./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_7fa37515-c3ef-4a52-9651-72a4b117ef8f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7fa37515-c3ef-4a52-9651-72a4b117ef8f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7fa37515-c3ef-4a52-9651-72a4b117ef8f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7fa37515-c3ef-4a52-9651-72a4b117ef8f/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_7fa37515-c3ef-4a52-9651-72a4b117ef8f/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7fa37515-c3ef-4a52-9651-72a4b117ef8f/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 [2018-12-09 12:28:24,277 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 12:28:24,277 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 12:28:24,285 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 12:28:24,286 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 12:28:24,287 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 12:28:24,287 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 12:28:24,289 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 12:28:24,290 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 12:28:24,290 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 12:28:24,291 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 12:28:24,291 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 12:28:24,292 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 12:28:24,292 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 12:28:24,293 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 12:28:24,294 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 12:28:24,294 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 12:28:24,295 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 12:28:24,297 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 12:28:24,298 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 12:28:24,299 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 12:28:24,299 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 12:28:24,301 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 12:28:24,301 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 12:28:24,301 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 12:28:24,302 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 12:28:24,302 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 12:28:24,303 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 12:28:24,304 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 12:28:24,304 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 12:28:24,304 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 12:28:24,305 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 12:28:24,305 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 12:28:24,305 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 12:28:24,306 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 12:28:24,306 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 12:28:24,306 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7fa37515-c3ef-4a52-9651-72a4b117ef8f/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-12-09 12:28:24,316 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 12:28:24,317 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 12:28:24,317 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 12:28:24,317 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 12:28:24,318 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 12:28:24,318 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 12:28:24,318 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 12:28:24,318 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 12:28:24,318 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 12:28:24,319 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 12:28:24,319 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 12:28:24,319 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 12:28:24,319 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 12:28:24,319 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 12:28:24,319 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 12:28:24,319 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 12:28:24,319 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 12:28:24,320 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 12:28:24,320 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 12:28:24,320 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 12:28:24,320 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 12:28:24,320 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 12:28:24,320 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 12:28:24,320 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 12:28:24,321 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 12:28:24,321 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 12:28:24,321 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 12:28:24,321 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 12:28:24,321 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_7fa37515-c3ef-4a52-9651-72a4b117ef8f/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 [2018-12-09 12:28:24,344 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 12:28:24,352 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 12:28:24,354 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 12:28:24,355 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 12:28:24,355 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 12:28:24,355 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7fa37515-c3ef-4a52-9651-72a4b117ef8f/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-12-09 12:28:24,390 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7fa37515-c3ef-4a52-9651-72a4b117ef8f/bin-2019/uautomizer/data/6bb77fbf4/547490c73e28496fa6dfb7031fa26d16/FLAG0f0471ab6 [2018-12-09 12:28:24,824 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 12:28:24,825 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7fa37515-c3ef-4a52-9651-72a4b117ef8f/sv-benchmarks/c/array-memsafety/cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-12-09 12:28:24,830 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7fa37515-c3ef-4a52-9651-72a4b117ef8f/bin-2019/uautomizer/data/6bb77fbf4/547490c73e28496fa6dfb7031fa26d16/FLAG0f0471ab6 [2018-12-09 12:28:24,840 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7fa37515-c3ef-4a52-9651-72a4b117ef8f/bin-2019/uautomizer/data/6bb77fbf4/547490c73e28496fa6dfb7031fa26d16 [2018-12-09 12:28:24,842 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 12:28:24,843 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-09 12:28:24,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 12:28:24,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 12:28:24,847 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 12:28:24,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:28:24" (1/1) ... [2018-12-09 12:28:24,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7300e139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:24, skipping insertion in model container [2018-12-09 12:28:24,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:28:24" (1/1) ... [2018-12-09 12:28:24,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 12:28:24,880 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 12:28:25,038 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:28:25,077 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 12:28:25,098 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:28:25,118 INFO L195 MainTranslator]: Completed translation [2018-12-09 12:28:25,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:25 WrapperNode [2018-12-09 12:28:25,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 12:28:25,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 12:28:25,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 12:28:25,119 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 12:28:25,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:25" (1/1) ... [2018-12-09 12:28:25,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:25" (1/1) ... [2018-12-09 12:28:25,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:25" (1/1) ... [2018-12-09 12:28:25,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:25" (1/1) ... [2018-12-09 12:28:25,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:25" (1/1) ... [2018-12-09 12:28:25,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:25" (1/1) ... [2018-12-09 12:28:25,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:25" (1/1) ... [2018-12-09 12:28:25,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 12:28:25,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 