./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrcmp-alloca_true-valid-memsafety_true-termination.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_615046c9-dc40-4810-85fa-8bba7a558daa/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_615046c9-dc40-4810-85fa-8bba7a558daa/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_615046c9-dc40-4810-85fa-8bba7a558daa/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_615046c9-dc40-4810-85fa-8bba7a558daa/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrcmp-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_615046c9-dc40-4810-85fa-8bba7a558daa/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_615046c9-dc40-4810-85fa-8bba7a558daa/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 bd1b17fffb471392e4e5cb414f885f337c434a14 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 16:02:41,653 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 16:02:41,654 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 16:02:41,660 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 16:02:41,660 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 16:02:41,661 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 16:02:41,662 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 16:02:41,663 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 16:02:41,663 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 16:02:41,664 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 16:02:41,664 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 16:02:41,665 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 16:02:41,665 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 16:02:41,666 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 16:02:41,666 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 16:02:41,667 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 16:02:41,667 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 16:02:41,668 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 16:02:41,669 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 16:02:41,670 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 16:02:41,670 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 16:02:41,671 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 16:02:41,672 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 16:02:41,672 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 16:02:41,672 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 16:02:41,672 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 16:02:41,673 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 16:02:41,673 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 16:02:41,674 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 16:02:41,674 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 16:02:41,674 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 16:02:41,675 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 16:02:41,675 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 16:02:41,675 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 16:02:41,675 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 16:02:41,676 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 16:02:41,676 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_615046c9-dc40-4810-85fa-8bba7a558daa/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-12-01 16:02:41,683 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 16:02:41,683 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 16:02:41,684 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 16:02:41,684 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 16:02:41,684 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 16:02:41,684 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 16:02:41,684 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 16:02:41,684 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 16:02:41,684 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 16:02:41,685 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 16:02:41,685 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 16:02:41,685 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 16:02:41,685 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 16:02:41,685 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-01 16:02:41,685 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-01 16:02:41,685 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-01 16:02:41,685 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 16:02:41,685 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 16:02:41,685 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 16:02:41,685 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 16:02:41,686 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 16:02:41,686 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 16:02:41,686 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 16:02:41,686 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 16:02:41,686 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 16:02:41,686 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 16:02:41,686 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 16:02:41,686 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 16:02:41,686 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_615046c9-dc40-4810-85fa-8bba7a558daa/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 -> bd1b17fffb471392e4e5cb414f885f337c434a14 [2018-12-01 16:02:41,703 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 16:02:41,710 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 16:02:41,712 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 16:02:41,712 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 16:02:41,713 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 16:02:41,713 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_615046c9-dc40-4810-85fa-8bba7a558daa/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-12-01 16:02:41,748 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_615046c9-dc40-4810-85fa-8bba7a558daa/bin-2019/uautomizer/data/1b1176d6f/3c8e6cdecd35479abd5a60cbc5637e99/FLAG7d13a65e5 [2018-12-01 16:02:42,225 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 16:02:42,225 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_615046c9-dc40-4810-85fa-8bba7a558daa/sv-benchmarks/c/array-memsafety/cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-12-01 16:02:42,231 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_615046c9-dc40-4810-85fa-8bba7a558daa/bin-2019/uautomizer/data/1b1176d6f/3c8e6cdecd35479abd5a60cbc5637e99/FLAG7d13a65e5 [2018-12-01 16:02:42,239 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_615046c9-dc40-4810-85fa-8bba7a558daa/bin-2019/uautomizer/data/1b1176d6f/3c8e6cdecd35479abd5a60cbc5637e99 [2018-12-01 16:02:42,240 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 16:02:42,241 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-01 16:02:42,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 16:02:42,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 16:02:42,244 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 16:02:42,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:02:42" (1/1) ... [2018-12-01 16:02:42,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4834854b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:02:42, skipping insertion in model container [2018-12-01 16:02:42,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:02:42" (1/1) ... [2018-12-01 16:02:42,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 16:02:42,272 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 16:02:42,434 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 16:02:42,472 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 16:02:42,494 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 16:02:42,524 INFO L195 MainTranslator]: Completed translation [2018-12-01 16:02:42,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:02:42 WrapperNode [2018-12-01 16:02:42,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 16:02:42,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 16:02:42,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 16:02:42,525 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 16:02:42,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:02:42" (1/1) ... [2018-12-01 16:02:42,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:02:42" (1/1) ... [2018-12-01 16:02:42,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:02:42" (1/1) ... [2018-12-01 16:02:42,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:02:42" (1/1) ... [2018-12-01 16:02:42,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:02:42" (1/1) ... [2018-12-01 