./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_39c2f714-3a3e-47a2-8038-a361ce5d40b6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_39c2f714-3a3e-47a2-8038-a361ce5d40b6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_39c2f714-3a3e-47a2-8038-a361ce5d40b6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_39c2f714-3a3e-47a2-8038-a361ce5d40b6/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_39c2f714-3a3e-47a2-8038-a361ce5d40b6/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_39c2f714-3a3e-47a2-8038-a361ce5d40b6/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 65401fe061f89bb729dffabf74050dfab9fe7d77 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:15:09,610 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:15:09,611 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:15:09,621 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:15:09,622 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:15:09,622 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:15:09,624 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:15:09,625 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:15:09,626 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:15:09,627 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:15:09,628 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:15:09,628 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:15:09,629 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:15:09,630 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:15:09,630 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:15:09,631 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:15:09,631 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:15:09,633 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:15:09,635 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:15:09,636 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:15:09,637 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:15:09,638 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:15:09,640 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:15:09,640 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:15:09,641 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:15:09,642 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:15:09,642 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:15:09,643 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:15:09,643 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:15:09,644 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:15:09,645 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:15:09,645 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:15:09,645 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:15:09,646 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:15:09,647 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:15:09,647 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:15:09,647 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_39c2f714-3a3e-47a2-8038-a361ce5d40b6/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 12:15:09,657 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:15:09,657 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:15:09,658 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:15:09,658 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:15:09,659 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:15:09,659 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:15:09,659 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:15:09,659 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:15:09,660 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:15:09,660 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:15:09,660 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:15:09,660 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:15:09,660 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:15:09,661 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 12:15:09,661 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 12:15:09,661 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 12:15:09,661 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:15:09,661 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:15:09,662 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:15:09,662 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:15:09,662 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:15:09,662 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:15:09,662 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:15:09,663 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:15:09,663 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:15:09,663 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:15:09,663 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:15:09,663 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:15:09,664 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_39c2f714-3a3e-47a2-8038-a361ce5d40b6/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 -> 65401fe061f89bb729dffabf74050dfab9fe7d77 [2018-11-28 12:15:09,694 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:15:09,705 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:15:09,708 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:15:09,710 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:15:09,710 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:15:09,711 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_39c2f714-3a3e-47a2-8038-a361ce5d40b6/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-11-28 12:15:09,766 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_39c2f714-3a3e-47a2-8038-a361ce5d40b6/bin-2019/uautomizer/data/8c82c98fc/f1c8c61fa2b144afb5b62e2af5f0803c/FLAGafbed118f [2018-11-28 12:15:10,156 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:15:10,156 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_39c2f714-3a3e-47a2-8038-a361ce5d40b6/sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-11-28 12:15:10,164 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_39c2f714-3a3e-47a2-8038-a361ce5d40b6/bin-2019/uautomizer/data/8c82c98fc/f1c8c61fa2b144afb5b62e2af5f0803c/FLAGafbed118f [2018-11-28 12:15:10,174 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_39c2f714-3a3e-47a2-8038-a361ce5d40b6/bin-2019/uautomizer/data/8c82c98fc/f1c8c61fa2b144afb5b62e2af5f0803c [2018-11-28 12:15:10,176 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:15:10,177 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 12:15:10,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:15:10,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:15:10,181 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:15:10,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:15:10" (1/1) ... [2018-11-28 12:15:10,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b8e4806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:15:10, skipping insertion in model container [2018-11-28 12:15:10,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:15:10" (1/1) ... [2018-11-28 12:15:10,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:15:10,217 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:15:10,422 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:15:10,432 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:15:10,511 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:15:10,547 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:15:10,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:15:10 WrapperNode [2018-11-28 12:15:10,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:15:10,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:15:10,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:15:10,549 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:15:10,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:15:10" (1/1) ... [2018-11-28 12:15:10,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:15:10" (1/1) ... [2018-11-28 12:15:10,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:15:10" (1/1) ... [2018-11-28 12:15:10,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:15:10" (1/1) ... [2018-11-28 12:15:10,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:15:10" (1/1) ... [2018-11-28 12:15:10,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:15:10" (1/1) ... [2018-11-28 12:15:10,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:15:10" (1/1) ... [2018-11-28 12:15:10,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:15:10,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:15:10,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:15:10,593 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:15:10,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:15:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39c2f714-3a3e-47a2-8038-a361ce5d40b6/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:15:10,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:15:10,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:15:10,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-28 12:15:10,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-28 12:15:10,632 INFO L138 BoogieDeclarations]: Found implementation of procedure sort [2018-11-28 12:15:10,633 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:15:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-28 12:15:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-28 12:15:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 12:15:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 12:15:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 12:15:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 12:15:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 12:15:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 12:15:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 12:15:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 12:15:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 12:15:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 12:15:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 12:15:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 