12:28:25,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 12:28:25,147 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 12:28:25,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7fa37515-c3ef-4a52-9651-72a4b117ef8f/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 [2018-12-09 12:28:25,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 12:28:25,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 12:28:25,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-12-09 12:28:25,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-12-09 12:28:25,178 INFO L138 BoogieDeclarations]: Found implementation of procedure cstrcmp [2018-12-09 12:28:25,178 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 12:28:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-12-09 12:28:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-12-09 12:28:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-09 12:28:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-09 12:28:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-09 12:28:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-09 12:28:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-09 12:28:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-09 12:28:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-09 12:28:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-09 12:28:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-09 12:28:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-09 12:28:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-09 12:28:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-09 12:28:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-09 12:28:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-09 12:28:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-09 12:28:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-09 12:28:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-09 12:28:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-09 12:28:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-09 12:28:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-09 12:28:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-09 12:28:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-09 12:28:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-09 12:28:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-09 12:28:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-09 12:28:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-09 12:28:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-09 12:28:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-09 12:28:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-09 12:28:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-09 12:28:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-09 12:28:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-09 12:28:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-09 12:28:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-09 12:28:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-09 12:28:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-09 12:28:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-09 12:28:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-09 12:28:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-09 12:28:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-09 12:28:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-09 12:28:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-09 12:28:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-09 12:28:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-09 12:28:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-09 12:28:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-09 12:28:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-09 12:28:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-09 12:28:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-09 12:28:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-09 12:28:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-09 12:28:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-09 12:28:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-09 12:28:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-09 12:28:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-09 12:28:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-09 12:28:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-09 12:28:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-09 12:28:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-09 12:28:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-09 12:28:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-09 12:28:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-09 12:28:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-09 12:28:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-09 12:28:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-09 12:28:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-09 12:28:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-09 12:28:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-09 12:28:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-09 12:28:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-09 12:28:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-09 12:28:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-09 12:28:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-09 12:28:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-09 12:28:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-09 12:28:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-09 12:28:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-09 12:28:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-09 12:28:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-09 12:28:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-09 12:28:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-09 12:28:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-09 12:28:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-09 12:28:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-09 12:28:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-09 12:28:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-09 12:28:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-09 12:28:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-09 12:28:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-09 12:28:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-09 12:28:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-09 12:28:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-09 12:28:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-09 12:28:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-09 12:28:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-09 12:28:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-09 12:28:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-09 12:28:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-09 12:28:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-09 12:28:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-09 12:28:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-12-09 12:28:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure cstrcmp [2018-12-09 12:28:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 12:28:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 12:28:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 12:28:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 12:28:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 12:28:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 12:28:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 12:28:25,397 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 12:28:25,397 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 12:28:25,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:28:25 BoogieIcfgContainer [2018-12-09 12:28:25,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 12:28:25,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 12:28:25,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 12:28:25,400 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 12:28:25,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:28:24" (1/3) ... [2018-12-09 12:28:25,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@130a87b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:28:25, skipping insertion in model container [2018-12-09 12:28:25,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:25" (2/3) ... [2018-12-09 