./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 2e94e6aa 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 0.1.24-2e94e6a [2019-01-01 18:47:09,402 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 18:47:09,404 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 18:47:09,422 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 18:47:09,423 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 18:47:09,424 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 18:47:09,425 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 18:47:09,428 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 18:47:09,430 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 18:47:09,431 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 18:47:09,433 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 18:47:09,435 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 18:47:09,436 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 18:47:09,437 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 18:47:09,440 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 18:47:09,441 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 18:47:09,442 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 18:47:09,453 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 18:47:09,457 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 18:47:09,458 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 18:47:09,459 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 18:47:09,460 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 18:47:09,465 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 18:47:09,465 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 18:47:09,465 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 18:47:09,466 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 18:47:09,471 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 18:47:09,472 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 18:47:09,472 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 18:47:09,473 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 18:47:09,475 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 18:47:09,476 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 18:47:09,476 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 18:47:09,476 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 18:47:09,477 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 18:47:09,478 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 18:47:09,478 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-01 18:47:09,497 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 18:47:09,497 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 18:47:09,498 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 18:47:09,499 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 18:47:09,499 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 18:47:09,499 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 18:47:09,499 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 18:47:09,500 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 18:47:09,500 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 18:47:09,500 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 18:47:09,500 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 18:47:09,500 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-01 18:47:09,501 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-01 18:47:09,501 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-01 18:47:09,501 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 18:47:09,501 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 18:47:09,501 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 18:47:09,501 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 18:47:09,502 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 18:47:09,502 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 18:47:09,502 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 18:47:09,502 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 18:47:09,502 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 18:47:09,503 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 18:47:09,503 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 18:47:09,503 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 18:47:09,503 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 [2019-01-01 18:47:09,556 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 18:47:09,575 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 18:47:09,582 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 18:47:09,583 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 18:47:09,584 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 18:47:09,584 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/list-properties/splice_true-unreach-call_false-valid-memtrack.i [2019-01-01 18:47:09,660 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4db8192bd/55ae2559e9b14e0887545ca4eb200d68/FLAG1c6fad92e [2019-01-01 18:47:10,178 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 18:47:10,179 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/list-properties/splice_true-unreach-call_false-valid-memtrack.i [2019-01-01 18:47:10,196 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4db8192bd/55ae2559e9b14e0887545ca4eb200d68/FLAG1c6fad92e [2019-01-01 18:47:10,479 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4db8192bd/55ae2559e9b14e0887545ca4eb200d68 [2019-01-01 18:47:10,483 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 18:47:10,484 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-01 18:47:10,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 18:47:10,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 18:47:10,489 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 18:47:10,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 06:47:10" (1/1) ... [2019-01-01 18:47:10,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59db9926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:10, skipping insertion in model container [2019-01-01 18:47:10,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 06:47:10" (1/1) ... [2019-01-01 18:47:10,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 18:47:10,547 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 18:47:10,970 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 18:47:10,989 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 18:47:11,125 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 18:47:11,189 INFO L195 MainTranslator]: Completed translation [2019-01-01 18:47:11,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:11 WrapperNode [2019-01-01 18:47:11,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 18:47:11,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 18:47:11,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 18:47:11,190 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 18:47:11,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:11" (1/1) ... [2019-01-01 18:47:11,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:11" (1/1) ... [2019-01-01 18:47:11,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:11" (1/1) ... [2019-01-01 18:47:11,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:11" (1/1) ... [2019-01-01 18:47:11,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:11" (1/1) ... [2019-01-01 18:47:11,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:11" (1/1) ... [2019-01-01 18:47:11,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:11" (1/1) ... [2019-01-01 18:47:11,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 18:47:11,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 18:47:11,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 18:47:11,263 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 18:47:11,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 18:47:11,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-01 18:47:11,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 18:47:11,337 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-01-01 18:47:11,337 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-01 18:47:11,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-01-01 18:47:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-01-01 18:47:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-01-01 18:47:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-01-01 