./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-properties/list_flag_true-unreach-call_false-valid-memtrack.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_flag_true-unreach-call_false-valid-memtrack.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/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 22b342a177abe6e71ce9cf9da662ebff6e69063a ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_flag_true-unreach-call_false-valid-memtrack.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/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 22b342a177abe6e71ce9cf9da662ebff6e69063a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 07:50:58,767 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 07:50:58,768 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 07:50:58,774 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 07:50:58,774 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 07:50:58,774 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 07:50:58,775 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 07:50:58,776 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 07:50:58,776 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 07:50:58,777 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 07:50:58,777 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 07:50:58,777 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 07:50:58,778 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 07:50:58,778 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 07:50:58,779 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 07:50:58,779 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 07:50:58,780 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 07:50:58,780 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 07:50:58,781 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 07:50:58,782 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 07:50:58,782 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 07:50:58,783 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 07:50:58,784 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 07:50:58,784 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 07:50:58,784 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 07:50:58,785 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 07:50:58,785 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 07:50:58,786 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 07:50:58,786 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 07:50:58,786 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 07:50:58,787 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 07:50:58,787 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 07:50:58,787 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 07:50:58,787 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 07:50:58,788 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 07:50:58,788 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 07:50:58,788 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-12-08 07:50:58,795 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 07:50:58,795 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 07:50:58,796 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 07:50:58,796 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 07:50:58,796 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 07:50:58,796 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 07:50:58,796 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 07:50:58,796 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 07:50:58,796 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 07:50:58,796 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 07:50:58,797 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 07:50:58,797 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 07:50:58,797 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 07:50:58,797 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 07:50:58,797 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 07:50:58,797 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 07:50:58,797 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 07:50:58,797 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 07:50:58,797 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 07:50:58,797 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 07:50:58,797 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 07:50:58,797 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 07:50:58,798 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 07:50:58,798 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 07:50:58,798 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 07:50:58,798 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 07:50:58,798 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 07:50:58,798 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 07:50:58,798 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_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/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 -> 22b342a177abe6e71ce9cf9da662ebff6e69063a [2018-12-08 07:50:58,816 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 07:50:58,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 07:50:58,826 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 07:50:58,827 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 07:50:58,827 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 07:50:58,828 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/../../sv-benchmarks/c/list-properties/list_flag_true-unreach-call_false-valid-memtrack.i [2018-12-08 07:50:58,863 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/data/f28b24e76/2f6bc8aaf8d748f19a8fd380ccafa56f/FLAG8470e6a17 [2018-12-08 07:50:59,329 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 07:50:59,330 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/sv-benchmarks/c/list-properties/list_flag_true-unreach-call_false-valid-memtrack.i [2018-12-08 07:50:59,336 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/data/f28b24e76/2f6bc8aaf8d748f19a8fd380ccafa56f/FLAG8470e6a17 [2018-12-08 07:50:59,344 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/data/f28b24e76/2f6bc8aaf8d748f19a8fd380ccafa56f [2018-12-08 07:50:59,346 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 07:50:59,346 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-08 07:50:59,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 07:50:59,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 07:50:59,349 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 07:50:59,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:50:59" (1/1) ... [2018-12-08 07:50:59,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68649384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:50:59, skipping insertion in model container [2018-12-08 07:50:59,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:50:59" (1/1) ... [2018-12-08 07:50:59,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 07:50:59,376 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 07:50:59,523 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 07:50:59,529 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 07:50:59,585 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 07:50:59,611 INFO L195 MainTranslator]: Completed translation [2018-12-08 07:50:59,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:50:59 WrapperNode [2018-12-08 07:50:59,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 07:50:59,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 07:50:59,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 07:50:59,611 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 07:50:59,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:50:59" (1/1) ... [2018-12-08 07:50:59,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:50:59" (1/1) ... [2018-12-08 07:50:59,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:50:59" (1/1) ... [2018-12-08 07:50:59,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:50:59" (1/1) ... [2018-12-08 07:50:59,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:50:59" (1/1) ... [2018-12-08 07:50:59,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:50:59" (1/1) ... [2018-12-08 07:50:59,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:50:59" (1/1) ... [2018-12-08 07:50:59,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 07:50:59,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 07:50:59,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 07:50:59,652 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 07:50:59,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:50:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/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 [2018-12-08 07:50:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 