12:28:25,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@130a87b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:28:25, skipping insertion in model container [2018-12-09 12:28:25,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:28:25" (3/3) ... [2018-12-09 12:28:25,401 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-12-09 12:28:25,408 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 12:28:25,413 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-12-09 12:28:25,422 INFO L257 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2018-12-09 12:28:25,435 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 12:28:25,436 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 12:28:25,436 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-09 12:28:25,436 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 12:28:25,436 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 12:28:25,436 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 12:28:25,436 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 12:28:25,436 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 12:28:25,436 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 12:28:25,444 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-12-09 12:28:25,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 12:28:25,449 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:28:25,450 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:28:25,451 INFO L423 AbstractCegarLoop]: === Iteration 1 === [cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:28:25,454 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:28:25,454 INFO L82 PathProgramCache]: Analyzing trace with hash 290107144, now seen corresponding path program 1 times [2018-12-09 12:28:25,455 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:28:25,455 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:28:25,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:25,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:28:25,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:28:25,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:25,549 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:28:25,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 12:28:25,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 12:28:25,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 12:28:25,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 12:28:25,561 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 3 states. [2018-12-09 12:28:25,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:28:25,593 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2018-12-09 12:28:25,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 12:28:25,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-09 12:28:25,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:28:25,600 INFO L225 Difference]: With dead ends: 47 [2018-12-09 12:28:25,600 INFO L226 Difference]: Without dead ends: 44 [2018-12-09 12:28:25,601 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 [2018-12-09 12:28:25,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-09 12:28:25,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-12-09 12:28:25,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-09 12:28:25,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2018-12-09 12:28:25,621 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 10 [2018-12-09 12:28:25,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:28:25,621 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2018-12-09 12:28:25,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 12:28:25,622 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2018-12-09 12:28:25,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 12:28:25,622 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:28:25,622 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:28:25,622 INFO L423 AbstractCegarLoop]: === Iteration 2 === [cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:28:25,622 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:28:25,623 INFO L82 PathProgramCache]: Analyzing trace with hash 290107145, now seen corresponding path program 1 times [2018-12-09 12:28:25,623 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:28:25,623 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:28:25,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:25,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:28:25,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:28:25,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:25,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:28:25,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 12:28:25,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 12:28:25,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 12:28:25,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 12:28:25,670 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 4 states. [2018-12-09 12:28:25,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:28:25,682 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2018-12-09 12:28:25,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 12:28:25,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-12-09 12:28:25,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:28:25,683 INFO L225 Difference]: With dead ends: 43 [2018-12-09 12:28:25,683 INFO L226 Difference]: Without dead ends: 43 [2018-12-09 12:28:25,684 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 [2018-12-09 12:28:25,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-09 12:28:25,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-12-09 12:28:25,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-09 12:28:25,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2018-12-09 12:28:25,686 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 10 [2018-12-09 12:28:25,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:28:25,687 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2018-12-09 12:28:25,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 12:28:25,687 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2018-12-09 12:28:25,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 12:28:25,687 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:28:25,687 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:28:25,687 INFO L423 AbstractCegarLoop]: === Iteration 3 === [cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:28:25,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:28:25,688 INFO L82 PathProgramCache]: Analyzing trace with hash 403386909, now seen corresponding path program 1 times [2018-12-09 12:28:25,688 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:28:25,688 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:28:25,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:25,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:28:25,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:28:25,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:25,706 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:28:25,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 12:28:25,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 12:28:25,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 12:28:25,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 12:28:25,707 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 3 states. [2018-12-09 12:28:25,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:28:25,736 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2018-12-09 12:28:25,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 12:28:25,736 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-12-09 12:28:25,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:28:25,737 INFO L225 Difference]: With dead ends: 42 [2018-12-09 12:28:25,737 INFO L226 Difference]: Without dead ends: 42 [2018-12-09 12:28:25,737 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 [2018-12-09 12:28:25,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-09 12:28:25,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-12-09 12:28:25,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-09 12:28:25,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2018-12-09 12:28:25,741 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 11 [2018-12-09 12:28:25,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:28:25,741 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2018-12-09 12:28:25,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 12:28:25,741 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2018-12-09 12:28:25,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 12:28:25,742 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:28:25,742 