./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 724adc6a4f2ec76770ad6e25afc3fbe94cdc2656 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 724adc6a4f2ec76770ad6e25afc3fbe94cdc2656 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:24:06,434 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:24:06,435 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:24:06,444 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:24:06,444 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:24:06,445 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:24:06,446 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:24:06,447 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:24:06,448 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:24:06,448 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:24:06,449 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:24:06,449 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:24:06,450 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:24:06,450 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:24:06,451 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:24:06,451 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:24:06,452 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:24:06,453 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:24:06,454 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:24:06,455 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:24:06,456 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:24:06,457 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:24:06,458 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:24:06,458 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:24:06,458 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:24:06,459 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:24:06,459 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:24:06,460 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:24:06,460 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:24:06,461 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:24:06,461 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:24:06,462 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:24:06,462 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:24:06,462 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:24:06,463 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:24:06,463 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:24:06,463 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 12:24:06,471 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:24:06,471 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:24:06,472 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:24:06,472 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:24:06,472 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:24:06,472 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:24:06,473 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:24:06,473 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:24:06,473 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:24:06,473 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:24:06,473 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:24:06,473 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:24:06,474 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:24:06,474 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 12:24:06,474 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 12:24:06,474 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 12:24:06,474 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:24:06,474 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:24:06,474 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:24:06,475 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:24:06,475 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:24:06,475 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:24:06,475 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:24:06,475 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:24:06,475 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:24:06,476 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:24:06,476 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:24:06,476 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:24:06,476 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 724adc6a4f2ec76770ad6e25afc3fbe94cdc2656 [2018-11-28 12:24:06,501 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:24:06,509 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:24:06,512 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:24:06,513 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:24:06,513 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:24:06,514 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i [2018-11-28 12:24:06,552 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/data/1b2be1e62/c1c4bf9b7bf84cda89c8f9c22b645033/FLAG6a48ed9a2 [2018-11-28 12:24:06,894 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:24:06,894 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i [2018-11-28 12:24:06,902 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/data/1b2be1e62/c1c4bf9b7bf84cda89c8f9c22b645033/FLAG6a48ed9a2 [2018-11-28 12:24:06,912 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/data/1b2be1e62/c1c4bf9b7bf84cda89c8f9c22b645033 [2018-11-28 12:24:06,914 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:24:06,915 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 12:24:06,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:24:06,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:24:06,918 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:24:06,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:24:06" (1/1) ... [2018-11-28 12:24:06,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2104dfb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:06, skipping insertion in model container [2018-11-28 12:24:06,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:24:06" (1/1) ... [2018-11-28 12:24:06,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:24:06,947 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:24:07,115 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:24:07,119 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:24:07,184 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:24:07,215 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:24:07,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:07 WrapperNode [2018-11-28 12:24:07,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:24:07,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:24:07,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:24:07,216 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:24:07,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:07" (1/1) ... [2018-11-28 12:24:07,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:07" (1/1) ... [2018-11-28 12:24:07,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:07" (1/1) ... [2018-11-28 12:24:07,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:07" (1/1) ... [2018-11-28 12:24:07,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:07" (1/1) ... [2018-11-28 12:24:07,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:07" (1/1) ... [2018-11-28 12:24:07,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:07" (1/1) ... [2018-11-28 12:24:07,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:24:07,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:24:07,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:24:07,254 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:24:07,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:24:07,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:24:07,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:24:07,293 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:24:07,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 12:24:07,293 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 12:24:07,293 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 12:24:07,293 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 12:24:07,294 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 12:24:07,294 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 12:24:07,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 12:24:07,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 12:24:07,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 12:24:07,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 12:24:07,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 12:24:07,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 12:24:07,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 12:24:07,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 12:24:07,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 12:24:07,295 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 12:24:07,295 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 12:24:07,295 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 12:24:07,295 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 12:24:07,295 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 12:24:07,296 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 12:24:07,296 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 12:24:07,296 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 12:24:07,296 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 12:24:07,296 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 12:24:07,296 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 12:24:07,296 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 12:24:07,296 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 12:24:07,296 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 12:24:07,297 