./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/list-properties/splice-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version f470102c Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/list-properties/splice-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 336180afe1780bd2c4e24c39131e05a2fcb6ebf1 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:20:42,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:20:42,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:20:42,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:20:42,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:20:42,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:20:42,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:20:42,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:20:42,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:20:42,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:20:42,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:20:42,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:20:42,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:20:42,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:20:42,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:20:42,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:20:42,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:20:42,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:20:42,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:20:42,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:20:42,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:20:42,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:20:42,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:20:42,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:20:42,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:20:42,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:20:42,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:20:42,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:20:42,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:20:42,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:20:42,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:20:42,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:20:42,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:20:42,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:20:42,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:20:42,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:20:42,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:20:42,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:20:42,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:20:42,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:20:42,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:20:42,453 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-11-28 20:20:42,469 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:20:42,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:20:42,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:20:42,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:20:42,471 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:20:42,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:20:42,471 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:20:42,471 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:20:42,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:20:42,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:20:42,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:20:42,472 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:20:42,473 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:20:42,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:20:42,473 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:20:42,473 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:20:42,473 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:20:42,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:20:42,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:20:42,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:20:42,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:20:42,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:20:42,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:20:42,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:20:42,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:20:42,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:20:42,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:20:42,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-memcleanup) ) 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 -> 336180afe1780bd2c4e24c39131e05a2fcb6ebf1 [2019-11-28 20:20:42,789 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:20:42,808 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:20:42,813 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:20:42,814 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:20:42,815 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:20:42,816 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/splice-1.i [2019-11-28 20:20:42,878 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16748c08c/b799041845da443cac11bda5f5db6356/FLAG49415b43d [2019-11-28 20:20:43,421 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:20:43,425 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/splice-1.i [2019-11-28 20:20:43,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16748c08c/b799041845da443cac11bda5f5db6356/FLAG49415b43d [2019-11-28 20:20:43,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16748c08c/b799041845da443cac11bda5f5db6356 [2019-11-28 20:20:43,747 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:20:43,748 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:20:43,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:20:43,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:20:43,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:20:43,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:20:43" (1/1) ... [2019-11-28 20:20:43,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2436fed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:43, skipping insertion in model container [2019-11-28 20:20:43,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:20:43" (1/1) ... [2019-11-28 20:20:43,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:20:43,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:20:44,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:20:44,223 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:20:44,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:20:44,387 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:20:44,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:44 WrapperNode [2019-11-28 20:20:44,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:20:44,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:20:44,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:20:44,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:20:44,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:44" (1/1) ... [2019-11-28 20:20:44,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:44" (1/1) ... [2019-11-28 20:20:44,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:44" (1/1) ... [2019-11-28 20:20:44,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:44" (1/1) ... [2019-11-28 20:20:44,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:44" (1/1) ... [2019-11-28 20:20:44,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:44" (1/1) ... [2019-11-28 20:20:44,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:44" (1/1) ... [2019-11-28 20:20:44,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:20:44,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:20:44,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:20:44,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:20:44,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:44" (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 [2019-11-28 20:20:44,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:20:44,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:20:44,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 20:20:44,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 20:20:44,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 20:20:44,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 20:20:44,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 20:20:44,527 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-28 20:20:44,527 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:20:44,528 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 20:20:44,528 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 20:20:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 20:20:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 20:20:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 20:20:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 20:20:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 20:20:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 20:20:44,532 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 20:20:44,533 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 20:20:44,533 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 20:20:44,533 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 20:20:44,533 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 20:20:44,534 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 20:20:44,534 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 20:20:44,534 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 20:20:44,534 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 20:20:44,534 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 20:20:44,535 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 20:20:44,535 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 20:20:44,535 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 20:20:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 20:20:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 20:20:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 20:20:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 