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:28:25,742 INFO L423 AbstractCegarLoop]: === Iteration 4 === [cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:28:25,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:28:25,743 INFO L82 PathProgramCache]: Analyzing trace with hash 403386910, now seen corresponding path program 1 times [2018-12-09 12:28:25,743 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:28:25,743 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:28:25,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:25,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:28:25,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:28:25,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:25,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:28:25,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 12:28:25,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 12:28:25,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 12:28:25,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 12:28:25,782 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 4 states. [2018-12-09 12:28:25,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:28:25,792 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2018-12-09 12:28:25,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 12:28:25,793 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-12-09 12:28:25,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:28:25,793 INFO L225 Difference]: With dead ends: 41 [2018-12-09 12:28:25,793 INFO L226 Difference]: Without dead ends: 41 [2018-12-09 12:28:25,793 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 [2018-12-09 12:28:25,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-09 12:28:25,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-09 12:28:25,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-09 12:28:25,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-12-09 12:28:25,795 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 11 [2018-12-09 12:28:25,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:28:25,795 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-12-09 12:28:25,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 12:28:25,796 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-12-09 12:28:25,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 12:28:25,796 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:28:25,796 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:28:25,796 INFO L423 AbstractCegarLoop]: === Iteration 5 === [cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:28:25,796 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:28:25,796 INFO L82 PathProgramCache]: Analyzing trace with hash -19041991, now seen corresponding path program 1 times [2018-12-09 12:28:25,796 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:28:25,796 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:28:25,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:25,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:28:25,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:28:25,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:25,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:28:25,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 12:28:25,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 12:28:25,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 12:28:25,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 12:28:25,832 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 5 states. [2018-12-09 12:28:25,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:28:25,868 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2018-12-09 12:28:25,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 12:28:25,868 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-12-09 12:28:25,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:28:25,868 INFO L225 Difference]: With dead ends: 38 [2018-12-09 12:28:25,868 INFO L226 Difference]: Without dead ends: 38 [2018-12-09 12:28:25,869 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 [2018-12-09 12:28:25,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-09 12:28:25,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-09 12:28:25,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-09 12:28:25,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2018-12-09 12:28:25,871 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 14 [2018-12-09 12:28:25,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:28:25,871 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2018-12-09 12:28:25,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 12:28:25,871 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2018-12-09 12:28:25,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 12:28:25,871 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:28:25,871 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:28:25,871 INFO L423 AbstractCegarLoop]: === Iteration 6 === [cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:28:25,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:28:25,872 INFO L82 PathProgramCache]: Analyzing trace with hash -19041990, now seen corresponding path program 1 times [2018-12-09 12:28:25,872 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:28:25,872 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:28:25,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:25,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:28:25,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:28:25,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:25,932 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:28:25,932 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 12:28:25,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 12:28:25,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 12:28:25,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 12:28:25,932 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 7 states. [2018-12-09 12:28:25,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:28:25,997 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2018-12-09 12:28:25,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 12:28:25,997 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-12-09 12:28:25,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:28:25,999 INFO L225 Difference]: With dead ends: 57 [2018-12-09 12:28:25,999 INFO L226 Difference]: Without dead ends: 57 [2018-12-09 12:28:25,999 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 [2018-12-09 12:28:25,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-12-09 12:28:26,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2018-12-09 12:28:26,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-09 12:28:26,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2018-12-09 12:28:26,003 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 14 [2018-12-09 12:28:26,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:28:26,003 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2018-12-09 12:28:26,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 12:28:26,003 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2018-12-09 12:28:26,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 12:28:26,003 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:28:26,003 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:28:26,004 INFO L423 AbstractCegarLoop]: === Iteration 7 === [cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:28:26,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:28:26,004 INFO L82 PathProgramCache]: Analyzing trace with hash -2083064079, now seen corresponding path program 1 times [2018-12-09 12:28:26,004 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:28:26,004 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:28:26,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:26,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:28:26,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:28:26,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:26,021 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:28:26,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 12:28:26,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 12:28:26,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 12:28:26,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 12:28:26,021 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand 3 states. [2018-12-09 12:28:26,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:28:26,027 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2018-12-09 12:28:26,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 