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 12:24:07,297 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 12:24:07,297 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 12:24:07,297 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 12:24:07,297 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 12:24:07,297 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 12:24:07,297 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 12:24:07,297 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 12:24:07,297 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 12:24:07,298 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 12:24:07,298 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 12:24:07,298 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 12:24:07,298 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 12:24:07,298 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 12:24:07,298 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 12:24:07,298 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 12:24:07,298 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 12:24:07,298 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 12:24:07,299 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 12:24:07,299 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 12:24:07,299 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 12:24:07,299 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 12:24:07,299 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 12:24:07,299 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 12:24:07,299 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 12:24:07,299 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 12:24:07,299 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 12:24:07,300 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 12:24:07,300 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 12:24:07,300 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 12:24:07,303 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 12:24:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 12:24:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 12:24:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 12:24:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 12:24:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 12:24:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 12:24:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 12:24:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 12:24:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 12:24:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 12:24:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 12:24:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 12:24:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 12:24:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 12:24:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 12:24:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 12:24:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 12:24:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 12:24:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 12:24:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 12:24:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 12:24:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 12:24:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 12:24:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 12:24:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 12:24:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 12:24:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 12:24:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 12:24:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 12:24:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 12:24:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 12:24:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 12:24:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 12:24:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 12:24:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 12:24:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 12:24:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 12:24:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 12:24:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 12:24:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 12:24:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 12:24:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 12:24:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 12:24:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:24:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:24:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 12:24:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 12:24:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 12:24:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:24:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:24:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:24:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 12:24:07,574 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:24:07,574 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 12:24:07,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:24:07 BoogieIcfgContainer [2018-11-28 12:24:07,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:24:07,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:24:07,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:24:07,577 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:24:07,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:24:06" (1/3) ... [2018-11-28 12:24:07,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c6ece0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:24:07, skipping insertion in model container [2018-11-28 12:24:07,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:07" (2/3) ... [2018-11-28 12:24:07,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c6ece0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:24:07, skipping insertion in model container [2018-11-28 12:24:07,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:24:07" (3/3) ... [2018-11-28 12:24:07,579 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_1_false-valid-memtrack_true-termination.i [2018-11-28 12:24:07,584 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:24:07,590 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-11-28 12:24:07,599 INFO L257 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2018-11-28 12:24:07,615 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:24:07,616 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:24:07,616 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 12:24:07,616 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:24:07,616 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:24:07,616 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:24:07,616 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:24:07,616 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:24:07,616 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:24:07,626 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-28 12:24:07,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 12:24:07,632 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:24:07,633 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:24:07,634 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr8REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION]=== [2018-11-28 12:24:07,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:24:07,638 INFO L82 PathProgramCache]: Analyzing trace with hash 222801288, now seen corresponding path program 1 times [2018-11-28 12:24:07,639 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:24:07,639 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:24:07,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:24:07,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:24:07,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:24:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:24:07,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:24:07,748 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:24:07,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:24:07,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:24:07,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:24:07,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:24:07,765 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2018-11-28 12:24:07,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:24:07,820 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2018-11-28 12:24:07,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:24:07,821 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 12:24:07,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:24:07,827 INFO L225 Difference]: With dead ends: 25 [2018-11-28 12:24:07,827 INFO L226 Difference]: Without dead ends: 22 [2018-11-28 12:24:07,829 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:24:07,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-28 12:24:07,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-28 12:24:07,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-28 12:24:07,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2018-11-28 12:24:07,850 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2018-11-28 12:24:07,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:24:07,850 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2018-11-28 12:24:07,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:24:07,851 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2018-11-28 12:24:07,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 12:24:07,851 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:24:07,851 