./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-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_6d4cc541-6a7d-4013-a7ac-94386ca0f463/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6d4cc541-6a7d-4013-a7ac-94386ca0f463/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6d4cc541-6a7d-4013-a7ac-94386ca0f463/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6d4cc541-6a7d-4013-a7ac-94386ca0f463/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6d4cc541-6a7d-4013-a7ac-94386ca0f463/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6d4cc541-6a7d-4013-a7ac-94386ca0f463/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 aa22a20876a8e4326d678ff2db099090fa4b56ec ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 08:30:57,077 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 08:30:57,078 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 08:30:57,084 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 08:30:57,084 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 08:30:57,084 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 08:30:57,085 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 08:30:57,086 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 08:30:57,087 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 08:30:57,088 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 08:30:57,088 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 08:30:57,088 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 08:30:57,089 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 08:30:57,089 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 08:30:57,090 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 08:30:57,090 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 08:30:57,091 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 08:30:57,092 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 08:30:57,093 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 08:30:57,093 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 08:30:57,094 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 08:30:57,095 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 08:30:57,096 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 08:30:57,096 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 08:30:57,096 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 08:30:57,097 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 08:30:57,097 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 08:30:57,098 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 08:30:57,098 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 08:30:57,099 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 08:30:57,099 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 08:30:57,099 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 08:30:57,099 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 08:30:57,100 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 08:30:57,100 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 08:30:57,101 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 08:30:57,101 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6d4cc541-6a7d-4013-a7ac-94386ca0f463/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-12-02 08:30:57,108 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 08:30:57,108 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 08:30:57,109 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 08:30:57,109 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 08:30:57,109 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 08:30:57,109 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 08:30:57,109 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 08:30:57,109 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 08:30:57,110 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 08:30:57,110 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 08:30:57,110 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 08:30:57,110 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 08:30:57,110 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 08:30:57,110 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-02 08:30:57,110 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-02 08:30:57,110 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-02 08:30:57,111 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 08:30:57,111 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 08:30:57,111 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 08:30:57,111 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 08:30:57,111 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 08:30:57,111 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 08:30:57,111 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 08:30:57,111 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 08:30:57,112 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 08:30:57,112 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 08:30:57,112 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 08:30:57,112 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 08:30:57,112 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_6d4cc541-6a7d-4013-a7ac-94386ca0f463/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 -> aa22a20876a8e4326d678ff2db099090fa4b56ec [2018-12-02 08:30:57,129 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 08:30:57,137 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 08:30:57,139 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 08:30:57,140 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 08:30:57,141 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 08:30:57,141 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6d4cc541-6a7d-4013-a7ac-94386ca0f463/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i [2018-12-02 08:30:57,179 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6d4cc541-6a7d-4013-a7ac-94386ca0f463/bin-2019/uautomizer/data/983051839/5939b5e545c04ea086a62ba491f0fbc4/FLAG68ee29a12 [2018-12-02 08:30:57,571 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 08:30:57,571 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6d4cc541-6a7d-4013-a7ac-94386ca0f463/sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i [2018-12-02 08:30:57,578 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6d4cc541-6a7d-4013-a7ac-94386ca0f463/bin-2019/uautomizer/data/983051839/5939b5e545c04ea086a62ba491f0fbc4/FLAG68ee29a12 [2018-12-02 08:30:57,918 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6d4cc541-6a7d-4013-a7ac-94386ca0f463/bin-2019/uautomizer/data/983051839/5939b5e545c04ea086a62ba491f0fbc4 [2018-12-02 08:30:57,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 08:30:57,920 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-02 08:30:57,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 08:30:57,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 08:30:57,923 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 08:30:57,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:30:57" (1/1) ... [2018-12-02 08:30:57,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c110ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:57, skipping insertion in model container [2018-12-02 08:30:57,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:30:57" (1/1) ... [2018-12-02 08:30:57,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 08:30:57,947 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 08:30:58,084 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 08:30:58,091 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 08:30:58,150 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 08:30:58,173 INFO L195 MainTranslator]: Completed translation [2018-12-02 08:30:58,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:58 WrapperNode [2018-12-02 08:30:58,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 08:30:58,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 08:30:58,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 08:30:58,174 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 08:30:58,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:58" (1/1) ... [2018-12-02 08:30:58,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:58" (1/1) ... [2018-12-02 08:30:58,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:58" (1/1) ... [2018-12-02 08:30:58,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:58" (1/1) ... [2018-12-02 08:30:58,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:58" (1/1) ... [2018-12-02 08:30:58,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:58" (1/1) ... [2018-12-02 08:30:58,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:58" (1/1) ... [2018-12-02 08:30:58,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 08:30:58,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 08:30:58,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 08:30:58,209 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 08:30:58,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d4cc541-6a7d-4013-a7ac-94386ca0f463/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 [2018-12-02 08:30:58,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 08:30:58,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 08:30:58,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-12-02 08:30:58,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-12-02 08:30:58,242 INFO L138 BoogieDeclarations]: Found implementation of procedure cbzero [2018-12-02 08:30:58,242 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 08:30:58,242 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-12-02 08:30:58,242 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-12-02 08:30:58,243 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-02 