->h=3, flag=1, malloc(sizeof(struct node))={-2147483648:0}, p={-2147483648:0}] [L650] COND TRUE a->h == 3 [L650] return 0; VAL [\result=0, a={-2147483648:0}, flag=1, malloc(sizeof(struct node))={-2147483648:0}, p={-2147483648:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 84 locations, 29 error locations. UNSAFE Result, 2.9s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 86 SDtfs, 225 SDslu, 54 SDs, 0 SdLazy, 158 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred 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, 2 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 666 SizeOfPredicates, 6 NumberOfNonLiveVariables, 76 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...