16:02:42,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:02:42" (1/1) ... [2018-12-01 16:02:42,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:02:42" (1/1) ... [2018-12-01 16:02:42,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 16:02:42,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 16:02:42,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 16:02:42,565 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 16:02:42,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:02:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_615046c9-dc40-4810-85fa-8bba7a558daa/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 [2018-12-01 16:02:42,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 16:02:42,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 16:02:42,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-12-01 16:02:42,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-12-01 16:02:42,598 INFO L138 BoogieDeclarations]: Found implementation of procedure cstrcmp [2018-12-01 16:02:42,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 16:02:42,598 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-12-01 16:02:42,598 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-12-01 16:02:42,598 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-01 16:02:42,598 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-01 16:02:42,599 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-01 16:02:42,599 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-01 16:02:42,599 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-01 16:02:42,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-01 16:02:42,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-01 16:02:42,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-01 16:02:42,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-01 16:02:42,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-01 16:02:42,600 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-01 16:02:42,600 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-01 16:02:42,600 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-01 16:02:42,600 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-01 16:02:42,600 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-01 16:02:42,600 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-01 16:02:42,600 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-01 16:02:42,600 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-01 16:02:42,600 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-01 16:02:42,600 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-01 16:02:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-01 16:02:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-01 16:02:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-01 16:02:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-01 16:02:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-01 16:02:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-01 16:02:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-01 16:02:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-01 16:02:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-01 16:02:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-01 16:02:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-01 16:02:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-01 16:02:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-01 16:02:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-01 16:02:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-01 16:02:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-01 16:02:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-01 16:02:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-01 16:02:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-01 16:02:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-01 16:02:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-01 16:02:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-01 16:02:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-01 16:02:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-01 16:02:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-01 16:02:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-01 16:02:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-01 16:02:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-01 16:02:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-01 16:02:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-01 16:02:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-01 16:02:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-01 16:02:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-01 16:02:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-01 16:02:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-01 16:02:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-01 16:02:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-01 16:02:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-01 16:02:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-01 16:02:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-01 16:02:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-01 16:02:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-01 16:02:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-01 16:02:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-01 16:02:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-01 16:02:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-01 16:02:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-01 16:02:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-01 16:02:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-01 16:02:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-01 16:02:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-01 16:02:42,605 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-01 16:02:42,605 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-01 16:02:42,605 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-01 16:02:42,605 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-01 16:02:42,605 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-01 16:02:42,605 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-01 16:02:42,605 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-01 16:02:42,605 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-01 16:02:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-01 16:02:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-01 16:02:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-01 16:02:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-01 16:02:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-01 16:02:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-01 16:02:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-01 16:02:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-01 16:02:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-01 16:02:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-01 16:02:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-01 16:02:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-01 16:02:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-01 16:02:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-01 16:02:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-01 16:02:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-01 16:02:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-01 16:02:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-01 16:02:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-01 16:02:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-01 16:02:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-01 16:02:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-12-01 16:02:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure cstrcmp [2018-12-01 16:02:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-01 16:02:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 16:02:42,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 16:02:42,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-01 16:02:42,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 16:02:42,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 16:02:42,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 16:02:42,816 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 16:02:42,816 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-01 16:02:42,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:02:42 BoogieIcfgContainer [2018-12-01 16:02:42,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 16:02:42,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 16:02:42,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 16:02:42,819 