12:28:26,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-12-09 12:28:26,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:28:26,028 INFO L225 Difference]: With dead ends: 48 [2018-12-09 12:28:26,028 INFO L226 Difference]: Without dead ends: 48 [2018-12-09 12:28:26,028 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 [2018-12-09 12:28:26,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-12-09 12:28:26,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-12-09 12:28:26,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-09 12:28:26,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2018-12-09 12:28:26,031 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 18 [2018-12-09 12:28:26,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:28:26,031 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2018-12-09 12:28:26,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 12:28:26,031 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-12-09 12:28:26,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 12:28:26,032 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:28:26,032 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:28:26,032 INFO L423 AbstractCegarLoop]: === Iteration 8 === [cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:28:26,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:28:26,032 INFO L82 PathProgramCache]: Analyzing trace with hash -2083073153, now seen corresponding path program 1 times [2018-12-09 12:28:26,032 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:28:26,032 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:28:26,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:26,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:28:26,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:28:26,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:26,053 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:28:26,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 12:28:26,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 12:28:26,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 12:28:26,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 12:28:26,054 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 5 states. [2018-12-09 12:28:26,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:28:26,082 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2018-12-09 12:28:26,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 12:28:26,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-12-09 12:28:26,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:28:26,083 INFO L225 Difference]: With dead ends: 46 [2018-12-09 12:28:26,083 INFO L226 Difference]: Without dead ends: 46 [2018-12-09 12:28:26,083 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 [2018-12-09 12:28:26,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-09 12:28:26,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-12-09 12:28:26,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-09 12:28:26,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2018-12-09 12:28:26,085 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 18 [2018-12-09 12:28:26,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:28:26,085 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2018-12-09 12:28:26,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 12:28:26,086 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2018-12-09 12:28:26,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 12:28:26,086 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:28:26,086 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:28:26,086 INFO L423 AbstractCegarLoop]: === Iteration 9 === [cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:28:26,086 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:28:26,086 INFO L82 PathProgramCache]: Analyzing trace with hash -2083073152, now seen corresponding path program 1 times [2018-12-09 12:28:26,086 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:28:26,086 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:28:26,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:26,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:28:26,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:28:26,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:26,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:28:26,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 12:28:26,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 12:28:26,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 12:28:26,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 12:28:26,145 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand 7 states. [2018-12-09 12:28:26,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:28:26,196 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2018-12-09 12:28:26,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 12:28:26,197 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-12-09 12:28:26,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:28:26,198 INFO L225 Difference]: With dead ends: 53 [2018-12-09 12:28:26,198 INFO L226 Difference]: Without dead ends: 53 [2018-12-09 12:28:26,198 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 [2018-12-09 12:28:26,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-12-09 12:28:26,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 48. [2018-12-09 12:28:26,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-09 12:28:26,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2018-12-09 12:28:26,201 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 18 [2018-12-09 12:28:26,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:28:26,202 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2018-12-09 12:28:26,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 12:28:26,202 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2018-12-09 12:28:26,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 12:28:26,202 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:28:26,202 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] [2018-12-09 12:28:26,203 INFO L423 AbstractCegarLoop]: === Iteration 10 === [cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:28:26,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:28:26,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1150149187, now seen corresponding path program 1 times [2018-12-09 12:28:26,203 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:28:26,203 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:28:26,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:26,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:28:26,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:28:26,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:26,319 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:28:26,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 12:28:26,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 12:28:26,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 12:28:26,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-12-09 12:28:26,320 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand 9 states. [2018-12-09 12:28:26,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:28:26,394 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2018-12-09 12:28:26,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 12:28:26,395 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-12-09 12:28:26,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:28:26,395 INFO L225 Difference]: With dead ends: 69 [2018-12-09 12:28:26,395 INFO L226 Difference]: Without dead ends: 69 [2018-12-09 12:28:26,396 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-12-09 12:28:26,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-12-09 12:28:26,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 66. [2018-12-09 12:28:26,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-12-09 12:28:26,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 74 transitions. [2018-12-09 12:28:26,399 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 74 transitions. Word has length 21 [2018-12-09 12:28:26,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:28:26,399 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 74 transitions. [2018-12-09 12:28:26,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 12:28:26,399 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 74 transitions. [2018-12-09 12:28:26,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 12:28:26,399 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:28:26,399 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] [2018-12-09 