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:24:07,851 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr8REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION]=== [2018-11-28 12:24:07,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:24:07,851 INFO L82 PathProgramCache]: Analyzing trace with hash 222801289, now seen corresponding path program 1 times [2018-11-28 12:24:07,852 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:24:07,852 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:24:07,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:24:07,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:24:07,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:24:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:24:07,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:24:07,895 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:24:07,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:24:07,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:24:07,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:24:07,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:24:07,896 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 3 states. [2018-11-28 12:24:07,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:24:07,925 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-11-28 12:24:07,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:24:07,925 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 12:24:07,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:24:07,925 INFO L225 Difference]: With dead ends: 17 [2018-11-28 12:24:07,926 INFO L226 Difference]: Without dead ends: 17 [2018-11-28 12:24:07,926 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:24:07,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-28 12:24:07,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-28 12:24:07,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-28 12:24:07,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-11-28 12:24:07,928 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2018-11-28 12:24:07,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:24:07,928 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-11-28 12:24:07,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:24:07,928 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-11-28 12:24:07,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 12:24:07,928 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:24:07,929 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:24:07,929 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr8REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION]=== [2018-11-28 12:24:07,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:24:07,929 INFO L82 PathProgramCache]: Analyzing trace with hash 88169612, now seen corresponding path program 1 times [2018-11-28 12:24:07,929 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:24:07,929 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:24:07,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:24:07,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:24:07,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:24:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:24:07,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:24:07,974 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:24:07,974 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:24:07,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:24:07,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:24:07,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:24:07,975 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2018-11-28 12:24:08,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:24:08,005 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2018-11-28 12:24:08,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:24:08,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-28 12:24:08,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:24:08,006 INFO L225 Difference]: With dead ends: 21 [2018-11-28 12:24:08,006 INFO L226 Difference]: Without dead ends: 21 [2018-11-28 12:24:08,006 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:24:08,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-28 12:24:08,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2018-11-28 12:24:08,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-28 12:24:08,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-11-28 12:24:08,008 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2018-11-28 12:24:08,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:24:08,009 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2018-11-28 12:24:08,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:24:08,009 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-11-28 12:24:08,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 12:24:08,009 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:24:08,009 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:24:08,009 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr8REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION]=== [2018-11-28 12:24:08,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:24:08,010 INFO L82 PathProgramCache]: Analyzing trace with hash 235932972, now seen corresponding path program 1 times [2018-11-28 12:24:08,010 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:24:08,010 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:24:08,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:24:08,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:24:08,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:24:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:24:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:24:08,046 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:24:08,054 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 12:24:08,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:24:08 BoogieIcfgContainer [2018-11-28 12:24:08,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:24:08,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:24:08,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:24:08,062 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:24:08,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:24:07" (3/4) ... [2018-11-28 12:24:08,065 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:24:08,065 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:24:08,066 INFO L168 Benchmark]: Toolchain (without parser) took 1151.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 949.5 MB in the beginning and 1.0 GB in the end (delta: -67.7 MB). Peak memory consumption was 54.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:24:08,067 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:24:08,067 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:24:08,068 INFO L168 Benchmark]: Boogie Preprocessor took 38.43 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:24:08,068 INFO L168 Benchmark]: RCFGBuilder took 320.28 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: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:24:08,068 INFO L168 Benchmark]: TraceAbstraction took 486.28 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: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:24:08,069 INFO L168 Benchmark]: Witness Printer took 3.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:24:08,071 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 299.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.43 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 320.28 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: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 486.28 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: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 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) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 620]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 620. Possible FailurePath: [L622-L629] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L630] data.p0 = malloc(37U) VAL [data={40:0}, malloc(37U)={39:0}] [L631] COND FALSE !(__VERIFIER_nondet_int()) [L634] data.str.p2 = 30 VAL [data={40:0}, malloc(37U)={39:0}] [L636] EXPR data.str.p2 VAL [data={40:0}, data.str.p2=30, malloc(37U)={39:0}] [L636] COND FALSE !