./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memcleanup.prp --file /storage/repos/svcomp/c/list-properties/list_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) 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/list_false-unreach-call_false-valid-memcleanup.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 59941807ee61f14408f8cb6acb0590ac0607fc0d ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memtrack) --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 20:11:04,457 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 20:11:04,459 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 20:11:04,471 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 20:11:04,471 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 20:11:04,472 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 20:11:04,474 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 20:11:04,477 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 20:11:04,478 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 20:11:04,481 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 20:11:04,482 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 20:11:04,482 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 20:11:04,483 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 20:11:04,484 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 20:11:04,486 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 20:11:04,487 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 20:11:04,488 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 20:11:04,491 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 20:11:04,493 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 20:11:04,495 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 20:11:04,496 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 20:11:04,497 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 20:11:04,501 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 20:11:04,501 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 20:11:04,501 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 20:11:04,502 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 20:11:04,504 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 20:11:04,505 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 20:11:04,506 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 20:11:04,507 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 20:11:04,508 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 20:11:04,508 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 20:11:04,509 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 20:11:04,509 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 20:11:04,510 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 20:11:04,512 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 20:11:04,512 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-01-01 20:11:04,529 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 20:11:04,530 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 20:11:04,531 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 20:11:04,532 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 20:11:04,532 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 20:11:04,532 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 20:11:04,533 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 20:11:04,534 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 20:11:04,534 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 20:11:04,534 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 20:11:04,534 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 20:11:04,535 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-01 20:11:04,535 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-01 20:11:04,535 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 20:11:04,536 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 20:11:04,537 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 20:11:04,537 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 20:11:04,537 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 20:11:04,538 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 20:11:04,538 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 20:11:04,538 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 20:11:04,539 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 20:11:04,540 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 20:11:04,540 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 20:11:04,540 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 20:11:04,540 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-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 -> 59941807ee61f14408f8cb6acb0590ac0607fc0d [2019-01-01 20:11:04,581 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 20:11:04,608 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 20:11:04,616 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 20:11:04,620 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 20:11:04,621 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 20:11:04,622 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/list-properties/list_false-unreach-call_false-valid-memcleanup.i [2019-01-01 20:11:04,697 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0702894c/36b11d9b52b943e09a7a34aee48a2164/FLAG7c095b350 [2019-01-01 20:11:05,181 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 20:11:05,183 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/list-properties/list_false-unreach-call_false-valid-memcleanup.i [2019-01-01 20:11:05,203 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0702894c/36b11d9b52b943e09a7a34aee48a2164/FLAG7c095b350 [2019-01-01 20:11:05,471 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0702894c/36b11d9b52b943e09a7a34aee48a2164 [2019-01-01 20:11:05,475 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 20:11:05,476 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-01 20:11:05,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 20:11:05,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 20:11:05,482 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 20:11:05,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:11:05" (1/1) ... [2019-01-01 20:11:05,487 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 08:11:05, skipping insertion in model container [2019-01-01 20:11:05,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:11:05" (1/1) ... [2019-01-01 20:11:05,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 20:11:05,546 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 20:11:05,941 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:11:05,960 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 20:11:06,108 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:11:06,180 INFO L195 MainTranslator]: Completed translation [2019-01-01 20:11:06,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:11:06 WrapperNode [2019-01-01 20:11:06,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 20:11:06,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 20:11:06,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 20:11:06,184 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 20:11:06,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:11:06" (1/1) ... [2019-01-01 20:11:06,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:11:06" (1/1) ... [2019-01-01 20:11:06,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:11:06" (1/1) ... [2019-01-01 20:11:06,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:11:06" (1/1) ... [2019-01-01 20:11:06,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:11:06" (1/1) ... [2019-01-01 20:11:06,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:11:06" (1/1) ... [2019-01-01 20:11:06,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:11:06" (1/1) ... [2019-01-01 20:11:06,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 20:11:06,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 20:11:06,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 20:11:06,275 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 20:11:06,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:11:06" (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 20:11:06,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-01 20:11:06,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 20:11:06,344 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-01-01 20:11:06,344 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-01 20:11:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-01-01 20:11:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-01-01 20:11:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-01-01 