08:30:58,243 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-02 08:30:58,243 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-02 08:30:58,243 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-02 08:30:58,243 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-02 08:30:58,243 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-02 08:30:58,243 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-02 08:30:58,243 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-02 08:30:58,243 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-02 08:30:58,244 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-02 08:30:58,244 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-02 08:30:58,244 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-02 08:30:58,244 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-02 08:30:58,244 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-02 08:30:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-02 08:30:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-02 08:30:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-02 08:30:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-02 08:30:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-02 08:30:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-02 08:30:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-02 08:30:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-02 08:30:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-02 08:30:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-02 08:30:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-02 08:30:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-02 08:30:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-02 08:30:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-02 08:30:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-02 08:30:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-02 08:30:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-02 08:30:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-02 08:30:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-02 08:30:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-02 08:30:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-02 08:30:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-02 08:30:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-02 08:30:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-02 08:30:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-02 08:30:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-02 08:30:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-02 08:30:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-02 08:30:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-02 08:30:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-02 08:30:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-02 08:30:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-02 08:30:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-02 08:30:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-02 08:30:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-02 08:30:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-02 08:30:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-02 08:30:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-02 08:30:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-02 08:30:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-02 08:30:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-02 08:30:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-02 08:30:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-02 08:30:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-02 08:30:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-02 08:30:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-02 08:30:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-02 08:30:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-02 08:30:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-02 08:30:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-02 08:30:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-02 08:30:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-02 08:30:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-02 08:30:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-02 08:30:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-02 08:30:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-02 08:30:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-02 08:30:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-02 08:30:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-02 08:30:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-02 08:30:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-02 08:30:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-02 08:30:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-02 08:30:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-02 08:30:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-02 08:30:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-02 08:30:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-02 08:30:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-02 08:30:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-02 08:30:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-02 08:30:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-02 08:30:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-02 08:30:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-02 08:30:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-02 08:30:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-02 08:30:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-02 08:30:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-02 08:30:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-02 08:30:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-02 08:30:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-02 08:30:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-02 08:30:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-02 08:30:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-02 08:30:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-02 08:30:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-02 08:30:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-02 08:30:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-12-02 08:30:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure cbzero [2018-12-02 08:30:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 08:30:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 08:30:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 08:30:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 08:30:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 08:30:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 08:30:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 08:30:58,449 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 08:30:58,449 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 08:30:58,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:30:58 BoogieIcfgContainer [2018-12-02 08:30:58,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 08:30:58,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 08:30:58,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 08:30:58,452 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 08:30:58,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:30:57" (1/3) ... [2018-12-02 08:30:58,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625ebf7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:30:58, skipping insertion in model container [2018-12-02 08:30:58,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:58" (2/3) ... [2018-12-02 08:30:58,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625ebf7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:30:58, skipping insertion in model container [2018-12-02 08:30:58,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:30:58" (3/3) ... [2018-12-02 08:30:58,454 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i [2018-12-02 08:30:58,460 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 08:30:58,465 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-02 08:30:58,475 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-02 08:30:58,491 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 08:30:58,491 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 08:30:58,491 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-02 08:30:58,491 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 08:30:58,491 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 08:30:58,491 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 08:30:58,492 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 08:30:58,492 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 08:30:58,492 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 08:30:58,501 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-12-02 08:30:58,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 08:30:58,507 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:30:58,507 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:30:58,508 INFO L423 AbstractCegarLoop]: === Iteration 1 === [cbzeroErr1REQUIRES_VIOLATION, cbzeroErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-02 08:30:58,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:30:58,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1895989102, now seen corresponding path program 1 times [2018-12-02 08:30:58,513 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:30:58,513 