12:28:26,400 INFO L423 AbstractCegarLoop]: === Iteration 11 === [cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:28:26,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:28:26,400 INFO L82 PathProgramCache]: Analyzing trace with hash -129714491, now seen corresponding path program 1 times [2018-12-09 12:28:26,400 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:28:26,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:28:26,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:26,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:28:26,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:28:26,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:26,541 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 12:28:26,541 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7fa37515-c3ef-4a52-9651-72a4b117ef8f/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 [2018-12-09 12:28:26,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:28:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:28:26,570 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:28:26,610 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 [2018-12-09 12:28:26,612 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 [2018-12-09 12:28:26,612 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 12:28:26,613 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 12:28:26,615 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 12:28:26,615 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-12-09 12:28:26,745 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 [2018-12-09 12:28:26,749 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 [2018-12-09 12:28:26,749 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 12:28:26,769 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 [2018-12-09 12:28:26,769 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 12:28:26,783 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 [2018-12-09 12:28:26,783 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 12:28:26,796 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-09 12:28:26,807 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 12:28:26,808 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:30, output treesize:8 [2018-12-09 12:28:26,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:26,852 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 12:28:26,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 21 [2018-12-09 12:28:26,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-09 12:28:26,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-09 12:28:26,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2018-12-09 12:28:26,853 INFO L87 Difference]: Start difference. First operand 66 states and 74 transitions. Second operand 21 states. [2018-12-09 12:28:27,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:28:27,669 INFO L93 Difference]: Finished difference Result 146 states and 162 transitions. [2018-12-09 12:28:27,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-12-09 12:28:27,669 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 21 [2018-12-09 12:28:27,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:28:27,670 INFO L225 Difference]: With dead ends: 146 [2018-12-09 12:28:27,670 INFO L226 Difference]: Without dead ends: 146 [2018-12-09 12:28:27,670 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 [2018-12-09 12:28:27,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-12-09 12:28:27,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 95. [2018-12-09 12:28:27,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-12-09 12:28:27,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 108 transitions. [2018-12-09 12:28:27,674 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 108 transitions. Word has length 21 [2018-12-09 12:28:27,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:28:27,675 INFO L480 AbstractCegarLoop]: Abstraction has 95 states and 108 transitions. [2018-12-09 12:28:27,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-09 12:28:27,675 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 108 transitions. [2018-12-09 12:28:27,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 12:28:27,675 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:28:27,675 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] [2018-12-09 12:28:27,676 INFO L423 AbstractCegarLoop]: === Iteration 12 === [cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:28:27,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:28:27,676 INFO L82 PathProgramCache]: Analyzing trace with hash -824303671, now seen corresponding path program 1 times [2018-12-09 12:28:27,676 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:28:27,676 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:28:27,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:27,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:28:27,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:28:27,828 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:27,828 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 12:28:27,828 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7fa37515-c3ef-4a52-9651-72a4b117ef8f/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 [2018-12-09 12:28:27,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:28:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:28:27,855 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:28:27,860 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 [2018-12-09 12:28:27,861 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 [2018-12-09 12:28:27,861 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 12:28:27,862 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 12:28:27,866 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. [2018-12-09 12:28:27,866 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-12-09 12:28:28,063 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 [2018-12-09 12:28:28,070 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 [2018-12-09 12:28:28,070 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-12-09 12:28:28,101 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 [2018-12-09 12:28:28,102 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 4 xjuncts. [2018-12-09 12:28:28,131 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 [2018-12-09 12:28:28,131 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 12:28:28,133 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 [2018-12-09 12:28:28,133 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-09 12:28:28,155 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-12-09 12:28:28,184 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-12-09 12:28:28,184 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:49, output treesize:66 [2018-12-09 12:28:28,246 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:28,261 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 12:28:28,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 22 [2018-12-09 12:28:28,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-12-09 12:28:28,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-12-09 12:28:28,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2018-12-09 12:28:28,262 INFO L87 Difference]: Start difference. First operand 95 states and 108 transitions. Second operand 23 states. [2018-12-09 12:28:29,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:28:29,179 INFO L93 Difference]: Finished difference Result 124 states and 140 transitions. [2018-12-09 12:28:29,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-09 12:28:29,179 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 25 [2018-12-09 12:28:29,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:28:29,180 INFO L225 Difference]: With dead ends: 124 [2018-12-09 12:28:29,180 INFO L226 Difference]: Without dead ends: 124 [2018-12-09 12:28:29,180 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=213, Invalid=1047, Unknown=0, NotChecked=0, Total=1260 [2018-12-09 12:28:29,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-12-09 12:28:29,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 93. [2018-12-09 12:28:29,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-12-09 12:28:29,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 105 transitions. [2018-12-09 12:28:29,183 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 105 transitions. Word has length 25 [2018-12-09 12:28:29,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:28:29,183 INFO L480 AbstractCegarLoop]: Abstraction has 93 states and 105 transitions. [2018-12-09 