18:47:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-01-01 18:47:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-01-01 18:47:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-01-01 18:47:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-01-01 18:47:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-01-01 18:47:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-01-01 18:47:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-01-01 18:47:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-01-01 18:47:11,340 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-01-01 18:47:11,340 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-01-01 18:47:11,340 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-01-01 18:47:11,340 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-01-01 18:47:11,340 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-01-01 18:47:11,340 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-01-01 18:47:11,340 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-01-01 18:47:11,341 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-01-01 18:47:11,341 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-01-01 18:47:11,341 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-01-01 18:47:11,341 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-01-01 18:47:11,341 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-01-01 18:47:11,341 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-01-01 18:47:11,341 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-01-01 18:47:11,342 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-01-01 18:47:11,342 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-01-01 18:47:11,342 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-01-01 18:47:11,342 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-01-01 18:47:11,342 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-01-01 18:47:11,342 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-01-01 18:47:11,342 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-01-01 18:47:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-01-01 18:47:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-01-01 18:47:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-01-01 18:47:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-01-01 18:47:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-01-01 18:47:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-01-01 18:47:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-01-01 18:47:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-01-01 18:47:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-01-01 18:47:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-01-01 18:47:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-01-01 18:47:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-01-01 18:47:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-01-01 18:47:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-01-01 18:47:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-01-01 18:47:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-01-01 18:47:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-01-01 18:47:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-01-01 18:47:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-01-01 18:47:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-01-01 18:47:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-01-01 18:47:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-01-01 18:47:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-01-01 18:47:11,346 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-01-01 18:47:11,346 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-01-01 18:47:11,346 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-01-01 18:47:11,346 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-01-01 18:47:11,346 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-01-01 18:47:11,346 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-01-01 18:47:11,346 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-01-01 18:47:11,346 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-01-01 18:47:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-01-01 18:47:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-01-01 18:47:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2019-01-01 18:47:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-01-01 18:47:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-01-01 18:47:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-01-01 18:47:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-01-01 18:47:11,348 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-01-01 18:47:11,348 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-01-01 18:47:11,348 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-01-01 18:47:11,348 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-01-01 18:47:11,348 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-01-01 18:47:11,348 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-01-01 18:47:11,348 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-01-01 18:47:11,348 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-01-01 18:47:11,349 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-01-01 18:47:11,349 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-01-01 18:47:11,349 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-01-01 18:47:11,349 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-01-01 18:47:11,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-01-01 18:47:11,349 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-01-01 18:47:11,349 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-01-01 18:47:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-01-01 18:47:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-01-01 18:47:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-01-01 18:47:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-01-01 18:47:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-01-01 18:47:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-01-01 18:47:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-01-01 18:47:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-01-01 18:47:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-01-01 18:47:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-01-01 18:47:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-01-01 18:47:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-01-01 18:47:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-01-01 18:47:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-01-01 18:47:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-01-01 18:47:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-01-01 18:47:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-01-01 18:47:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-01-01 18:47:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-01 18:47:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-01-01 18:47:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 18:47:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-01-01 18:47:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-01-01 18:47:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-01 18:47:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-01 18:47:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 18:47:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 18:47:12,281 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 18:47:12,281 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-01 18:47:12,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 06:47:12 BoogieIcfgContainer [2019-01-01 18:47:12,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 18:47:12,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 18:47:12,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 18:47:12,287 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 18:47:12,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 06:47:10" (1/3) ... [2019-01-01 18:47:12,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cad0bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 06:47:12, skipping insertion in model container [2019-01-01 18:47:12,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:11" (2/3) ... [2019-01-01 