12:15:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 12:15:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 12:15:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 12:15:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 12:15:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 12:15:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 12:15:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 12:15:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 12:15:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 12:15:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 12:15:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 12:15:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 12:15:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 12:15:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 12:15:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 12:15:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 12:15:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 12:15:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 12:15:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 12:15:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 12:15:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 12:15:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 12:15:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 12:15:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 12:15:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 12:15:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 12:15:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 12:15:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 12:15:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 12:15:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 12:15:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 12:15:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 12:15:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 12:15:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 12:15:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 12:15:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 12:15:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 12:15:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 12:15:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 12:15:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 12:15:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 12:15:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 12:15:10,640 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 12:15:10,640 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 12:15:10,640 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 12:15:10,640 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 12:15:10,640 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 12:15:10,640 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 12:15:10,640 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 12:15:10,641 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 12:15:10,641 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 12:15:10,641 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 12:15:10,641 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 12:15:10,641 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 12:15:10,641 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 12:15:10,641 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 12:15:10,642 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 12:15:10,642 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 12:15:10,642 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 12:15:10,642 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 12:15:10,642 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 12:15:10,642 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 12:15:10,642 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 12:15:10,642 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 12:15:10,643 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 12:15:10,643 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 12:15:10,643 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 12:15:10,643 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 12:15:10,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 12:15:10,643 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 12:15:10,643 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 12:15:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 12:15:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 12:15:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 12:15:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 12:15:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 12:15:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 12:15:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 12:15:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 12:15:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 12:15:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 12:15:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 12:15:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 12:15:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 12:15:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 12:15:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 12:15:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 12:15:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 12:15:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 12:15:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure sort [2018-11-28 12:15:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 12:15:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 12:15:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:15:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:15:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:15:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:15:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:15:10,957 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:15:10,957 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 12:15:10,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:15:10 BoogieIcfgContainer [2018-11-28 12:15:10,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:15:10,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:15:10,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:15:10,962 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:15:10,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:15:10" (1/3) ... [2018-11-28 12:15:10,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78261e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:15:10, skipping insertion in model container [2018-11-28 12:15:10,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:15:10" (2/3) ... [2018-11-28 12:15:10,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78261e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:15:10, skipping insertion in model container [2018-11-28 12:15:10,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:15:10" (3/3) ... [2018-11-28 12:15:10,965 INFO L112 eAbstractionObserver]: Analyzing ICFG java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-11-28 12:15:10,975 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:15:10,983 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-11-28 12:15:10,999 INFO L257 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2018-11-28 12:15:11,023 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:15:11,024 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:15:11,024 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 12:15:11,024 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:15:11,025 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:15:11,025 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:15:11,025 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:15:11,025 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:15:11,025 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:15:11,041 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-28 12:15:11,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 12:15:11,050 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:15:11,051 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:15:11,053 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr4REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr8REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION]=== [2018-11-28 12:15:11,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:15:11,057 INFO L82 PathProgramCache]: Analyzing trace with hash -682162729, now seen corresponding path program 1 times [2018-11-28 12:15:11,059 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:15:11,059 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:15:11,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:15:11,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:15:11,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:15:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:15:11,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:15:11,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:15:11,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:15:11,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 12:15:11,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:15:11,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:15:11,224 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 5 states. [2018-11-28 12:15:11,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:15:11,339 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2018-11-28 12:15:11,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:15:11,340 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-11-28 12:15:11,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:15:11,347 INFO L225 Difference]: With dead ends: 37 [2018-11-28 12:15:11,347 INFO L226 Difference]: Without dead ends: 34 [2018-11-28 12:15:11,349 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:15:11,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-28 