07:50:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 07:50:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2018-12-08 07:50:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 07:50:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-12-08 07:50:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-12-08 07:50:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-08 07:50:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-08 07:50:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-08 07:50:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-08 07:50:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-08 07:50:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-08 07:50:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-08 07:50:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-08 07:50:59,686 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-08 07:50:59,686 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-08 07:50:59,686 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-08 07:50:59,686 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-08 07:50:59,686 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-08 07:50:59,686 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-08 07:50:59,686 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-08 07:50:59,686 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-08 07:50:59,686 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-08 07:50:59,686 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-08 07:50:59,686 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-08 07:50:59,686 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-08 07:50:59,686 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-08 07:50:59,686 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-08 07:50:59,687 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-08 07:50:59,687 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-08 07:50:59,687 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-08 07:50:59,687 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-08 07:50:59,687 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-08 07:50:59,687 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-08 07:50:59,687 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-08 07:50:59,687 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-08 07:50:59,687 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-08 07:50:59,687 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-08 07:50:59,687 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-08 07:50:59,687 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-08 07:50:59,687 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-08 07:50:59,687 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-08 07:50:59,687 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-08 07:50:59,687 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-08 07:50:59,688 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-08 07:50:59,688 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-08 07:50:59,688 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-08 07:50:59,688 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-08 07:50:59,688 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-08 07:50:59,688 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-08 07:50:59,688 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-08 07:50:59,688 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-08 07:50:59,688 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-08 07:50:59,688 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-08 07:50:59,688 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-08 07:50:59,688 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-08 07:50:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-08 07:50:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-08 07:50:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-08 07:50:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-08 07:50:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-08 07:50:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-08 07:50:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-08 07:50:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-08 07:50:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-08 07:50:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-08 07:50:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-08 07:50:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-08 07:50:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-08 07:50:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-08 07:50:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-12-08 07:50:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-08 07:50:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-08 07:50:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-08 07:50:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-08 07:50:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-08 07:50:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-08 07:50:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-08 07:50:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-08 07:50:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-08 07:50:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-08 07:50:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-08 07:50:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-08 07:50:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-08 07:50:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-08 07:50:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-08 07:50:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-08 07:50:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-08 07:50:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-08 07:50:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-08 07:50:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-08 07:50:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-08 07:50:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-08 07:50:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-08 07:50:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-08 07:50:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-08 07:50:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-08 07:50:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-08 07:50:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-08 07:50:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-08 07:50:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-08 07:50:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-08 07:50:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-08 07:50:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-08 07:50:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-08 07:50:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-08 07:50:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-08 07:50:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2018-12-08 07:50:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 07:50:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 07:50:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 07:50:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 07:50:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 07:50:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 07:50:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 07:50:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 07:50:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 07:50:59,906 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 07:50:59,906 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-12-08 07:50:59,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:50:59 BoogieIcfgContainer [2018-12-08 07:50:59,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 07:50:59,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 07:50:59,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 07:50:59,908 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 07:50:59,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 07:50:59" (1/3) ... [2018-12-08 07:50:59,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fc1860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:50:59, skipping insertion in model container [2018-12-08 07:50:59,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:50:59" (2/3) ... [2018-12-08 07:50:59,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fc1860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:50:59, skipping insertion in model container [2018-12-08 07:50:59,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:50:59" (3/3) ... [2018-12-08 07:50:59,911 INFO L112 eAbstractionObserver]: Analyzing ICFG list_flag_true-unreach-call_false-valid-memtrack.i [2018-12-08 07:50:59,918 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 