20:11:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-01-01 20:11:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-01-01 20:11:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-01-01 20:11:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-01-01 20:11:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-01-01 20:11:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-01-01 20:11:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-01-01 20:11:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-01-01 20:11:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-01-01 20:11:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-01-01 20:11:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-01-01 20:11:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-01-01 20:11:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-01-01 20:11:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-01-01 20:11:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-01-01 20:11:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-01-01 20:11:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-01-01 20:11:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-01-01 20:11:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-01-01 20:11:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-01-01 20:11:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-01-01 20:11:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-01-01 20:11:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-01-01 20:11:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-01-01 20:11:06,351 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-01-01 20:11:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-01-01 20:11:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-01-01 20:11:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-01-01 20:11:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-01-01 20:11:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-01-01 20:11:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-01-01 20:11:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-01-01 20:11:06,353 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-01-01 20:11:06,353 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-01-01 20:11:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-01-01 20:11:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-01-01 20:11:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-01-01 20:11:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-01-01 20:11:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-01-01 20:11:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-01-01 20:11:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-01-01 20:11:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-01-01 20:11:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-01-01 20:11:06,355 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-01-01 20:11:06,355 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-01-01 20:11:06,355 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-01-01 20:11:06,355 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-01-01 20:11:06,355 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-01-01 20:11:06,355 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-01-01 20:11:06,355 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-01-01 20:11:06,355 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-01-01 20:11:06,357 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-01-01 20:11:06,358 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-01-01 20:11:06,358 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-01-01 20:11:06,358 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-01-01 20:11:06,358 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-01-01 20:11:06,358 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-01-01 20:11:06,358 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-01-01 20:11:06,358 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-01-01 20:11:06,359 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-01-01 20:11:06,360 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-01-01 20:11:06,360 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-01-01 20:11:06,360 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-01-01 20:11:06,360 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2019-01-01 20:11:06,360 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-01-01 20:11:06,360 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-01-01 20:11:06,360 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-01-01 20:11:06,361 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-01-01 20:11:06,361 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-01-01 20:11:06,362 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-01-01 20:11:06,362 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-01-01 20:11:06,362 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-01-01 20:11:06,362 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-01-01 20:11:06,362 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-01-01 20:11:06,362 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-01-01 20:11:06,362 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-01-01 20:11:06,362 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-01-01 20:11:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-01-01 20:11:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-01-01 20:11:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-01-01 20:11:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-01-01 20:11:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-01-01 20:11:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-01-01 20:11:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-01-01 20:11:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-01-01 20:11:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-01-01 20:11:06,366 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-01-01 20:11:06,366 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-01-01 20:11:06,366 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-01-01 20:11:06,366 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-01-01 20:11:06,366 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-01-01 20:11:06,366 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-01-01 20:11:06,366 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-01-01 20:11:06,366 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-01-01 20:11:06,367 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-01-01 20:11:06,368 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-01-01 20:11:06,368 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-01-01 20:11:06,368 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-01-01 20:11:06,368 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-01-01 20:11:06,368 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-01-01 20:11:06,368 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-01-01 20:11:06,368 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-01 20:11:06,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-01-01 20:11:06,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 20:11:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-01-01 20:11:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-01-01 20:11:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-01 20:11:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-01 20:11:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 20:11:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 20:11:07,221 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 20:11:07,221 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-01 20:11:07,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:11:07 BoogieIcfgContainer [2019-01-01 20:11:07,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 20:11:07,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 20:11:07,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 20:11:07,227 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 20:11:07,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 08:11:05" (1/3) ... [2019-01-01 20:11:07,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c66de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:11:07, skipping insertion in model container [2019-01-01 20:11:07,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:11:06" (2/3) ... [2019-01-01 20:11:07,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c66de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:11:07, skipping insertion in model container [2019-01-01 20:11:07,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:11:07" (3/3) ... [2019-01-01 20:11:07,232 INFO L112 eAbstractionObserver]: Analyzing