20:20:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 20:20:44,537 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 20:20:44,537 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 20:20:44,537 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 20:20:44,537 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 20:20:44,537 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 20:20:44,538 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 20:20:44,538 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 20:20:44,538 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 20:20:44,538 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 20:20:44,538 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 20:20:44,540 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 20:20:44,540 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 20:20:44,540 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 20:20:44,540 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 20:20:44,540 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 20:20:44,541 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 20:20:44,541 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 20:20:44,541 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 20:20:44,541 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 20:20:44,541 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 20:20:44,541 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 20:20:44,541 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 20:20:44,542 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 20:20:44,542 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 20:20:44,542 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 20:20:44,543 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 20:20:44,543 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 20:20:44,543 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 20:20:44,543 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 20:20:44,543 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 20:20:44,543 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 20:20:44,543 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 20:20:44,544 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 20:20:44,544 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 20:20:44,545 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 20:20:44,545 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 20:20:44,545 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 20:20:44,545 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 20:20:44,546 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 20:20:44,546 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 20:20:44,547 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 20:20:44,547 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 20:20:44,548 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 20:20:44,548 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 20:20:44,548 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 20:20:44,548 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 20:20:44,548 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 20:20:44,548 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 20:20:44,548 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 20:20:44,549 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 20:20:44,549 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 20:20:44,549 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 20:20:44,549 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 20:20:44,549 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 20:20:44,549 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 20:20:44,550 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 20:20:44,550 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 20:20:44,550 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 20:20:44,550 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 20:20:44,550 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 20:20:44,550 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 20:20:44,551 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 20:20:44,551 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 20:20:44,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 20:20:44,551 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 20:20:44,551 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 20:20:44,551 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 20:20:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 20:20:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 20:20:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 20:20:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 20:20:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 20:20:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 20:20:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 20:20:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 20:20:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 20:20:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 20:20:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 20:20:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 20:20:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 20:20:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 20:20:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 20:20:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 20:20:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-28 20:20:44,555 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:20:44,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 20:20:44,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:20:44,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 20:20:44,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 20:20:44,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:20:44,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:20:44,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:20:44,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:20:44,915 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-28 20:20:45,269 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:20:45,269 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 20:20:45,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:45 BoogieIcfgContainer [2019-11-28 20:20:45,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:20:45,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:20:45,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:20:45,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:20:45,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:20:43" (1/3) ... [2019-11-28 20:20:45,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19484d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:20:45, skipping insertion in model container [2019-11-28 20:20:45,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:44" (2/3) ... [2019-11-28 20:20:45,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19484d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:20:45, skipping insertion in model container [2019-11-28 20:20:45,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:45" (3/3) ... [2019-11-28 20:20:45,278 INFO L109 eAbstractionObserver]: Analyzing ICFG splice-1.i [2019-11-28 20:20:45,288 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:20:45,296 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 30 error locations. [2019-11-28 20:20:45,308 INFO L249 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2019-11-28 20:20:45,330 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:20:45,330 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:20:45,330 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:20:45,330 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:20:45,331 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:20:45,331 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:20:45,331 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:20:45,331 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:20:45,349 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2019-11-28 20:20:45,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 20:20:45,360 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:45,361 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:45,361 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:20:45,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:45,368 INFO L82 PathProgramCache]: Analyzing trace with hash 132221508, now seen corresponding path program 1 times [2019-11-28 20:20:45,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:45,377 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554322261] [2019-11-28 20:20:45,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:45,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:20:45,549 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554322261] [2019-11-28 20:20:45,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:45,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:20:45,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039207270] [2019-11-28 20:20:45,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:20:45,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:45,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:20:45,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:20:45,575 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2019-11-28 20:20:45,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:45,808 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2019-11-28 20:20:45,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:20:45,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-28 20:20:45,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:45,819 INFO L225 Difference]: With dead ends: 84 [2019-11-28 20:20:45,820 INFO L226 Difference]: Without dead ends: 77 [2019-11-28 20:20:45,822 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:20:45,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-11-28 20:20:45,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-11-28 