18:47:12,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cad0bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 06:47:12, skipping insertion in model container [2019-01-01 18:47:12,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 06:47:12" (3/3) ... [2019-01-01 18:47:12,291 INFO L112 eAbstractionObserver]: Analyzing ICFG splice_true-unreach-call_false-valid-memtrack.i [2019-01-01 18:47:12,302 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 18:47:12,311 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2019-01-01 18:47:12,330 INFO L257 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2019-01-01 18:47:12,359 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 18:47:12,360 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 18:47:12,360 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-01 18:47:12,360 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 18:47:12,361 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 18:47:12,361 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 18:47:12,362 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 18:47:12,362 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 18:47:12,362 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 18:47:12,389 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2019-01-01 18:47:12,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-01 18:47:12,401 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 18:47:12,402 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 18:47:12,404 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2019-01-01 18:47:12,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 18:47:12,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1188482441, now seen corresponding path program 1 times [2019-01-01 18:47:12,413 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 18:47:12,414 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 18:47:12,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 18:47:12,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 18:47:12,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 18:47:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 18:47:12,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 18:47:12,561 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 18:47:12,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 18:47:12,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-01 18:47:12,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-01 18:47:12,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-01 18:47:12,585 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2019-01-01 18:47:12,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 18:47:12,607 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2019-01-01 18:47:12,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-01 18:47:12,609 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-01-01 18:47:12,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 18:47:12,618 INFO L225 Difference]: With dead ends: 83 [2019-01-01 18:47:12,618 INFO L226 Difference]: Without dead ends: 75 [2019-01-01 18:47:12,620 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 [2019-01-01 18:47:12,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-01-01 18:47:12,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2019-01-01 18:47:12,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-01-01 18:47:12,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 81 transitions. [2019-01-01 18:47:12,661 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 81 transitions. Word has length 10 [2019-01-01 18:47:12,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 18:47:12,661 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 81 transitions. [2019-01-01 18:47:12,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-01 18:47:12,661 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 81 transitions. [2019-01-01 18:47:12,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-01 18:47:12,662 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 18:47:12,662 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 18:47:12,663 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2019-01-01 18:47:12,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 18:47:12,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1811785646, now seen corresponding path program 1 times [2019-01-01 18:47:12,663 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 18:47:12,663 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 18:47:12,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 18:47:12,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 18:47:12,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 18:47:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 18:47:12,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 18:47:12,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 18:47:12,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 18:47:12,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 18:47:12,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 18:47:12,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 18:47:12,820 INFO L87 Difference]: Start difference. First operand 75 states and 81 transitions. Second operand 4 states. [2019-01-01 18:47:13,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 18:47:13,333 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2019-01-01 18:47:13,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 18:47:13,334 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-01-01 18:47:13,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 18:47:13,336 INFO L225 Difference]: With dead ends: 82 [2019-01-01 18:47:13,336 INFO L226 Difference]: Without dead ends: 82 [2019-01-01 18:47:13,337 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 [2019-01-01 18:47:13,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-01-01 18:47:13,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 76. [2019-01-01 18:47:13,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-01-01 18:47:13,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2019-01-01 18:47:13,359 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 88 transitions. Word has length 11 [2019-01-01 18:47:13,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 18:47:13,360 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 88 transitions. [2019-01-01 18:47:13,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 18:47:13,360 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 88 transitions. [2019-01-01 18:47:13,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-01 18:47:13,361 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 18:47:13,361 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 18:47:13,361 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2019-01-01 18:47:13,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 18:47:13,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1811785645, now seen corresponding path program 1 times [2019-01-01 18:47:13,364 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 18:47:13,364 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 18:47:13,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 18:47:13,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 18:47:13,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 18:47:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 18:47:13,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 18:47:13,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 18:47:13,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 18:47:13,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 18:47:13,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 18:47:13,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 18:47:13,612 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. Second operand 4 states. [2019-01-01 18:47:13,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 18:47:13,938 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2019-01-01 18:47:13,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 18:47:13,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-01-01 18:47:13,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 18:47:13,941 INFO L225 Difference]: With dead ends: 90 [2019-01-01 18:47:13,942 INFO L226 Difference]: Without dead ends: 90 [2019-01-01 18:47:13,943 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-01 