07:50:59,924 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2018-12-08 07:50:59,937 INFO L257 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2018-12-08 07:50:59,952 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 07:50:59,952 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 07:50:59,952 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 07:50:59,952 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 07:50:59,952 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 07:50:59,952 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 07:50:59,952 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 07:50:59,952 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 07:50:59,952 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 07:50:59,961 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-12-08 07:50:59,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 07:50:59,966 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 07:50:59,967 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 07:50:59,968 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-08 07:50:59,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:50:59,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1106867600, now seen corresponding path program 1 times [2018-12-08 07:50:59,972 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:50:59,973 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:51:00,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:51:00,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:51:00,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:51:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:51:00,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 07:51:00,055 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 07:51:00,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 07:51:00,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 07:51:00,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 07:51:00,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 07:51:00,066 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2018-12-08 07:51:00,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 07:51:00,078 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2018-12-08 07:51:00,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 07:51:00,079 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-12-08 07:51:00,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 07:51:00,084 INFO L225 Difference]: With dead ends: 61 [2018-12-08 07:51:00,084 INFO L226 Difference]: Without dead ends: 53 [2018-12-08 07:51:00,085 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 07:51:00,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-12-08 07:51:00,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-12-08 07:51:00,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-12-08 07:51:00,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2018-12-08 07:51:00,106 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 10 [2018-12-08 07:51:00,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 07:51:00,107 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2018-12-08 07:51:00,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 07:51:00,107 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2018-12-08 07:51:00,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 07:51:00,107 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 07:51:00,107 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 07:51:00,107 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-08 07:51:00,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:51:00,108 INFO L82 PathProgramCache]: Analyzing trace with hash 46809097, now seen corresponding path program 1 times [2018-12-08 07:51:00,108 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:51:00,108 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:51:00,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:51:00,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:51:00,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:51:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:51:00,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 07:51:00,148 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 07:51:00,148 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 07:51:00,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 07:51:00,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 07:51:00,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 07:51:00,150 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 4 states. [2018-12-08 07:51:00,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 07:51:00,228 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2018-12-08 07:51:00,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 07:51:00,228 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-12-08 07:51:00,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 07:51:00,230 INFO L225 Difference]: With dead ends: 61 [2018-12-08 07:51:00,230 INFO L226 Difference]: Without dead ends: 61 [2018-12-08 07:51:00,230 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 07:51:00,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-12-08 07:51:00,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2018-12-08 07:51:00,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-12-08 07:51:00,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2018-12-08 07:51:00,234 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 11 [2018-12-08 07:51:00,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 07:51:00,234 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2018-12-08 07:51:00,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 07:51:00,234 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2018-12-08 07:51:00,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 07:51:00,234 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 07:51:00,234 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 07:51:00,235 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-08 07:51:00,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:51:00,235 INFO L82 PathProgramCache]: Analyzing trace with hash 46809098, now seen corresponding path program 1 times [2018-12-08 07:51:00,235 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:51:00,235 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:51:00,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:51:00,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:51:00,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:51:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:51:00,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 07:51:00,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 07:51:00,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 07:51:00,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 07:51:00,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 07:51:00,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 07:51:00,269 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand 4 states. [2018-12-08 07:51:00,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 07:51:00,333 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2018-12-08 07:51:00,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 07:51:00,333 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-12-08 07:51:00,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 07:51:00,334 INFO L225 Difference]: With dead ends: 72 [2018-12-08 07:51:00,334 INFO L226 Difference]: Without dead ends: 72 [2018-12-08 07:51:00,334 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 07:51:00,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-12-08 07:51:00,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 65. [2018-12-08 07:51:00,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-12-08 07:51:00,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2018-12-08 07:51:00,339 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 11 [2018-12-08 07:51:00,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 07:51:00,339 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2018-12-08 07:51:00,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 07:51:00,339 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2018-12-08 07:51:00,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-08 07:51:00,340 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 07:51:00,340 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 07:51:00,340 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-08 07:51:00,340 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:51:00,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1944909317, now seen corresponding path program 1 times [2018-12-08 07:51:00,340 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:51:00,341 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:51:00,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:51:00,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:51:00,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:51:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:51:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:51:00,376 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 07:51:00,384 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-08 07:51:00,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 07:51:00 BoogieIcfgContainer [2018-12-08 07:51:00,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 07:51:00,391 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 07:51:00,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 07:51:00,391 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 07:51:00,392 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:50:59" (3/4) ... [2018-12-08 07:51:00,394 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 07:51:00,394 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 07:51:00,394 INFO L168 Benchmark]: Toolchain (without parser) took 1048.