(25 > data.str.p2) [L639] return 0; [L639] return 0; VAL [\result=0, malloc(37U)={39:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 11 error locations. UNSAFE Result, 0.4s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 42 SDtfs, 26 SDslu, 37 SDs, 0 SdLazy, 38 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 443 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:24:09,546 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:24:09,547 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:24:09,553 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:24:09,553 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:24:09,554 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:24:09,554 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:24:09,555 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:24:09,556 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:24:09,556 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:24:09,557 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:24:09,557 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:24:09,558 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:24:09,558 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:24:09,559 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:24:09,559 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:24:09,559 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:24:09,560 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:24:09,562 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:24:09,562 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:24:09,563 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:24:09,564 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:24:09,565 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:24:09,565 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:24:09,565 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:24:09,565 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:24:09,566 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:24:09,566 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:24:09,567 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:24:09,567 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:24:09,568 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:24:09,569 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:24:09,569 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:24:09,569 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:24:09,569 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:24:09,570 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:24:09,570 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2018-11-28 12:24:09,580 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:24:09,580 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:24:09,581 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:24:09,581 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:24:09,581 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:24:09,582 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:24:09,582 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:24:09,582 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:24:09,582 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:24:09,582 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:24:09,582 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:24:09,582 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:24:09,582 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:24:09,583 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 12:24:09,583 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 12:24:09,583 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 12:24:09,583 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:24:09,583 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 12:24:09,583 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 12:24:09,583 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:24:09,583 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:24:09,584 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:24:09,584 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:24:09,584 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:24:09,584 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:24:09,584 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:24:09,584 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:24:09,584 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:24:09,584 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 12:24:09,584 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:24:09,584 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 12:24:09,585 INFO L133 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 724adc6a4f2ec76770ad6e25afc3fbe94cdc2656 [2018-11-28 12:24:09,610 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:24:09,617 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:24:09,619 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:24:09,620 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:24:09,621 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:24:09,621 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i [2018-11-28 12:24:09,657 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/data/dac6ad79f/48aa68a4f2304aeab8004cc5f282d685/FLAG625c90f4c [2018-11-28 12:24:10,085 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:24:10,086 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i [2018-11-28 12:24:10,094 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/data/dac6ad79f/48aa68a4f2304aeab8004cc5f282d685/FLAG625c90f4c [2018-11-28 12:24:10,102 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/data/dac6ad79f/48aa68a4f2304aeab8004cc5f282d685 [2018-11-28 12:24:10,104 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:24:10,105 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 12:24:10,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:24:10,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:24:10,108 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:24:10,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:24:10" (1/1) ... [2018-11-28 12:24:10,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78a90c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:10, skipping insertion in model container [2018-11-28 12:24:10,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:24:10" (1/1) ... [2018-11-28 12:24:10,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:24:10,142 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:24:10,337 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:24:10,342 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:24:10,376 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:24:10,420 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:24:10,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:10 WrapperNode [2018-11-28 12:24:10,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:24:10,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:24:10,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:24:10,422 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:24:10,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:10" (1/1) ... [2018-11-28 12:24:10,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:10" (1/1) ... [2018-11-28 12:24:10,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:10" (1/1) ... [2018-11-28 12:24:10,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:10" (1/1) ... [2018-11-28 12:24:10,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:10" (1/1) ... [2018-11-28 12:24:10,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:10" (1/1) ... [2018-11-28 12:24:10,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:10" (1/1) ... [2018-11-28 12:24:10,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:24:10,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:24:10,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:24:10,502 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:24:10,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:24:10,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:24:10,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:24:10,536 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:24:10,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 12:24:10,536 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 12:24:10,536 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 12:24:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 12:24:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 12:24:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 12:24:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 12:24:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 12:24:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 12:24:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 12:24:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 12:24:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 12:24:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 12:24:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 12:24:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 12:24:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 12:24:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 12:24:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 12:24:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 12:24:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 12:24:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 12:24:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 12:24:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 12:24:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 12:24:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 12:24:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 12:24:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 12:24:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 12:24:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 12:24:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 12:24:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 12:24:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 12:24:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 12:24:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 12:24:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 12:24:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 12:24:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 12:24:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 12:24:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 12:24:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 12:24:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 12:24:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 12:24:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 12:24:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 12:24:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 12:24:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 12:24:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 12:24:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 12:24:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 12:24:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 