ICFG list_false-unreach-call_false-valid-memcleanup.i [2019-01-01 20:11:07,243 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 20:11:07,252 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 25 error locations. [2019-01-01 20:11:07,271 INFO L257 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2019-01-01 20:11:07,300 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 20:11:07,301 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 20:11:07,301 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-01 20:11:07,301 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 20:11:07,303 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 20:11:07,303 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 20:11:07,303 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 20:11:07,304 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 20:11:07,304 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 20:11:07,323 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2019-01-01 20:11:07,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-01 20:11:07,333 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:11:07,334 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 20:11:07,336 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2019-01-01 20:11:07,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:11:07,343 INFO L82 PathProgramCache]: Analyzing trace with hash -2132532229, now seen corresponding path program 1 times [2019-01-01 20:11:07,345 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:11:07,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:11:07,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:11:07,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:11:07,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:11:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:11:07,580 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 20:11:07,583 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:11:07,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 20:11:07,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 20:11:07,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 20:11:07,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 20:11:07,603 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 4 states. [2019-01-01 20:11:08,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:11:08,121 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2019-01-01 20:11:08,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 20:11:08,123 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-01-01 20:11:08,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:11:08,134 INFO L225 Difference]: With dead ends: 79 [2019-01-01 20:11:08,134 INFO L226 Difference]: Without dead ends: 70 [2019-01-01 20:11:08,136 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 20:11:08,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-01-01 20:11:08,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2019-01-01 20:11:08,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-01-01 20:11:08,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2019-01-01 20:11:08,183 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 11 [2019-01-01 20:11:08,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:11:08,183 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2019-01-01 20:11:08,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 20:11:08,183 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2019-01-01 20:11:08,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-01 20:11:08,184 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:11:08,184 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 20:11:08,184 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2019-01-01 20:11:08,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:11:08,185 INFO L82 PathProgramCache]: Analyzing trace with hash -2132532228, now seen corresponding path program 1 times [2019-01-01 20:11:08,185 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:11:08,185 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:11:08,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:11:08,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:11:08,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:11:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:11:08,301 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 20:11:08,301 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:11:08,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 20:11:08,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 20:11:08,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 20:11:08,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 20:11:08,304 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand 4 states. [2019-01-01 20:11:08,460 WARN L181 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-01-01 20:11:08,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:11:08,891 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2019-01-01 20:11:08,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 20:11:08,892 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-01-01 20:11:08,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:11:08,894 INFO L225 Difference]: With dead ends: 88 [2019-01-01 20:11:08,894 INFO L226 Difference]: Without dead ends: 88 [2019-01-01 20:11:08,896 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 20:11:08,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-01-01 20:11:08,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 79. [2019-01-01 20:11:08,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-01-01 20:11:08,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2019-01-01 20:11:08,906 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 11 [2019-01-01 20:11:08,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:11:08,907 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2019-01-01 20:11:08,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 20:11:08,907 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2019-01-01 20:11:08,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-01 20:11:08,908 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:11:08,908 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 20:11:08,908 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2019-01-01 20:11:08,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:11:08,909 INFO L82 PathProgramCache]: Analyzing trace with hash 2029512520, now seen corresponding path program 1 times [2019-01-01 20:11:08,909 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:11:08,909 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:11:08,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:11:08,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:11:08,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:11:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:11:09,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:11:09,033 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:11:09,033 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 20:11:09,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 20:11:09,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 20:11:09,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-01 20:11:09,034 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand 6 states. [2019-01-01 20:11:09,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:11:09,298 INFO L93 Difference]: Finished difference Result 112 states and 119 transitions. [2019-01-01 20:11:09,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 20:11:09,299 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2019-01-01 20:11:09,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:11:09,302 INFO L225 Difference]: With dead ends: 112 [2019-01-01 20:11:09,302 INFO L226 Difference]: Without dead ends: 112 [2019-01-01 20:11:09,303 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-01-01 20:11:09,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2019-01-01 20:11:09,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 82. [2019-01-01 20:11:09,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-01-01 20:11:09,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2019-01-01 20:11:09,313 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 19 [2019-01-01 20:11:09,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:11:09,314 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2019-01-01 20:11:09,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 20:11:09,314 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2019-01-01 20:11:09,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-01 20:11:09,316 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:11:09,316 