18:47:13,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-01-01 18:47:13,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 83. [2019-01-01 18:47:13,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-01-01 18:47:13,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 92 transitions. [2019-01-01 18:47:13,951 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 92 transitions. Word has length 11 [2019-01-01 18:47:13,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 18:47:13,952 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 92 transitions. [2019-01-01 18:47:13,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 18:47:13,952 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 92 transitions. [2019-01-01 18:47:13,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-01-01 18:47:13,953 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 18:47:13,953 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 18:47:13,953 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2019-01-01 18:47:13,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 18:47:13,954 INFO L82 PathProgramCache]: Analyzing trace with hash -52140124, now seen corresponding path program 1 times [2019-01-01 18:47:13,954 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 18:47:13,954 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 18:47:13,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 18:47:13,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 18:47:13,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 18:47:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 18:47:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 18:47:14,038 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-01 18:47:14,050 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-01-01 18:47:14,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 06:47:14 BoogieIcfgContainer [2019-01-01 18:47:14,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 18:47:14,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 18:47:14,068 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 18:47:14,068 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 18:47:14,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 06:47:12" (3/4) ... [2019-01-01 18:47:14,073 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-01 18:47:14,073 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 18:47:14,074 INFO L168 Benchmark]: Toolchain (without parser) took 3590.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 954.1 MB in the beginning and 999.7 MB in the end (delta: -45.6 MB). Peak memory consumption was 103.8 MB. Max. memory is 11.5 GB. [2019-01-01 18:47:14,076 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. [2019-01-01 18:47:14,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 954.1 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. [2019-01-01 18:47:14,077 INFO L168 Benchmark]: Boogie Preprocessor took 72.74 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. [2019-01-01 18:47:14,078 INFO L168 Benchmark]: RCFGBuilder took 1019.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. [2019-01-01 18:47:14,079 INFO L168 Benchmark]: TraceAbstraction took 1783.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 999.7 MB in the end (delta: 72.9 MB). Peak memory consumption was 72.9 MB. Max. memory is 11.5 GB. [2019-01-01 18:47:14,080 INFO L168 Benchmark]: Witness Printer took 5.45 ms. Allocated memory is still 1.2 GB. Free memory is still 999.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 18:47:14,087 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 704.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 954.1 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.74 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 1019.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1783.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 999.7 MB in the end (delta: 72.9 MB). Peak memory consumption was 72.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.45 ms. Allocated memory is still 1.2 GB. Free memory is still 999.7 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={2:0}, flag=1, malloc(sizeof(struct node))={2:0}] [L629] COND FALSE !(a == 0) VAL [a={2:0}, flag=1, malloc(sizeof(struct node))={2:0}] [L630] List t; [L631] List l1; [L632] List l2; [L633] List b; [L634] List u; [L635] List p = a; VAL [a={2:0}, flag=1, malloc(sizeof(struct node))={2:0}, p={2:0}] [L636] COND FALSE !(__VERIFIER_nondet_int()) [L649] p->h = 3 VAL [a={2:0}, flag=1, malloc(sizeof(struct node))={2:0}, p={2:0}] [L650] EXPR a->h VAL [a={2:0}, a->h=3, flag=1, malloc(sizeof(struct node))={2:0}, p={2:0}] [L650] COND TRUE a->h == 3 [L650] return 0; VAL [\result=0, a={2:0}, flag=1, malloc(sizeof(struct node))={2:0}, p={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 85 locations, 29 error locations. UNSAFE Result, 1.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 171 SDtfs, 219 SDslu, 50 SDs, 0 SdLazy, 148 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s 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, 0.3s 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 0.1.24-2e94e6a [2019-01-01 18:47:16,536 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 18:47:16,538 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 18:47:16,550 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 18:47:16,551 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 18:47:16,552 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 18:47:16,553 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 18:47:16,555 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 18:47:16,559 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 18:47:16,560 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 18:47:16,561 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 18:47:16,561 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 18:47:16,562 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 18:47:16,563 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 18:47:16,564 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 18:47:16,565 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 18:47:16,566 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 18:47:16,568 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 18:47:16,570 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 18:47:16,572 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 18:47:16,573 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 18:47:16,574 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 18:47:16,577 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 18:47:16,577 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 18:47:16,577 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 18:47:16,578 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 18:47:16,579 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 18:47:16,580 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 18:47:16,581 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 18:47:16,582 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 18:47:16,583 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 18:47:16,584 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 18:47:16,584 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 18:47:16,584 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 18:47:16,585 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 18:47:16,586 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 18:47:16,586 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-01-01 18:47:16,607 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 18:47:16,608 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 18:47:16,609 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 18:47:16,610 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 18:47:16,610 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 18:47:16,611 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 18:47:16,611 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 18:47:16,611 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 18:47:16,611 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 18:47:16,611 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 18:47:16,612 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 18:47:16,612 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-01 