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 16:02:42,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 04:02:42" (1/3) ... [2018-12-01 16:02:42,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283a0b0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 04:02:42, skipping insertion in model container [2018-12-01 16:02:42,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:02:42" (2/3) ... [2018-12-01 16:02:42,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283a0b0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 04:02:42, skipping insertion in model container [2018-12-01 16:02:42,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:02:42" (3/3) ... [2018-12-01 16:02:42,821 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-12-01 16:02:42,827 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 16:02:42,832 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-12-01 16:02:42,842 INFO L257 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2018-12-01 16:02:42,857 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 16:02:42,857 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 16:02:42,858 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-01 16:02:42,858 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 16:02:42,858 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 16:02:42,858 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 16:02:42,858 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 16:02:42,858 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 16:02:42,858 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 16:02:42,867 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-12-01 16:02:42,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-01 16:02:42,873 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 16:02:42,873 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 16:02:42,874 INFO L423 AbstractCegarLoop]: === Iteration 1 === [cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-01 16:02:42,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:02:42,878 INFO L82 PathProgramCache]: Analyzing trace with hash 290107144, now seen corresponding path program 1 times [2018-12-01 16:02:42,879 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:02:42,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:02:42,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:42,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:02:42,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:02:42,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:42,975 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 16:02:42,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 16:02:42,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 16:02:42,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 16:02:42,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 16:02:42,986 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 3 states. [2018-12-01 16:02:43,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 16:02:43,021 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2018-12-01 16:02:43,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 16:02:43,022 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-01 16:02:43,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 16:02:43,028 INFO L225 Difference]: With dead ends: 47 [2018-12-01 16:02:43,028 INFO L226 Difference]: Without dead ends: 44 [2018-12-01 16:02:43,029 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 16:02:43,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-01 16:02:43,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-12-01 16:02:43,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-01 16:02:43,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2018-12-01 16:02:43,050 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 10 [2018-12-01 16:02:43,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 16:02:43,050 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2018-12-01 16:02:43,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 16:02:43,050 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2018-12-01 16:02:43,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-01 16:02:43,051 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 16:02:43,051 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 16:02:43,051 INFO L423 AbstractCegarLoop]: === Iteration 2 === [cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-01 16:02:43,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:02:43,051 INFO L82 PathProgramCache]: Analyzing trace with hash 290107145, now seen corresponding path program 1 times [2018-12-01 16:02:43,051 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:02:43,051 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:02:43,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:02:43,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:02:43,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:43,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 16:02:43,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 16:02:43,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-01 16:02:43,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 16:02:43,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-01 16:02:43,095 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 4 states. [2018-12-01 16:02:43,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 16:02:43,109 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2018-12-01 16:02:43,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-01 16:02:43,110 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-12-01 16:02:43,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 16:02:43,110 INFO L225 Difference]: With dead ends: 43 [2018-12-01 16:02:43,111 INFO L226 Difference]: Without dead ends: 43 [2018-12-01 16:02:43,111 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-01 16:02:43,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-01 16:02:43,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-12-01 16:02:43,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-01 16:02:43,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2018-12-01 16:02:43,114 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 10 [2018-12-01 16:02:43,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 16:02:43,114 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2018-12-01 16:02:43,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-01 16:02:43,114 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2018-12-01 16:02:43,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 16:02:43,115 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 16:02:43,115 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 16:02:43,115 INFO L423 AbstractCegarLoop]: === Iteration 3 === [cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-01 16:02:43,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:02:43,115 INFO L82 PathProgramCache]: Analyzing trace with hash 403386909, now seen corresponding path program 1 times [2018-12-01 16:02:43,115 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:02:43,115 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:02:43,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:02:43,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:02:43,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:43,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 16:02:43,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 16:02:43,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 16:02:43,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 16:02:43,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 16:02:43,141 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 3 states. [2018-12-01 16:02:43,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 16:02:43,164 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2018-12-01 16:02:43,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 16:02:43,164 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-12-01 16:02:43,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 16:02:43,165 INFO L225 Difference]: With dead ends: 42 [2018-12-01 16:02:43,165 INFO L226 Difference]: Without dead ends: 42 [2018-12-01 16:02:43,165 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 16:02:43,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-01 16:02:43,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-12-01 16:02:43,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-01 16:02:43,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2018-12-01 16:02:43,169 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 11 [2018-12-01 16:02:43,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 16:02:43,169 