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 20:11:09,316 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2019-01-01 20:11:09,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:11:09,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1001615762, now seen corresponding path program 1 times [2019-01-01 20:11:09,317 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:11:09,317 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:11:09,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:11:09,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:11:09,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:11:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:11:09,439 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:11:09,439 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:11:09,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 20:11:09,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 20:11:09,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 20:11:09,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-01 20:11:09,441 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 6 states. [2019-01-01 20:11:09,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:11:09,817 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2019-01-01 20:11:09,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 20:11:09,822 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2019-01-01 20:11:09,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:11:09,823 INFO L225 Difference]: With dead ends: 105 [2019-01-01 20:11:09,823 INFO L226 Difference]: Without dead ends: 105 [2019-01-01 20:11:09,824 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-01-01 20:11:09,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-01-01 20:11:09,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 85. [2019-01-01 20:11:09,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-01-01 20:11:09,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 96 transitions. [2019-01-01 20:11:09,831 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 96 transitions. Word has length 19 [2019-01-01 20:11:09,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:11:09,832 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 96 transitions. [2019-01-01 20:11:09,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 20:11:09,832 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 96 transitions. [2019-01-01 20:11:09,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-01 20:11:09,833 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:11:09,833 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 20:11:09,834 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2019-01-01 20:11:09,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:11:09,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1001615761, now seen corresponding path program 1 times [2019-01-01 20:11:09,834 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:11:09,834 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:11:09,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:11:09,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:11:09,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:11:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:11:09,979 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:11:09,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:11:09,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 20:11:09,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 20:11:09,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 20:11:09,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-01 20:11:09,981 INFO L87 Difference]: Start difference. First operand 85 states and 96 transitions. Second operand 6 states. [2019-01-01 20:11:11,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:11:11,045 INFO L93 Difference]: Finished difference Result 106 states and 116 transitions. [2019-01-01 20:11:11,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-01 20:11:11,046 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2019-01-01 20:11:11,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:11:11,047 INFO L225 Difference]: With dead ends: 106 [2019-01-01 20:11:11,048 INFO L226 Difference]: Without dead ends: 106 [2019-01-01 20:11:11,048 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2019-01-01 20:11:11,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-01-01 20:11:11,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 76. [2019-01-01 20:11:11,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-01-01 20:11:11,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2019-01-01 20:11:11,055 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 19 [2019-01-01 20:11:11,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:11:11,056 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2019-01-01 20:11:11,056 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 20:11:11,056 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2019-01-01 20:11:11,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-01-01 20:11:11,058 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:11:11,058 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 20:11:11,059 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2019-01-01 20:11:11,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:11:11,059 INFO L82 PathProgramCache]: Analyzing trace with hash 398800981, now seen corresponding path program 1 times [2019-01-01 20:11:11,059 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:11:11,059 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:11:11,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:11:11,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:11:11,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:11:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:11:11,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:11:11,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:11:11,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 20:11:11,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 20:11:11,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 20:11:11,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-01 20:11:11,146 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 6 states. [2019-01-01 20:11:11,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:11:11,352 INFO L93 Difference]: Finished difference Result 101 states and 108 transitions. [2019-01-01 20:11:11,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 20:11:11,353 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-01-01 20:11:11,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:11:11,355 INFO L225 Difference]: With dead ends: 101 [2019-01-01 20:11:11,355 INFO L226 Difference]: Without dead ends: 101 [2019-01-01 20:11:11,356 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-01-01 20:11:11,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-01-01 20:11:11,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 78. [2019-01-01 20:11:11,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-01-01 20:11:11,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 87 transitions. [2019-01-01 20:11:11,363 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 87 transitions. Word has length 21 [2019-01-01 20:11:11,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:11:11,363 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 87 transitions. [2019-01-01 20:11:11,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 20:11:11,364 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 87 transitions. [2019-01-01 20:11:11,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-01-01 20:11:11,364 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:11:11,365 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 20:11:11,365 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2019-01-01 20:11:11,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:11:11,365 INFO L82 PathProgramCache]: Analyzing trace with hash 102986752, now seen corresponding path program 1 times [2019-01-01 20:11:11,366 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:11:11,366 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:11:11,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:11:11,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:11:11,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:11:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:11:11,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:11:11,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:11:11,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 20:11:11,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 20:11:11,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 