18:47:16,612 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-01 18:47:16,612 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-01 18:47:16,612 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 18:47:16,612 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-01 18:47:16,613 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-01 18:47:16,615 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 18:47:16,615 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 18:47:16,615 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 18:47:16,615 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 18:47:16,615 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 18:47:16,616 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 18:47:16,617 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 18:47:16,617 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 18:47:16,618 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 18:47:16,618 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-01 18:47:16,618 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 18:47:16,619 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-01 18:47:16,620 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 [2019-01-01 18:47:16,675 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 18:47:16,694 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 18:47:16,699 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 18:47:16,702 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 18:47:16,704 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 18:47:16,704 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/list-properties/splice_true-unreach-call_false-valid-memtrack.i [2019-01-01 18:47:16,773 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dbc1fcf9/98db874be7f24f038b4d229d4ea03357/FLAG9cb984487 [2019-01-01 18:47:17,292 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 18:47:17,293 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/list-properties/splice_true-unreach-call_false-valid-memtrack.i [2019-01-01 18:47:17,309 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dbc1fcf9/98db874be7f24f038b4d229d4ea03357/FLAG9cb984487 [2019-01-01 18:47:17,580 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dbc1fcf9/98db874be7f24f038b4d229d4ea03357 [2019-01-01 18:47:17,583 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 18:47:17,584 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-01 18:47:17,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 18:47:17,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 18:47:17,594 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 18:47:17,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 06:47:17" (1/1) ... [2019-01-01 18:47:17,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7641ba95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:17, skipping insertion in model container [2019-01-01 18:47:17,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 06:47:17" (1/1) ... [2019-01-01 18:47:17,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 18:47:17,667 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 18:47:18,080 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 18:47:18,104 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 18:47:18,237 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 18:47:18,292 INFO L195 MainTranslator]: Completed translation [2019-01-01 18:47:18,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:18 WrapperNode [2019-01-01 18:47:18,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 18:47:18,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 18:47:18,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 18:47:18,294 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 18:47:18,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:18" (1/1) ... [2019-01-01 18:47:18,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:18" (1/1) ... [2019-01-01 18:47:18,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:18" (1/1) ... [2019-01-01 18:47:18,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:18" (1/1) ... [2019-01-01 18:47:18,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:18" (1/1) ... [2019-01-01 18:47:18,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:18" (1/1) ... [2019-01-01 18:47:18,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:18" (1/1) ... [2019-01-01 18:47:18,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 18:47:18,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 18:47:18,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 18:47:18,376 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 18:47:18,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 18:47:18,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-01 18:47:18,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 18:47:18,444 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-01-01 18:47:18,444 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-01 18:47:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-01-01 18:47:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-01-01 18:47:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-01-01 18:47:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-01-01 18:47:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-01-01 18:47:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-01-01 18:47:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-01-01 18:47:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-01-01 18:47:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-01-01 18:47:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-01-01 18:47:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-01-01 18:47:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-01-01 18:47:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-01-01 18:47:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-01-01 18:47:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-01-01 18:47:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-01-01 18:47:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-01-01 18:47:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-01-01 18:47:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-01-01 18:47:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-01-01 18:47:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-01-01 18:47:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-01-01 18:47:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-01-01 18:47:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-01-01 18:47:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-01-01 18:47:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-01-01 18:47:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-01-01 18:47:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-01-01 18:47:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-01-01 18:47:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-01-01 18:47:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-01-01 18:47:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-01-01 18:47:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-01-01 18:47:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-01-01 18:47:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-01-01 18:47:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-01-01 18:47:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-01-01 18:47:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-01-01 18:47:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-01-01 18:47:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-01-01 18:47:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-01-01 18:47:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-01-01 18:47:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-01-01 18:47:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-01-01 18:47:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-01-01 18:47:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-01-01 18:47:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-01-01 18:47:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-01-01 18:47:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-01-01 18:47:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-01-01 18:47:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-01-01 18:47:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-01-01 