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2018-12-01 16:02:43,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 16:02:43,169 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2018-12-01 16:02:43,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 16:02:43,170 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 16:02:43,170 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 16:02:43,170 INFO L423 AbstractCegarLoop]: === Iteration 4 === [cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-01 16:02:43,170 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:02:43,170 INFO L82 PathProgramCache]: Analyzing trace with hash 403386910, now seen corresponding path program 1 times [2018-12-01 16:02:43,170 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:02:43,170 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:02:43,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:02:43,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:02:43,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:43,209 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 16:02:43,209 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 16:02:43,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-01 16:02:43,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 16:02:43,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-01 16:02:43,210 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 4 states. [2018-12-01 16:02:43,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 16:02:43,220 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2018-12-01 16:02:43,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-01 16:02:43,220 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-12-01 16:02:43,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 16:02:43,221 INFO L225 Difference]: With dead ends: 41 [2018-12-01 16:02:43,221 INFO L226 Difference]: Without dead ends: 41 [2018-12-01 16:02:43,221 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-01 16:02:43,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-01 16:02:43,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-01 16:02:43,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-01 16:02:43,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-12-01 16:02:43,223 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 11 [2018-12-01 16:02:43,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 16:02:43,223 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-12-01 16:02:43,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-01 16:02:43,223 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-12-01 16:02:43,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-01 16:02:43,223 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 16:02:43,223 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 16:02:43,224 INFO L423 AbstractCegarLoop]: === Iteration 5 === [cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-01 16:02:43,224 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:02:43,224 INFO L82 PathProgramCache]: Analyzing trace with hash -19041991, now seen corresponding path program 1 times [2018-12-01 16:02:43,224 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:02:43,224 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:02:43,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:02:43,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:02:43,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:43,247 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 16:02:43,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-01 16:02:43,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 16:02:43,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 16:02:43,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 16:02:43,248 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 5 states. [2018-12-01 16:02:43,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 16:02:43,288 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2018-12-01 16:02:43,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 16:02:43,288 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-12-01 16:02:43,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 16:02:43,288 INFO L225 Difference]: With dead ends: 38 [2018-12-01 16:02:43,288 INFO L226 Difference]: Without dead ends: 38 [2018-12-01 16:02:43,288 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 [2018-12-01 16:02:43,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-01 16:02:43,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-01 16:02:43,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-01 16:02:43,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2018-12-01 16:02:43,291 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 14 [2018-12-01 16:02:43,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 16:02:43,291 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2018-12-01 16:02:43,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 16:02:43,291 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2018-12-01 16:02:43,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-01 16:02:43,291 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 16:02:43,291 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 16:02:43,291 INFO L423 AbstractCegarLoop]: === Iteration 6 === [cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-01 16:02:43,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:02:43,292 INFO L82 PathProgramCache]: Analyzing trace with hash -19041990, now seen corresponding path program 1 times [2018-12-01 16:02:43,292 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:02:43,292 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:02:43,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:02:43,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:02:43,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:43,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 16:02:43,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-01 16:02:43,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 16:02:43,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 16:02:43,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-01 16:02:43,357 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 7 states. [2018-12-01 16:02:43,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 16:02:43,432 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2018-12-01 16:02:43,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 16:02:43,432 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-12-01 16:02:43,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 16:02:43,435 INFO L225 Difference]: With dead ends: 57 [2018-12-01 16:02:43,435 INFO L226 Difference]: Without dead ends: 57 [2018-12-01 16:02:43,435 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-01 16:02:43,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-12-01 16:02:43,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2018-12-01 16:02:43,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-01 16:02:43,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2018-12-01 16:02:43,440 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 14 [2018-12-01 16:02:43,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 16:02:43,440 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2018-12-01 16:02:43,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 16:02:43,440 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2018-12-01 16:02:43,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-01 16:02:43,441 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 16:02:43,441 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 16:02:43,441 INFO L423 AbstractCegarLoop]: === Iteration 7 === [cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-01 16:02:43,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:02:43,441 INFO L82 PathProgramCache]: Analyzing trace with hash -2083064079, now seen corresponding path program 1 times [2018-12-01 16:02:43,441 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:02:43,442 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:02:43,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:02:43,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:02:43,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:43,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 16:02:43,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 16:02:43,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 16:02:43,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 16:02:43,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 16:02:43,462 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand 3 states. [2018-12-01 16:02:43,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 