20:11:11,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-01 20:11:11,450 INFO L87 Difference]: Start difference. First operand 78 states and 87 transitions. Second operand 6 states. [2019-01-01 20:11:11,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:11:11,670 INFO L93 Difference]: Finished difference Result 86 states and 93 transitions. [2019-01-01 20:11:11,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 20:11:11,676 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-01-01 20:11:11,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:11:11,677 INFO L225 Difference]: With dead ends: 86 [2019-01-01 20:11:11,677 INFO L226 Difference]: Without dead ends: 86 [2019-01-01 20:11:11,677 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-01-01 20:11:11,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-01-01 20:11:11,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 76. [2019-01-01 20:11:11,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-01-01 20:11:11,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2019-01-01 20:11:11,685 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 21 [2019-01-01 20:11:11,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:11:11,686 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2019-01-01 20:11:11,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 20:11:11,686 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2019-01-01 20:11:11,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-01-01 20:11:11,687 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:11:11,687 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 20:11:11,689 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2019-01-01 20:11:11,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:11:11,689 INFO L82 PathProgramCache]: Analyzing trace with hash 102986753, now seen corresponding path program 1 times [2019-01-01 20:11:11,689 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:11:11,690 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:11:11,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:11:11,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:11:11,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:11:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:11:11,965 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:11:11,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:11:11,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 20:11:11,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 20:11:11,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 20:11:11,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-01 20:11:11,967 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 6 states. [2019-01-01 20:11:12,499 WARN L181 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2019-01-01 20:11:12,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:11:12,580 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2019-01-01 20:11:12,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-01 20:11:12,582 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-01-01 20:11:12,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:11:12,583 INFO L225 Difference]: With dead ends: 83 [2019-01-01 20:11:12,584 INFO L226 Difference]: Without dead ends: 83 [2019-01-01 20:11:12,584 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2019-01-01 20:11:12,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-01-01 20:11:12,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 64. [2019-01-01 20:11:12,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-01-01 20:11:12,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2019-01-01 20:11:12,595 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 21 [2019-01-01 20:11:12,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:11:12,595 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2019-01-01 20:11:12,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 20:11:12,596 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2019-01-01 20:11:12,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-01-01 20:11:12,596 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:11:12,597 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 20:11:12,597 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2019-01-01 20:11:12,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:11:12,597 INFO L82 PathProgramCache]: Analyzing trace with hash -523696583, now seen corresponding path program 1 times [2019-01-01 20:11:12,597 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:11:12,597 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:11:12,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:11:12,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:11:12,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:11:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 20:11:12,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 20:11:12,689 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-01 20:11:12,712 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-01-01 20:11:12,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 08:11:12 BoogieIcfgContainer [2019-01-01 20:11:12,727 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 20:11:12,728 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 20:11:12,729 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 20:11:12,729 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 20:11:12,730 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:11:07" (3/4) ... [2019-01-01 20:11:12,733 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-01 20:11:12,737 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-01-01 20:11:12,784 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 20:11:12,784 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 20:11:12,785 INFO L168 Benchmark]: Toolchain (without parser) took 7309.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 205.5 MB). Free memory was 946.0 MB in the beginning and 1.2 GB in the end (delta: -220.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:11:12,786 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:11:12,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. [2019-01-01 20:11:12,787 INFO L168 Benchmark]: Boogie Preprocessor took 92.33 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 20:11:12,788 INFO L168 Benchmark]: RCFGBuilder took 946.63 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: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 11.5 GB. [2019-01-01 20:11:12,788 INFO L168 Benchmark]: TraceAbstraction took 5504.92 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -112.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:11:12,789 INFO L168 Benchmark]: Witness Printer took 55.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:11:12,793 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 704.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 92.33 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 946.63 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: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5504.92 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -112.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 55.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. 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: 626]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L627] List a = (List) malloc(sizeof(struct node)); VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}] [L628] COND FALSE !(a == 0) VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}] [L629] List t; [L630] List p = a; VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L631] COND FALSE !(__VERIFIER_nondet_int()) [L638] COND FALSE !(__VERIFIER_nondet_int()) [L645] p->h = 3 VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L646] p = a VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L647] EXPR p->h VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=3] [L647] COND FALSE !(p->h == 2) [L649] EXPR p->h VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=3] [L649] COND FALSE !(p->h == 1) [L651] EXPR p->h VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=3] [L651] COND FALSE !(p->h != 3) [L653] return 0; VAL [\result=0, a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 25 error locations. UNSAFE Result, 5.4s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 3.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 349 SDtfs, 596 SDslu, 757 SDs, 0 SdLazy, 1010 SolverSat, 99 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=4, 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, 8 MinimizatonAttempts, 146 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 8760 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...