12:28:29,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-12-09 12:28:29,183 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 105 transitions. [2018-12-09 12:28:29,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 12:28:29,184 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:28:29,184 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] [2018-12-09 12:28:29,184 INFO L423 AbstractCegarLoop]: === Iteration 13 === [cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:28:29,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:28:29,184 INFO L82 PathProgramCache]: Analyzing trace with hash -67902013, now seen corresponding path program 1 times [2018-12-09 12:28:29,184 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:28:29,184 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:28:29,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:29,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:28:29,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:28:29,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:29,215 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:28:29,215 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 12:28:29,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 12:28:29,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 12:28:29,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 12:28:29,216 INFO L87 Difference]: Start difference. First operand 93 states and 105 transitions. Second operand 4 states. [2018-12-09 12:28:29,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:28:29,248 INFO L93 Difference]: Finished difference Result 92 states and 104 transitions. [2018-12-09 12:28:29,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 12:28:29,248 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-12-09 12:28:29,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:28:29,248 INFO L225 Difference]: With dead ends: 92 [2018-12-09 12:28:29,248 INFO L226 Difference]: Without dead ends: 43 [2018-12-09 12:28:29,248 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 [2018-12-09 12:28:29,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-09 12:28:29,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-12-09 12:28:29,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-09 12:28:29,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2018-12-09 12:28:29,250 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 27 [2018-12-09 12:28:29,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:28:29,250 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2018-12-09 12:28:29,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 12:28:29,250 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2018-12-09 12:28:29,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 12:28:29,250 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:28:29,250 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] [2018-12-09 12:28:29,251 INFO L423 AbstractCegarLoop]: === Iteration 14 === [cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:28:29,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:28:29,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1792296282, now seen corresponding path program 1 times [2018-12-09 12:28:29,251 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:28:29,251 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:28:29,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:29,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:28:29,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:28:29,463 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:29,463 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 12:28:29,463 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7fa37515-c3ef-4a52-9651-72a4b117ef8f/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 [2018-12-09 12:28:29,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:28:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:28:29,486 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:28:29,497 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 [2018-12-09 12:28:29,499 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 [2018-12-09 12:28:29,500 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 12:28:29,503 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 12:28:29,508 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 [2018-12-09 12:28:29,508 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 12:28:29,512 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 12:28:29,512 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:21, output treesize:18 [2018-12-09 12:28:29,529 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 [2018-12-09 12:28:29,530 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 [2018-12-09 12:28:29,531 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 12:28:29,532 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 12:28:29,535 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 12:28:29,535 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-12-09 12:28:29,551 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 [2018-12-09 12:28:29,552 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 [2018-12-09 12:28:29,553 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 12:28:29,557 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 12:28:29,560 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. [2018-12-09 12:28:29,561 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:28 [2018-12-09 12:28:29,656 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 [2018-12-09 12:28:29,657 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 [2018-12-09 12:28:29,657 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 12:28:29,668 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 [2018-12-09 12:28:29,668 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-12-09 12:28:29,671 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-09 12:28:29,676 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-12-09 12:28:29,676 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:45, output treesize:34 [2018-12-09 12:28:29,728 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:29,743 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 12:28:29,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 19 [2018-12-09 12:28:29,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-12-09 12:28:29,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-12-09 12:28:29,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2018-12-09 12:28:29,744 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 20 states. [2018-12-09 12:28:30,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:28:30,700 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-12-09 12:28:30,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 12:28:30,701 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 28 [2018-12-09 12:28:30,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:28:30,701 INFO L225 Difference]: With dead ends: 44 [2018-12-09 12:28:30,701 INFO L226 Difference]: Without dead ends: 44 [2018-12-09 12:28:30,702 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 [2018-12-09 12:28:30,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-09 12:28:30,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2018-12-09 12:28:30,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-12-09 12:28:30,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2018-12-09 12:28:30,703 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 28 [2018-12-09 12:28:30,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:28:30,704 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2018-12-09 12:28:30,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-12-09 12:28:30,704 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2018-12-09 12:28:30,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-09 12:28:30,704 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:28:30,704 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] [2018-12-09 12:28:30,704 INFO L423 AbstractCegarLoop]: === Iteration 15 === [cstrcmpErr7REQUIRES_VIOLATION, cstrcmpErr2REQUIRES_VIOLATION, cstrcmpErr3REQUIRES_VIOLATION, cstrcmpErr8REQUIRES_VIOLATION, cstrcmpErr9REQUIRES_VIOLATION, cstrcmpErr4REQUIRES_VIOLATION, cstrcmpErr5REQUIRES_VIOLATION, cstrcmpErr0REQUIRES_VIOLATION, cstrcmpErr6REQUIRES_VIOLATION, cstrcmpErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:28:30,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:28:30,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1308190816, now seen corresponding path program 2 times [2018-12-09 12:28:30,705 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:28:30,705 