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 957.1 MB in the beginning and 996.8 MB in the end (delta: -39.7 MB). Peak memory consumption was 90.3 MB. Max. memory is 11.5 GB. [2018-12-08 07:51:00,395 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 07:51:00,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -156.9 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. [2018-12-08 07:51:00,396 INFO L168 Benchmark]: Boogie Preprocessor took 40.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 07:51:00,396 INFO L168 Benchmark]: RCFGBuilder took 254.08 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: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. [2018-12-08 07:51:00,396 INFO L168 Benchmark]: TraceAbstraction took 484.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.8 MB in the end (delta: 69.4 MB). Peak memory consumption was 69.4 MB. Max. memory is 11.5 GB. [2018-12-08 07:51:00,396 INFO L168 Benchmark]: Witness Printer took 2.62 ms. Allocated memory is still 1.2 GB. Free memory is still 996.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 07:51:00,398 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 264.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -156.9 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 254.08 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: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 484.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.8 MB in the end (delta: 69.4 MB). Peak memory consumption was 69.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.62 ms. Allocated memory is still 1.2 GB. Free memory is still 996.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 626]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 626. Possible FailurePath: [L627] int flag = __VERIFIER_nondet_int(); [L628] List p, a, t; [L629] a = (List) malloc(sizeof(struct node)) VAL [a={12:0}, flag=0, malloc(sizeof(struct node))={12:0}] [L630] COND FALSE !(a == 0) VAL [a={12:0}, flag=0, malloc(sizeof(struct node))={12:0}] [L631] p = a VAL [a={12:0}, flag=0, malloc(sizeof(struct node))={12:0}, p={12:0}] [L632] COND FALSE !(__VERIFIER_nondet_int()) [L643] p->h = 3 VAL [a={12:0}, flag=0, malloc(sizeof(struct node))={12:0}, p={12:0}] [L644] p = a VAL [a={12:0}, flag=0, malloc(sizeof(struct node))={12:0}, p={12:0}] [L645] COND FALSE !(\read(flag)) VAL [a={12:0}, flag=0, malloc(sizeof(struct node))={12:0}, p={12:0}] [L649] EXPR p->h VAL [a={12:0}, flag=0, malloc(sizeof(struct node))={12:0}, p={12:0}, p->h=3] [L649] COND FALSE !(p->h == 2) [L651] EXPR p->h VAL [a={12:0}, flag=0, malloc(sizeof(struct node))={12:0}, p={12:0}, p->h=3] [L651] COND FALSE !(p->h != 3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 63 locations, 21 error locations. UNSAFE Result, 0.4s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 117 SDtfs, 181 SDslu, 35 SDs, 0 SdLazy, 102 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=3, 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, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 881 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-08 07:51:01,700 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 07:51:01,701 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 07:51:01,707 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 07:51:01,708 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 07:51:01,708 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 07:51:01,709 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 07:51:01,710 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 07:51:01,711 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 07:51:01,712 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 07:51:01,713 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 07:51:01,713 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 07:51:01,713 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 07:51:01,714 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 07:51:01,714 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 07:51:01,714 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 07:51:01,715 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 07:51:01,716 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 07:51:01,717 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 07:51:01,718 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 07:51:01,718 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 07:51:01,719 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 07:51:01,720 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 07:51:01,720 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 07:51:01,720 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 07:51:01,721 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 07:51:01,722 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 07:51:01,722 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 07:51:01,722 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 07:51:01,723 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 07:51:01,723 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 07:51:01,724 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 07:51:01,724 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 07:51:01,724 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 07:51:01,725 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 07:51:01,725 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 07:51:01,725 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2018-12-08 07:51:01,735 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 07:51:01,735 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 07:51:01,736 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 07:51:01,736 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 07:51:01,737 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 07:51:01,737 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 07:51:01,737 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 07:51:01,737 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 07:51:01,737 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 07:51:01,737 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 07:51:01,738 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 07:51:01,738 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 07:51:01,738 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 07:51:01,738 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 07:51:01,738 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 07:51:01,738 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 07:51:01,738 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 07:51:01,739 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 07:51:01,739 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 07:51:01,739 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 07:51:01,739 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 07:51:01,739 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 07:51:01,739 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 07:51:01,740 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 07:51:01,740 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 07:51:01,740 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 07:51:01,740 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 07:51:01,740 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 07:51:01,740 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-08 07:51:01,741 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 07:51:01,741 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 07:51:01,741 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_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/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 -> 22b342a177abe6e71ce9cf9da662ebff6e69063a [2018-12-08 07:51:01,765 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 07:51:01,772 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 07:51:01,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 07:51:01,775 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 07:51:01,775 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 07:51:01,776 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/../../sv-benchmarks/c/list-properties/list_flag_true-unreach-call_false-valid-memtrack.i [2018-12-08 07:51:01,811 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/data/34e84f9ac/7446d8822d9242f08b57a3de6b53430d/FLAGec013ca73 [2018-12-08 07:51:02,230 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 07:51:02,231 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/sv-benchmarks/c/list-properties/list_flag_true-unreach-call_false-valid-memtrack.i [2018-12-08 07:51:02,237 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/data/34e84f9ac/7446d8822d9242f08b57a3de6b53430d/FLAGec013ca73 [2018-12-08 07:51:02,244 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/bin-2019/uautomizer/data/34e84f9ac/7446d8822d9242f08b57a3de6b53430d [2018-12-08 07:51:02,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 07:51:02,247 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-08 07:51:02,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 07:51:02,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 07:51:02,250 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 07:51:02,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:51:02" (1/1) ... [2018-12-08 07:51:02,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fe97d50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:51:02, skipping insertion in model container [2018-12-08 07:51:02,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:51:02" (1/1) ... [2018-12-08 07:51:02,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 07:51:02,273 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 07:51:02,422 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 07:51:02,431 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 07:51:02,457 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 07:51:02,525 INFO L195 MainTranslator]: Completed translation [2018-12-08 07:51:02,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:51:02 WrapperNode [2018-12-08 07:51:02,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 07:51:02,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 07:51:02,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 07:51:02,526 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 07:51:02,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:51:02" (1/1) ... [2018-12-08 07:51:02,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:51:02" (1/1) ... [2018-12-08 07:51:02,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:51:02" (1/1) ... [2018-12-08 07:51:02,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:51:02" (1/1) ... [2018-12-08 07:51:02,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:51:02" (1/1) ... [2018-12-08 07:51:02,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:51:02" (1/1) ... [2018-12-08 07:51:02,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:51:02" (1/1) ... [2018-12-08 07:51:02,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 07:51:02,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 07:51:02,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 07:51:02,558 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 07:51:02,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:51:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/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 [2018-12-08 07:51:02,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 07:51:02,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 07:51:02,588 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2018-12-08 07:51:02,588 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 07:51:02,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-12-08 07:51:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-12-08 07:51:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-08 07:51:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-08 07:51:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-08 07:51:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-08 07:51:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-08 07:51:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-08 07:51:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-08 07:51:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-08 07:51:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-08 07:51:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-08 07:51:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-08 07:51:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-08 07:51:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-08 07:51:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-08 07:51:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-08 07:51:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-08 07:51:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-08 07:51:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-08 07:51:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-08 07:51:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-08 07:51:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-08 07:51:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-08 07:51:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-08 07:51:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-08 07:51:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-08 07:51:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-08 07:51:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-08 07:51:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-08 07:51:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-08 07:51:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-08 07:51:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-08 07:51:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-08 07:51:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-08 07:51:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-08 07:51:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-08 07:51:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-08 07:51:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-08 07:51:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-08 07:51:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-08 07:51:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-08 07:51:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-08 07:51:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-08 07:51:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-08 07:51:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-08 07:51:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-08 07:51:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-08 07:51:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-08 07:51:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-08 07:51:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-08 07:51:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-08 07:51:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-08 07:51:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-08 07:51:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-08 07:51:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-08 07:51:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-08 07:51:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-08 07:51:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-08 07:51:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-08 07:51:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-08 07:51:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-08 07:51:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-08 07:51:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-08 07:51:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-08 07:51:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-08 07:51:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-12-08 07:51:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-08 07:51:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-08 07:51:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-08 07:51:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-08 07:51:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-08 07:51:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-08 07:51:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-08 07:51:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-08 07:51:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-08 07:51:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-08 07:51:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-08 