12:15:11,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-28 12:15:11,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 12:15:11,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-11-28 12:15:11,377 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 13 [2018-11-28 12:15:11,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:15:11,377 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-11-28 12:15:11,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 12:15:11,377 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-11-28 12:15:11,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 12:15:11,378 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:15:11,378 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:15:11,378 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr4REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr8REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION]=== [2018-11-28 12:15:11,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:15:11,379 INFO L82 PathProgramCache]: Analyzing trace with hash -682162728, now seen corresponding path program 1 times [2018-11-28 12:15:11,379 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:15:11,379 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:15:11,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:15:11,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:15:11,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:15:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:15:11,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:15:11,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:15:11,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:15:11,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:15:11,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:15:11,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:15:11,466 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2018-11-28 12:15:11,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:15:11,499 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2018-11-28 12:15:11,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:15:11,499 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-28 12:15:11,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:15:11,500 INFO L225 Difference]: With dead ends: 43 [2018-11-28 12:15:11,500 INFO L226 Difference]: Without dead ends: 43 [2018-11-28 12:15:11,501 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:15:11,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-28 12:15:11,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2018-11-28 12:15:11,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-28 12:15:11,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-11-28 12:15:11,505 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 13 [2018-11-28 12:15:11,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:15:11,505 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-11-28 12:15:11,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:15:11,506 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-11-28 12:15:11,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 12:15:11,506 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:15:11,506 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:15:11,506 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr4REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr8REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION]=== [2018-11-28 12:15:11,507 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:15:11,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1092844634, now seen corresponding path program 1 times [2018-11-28 12:15:11,507 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:15:11,507 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:15:11,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:15:11,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:15:11,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:15:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:15:11,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:15:11,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:15:11,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:15:11,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:15:11,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:15:11,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:15:11,575 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 7 states. [2018-11-28 12:15:11,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:15:11,713 INFO L93 Difference]: Finished difference Result 58 states and 64 transitions. [2018-11-28 12:15:11,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:15:11,713 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-28 12:15:11,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:15:11,716 INFO L225 Difference]: With dead ends: 58 [2018-11-28 12:15:11,716 INFO L226 Difference]: Without dead ends: 58 [2018-11-28 12:15:11,717 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:15:11,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-28 12:15:11,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 48. [2018-11-28 12:15:11,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-28 12:15:11,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2018-11-28 12:15:11,723 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 13 [2018-11-28 12:15:11,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:15:11,723 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2018-11-28 12:15:11,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:15:11,723 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2018-11-28 12:15:11,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 12:15:11,724 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:15:11,724 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:15:11,724 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr4REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr8REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION]=== [2018-11-28 12:15:11,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:15:11,725 INFO L82 PathProgramCache]: Analyzing trace with hash -481554738, now seen corresponding path program 1 times [2018-11-28 12:15:11,725 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:15:11,725 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:15:11,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:15:11,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:15:11,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:15:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:15:11,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:15:11,831 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:15:11,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:15:11,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:15:11,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:15:11,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:15:11,833 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand 7 states. [2018-11-28 12:15:12,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:15:12,007 INFO L93 Difference]: Finished difference Result 88 states and 103 transitions. [2018-11-28 12:15:12,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:15:12,008 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-11-28 12:15:12,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:15:12,009 INFO L225 Difference]: With dead ends: 88 [2018-11-28 12:15:12,009 INFO L226 Difference]: Without dead ends: 88 [2018-11-28 12:15:12,010 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-28 12:15:12,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-11-28 12:15:12,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 74. [2018-11-28 12:15:12,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-28 12:15:12,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 89 transitions. [2018-11-28 12:15:12,017 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 89 transitions. Word has length 14 [2018-11-28 12:15:12,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:15:12,017 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 89 transitions. [2018-11-28 12:15:12,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:15:12,017 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 89 transitions. [2018-11-28 12:15:12,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 12:15:12,018 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:15:12,018 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:15:12,018 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr4REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr8REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION]=== [2018-11-28 12:15:12,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:15:12,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1570848220, now seen corresponding path program 1 times [2018-11-28 12:15:12,019 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:15:12,019 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:15:12,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:15:12,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:15:12,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:15:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:15:12,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:15:12,070 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:15:12,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:15:12,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:15:12,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:15:12,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:15:12,072 INFO L87 Difference]: Start difference. First operand 74 states and 89 transitions. Second operand 4 states. [2018-11-28 12:15:12,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:15:12,115 INFO L93 Difference]: Finished difference Result 73 states and 88 transitions. [2018-11-28 12:15:12,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:15:12,115 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-11-28 