16:02:43,467 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2018-12-01 16:02:43,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 16:02:43,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-12-01 16:02:43,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 16:02:43,468 INFO L225 Difference]: With dead ends: 48 [2018-12-01 16:02:43,468 INFO L226 Difference]: Without dead ends: 48 [2018-12-01 16:02:43,468 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 16:02:43,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-12-01 16:02:43,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-12-01 16:02:43,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-01 16:02:43,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2018-12-01 16:02:43,471 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 18 [2018-12-01 16:02:43,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 16:02:43,471 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2018-12-01 16:02:43,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 16:02:43,471 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-12-01 16:02:43,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-01 16:02:43,472 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 16:02:43,472 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 16:02:43,472 INFO L423 AbstractCegarLoop]: === Iteration 8 === [cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-01 16:02:43,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:02:43,472 INFO L82 PathProgramCache]: Analyzing trace with hash -2083073153, now seen corresponding path program 1 times [2018-12-01 16:02:43,472 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:02:43,472 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:02:43,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:02:43,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:02:43,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:43,492 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 16:02:43,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-01 16:02:43,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 16:02:43,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 16:02:43,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 16:02:43,493 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 5 states. [2018-12-01 16:02:43,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 16:02:43,526 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2018-12-01 16:02:43,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 16:02:43,526 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-12-01 16:02:43,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 16:02:43,527 INFO L225 Difference]: With dead ends: 46 [2018-12-01 16:02:43,527 INFO L226 Difference]: Without dead ends: 46 [2018-12-01 16:02:43,527 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 [2018-12-01 16:02:43,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-01 16:02:43,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-12-01 16:02:43,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-01 16:02:43,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2018-12-01 16:02:43,529 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 18 [2018-12-01 16:02:43,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 16:02:43,529 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2018-12-01 16:02:43,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 16:02:43,530 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2018-12-01 16:02:43,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-01 16:02:43,530 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 16:02:43,530 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 16:02:43,530 INFO L423 AbstractCegarLoop]: === Iteration 9 === [cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-01 16:02:43,530 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:02:43,530 INFO L82 PathProgramCache]: Analyzing trace with hash -2083073152, now seen corresponding path program 1 times [2018-12-01 16:02:43,530 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:02:43,530 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:02:43,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:02:43,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:02:43,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:43,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 16:02:43,587 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-01 16:02:43,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 16:02:43,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 16:02:43,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-01 16:02:43,588 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand 7 states. [2018-12-01 16:02:43,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 16:02:43,642 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2018-12-01 16:02:43,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 16:02:43,643 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-12-01 16:02:43,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 16:02:43,643 INFO L225 Difference]: With dead ends: 53 [2018-12-01 16:02:43,643 INFO L226 Difference]: Without dead ends: 53 [2018-12-01 16:02:43,643 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-01 16:02:43,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-12-01 16:02:43,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 48. [2018-12-01 16:02:43,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-01 16:02:43,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2018-12-01 16:02:43,646 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 18 [2018-12-01 16:02:43,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 16:02:43,646 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2018-12-01 16:02:43,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 16:02:43,646 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2018-12-01 16:02:43,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-01 16:02:43,646 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 16:02:43,647 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 16:02:43,647 INFO L423 AbstractCegarLoop]: === Iteration 10 === [cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-01 16:02:43,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:02:43,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1150149187, now seen corresponding path program 1 times [2018-12-01 16:02:43,647 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:02:43,647 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:02:43,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:02:43,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:02:43,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:43,731 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 16:02:43,731 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-01 16:02:43,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-01 16:02:43,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-01 16:02:43,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-12-01 16:02:43,732 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand 9 states. [2018-12-01 16:02:43,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 16:02:43,845 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2018-12-01 16:02:43,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-01 16:02:43,845 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-12-01 16:02:43,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 16:02:43,845 INFO L225 Difference]: With dead ends: 69 [2018-12-01 16:02:43,846 INFO L226 Difference]: Without dead ends: 69 [2018-12-01 16:02:43,846 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-12-01 16:02:43,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-12-01 16:02:43,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 66. [2018-12-01 16:02:43,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-12-01 16:02:43,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 74 transitions. [2018-12-01 16:02:43,849 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 74 transitions. Word has length 21 [2018-12-01 16:02:43,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 16:02:43,849 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 74 transitions. [2018-12-01 16:02:43,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-01 16:02:43,849 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 74 transitions. [2018-12-01 16:02:43,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-01 16:02:43,849 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 16:02:43,849 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 16:02:43,850 