07:51:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-08 07:51:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-08 07:51:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-08 07:51:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-08 07:51:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-08 07:51:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-08 07:51:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-08 07:51:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-08 07:51:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-08 07:51:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-08 07:51:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-08 07:51:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-08 07:51:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-08 07:51:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-08 07:51:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-08 07:51:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-08 07:51:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-08 07:51:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-08 07:51:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-08 07:51:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-08 07:51:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-08 07:51:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-08 07:51:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-08 07:51:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-08 07:51:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-08 07:51:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2018-12-08 07:51:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 07:51:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 07:51:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 07:51:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 07:51:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 07:51:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 07:51:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 07:51:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 07:51:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 07:51:02,859 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 07:51:02,859 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-12-08 07:51:02,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:51:02 BoogieIcfgContainer [2018-12-08 07:51:02,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 07:51:02,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 07:51:02,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 07:51:02,862 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 07:51:02,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 07:51:02" (1/3) ... [2018-12-08 07:51:02,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9b8741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:51:02, skipping insertion in model container [2018-12-08 07:51:02,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:51:02" (2/3) ... [2018-12-08 07:51:02,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9b8741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:51:02, skipping insertion in model container [2018-12-08 07:51:02,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:51:02" (3/3) ... [2018-12-08 07:51:02,864 INFO L112 eAbstractionObserver]: Analyzing ICFG list_flag_true-unreach-call_false-valid-memtrack.i [2018-12-08 07:51:02,872 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 07:51:02,878 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2018-12-08 07:51:02,889 INFO L257 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2018-12-08 07:51:02,903 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 07:51:02,903 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 07:51:02,903 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 07:51:02,903 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 07:51:02,903 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 07:51:02,903 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 07:51:02,903 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 07:51:02,903 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 07:51:02,904 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 07:51:02,912 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2018-12-08 07:51:02,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 07:51:02,917 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 07:51:02,918 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 07:51:02,919 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr6REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2018-12-08 07:51:02,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:51:02,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1826486959, now seen corresponding path program 1 times [2018-12-08 07:51:02,925 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 07:51:02,925 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/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 [2018-12-08 07:51:02,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:51:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:51:02,974 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:51:02,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 07:51:02,988 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 07:51:02,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 07:51:02,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 07:51:02,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 07:51:03,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 07:51:03,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 07:51:03,003 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2018-12-08 07:51:03,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 07:51:03,015 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2018-12-08 07:51:03,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 07:51:03,016 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-12-08 07:51:03,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 07:51:03,020 INFO L225 Difference]: With dead ends: 60 [2018-12-08 07:51:03,020 INFO L226 Difference]: Without dead ends: 52 [2018-12-08 07:51:03,021 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 07:51:03,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-12-08 07:51:03,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-12-08 07:51:03,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-08 07:51:03,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2018-12-08 07:51:03,043 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 10 [2018-12-08 07:51:03,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 07:51:03,043 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2018-12-08 07:51:03,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 07:51:03,044 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2018-12-08 07:51:03,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 07:51:03,044 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 07:51:03,044 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 07:51:03,044 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr6REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2018-12-08 07:51:03,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:51:03,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1826487920, now seen corresponding path program 1 times [2018-12-08 07:51:03,045 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 07:51:03,045 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/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 [2018-12-08 07:51:03,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:51:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:51:03,071 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:51:03,091 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 07:51:03,092 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 07:51:03,097 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 07:51:03,098 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-12-08 07:51:03,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 07:51:03,113 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 07:51:03,114 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 07:51:03,114 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 07:51:03,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 07:51:03,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 07:51:03,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 07:51:03,115 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 4 states. [2018-12-08 07:51:03,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 07:51:03,240 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2018-12-08 07:51:03,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 07:51:03,240 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-12-08 