20:20:45,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-28 20:20:45,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2019-11-28 20:20:45,868 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 10 [2019-11-28 20:20:45,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:45,868 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2019-11-28 20:20:45,869 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:20:45,869 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2019-11-28 20:20:45,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 20:20:45,869 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:45,870 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:45,870 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:20:45,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:45,871 INFO L82 PathProgramCache]: Analyzing trace with hash -196136195, now seen corresponding path program 1 times [2019-11-28 20:20:45,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:45,871 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014421037] [2019-11-28 20:20:45,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:45,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:20:45,976 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014421037] [2019-11-28 20:20:45,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:45,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 20:20:45,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449580460] [2019-11-28 20:20:45,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:20:45,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:45,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:20:45,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:20:45,983 INFO L87 Difference]: Start difference. First operand 77 states and 84 transitions. Second operand 5 states. [2019-11-28 20:20:46,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:46,236 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2019-11-28 20:20:46,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:20:46,237 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-28 20:20:46,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:46,239 INFO L225 Difference]: With dead ends: 84 [2019-11-28 20:20:46,239 INFO L226 Difference]: Without dead ends: 84 [2019-11-28 20:20:46,241 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:20:46,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-28 20:20:46,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 78. [2019-11-28 20:20:46,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-11-28 20:20:46,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 91 transitions. [2019-11-28 20:20:46,258 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 91 transitions. Word has length 11 [2019-11-28 20:20:46,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:46,259 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 91 transitions. [2019-11-28 20:20:46,260 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:20:46,260 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 91 transitions. [2019-11-28 20:20:46,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 20:20:46,261 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:46,262 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:46,262 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:20:46,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:46,262 INFO L82 PathProgramCache]: Analyzing trace with hash -196136194, now seen corresponding path program 1 times [2019-11-28 20:20:46,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:46,263 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900461259] [2019-11-28 20:20:46,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:46,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:20:46,412 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900461259] [2019-11-28 20:20:46,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:46,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 20:20:46,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026579009] [2019-11-28 20:20:46,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:20:46,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:46,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:20:46,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:20:46,414 INFO L87 Difference]: Start difference. First operand 78 states and 91 transitions. Second operand 5 states. [2019-11-28 20:20:46,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:46,677 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2019-11-28 20:20:46,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:20:46,678 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-28 20:20:46,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:46,679 INFO L225 Difference]: With dead ends: 92 [2019-11-28 20:20:46,680 INFO L226 Difference]: Without dead ends: 92 [2019-11-28 20:20:46,680 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:20:46,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-28 20:20:46,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 85. [2019-11-28 20:20:46,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-11-28 20:20:46,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2019-11-28 20:20:46,690 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 11 [2019-11-28 20:20:46,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:46,690 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2019-11-28 20:20:46,691 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:20:46,691 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2019-11-28 20:20:46,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 20:20:46,692 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:46,692 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:46,692 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:20:46,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:46,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1937825696, now seen corresponding path program 1 times [2019-11-28 20:20:46,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:46,694 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514862314] [2019-11-28 20:20:46,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:20:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:20:46,762 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:20:46,763 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:20:46,779 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-28 20:20:46,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:20:46 BoogieIcfgContainer [2019-11-28 20:20:46,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:20:46,803 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:20:46,803 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:20:46,803 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:20:46,805 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:45" (3/4) ... [2019-11-28 20:20:46,807 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 20:20:46,810 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-28 20:20:46,855 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:20:46,855 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:20:46,857 INFO L168 Benchmark]: Toolchain (without parser) took 3108.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 955.0 MB in the beginning and 932.6 MB in the end (delta: 22.4 MB). Peak memory consumption was 152.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:46,858 INFO L168 Benchmark]: CDTParser took 1.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:20:46,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -161.8 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:46,860 INFO L168 Benchmark]: Boogie Preprocessor took 64.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:46,861 INFO L168 Benchmark]: RCFGBuilder took 816.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.8 MB). Peak memory consumption was 57.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:46,861 INFO L168 Benchmark]: TraceAbstraction took 1529.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 932.6 MB in the end (delta: 114.4 MB). Peak memory consumption was 114.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:46,862 INFO L168 Benchmark]: Witness Printer took 52.33 ms. Allocated memory is still 1.2 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:20:46,865 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 639.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -161.8 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 816.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.8 MB). Peak memory consumption was 57.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1529.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 932.6 MB in the end (delta: 114.4 MB). Peak memory consumption was 114.4 MB. Max. memory is 11.5 GB. * Witness Printer took 52.33 ms. Allocated memory is still 1.2 GB. Free memory is still 932.6 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) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 520]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L521] int flag = 1; [L522] List a = (List) malloc(sizeof(struct node)); VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L523] COND FALSE !(a == 0) VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L524] List t; [L525] List l1; [L526] List l2; [L527] List b; [L528] List u; [L529] List p = a; VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L530] COND FALSE !(__VERIFIER_nondet_int()) [L543] p->h = 3 VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L544] EXPR a->h VAL [a={-1:0}, a->h=3, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L544] COND TRUE a->h == 3 [L544] return 0; VAL [\result=0, a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 100 locations, 30 error locations. Result: UNSAFE, OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 172 SDtfs, 230 SDslu, 58 SDs, 0 SdLazy, 386 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 1142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...