INFO L423 AbstractCegarLoop]: === Iteration 11 === [cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-01 16:02:43,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:02:43,850 INFO L82 PathProgramCache]: Analyzing trace with hash -129714491, now seen corresponding path program 1 times [2018-12-01 16:02:43,850 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:02:43,850 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:02:43,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:02:43,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:02:43,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:43,980 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 16:02:43,980 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_615046c9-dc40-4810-85fa-8bba7a558daa/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 [2018-12-01 16:02:43,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:02:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:02:44,005 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 16:02:44,043 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-12-01 16:02:44,045 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 8 treesize of output 7 [2018-12-01 16:02:44,045 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 16:02:44,046 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 16:02:44,047 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-01 16:02:44,047 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-12-01 16:02:44,172 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 30 [2018-12-01 16:02:44,175 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2018-12-01 16:02:44,175 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 16:02:44,185 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2018-12-01 16:02:44,186 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-01 16:02:44,199 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 12 [2018-12-01 16:02:44,199 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-01 16:02:44,210 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-01 16:02:44,222 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-01 16:02:44,222 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:30, output treesize:8 [2018-12-01 16:02:44,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:44,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-01 16:02:44,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 21 [2018-12-01 16:02:44,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-01 16:02:44,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-01 16:02:44,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2018-12-01 16:02:44,269 INFO L87 Difference]: Start difference. First operand 66 states and 74 transitions. Second operand 21 states. [2018-12-01 16:02:45,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 16:02:45,112 INFO L93 Difference]: Finished difference Result 146 states and 162 transitions. [2018-12-01 16:02:45,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-12-01 16:02:45,112 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 21 [2018-12-01 16:02:45,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 16:02:45,113 INFO L225 Difference]: With dead ends: 146 [2018-12-01 16:02:45,113 INFO L226 Difference]: Without dead ends: 146 [2018-12-01 16:02:45,114 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=1587, Unknown=0, NotChecked=0, Total=1892 [2018-12-01 16:02:45,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-12-01 16:02:45,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 95. [2018-12-01 16:02:45,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-12-01 16:02:45,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 108 transitions. [2018-12-01 16:02:45,119 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 108 transitions. Word has length 21 [2018-12-01 16:02:45,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 16:02:45,119 INFO L480 AbstractCegarLoop]: Abstraction has 95 states and 108 transitions. [2018-12-01 16:02:45,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-01 16:02:45,119 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 108 transitions. [2018-12-01 16:02:45,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-01 16:02:45,120 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 16:02:45,120 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 16:02:45,120 INFO L423 AbstractCegarLoop]: === Iteration 12 === [cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-01 16:02:45,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:02:45,121 INFO L82 PathProgramCache]: Analyzing trace with hash -824303671, now seen corresponding path program 1 times [2018-12-01 16:02:45,121 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:02:45,121 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:02:45,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:45,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:02:45,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:02:45,274 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:45,275 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 16:02:45,275 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_615046c9-dc40-4810-85fa-8bba7a558daa/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 16:02:45,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:02:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:02:45,295 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 16:02:45,299 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-01 16:02:45,301 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 11 treesize of output 10 [2018-12-01 16:02:45,301 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 16:02:45,302 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 16:02:45,305 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-01 16:02:45,306 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-12-01 16:02:45,491 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2018-12-01 16:02:45,498 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 27 [2018-12-01 16:02:45,498 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-12-01 16:02:45,523 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 31 [2018-12-01 16:02:45,523 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 4 xjuncts. [2018-12-01 16:02:45,553 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2018-12-01 16:02:45,553 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-01 16:02:45,555 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2018-12-01 16:02:45,555 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-01 16:02:45,577 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-12-01 16:02:45,607 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-12-01 16:02:45,607 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:49, output treesize:66 [2018-12-01 16:02:45,674 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:45,690 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 16:02:45,690 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 22 [2018-12-01 16:02:45,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-12-01 16:02:45,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-12-01 16:02:45,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2018-12-01 16:02:45,691 INFO L87 Difference]: Start difference. First operand 95 states and 108 transitions. Second operand 23 states. [2018-12-01 16:02:46,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 16:02:46,878 INFO L93 Difference]: Finished difference Result 124 states and 140 transitions. [2018-12-01 16:02:46,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-01 16:02:46,878 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 25 [2018-12-01 16:02:46,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 16:02:46,879 INFO L225 Difference]: With dead ends: 124 [2018-12-01 16:02:46,879 INFO L226 Difference]: Without dead ends: 124 [2018-12-01 16:02:46,879 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=213, Invalid=1047, Unknown=0, NotChecked=0, Total=1260 [2018-12-01 16:02:46,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-12-01 16:02:46,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 93. [2018-12-01 16:02:46,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-12-01 16:02:46,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 105 transitions. [2018-12-01 16:02:46,883 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 105 transitions. Word has length 25 [2018-12-01 16:02:46,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 16:02:46,883 INFO L480 AbstractCegarLoop]: Abstraction has 93 states and 105 transitions. [2018-12-01 16:02:46,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-12-01 