12:24:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 12:24:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 12:24:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 12:24:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 12:24:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 12:24:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 12:24:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 12:24:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 12:24:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 12:24:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 12:24:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 12:24:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 12:24:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 12:24:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 12:24:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 12:24:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 12:24:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 12:24:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 12:24:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 12:24:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 12:24:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 12:24:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 12:24:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 12:24:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 12:24:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 12:24:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 12:24:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 12:24:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 12:24:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 12:24:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 12:24:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 12:24:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 12:24:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 12:24:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 12:24:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 12:24:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 12:24:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 12:24:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 12:24:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 12:24:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 12:24:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 12:24:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 12:24:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 12:24:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 12:24:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 12:24:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 12:24:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 12:24:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 12:24:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 12:24:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 12:24:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 12:24:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 12:24:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 12:24:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:24:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:24:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 12:24:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 12:24:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 12:24:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2018-11-28 12:24:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:24:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:24:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:24:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2018-11-28 12:24:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 12:24:10,844 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:24:10,845 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 12:24:10,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:24:10 BoogieIcfgContainer [2018-11-28 12:24:10,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:24:10,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:24:10,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:24:10,847 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:24:10,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:24:10" (1/3) ... [2018-11-28 12:24:10,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657eb9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:24:10, skipping insertion in model container [2018-11-28 12:24:10,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:24:10" (2/3) ... [2018-11-28 12:24:10,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657eb9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:24:10, skipping insertion in model container [2018-11-28 12:24:10,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:24:10" (3/3) ... [2018-11-28 12:24:10,850 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_1_false-valid-memtrack_true-termination.i [2018-11-28 12:24:10,858 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:24:10,864 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-11-28 12:24:10,877 INFO L257 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2018-11-28 12:24:10,892 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:24:10,893 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:24:10,893 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 12:24:10,893 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:24:10,893 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:24:10,893 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:24:10,893 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:24:10,893 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:24:10,893 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:24:10,901 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-28 12:24:10,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 12:24:10,908 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:24:10,909 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:24:10,910 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 12:24:10,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:24:10,914 INFO L82 PathProgramCache]: Analyzing trace with hash -664733145, now seen corresponding path program 1 times [2018-11-28 12:24:10,916 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:24:10,916 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:24:10,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:24:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:24:10,957 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:24:10,985 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-28 12:24:10,996 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-28 12:24:10,997 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:24:11,003 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:24:11,007 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 12:24:11,008 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2018-11-28 12:24:11,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:24:11,019 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:24:11,021 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:24:11,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:24:11,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:24:11,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:24:11,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:24:11,033 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2018-11-28 12:24:11,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:24:11,097 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-11-28 12:24:11,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:24:11,099 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 12:24:11,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:24:11,105 INFO L225 Difference]: With dead ends: 24 [2018-11-28 12:24:11,105 INFO L226 Difference]: Without dead ends: 21 [2018-11-28 12:24:11,106 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:24:11,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-28 12:24:11,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-28 12:24:11,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-28 12:24:11,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-11-28 12:24:11,127 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 7 [2018-11-28 12:24:11,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:24:11,127 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-11-28 12:24:11,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:24:11,128 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-11-28 12:24:11,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 12:24:11,128 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:24:11,128 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:24:11,128 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 12:24:11,129 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:24:11,129 INFO L82 PathProgramCache]: Analyzing trace with hash -664733144, now seen corresponding path program 1 times [2018-11-28 12:24:11,129 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:24:11,129 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:24:11,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:24:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:24:11,161 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:24:11,177 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-28 12:24:11,181 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:24:11,182 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-11-28 12:24:11,183 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:24:11,199 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:24:11,214 