07:51:03,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 07:51:03,242 INFO L225 Difference]: With dead ends: 59 [2018-12-08 07:51:03,242 INFO L226 Difference]: Without dead ends: 59 [2018-12-08 07:51:03,243 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 07:51:03,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-12-08 07:51:03,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 54. [2018-12-08 07:51:03,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-12-08 07:51:03,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2018-12-08 07:51:03,247 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 10 [2018-12-08 07:51:03,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 07:51:03,247 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2018-12-08 07:51:03,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 07:51:03,247 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2018-12-08 07:51:03,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 07:51:03,248 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 07:51:03,248 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 07:51:03,248 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr6REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2018-12-08 07:51:03,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:51:03,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1826487919, now seen corresponding path program 1 times [2018-12-08 07:51:03,249 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 07:51:03,249 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/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 [2018-12-08 07:51:03,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:51:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:51:03,281 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:51:03,286 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 07:51:03,286 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 07:51:03,290 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 07:51:03,290 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-12-08 07:51:03,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 07:51:03,303 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 07:51:03,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 07:51:03,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 07:51:03,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 07:51:03,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 07:51:03,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 07:51:03,305 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand 4 states. [2018-12-08 07:51:03,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 07:51:03,487 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2018-12-08 07:51:03,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 07:51:03,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-12-08 07:51:03,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 07:51:03,488 INFO L225 Difference]: With dead ends: 70 [2018-12-08 07:51:03,489 INFO L226 Difference]: Without dead ends: 70 [2018-12-08 07:51:03,489 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 07:51:03,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-12-08 07:51:03,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 63. [2018-12-08 07:51:03,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-12-08 07:51:03,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2018-12-08 07:51:03,492 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 10 [2018-12-08 07:51:03,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 07:51:03,492 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2018-12-08 07:51:03,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 07:51:03,492 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2018-12-08 07:51:03,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 07:51:03,493 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 07:51:03,493 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 07:51:03,493 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr6REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2018-12-08 07:51:03,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:51:03,493 INFO L82 PathProgramCache]: Analyzing trace with hash 2006915837, now seen corresponding path program 1 times [2018-12-08 07:51:03,494 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 07:51:03,494 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6e7c0ccd-8ab8-477d-a6ab-37f088e576b0/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 [2018-12-08 07:51:03,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:51:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:51:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:51:03,584 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 07:51:03,595 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-08 07:51:03,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 07:51:03 BoogieIcfgContainer [2018-12-08 07:51:03,605 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 07:51:03,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 07:51:03,606 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 07:51:03,606 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 07:51:03,606 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:51:02" (3/4) ... [2018-12-08 07:51:03,609 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 07:51:03,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 07:51:03,609 INFO L168 Benchmark]: Toolchain (without parser) took 1362.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 939.3 MB in the beginning and 977.4 MB in the end (delta: -38.1 MB). Peak memory consumption was 114.5 MB. Max. memory is 11.5 GB. [2018-12-08 07:51:03,610 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 07:51:03,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -199.9 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2018-12-08 07:51:03,611 INFO L168 Benchmark]: Boogie Preprocessor took 31.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-08 07:51:03,612 INFO L168 Benchmark]: RCFGBuilder took 301.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 11.5 GB. [2018-12-08 07:51:03,612 INFO L168 Benchmark]: TraceAbstraction took 745.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.3 MB in the end (delta: 95.2 MB). Peak memory consumption was 95.2 MB. Max. memory is 11.5 GB. [2018-12-08 07:51:03,613 INFO L168 Benchmark]: Witness Printer took 3.22 ms. Allocated memory is still 1.2 GB. Free memory was 984.3 MB in the beginning and 977.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-08 07:51:03,615 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 278.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -199.9 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 301.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 745.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.3 MB in the end (delta: 95.2 MB). Peak memory consumption was 95.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.22 ms. Allocated memory is still 1.2 GB. Free memory was 984.3 MB in the beginning and 977.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 626]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 626. Possible FailurePath: [L627] int flag = __VERIFIER_nondet_int(); [L628] List p, a, t; [L629] a = (List) malloc(sizeof(struct node)) VAL [a={-2147483648:0}, flag=0, malloc(sizeof(struct node))={-2147483648:0}] [L630] COND FALSE !(a == 0) VAL [a={-2147483648:0}, flag=0, malloc(sizeof(struct node))={-2147483648:0}] [L631] p = a VAL [a={-2147483648:0}, flag=0, malloc(sizeof(struct node))={-2147483648:0}, p={-2147483648:0}] [L632] COND FALSE !(__VERIFIER_nondet_int()) [L643] p->h = 3 VAL [a={-2147483648:0}, flag=0, malloc(sizeof(struct node))={-2147483648:0}, p={-2147483648:0}] [L644] p = a VAL [a={-2147483648:0}, flag=0, malloc(sizeof(struct node))={-2147483648:0}, p={-2147483648:0}] [L645] COND FALSE !(\read(flag)) VAL [a={-2147483648:0}, flag=0, malloc(sizeof(struct node))={-2147483648:0}, p={-2147483648:0}] [L649] EXPR p->h VAL [a={-2147483648:0}, flag=0, malloc(sizeof(struct node))={-2147483648:0}, p={-2147483648:0}, p->h=3] [L649] COND FALSE !(p->h == 2) [L651] EXPR p->h VAL [a={-2147483648:0}, flag=0, malloc(sizeof(struct node))={-2147483648:0}, p={-2147483648:0}, p->h=3] [L651] COND FALSE !(p->h != 3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 62 locations, 21 error locations. UNSAFE Result, 0.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 114 SDtfs, 177 SDslu, 33 SDs, 0 SdLazy, 102 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=3, 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, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 747 SizeOfPredicates, 6 NumberOfNonLiveVariables, 114 ConjunctsInSsa, 12 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...