16:02:46,883 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 105 transitions. [2018-12-01 16:02:46,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-01 16:02:46,883 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 16:02:46,883 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 16:02:46,883 INFO L423 AbstractCegarLoop]: === Iteration 13 === [cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-01 16:02:46,884 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:02:46,884 INFO L82 PathProgramCache]: Analyzing trace with hash -67902013, now seen corresponding path program 1 times [2018-12-01 16:02:46,884 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:02:46,884 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:02:46,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:46,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:02:46,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:02:46,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:46,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 16:02:46,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 16:02:46,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-01 16:02:46,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 16:02:46,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-01 16:02:46,912 INFO L87 Difference]: Start difference. First operand 93 states and 105 transitions. Second operand 4 states. [2018-12-01 16:02:46,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 16:02:46,946 INFO L93 Difference]: Finished difference Result 92 states and 104 transitions. [2018-12-01 16:02:46,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-01 16:02:46,947 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-12-01 16:02:46,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 16:02:46,947 INFO L225 Difference]: With dead ends: 92 [2018-12-01 16:02:46,947 INFO L226 Difference]: Without dead ends: 43 [2018-12-01 16:02:46,948 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 [2018-12-01 16:02:46,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-01 16:02:46,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-12-01 16:02:46,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-01 16:02:46,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2018-12-01 16:02:46,950 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 27 [2018-12-01 16:02:46,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 16:02:46,950 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2018-12-01 16:02:46,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-01 16:02:46,950 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2018-12-01 16:02:46,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-01 16:02:46,951 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 16:02:46,951 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 16:02:46,951 INFO L423 AbstractCegarLoop]: === Iteration 14 === [cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-01 16:02:46,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:02:46,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1792296282, now seen corresponding path program 1 times [2018-12-01 16:02:46,951 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:02:46,951 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:02:46,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:46,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:02:46,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:02:47,200 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:47,201 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 16:02:47,201 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_615046c9-dc40-4810-85fa-8bba7a558daa/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 16:02:47,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:02:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:02:47,226 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 16:02:47,235 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-01 16:02:47,238 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-01 16:02:47,239 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 16:02:47,249 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 16:02:47,256 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-12-01 16:02:47,256 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-01 16:02:47,261 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 16:02:47,261 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:21, output treesize:18 [2018-12-01 16:02:47,278 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-12-01 16:02:47,279 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 12 treesize of output 11 [2018-12-01 16:02:47,280 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 16:02:47,281 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 16:02:47,285 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-01 16:02:47,285 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-12-01 16:02:47,304 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-12-01 16:02:47,305 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 13 treesize of output 12 [2018-12-01 16:02:47,305 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 16:02:47,309 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 16:02:47,313 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-01 16:02:47,314 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:28 [2018-12-01 16:02:47,433 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2018-12-01 16:02:47,434 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 1 [2018-12-01 16:02:47,435 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 16:02:47,442 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-12-01 16:02:47,442 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-12-01 16:02:47,444 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-01 16:02:47,450 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-12-01 16:02:47,450 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:45, output treesize:34 [2018-12-01 16:02:47,510 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:47,534 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 16:02:47,534 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 19 [2018-12-01 16:02:47,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-12-01 16:02:47,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-12-01 16:02:47,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2018-12-01 16:02:47,535 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 20 states. [2018-12-01 16:02:48,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 16:02:48,494 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-12-01 16:02:48,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-01 16:02:48,494 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 28 [2018-12-01 16:02:48,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 16:02:48,495 INFO L225 Difference]: With dead ends: 44 [2018-12-01 16:02:48,495 INFO L226 Difference]: Without dead ends: 44 [2018-12-01 16:02:48,495 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 19 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=180, Invalid=812, Unknown=0, NotChecked=0, Total=992 [2018-12-01 16:02:48,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-01 16:02:48,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2018-12-01 16:02:48,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-12-01 16:02:48,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2018-12-01 16:02:48,497 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 28 [2018-12-01 16:02:48,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 16:02:48,497 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2018-12-01 16:02:48,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-12-01 16:02:48,497 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2018-12-01 16:02:48,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-01 16:02:48,497 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 16:02:48,498 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 16:02:48,498 INFO L423 AbstractCegarLoop]: === Iteration 15 === [cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-01 16:02:48,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:02:48,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1308190816, now seen corresponding path program 2 times [2018-12-01 16:02:48,498 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:02:48,498 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:02:48,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:48,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:02:48,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:02:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:02:48,779 