18:47:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-01-01 18:47:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-01-01 18:47:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-01-01 18:47:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-01-01 18:47:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-01-01 18:47:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-01-01 18:47:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-01-01 18:47:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-01-01 18:47:18,454 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-01-01 18:47:18,454 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-01-01 18:47:18,454 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-01-01 18:47:18,454 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-01-01 18:47:18,454 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-01-01 18:47:18,454 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-01-01 18:47:18,454 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2019-01-01 18:47:18,454 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-01-01 18:47:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-01-01 18:47:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-01-01 18:47:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-01-01 18:47:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-01-01 18:47:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-01-01 18:47:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-01-01 18:47:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-01-01 18:47:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-01-01 18:47:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-01-01 18:47:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-01-01 18:47:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-01-01 18:47:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-01-01 18:47:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-01-01 18:47:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-01-01 18:47:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-01-01 18:47:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-01-01 18:47:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-01-01 18:47:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-01-01 18:47:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-01-01 18:47:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-01-01 18:47:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-01-01 18:47:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-01-01 18:47:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-01-01 18:47:18,458 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-01-01 18:47:18,458 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-01-01 18:47:18,458 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-01-01 18:47:18,458 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-01-01 18:47:18,458 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-01-01 18:47:18,458 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-01-01 18:47:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-01-01 18:47:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-01-01 18:47:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-01-01 18:47:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-01-01 18:47:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-01-01 18:47:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-01-01 18:47:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-01-01 18:47:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-01 18:47:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-01-01 18:47:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-01-01 18:47:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-01-01 18:47:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-01-01 18:47:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-01-01 18:47:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-01 18:47:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 18:47:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 18:47:19,598 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 18:47:19,598 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-01 18:47:19,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 06:47:19 BoogieIcfgContainer [2019-01-01 18:47:19,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 18:47:19,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 18:47:19,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 18:47:19,604 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 18:47:19,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 06:47:17" (1/3) ... [2019-01-01 18:47:19,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5e8b3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 06:47:19, skipping insertion in model container [2019-01-01 18:47:19,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:47:18" (2/3) ... [2019-01-01 18:47:19,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5e8b3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 06:47:19, skipping insertion in model container [2019-01-01 18:47:19,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 06:47:19" (3/3) ... [2019-01-01 18:47:19,608 INFO L112 eAbstractionObserver]: Analyzing ICFG splice_true-unreach-call_false-valid-memtrack.i [2019-01-01 18:47:19,616 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 18:47:19,623 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2019-01-01 18:47:19,639 INFO L257 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2019-01-01 18:47:19,667 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 18:47:19,668 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 18:47:19,668 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-01 18:47:19,668 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 18:47:19,669 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 18:47:19,669 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 18:47:19,669 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 18:47:19,669 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 18:47:19,669 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 18:47:19,694 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2019-01-01 18:47:19,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-01 18:47:19,704 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 18:47:19,705 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 18:47:19,708 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION]=== [2019-01-01 18:47:19,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 18:47:19,714 INFO L82 PathProgramCache]: Analyzing trace with hash 468862059, now seen corresponding path program 1 times [2019-01-01 18:47:19,720 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-01 18:47:19,721 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 [2019-01-01 18:47:19,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 18:47:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 18:47:19,820 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 18:47:19,869 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 [2019-01-01 18:47:19,871 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-01 18:47:19,894 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 18:47:19,895 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-01-01 18:47:20,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 18:47:20,032 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-01 18:47:20,038 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 18:47:20,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 18:47:20,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 18:47:20,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 18:47:20,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 18:47:20,057 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 4 states. [2019-01-01 18:47:21,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 18:47:21,189 INFO L93 Difference]: Finished difference Result 89 states and 100 transitions. [2019-01-01 18:47:21,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 18:47:21,191 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-01-01 18:47:21,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 18:47:21,208 INFO L225 Difference]: With dead ends: 89 [2019-01-01 