12:15:12,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:15:12,116 INFO L225 Difference]: With dead ends: 73 [2018-11-28 12:15:12,117 INFO L226 Difference]: Without dead ends: 63 [2018-11-28 12:15:12,117 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:15:12,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-11-28 12:15:12,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-11-28 12:15:12,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-11-28 12:15:12,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2018-11-28 12:15:12,123 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 15 [2018-11-28 12:15:12,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:15:12,123 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2018-11-28 12:15:12,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:15:12,123 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2018-11-28 12:15:12,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 12:15:12,124 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:15:12,124 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:15:12,124 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr4REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr8REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION]=== [2018-11-28 12:15:12,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:15:12,124 INFO L82 PathProgramCache]: Analyzing trace with hash 770347889, now seen corresponding path program 1 times [2018-11-28 12:15:12,125 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:15:12,125 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:15:12,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:15:12,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:15:12,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:15:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:15:12,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:15:12,172 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:15:12,172 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:15:12,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 12:15:12,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:15:12,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:15:12,173 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand 5 states. [2018-11-28 12:15:12,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:15:12,216 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2018-11-28 12:15:12,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:15:12,216 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-11-28 12:15:12,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:15:12,217 INFO L225 Difference]: With dead ends: 73 [2018-11-28 12:15:12,217 INFO L226 Difference]: Without dead ends: 73 [2018-11-28 12:15:12,217 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:15:12,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-28 12:15:12,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 42. [2018-11-28 12:15:12,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 12:15:12,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2018-11-28 12:15:12,221 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 18 [2018-11-28 12:15:12,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:15:12,221 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2018-11-28 12:15:12,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 12:15:12,222 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2018-11-28 12:15:12,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:15:12,222 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:15:12,222 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:15:12,223 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr4REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr8REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION]=== [2018-11-28 12:15:12,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:15:12,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1154332924, now seen corresponding path program 1 times [2018-11-28 12:15:12,223 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:15:12,223 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:15:12,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:15:12,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:15:12,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:15:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:15:12,289 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:15:12,290 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:15:12,290 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39c2f714-3a3e-47a2-8038-a361ce5d40b6/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:15:12,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:15:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:15:12,339 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:15:12,402 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:15:12,421 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:15:12,421 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2018-11-28 12:15:12,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 12:15:12,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 12:15:12,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-11-28 12:15:12,422 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 12 states. [2018-11-28 12:15:12,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:15:12,741 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2018-11-28 12:15:12,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-28 12:15:12,742 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2018-11-28 12:15:12,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:15:12,742 INFO L225 Difference]: With dead ends: 89 [2018-11-28 12:15:12,742 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:15:12,743 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=268, Invalid=724, Unknown=0, NotChecked=0, Total=992 [2018-11-28 12:15:12,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:15:12,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:15:12,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:15:12,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:15:12,744 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-11-28 12:15:12,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:15:12,744 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:15:12,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 12:15:12,745 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:15:12,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:15:12,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:15:12 BoogieIcfgContainer [2018-11-28 12:15:12,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:15:12,750 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:15:12,750 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:15:12,750 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:15:12,751 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:15:10" (3/4) ... [2018-11-28 12:15:12,755 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:15:12,761 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:15:12,761 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2018-11-28 12:15:12,761 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2018-11-28 12:15:12,761 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:15:12,761 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure sort [2018-11-28 12:15:12,765 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-28 12:15:12,766 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-28 12:15:12,766 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:15:12,808 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_39c2f714-3a3e-47a2-8038-a361ce5d40b6/bin-2019/uautomizer/witness.graphml [2018-11-28 12:15:12,808 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:15:12,809 INFO L168 Benchmark]: Toolchain (without parser) took 2632.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 950.6 MB in the beginning and 844.5 MB in the end (delta: 106.2 MB). Peak memory consumption was 256.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:15:12,810 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:15:12,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:15:12,811 INFO L168 Benchmark]: Boogie Preprocessor took 43.70 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:15:12,811 INFO L168 Benchmark]: RCFGBuilder took 365.08 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: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:15:12,812 INFO L168 Benchmark]: TraceAbstraction took 1791.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 851.3 MB in the end (delta: 233.2 MB). Peak memory consumption was 233.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:15:12,812 INFO L168 Benchmark]: Witness Printer took 57.97 ms. Allocated memory is still 1.2 GB. Free memory was 847.9 MB in the beginning and 844.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:15:12,814 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 370.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.70 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 365.08 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: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1791.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 851.3 MB in the end (delta: 233.2 MB). Peak memory consumption was 233.2 MB. Max. memory is 11.5 GB. * Witness Printer took 57.97 ms. Allocated memory is still 1.2 GB. Free memory was 847.9 MB in the beginning and 844.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 549]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 49 locations, 13 error locations. SAFE Result, 1.7s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 171 SDtfs, 536 SDslu, 336 SDs, 0 SdLazy, 446 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 58 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 8057 SizeOfPredicates, 3 NumberOfNonLiveVariables, 93 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 12/14 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...