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:48,779 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 16:02:48,779 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_615046c9-dc40-4810-85fa-8bba7a558daa/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 16:02:48,785 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-01 16:02:48,799 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-01 16:02:48,799 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 16:02:48,800 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 16:02:48,803 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-01 16:02:48,813 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-12-01 16:02:48,814 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-12-01 16:02:48,819 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-01 16:02:48,828 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 16:02:48,829 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:13, output treesize:9 [2018-12-01 16:02:48,850 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-12-01 16:02:48,851 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 13 treesize of output 12 [2018-12-01 16:02:48,851 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 16:02:48,852 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 16:02:48,856 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-01 16:02:48,856 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2018-12-01 16:02:49,051 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 35 [2018-12-01 16:02:49,053 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2018-12-01 16:02:49,053 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 16:02:49,068 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 22 [2018-12-01 16:02:49,068 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-12-01 16:02:49,091 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 35 [2018-12-01 16:02:49,091 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 4 xjuncts. [2018-12-01 16:02:49,131 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-12-01 16:02:49,159 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-12-01 16:02:49,160 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:53, output treesize:98 [2018-12-01 16:02:49,248 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:02:49,262 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 16:02:49,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2018-12-01 16:02:49,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-12-01 16:02:49,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-12-01 16:02:49,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2018-12-01 16:02:49,263 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 25 states. [2018-12-01 16:02:49,960 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-01 16:02:50,528 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 57 [2018-12-01 16:02:51,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 16:02:51,077 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-12-01 16:02:51,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-12-01 16:02:51,077 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 32 [2018-12-01 16:02:51,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 16:02:51,077 INFO L225 Difference]: With dead ends: 41 [2018-12-01 16:02:51,077 INFO L226 Difference]: Without dead ends: 0 [2018-12-01 16:02:51,078 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=317, Invalid=1663, Unknown=0, NotChecked=0, Total=1980 [2018-12-01 16:02:51,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-01 16:02:51,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-01 16:02:51,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-01 16:02:51,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-01 16:02:51,079 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-12-01 16:02:51,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 16:02:51,079 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 16:02:51,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-12-01 16:02:51,079 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-01 16:02:51,079 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 16:02:51,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 04:02:51 BoogieIcfgContainer [2018-12-01 16:02:51,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 16:02:51,083 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 16:02:51,083 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 16:02:51,083 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 16:02:51,083 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:02:42" (3/4) ... [2018-12-01 16:02:51,085 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 16:02:51,090 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-01 16:02:51,090 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cstrcmp [2018-12-01 16:02:51,090 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2018-12-01 16:02:51,090 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2018-12-01 16:02:51,090 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-01 16:02:51,093 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-12-01 16:02:51,093 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-01 16:02:51,093 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-01 16:02:51,126 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_615046c9-dc40-4810-85fa-8bba7a558daa/bin-2019/uautomizer/witness.graphml [2018-12-01 16:02:51,126 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 16:02:51,127 INFO L168 Benchmark]: Toolchain (without parser) took 8886.00 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 318.2 MB). Free memory was 957.1 MB in the beginning and 889.6 MB in the end (delta: 67.5 MB). Peak memory consumption was 385.7 MB. Max. memory is 11.5 GB. [2018-12-01 16:02:51,127 INFO L168 Benchmark]: CDTParser took 0.11 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. [2018-12-01 16:02:51,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -161.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-12-01 16:02:51,128 INFO L168 Benchmark]: Boogie Preprocessor took 39.43 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. [2018-12-01 16:02:51,128 INFO L168 Benchmark]: RCFGBuilder took 252.35 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: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 11.5 GB. [2018-12-01 16:02:51,128 INFO L168 Benchmark]: TraceAbstraction took 8265.16 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 184.0 MB). Free memory was 1.1 GB in the beginning and 889.6 MB in the end (delta: 181.9 MB). Peak memory consumption was 365.9 MB. Max. memory is 11.5 GB. [2018-12-01 16:02:51,128 INFO L168 Benchmark]: Witness Printer took 43.40 ms. Allocated memory is still 1.3 GB. Free memory is still 889.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 16:02:51,130 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 283.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -161.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.43 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 252.35 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: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8265.16 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 184.0 MB). Free memory was 1.1 GB in the beginning and 889.6 MB in the end (delta: 181.9 MB). Peak memory consumption was 365.9 MB. Max. memory is 11.5 GB. * Witness Printer took 43.40 ms. Allocated memory is still 1.3 GB. Free memory is still 889.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 551]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 562]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 562]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 54 locations, 15 error locations. SAFE Result, 8.2s OverallTime, 15 OverallIterations, 3 TraceHistogramMax, 5.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 478 SDtfs, 998 SDslu, 1878 SDs, 0 SdLazy, 2102 SolverSat, 196 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 278 GetRequests, 83 SyntacticMatches, 5 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 875 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=11, 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, 15 MinimizatonAttempts, 105 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 384 NumberOfCodeBlocks, 384 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 365 ConstructedInterpolants, 31 QuantifiedInterpolants, 87988 SizeOfPredicates, 48 NumberOfNonLiveVariables, 554 ConjunctsInSsa, 109 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 9/66 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...