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-28 12:24:11,214 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 12:24:11,225 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 12:24:11,226 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2018-11-28 12:24:11,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:24:11,237 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:24:11,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:24:11,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:24:11,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:24:11,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:24:11,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:24:11,240 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 3 states. [2018-11-28 12:24:11,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:24:11,284 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2018-11-28 12:24:11,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:24:11,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 12:24:11,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:24:11,285 INFO L225 Difference]: With dead ends: 16 [2018-11-28 12:24:11,285 INFO L226 Difference]: Without dead ends: 16 [2018-11-28 12:24:11,286 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:24:11,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-28 12:24:11,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-28 12:24:11,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 12:24:11,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-11-28 12:24:11,287 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2018-11-28 12:24:11,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:24:11,287 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-11-28 12:24:11,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:24:11,288 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-28 12:24:11,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 12:24:11,289 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:24:11,289 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:24:11,289 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 12:24:11,289 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:24:11,289 INFO L82 PathProgramCache]: Analyzing trace with hash -828868173, now seen corresponding path program 1 times [2018-11-28 12:24:11,289 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:24:11,290 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:24:11,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:24:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:24:11,347 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:24:11,352 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-28 12:24:11,356 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-28 12:24:11,356 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:24:11,359 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:24:11,368 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:24:11,369 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-11-28 12:24:11,385 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-11-28 12:24:11,397 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 5 [2018-11-28 12:24:11,397 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:24:11,400 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:24:11,402 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:24:11,402 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2018-11-28 12:24:11,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:24:11,415 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:24:11,416 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:24:11,416 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:24:11,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:24:11,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:24:11,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:24:11,417 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 4 states. [2018-11-28 12:24:11,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:24:11,506 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2018-11-28 12:24:11,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:24:11,506 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-11-28 12:24:11,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:24:11,507 INFO L225 Difference]: With dead ends: 20 [2018-11-28 12:24:11,507 INFO L226 Difference]: Without dead ends: 20 [2018-11-28 12:24:11,507 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:24:11,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-28 12:24:11,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2018-11-28 12:24:11,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 12:24:11,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-11-28 12:24:11,510 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-11-28 12:24:11,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:24:11,510 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-11-28 12:24:11,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:24:11,510 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-11-28 12:24:11,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 12:24:11,511 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:24:11,511 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:24:11,511 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 12:24:11,511 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:24:11,511 INFO L82 PathProgramCache]: Analyzing trace with hash -681104813, now seen corresponding path program 1 times [2018-11-28 12:24:11,511 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:24:11,511 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc9ee6de-8b85-47eb-a178-39c1df1383be/bin-2019/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:24:11,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:24:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:24:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:24:11,614 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:24:11,624 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 12:24:11,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:24:11 BoogieIcfgContainer [2018-11-28 12:24:11,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:24:11,632 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:24:11,632 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:24:11,633 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:24:11,633 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:24:10" (3/4) ... [2018-11-28 12:24:11,635 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:24:11,636 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:24:11,636 INFO L168 Benchmark]: Toolchain (without parser) took 1532.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 938.0 MB in the beginning and 994.7 MB in the end (delta: -56.7 MB). Peak memory consumption was 92.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:24:11,637 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:24:11,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.77 ms. Allocated memory is still 1.0 GB. Free memory was 938.0 MB in the beginning and 916.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:24:11,638 INFO L168 Benchmark]: Boogie Preprocessor took 80.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 916.5 MB in the beginning and 1.1 GB in the end (delta: -221.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:24:11,638 INFO L168 Benchmark]: RCFGBuilder took 343.00 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: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:24:11,639 INFO L168 Benchmark]: TraceAbstraction took 786.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 994.7 MB in the end (delta: 98.5 MB). Peak memory consumption was 98.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:24:11,639 INFO L168 Benchmark]: Witness Printer took 3.26 ms. Allocated memory is still 1.2 GB. Free memory is still 994.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:24:11,641 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 315.77 ms. Allocated memory is still 1.0 GB. Free memory was 938.0 MB in the beginning and 916.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 80.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 916.5 MB in the beginning and 1.1 GB in the end (delta: -221.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 343.00 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: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 786.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 994.7 MB in the end (delta: 98.5 MB). Peak memory consumption was 98.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.26 ms. Allocated memory is still 1.2 GB. Free memory is still 994.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 620]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 620. Possible FailurePath: [L622-L629] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L630] data.p0 = malloc(37U) VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L631] COND FALSE !(__VERIFIER_nondet_int()) [L634] data.str.p2 = 30 VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L636] EXPR data.str.p2 VAL [data={-2147483647:0}, data.str.p2=30, malloc(37U)={-2147483648:0}] [L636] COND FALSE !(25 > data.str.p2) [L639] return 0; [L639] return 0; VAL [\result=0, malloc(37U)={-2147483648:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 11 error locations. UNSAFE Result, 0.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 SDtfs, 24 SDslu, 35 SDs, 0 SdLazy, 38 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 24 ConstructedInterpolants, 1 QuantifiedInterpolants, 492 SizeOfPredicates, 5 NumberOfNonLiveVariables, 125 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...