18:47:21,209 INFO L226 Difference]: Without dead ends: 80 [2019-01-01 18:47:21,211 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 [2019-01-01 18:47:21,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-01-01 18:47:21,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 74. [2019-01-01 18:47:21,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-01-01 18:47:21,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 86 transitions. [2019-01-01 18:47:21,272 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 86 transitions. Word has length 10 [2019-01-01 18:47:21,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 18:47:21,273 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 86 transitions. [2019-01-01 18:47:21,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 18:47:21,273 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 86 transitions. [2019-01-01 18:47:21,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-01 18:47:21,274 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 18:47:21,274 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 18:47:21,274 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION]=== [2019-01-01 18:47:21,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 18:47:21,275 INFO L82 PathProgramCache]: Analyzing trace with hash 468862060, now seen corresponding path program 1 times [2019-01-01 18:47:21,275 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-01 18:47:21,275 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 [2019-01-01 18:47:21,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 18:47:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 18:47:21,347 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 18:47:21,379 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 [2019-01-01 18:47:21,380 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-01 18:47:21,454 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 18:47:21,455 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-01-01 18:47:21,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 18:47:21,646 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-01 18:47:21,651 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 18:47:21,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 18:47:21,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 18:47:21,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 18:47:21,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 18:47:21,656 INFO L87 Difference]: Start difference. First operand 74 states and 86 transitions. Second operand 4 states. [2019-01-01 18:47:22,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 18:47:22,229 INFO L93 Difference]: Finished difference Result 88 states and 97 transitions. [2019-01-01 18:47:22,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 18:47:22,231 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-01-01 18:47:22,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 18:47:22,232 INFO L225 Difference]: With dead ends: 88 [2019-01-01 18:47:22,232 INFO L226 Difference]: Without dead ends: 88 [2019-01-01 18:47:22,233 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 [2019-01-01 18:47:22,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-01-01 18:47:22,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 81. [2019-01-01 18:47:22,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-01-01 18:47:22,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2019-01-01 18:47:22,243 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 10 [2019-01-01 18:47:22,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 18:47:22,244 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2019-01-01 18:47:22,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 18:47:22,244 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2019-01-01 18:47:22,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-01 18:47:22,245 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 18:47:22,245 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 18:47:22,245 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION]=== [2019-01-01 18:47:22,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 18:47:22,246 INFO L82 PathProgramCache]: Analyzing trace with hash 635983114, now seen corresponding path program 1 times [2019-01-01 18:47:22,246 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-01 18:47:22,246 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 [2019-01-01 18:47:22,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 18:47:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 18:47:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 18:47:22,408 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-01 18:47:22,408 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-01 18:47:22,438 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-01-01 18:47:22,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 06:47:22 BoogieIcfgContainer [2019-01-01 18:47:22,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 18:47:22,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 18:47:22,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 18:47:22,455 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 18:47:22,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 06:47:19" (3/4) ... [2019-01-01 18:47:22,460 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-01 18:47:22,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 18:47:22,461 INFO L168 Benchmark]: Toolchain (without parser) took 4877.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 951.4 MB in the beginning and 972.9 MB in the end (delta: -21.5 MB). Peak memory consumption was 126.9 MB. Max. memory is 11.5 GB. [2019-01-01 18:47:22,463 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 18:47:22,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. [2019-01-01 18:47:22,465 INFO L168 Benchmark]: Boogie Preprocessor took 81.95 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. [2019-01-01 18:47:22,465 INFO L168 Benchmark]: RCFGBuilder took 1223.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 59.0 MB). Peak memory consumption was 59.0 MB. Max. memory is 11.5 GB. [2019-01-01 18:47:22,466 INFO L168 Benchmark]: TraceAbstraction took 2854.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 972.9 MB in the end (delta: 91.2 MB). Peak memory consumption was 91.2 MB. Max. memory is 11.5 GB. [2019-01-01 18:47:22,467 INFO L168 Benchmark]: Witness Printer took 5.37 ms. Allocated memory is still 1.2 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 18:47:22,472 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 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 705.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 81.95 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 1223.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 59.0 MB). Peak memory consumption was 59.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2854.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 972.9 MB in the end (delta: 91.2 MB). Peak memory consumption was 91.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.37 ms. Allocated memory is still 1.2 GB. Free memory is still 972.9 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={1073741824:0}, flag=1, malloc(sizeof(struct node))={1073741824:0}] [L629] COND FALSE !(a == 0) VAL [a={1073741824:0}, flag=1, malloc(sizeof(struct node))={1073741824:0}] [L630] List t; [L631] List l1; [L632] List l2; [L633] List b; [L634] List u; [L635] List p = a; VAL [a={1073741824:0}, flag=1, malloc(sizeof(struct node))={1073741824:0}, p={1073741824:0}] [L636] COND FALSE !(__VERIFIER_nondet_int()) [L649] p->h = 3 VAL [a={1073741824:0}, flag=1, malloc(sizeof(struct node))={1073741824:0}, p={1073741824:0}] [L650] EXPR a->h VAL [a={1073741824:0}, a->h=3, flag=1, malloc(sizeof(struct node))={1073741824:0}, p={1073741824:0}] [L650] COND TRUE a->h == 3 [L650] return 0; VAL [\result=0, a={1073741824:0}, flag=1, malloc(sizeof(struct node))={1073741824:0}, p={1073741824:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 84 locations, 29 error locations. UNSAFE Result, 2.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 86 SDtfs, 225 SDslu, 54 SDs, 0 SdLazy, 158 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s 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, 78 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...