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:28:30,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:30,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:28:30,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:28:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:28:31,017 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:31,017 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 12:28:31,017 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7fa37515-c3ef-4a52-9651-72a4b117ef8f/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 [2018-12-09 12:28:31,023 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-09 12:28:31,037 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-09 12:28:31,037 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 12:28:31,039 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:28:31,042 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 [2018-12-09 12:28:31,048 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 [2018-12-09 12:28:31,049 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-12-09 12:28:31,054 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-09 12:28:31,061 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 12:28:31,061 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:13, output treesize:9 [2018-12-09 12:28:31,077 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 [2018-12-09 12:28:31,078 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 [2018-12-09 12:28:31,078 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 12:28:31,080 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 12:28:31,083 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 12:28:31,083 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2018-12-09 12:28:31,281 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 [2018-12-09 12:28:31,283 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 [2018-12-09 12:28:31,284 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 12:28:31,300 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 [2018-12-09 12:28:31,300 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-12-09 12:28:31,334 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 [2018-12-09 12:28:31,335 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 4 xjuncts. [2018-12-09 12:28:31,358 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-12-09 12:28:31,386 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-12-09 12:28:31,387 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:53, output treesize:98 [2018-12-09 12:28:31,470 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:28:31,485 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 12:28:31,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2018-12-09 12:28:31,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-12-09 12:28:31,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-12-09 12:28:31,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2018-12-09 12:28:31,486 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 25 states. [2018-12-09 12:28:32,059 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2018-12-09 12:28:33,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:28:33,026 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-12-09 12:28:33,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-12-09 12:28:33,026 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 32 [2018-12-09 12:28:33,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:28:33,027 INFO L225 Difference]: With dead ends: 41 [2018-12-09 12:28:33,027 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 12:28:33,027 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=317, Invalid=1663, Unknown=0, NotChecked=0, Total=1980 [2018-12-09 12:28:33,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 12:28:33,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 12:28:33,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 12:28:33,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 12:28:33,028 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-12-09 12:28:33,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:28:33,028 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 12:28:33,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-12-09 12:28:33,028 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 12:28:33,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 12:28:33,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:28:33 BoogieIcfgContainer [2018-12-09 12:28:33,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 12:28:33,031 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 12:28:33,031 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 12:28:33,031 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 12:28:33,031 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:28:25" (3/4) ... [2018-12-09 12:28:33,033 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 12:28:33,037 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 12:28:33,037 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cstrcmp [2018-12-09 12:28:33,037 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2018-12-09 12:28:33,038 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2018-12-09 12:28:33,038 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 12:28:33,040 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-12-09 12:28:33,040 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-09 12:28:33,040 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 12:28:33,068 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7fa37515-c3ef-4a52-9651-72a4b117ef8f/bin-2019/uautomizer/witness.graphml [2018-12-09 12:28:33,068 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 12:28:33,068 INFO L168 Benchmark]: Toolchain (without parser) took 8225.75 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 317.7 MB). Free memory was 951.7 MB in the beginning and 890.6 MB in the end (delta: 61.0 MB). Peak memory consumption was 378.8 MB. Max. memory is 11.5 GB. [2018-12-09 12:28:33,069 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:28:33,069 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -169.3 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2018-12-09 12:28:33,069 INFO L168 Benchmark]: Boogie Preprocessor took 27.99 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. [2018-12-09 12:28:33,069 INFO L168 Benchmark]: RCFGBuilder took 250.10 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: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 11.5 GB. [2018-12-09 12:28:33,070 INFO L168 Benchmark]: TraceAbstraction took 7633.05 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 180.9 MB). Free memory was 1.1 GB in the beginning and 890.6 MB in the end (delta: 184.3 MB). Peak memory consumption was 365.2 MB. Max. memory is 11.5 GB. [2018-12-09 12:28:33,070 INFO L168 Benchmark]: Witness Printer took 36.93 ms. Allocated memory is still 1.3 GB. Free memory is still 890.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:28:33,071 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 275.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -169.3 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.99 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 250.10 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: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7633.05 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 180.9 MB). Free memory was 1.1 GB in the beginning and 890.6 MB in the end (delta: 184.3 MB). Peak memory consumption was 365.2 MB. Max. memory is 11.5 GB. * Witness Printer took 36.93 ms. Allocated memory is still 1.3 GB. Free memory is still 890.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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: 548]: 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: 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: 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: 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 - PositiveResult [Line: 563]: 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 - 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, 7.5s OverallTime, 15 OverallIterations, 3 TraceHistogramMax, 4.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 478 SDtfs, 998 SDslu, 1878 SDs, 0 SdLazy, 2102 SolverSat, 196 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 278 GetRequests, 83 SyntacticMatches, 5 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 875 ImplicationChecksByTransitivity, 4.8s 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, 2.5s 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...