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:30:58,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:58,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:30:58,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:30:58,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:30:58,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:30:58,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 08:30:58,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 08:30:58,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 08:30:58,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 08:30:58,613 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 4 states. [2018-12-02 08:30:58,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:30:58,643 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-12-02 08:30:58,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 08:30:58,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-12-02 08:30:58,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:30:58,649 INFO L225 Difference]: With dead ends: 29 [2018-12-02 08:30:58,649 INFO L226 Difference]: Without dead ends: 25 [2018-12-02 08:30:58,650 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-02 08:30:58,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-12-02 08:30:58,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2018-12-02 08:30:58,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-02 08:30:58,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2018-12-02 08:30:58,670 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 10 [2018-12-02 08:30:58,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:30:58,670 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2018-12-02 08:30:58,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 08:30:58,670 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2018-12-02 08:30:58,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 08:30:58,670 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:30:58,671 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:30:58,671 INFO L423 AbstractCegarLoop]: === Iteration 2 === [cbzeroErr1REQUIRES_VIOLATION, cbzeroErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-02 08:30:58,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:30:58,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1895991024, now seen corresponding path program 1 times [2018-12-02 08:30:58,671 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:30:58,671 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:30:58,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:58,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:30:58,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:30:58,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:30:58,688 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:30:58,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 08:30:58,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 08:30:58,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 08:30:58,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 08:30:58,689 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 3 states. [2018-12-02 08:30:58,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:30:58,699 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2018-12-02 08:30:58,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 08:30:58,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-02 08:30:58,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:30:58,701 INFO L225 Difference]: With dead ends: 24 [2018-12-02 08:30:58,701 INFO L226 Difference]: Without dead ends: 23 [2018-12-02 08:30:58,701 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 [2018-12-02 08:30:58,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-12-02 08:30:58,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-12-02 08:30:58,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-12-02 08:30:58,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-12-02 08:30:58,704 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 10 [2018-12-02 08:30:58,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:30:58,704 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-12-02 08:30:58,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 08:30:58,704 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-12-02 08:30:58,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 08:30:58,705 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:30:58,705 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:30:58,705 INFO L423 AbstractCegarLoop]: === Iteration 3 === [cbzeroErr1REQUIRES_VIOLATION, cbzeroErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-02 08:30:58,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:30:58,706 INFO L82 PathProgramCache]: Analyzing trace with hash 633507385, now seen corresponding path program 1 times [2018-12-02 08:30:58,706 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:30:58,706 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:30:58,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:58,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:30:58,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:30:58,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:30:58,758 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:30:58,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 08:30:58,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 08:30:58,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 08:30:58,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 08:30:58,758 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 6 states. [2018-12-02 08:30:58,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:30:58,801 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-12-02 08:30:58,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 08:30:58,801 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-12-02 08:30:58,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:30:58,802 INFO L225 Difference]: With dead ends: 21 [2018-12-02 08:30:58,802 INFO L226 Difference]: Without dead ends: 21 [2018-12-02 08:30:58,802 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-02 08:30:58,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-02 08:30:58,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-12-02 08:30:58,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-02 08:30:58,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-12-02 08:30:58,804 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 14 [2018-12-02 08:30:58,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:30:58,804 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-12-02 08:30:58,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 08:30:58,804 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-12-02 08:30:58,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 08:30:58,804 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:30:58,804 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:30:58,804 INFO L423 AbstractCegarLoop]: === Iteration 4 === [cbzeroErr1REQUIRES_VIOLATION, cbzeroErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-02 08:30:58,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:30:58,805 INFO L82 PathProgramCache]: Analyzing trace with hash 633507386, now seen corresponding path program 1 times [2018-12-02 08:30:58,805 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:30:58,805 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:30:58,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:58,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:30:58,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:30:58,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:30:58,862 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:30:58,862 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 08:30:58,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 08:30:58,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 08:30:58,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 08:30:58,863 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 7 states. [2018-12-02 08:30:58,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:30:58,916 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2018-12-02 08:30:58,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 08:30:58,916 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-12-02 08:30:58,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:30:58,918 INFO L225 Difference]: With dead ends: 27 [2018-12-02 08:30:58,918 INFO L226 Difference]: Without dead ends: 27 [2018-12-02 08:30:58,918 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-02 08:30:58,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-02 08:30:58,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2018-12-02 08:30:58,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-02 08:30:58,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2018-12-02 08:30:58,922 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 14 [2018-12-02 08:30:58,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:30:58,922 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2018-12-02 08:30:58,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 08:30:58,922 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2018-12-02 08:30:58,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 08:30:58,922 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:30:58,923 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:30:58,923 INFO L423 AbstractCegarLoop]: === Iteration 5 === [cbzeroErr1REQUIRES_VIOLATION, cbzeroErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-02 08:30:58,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:30:58,923 INFO L82 PathProgramCache]: Analyzing trace with hash 730618770, now seen corresponding path program 1 times [2018-12-02 08:30:58,923 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:30:58,923 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:30:58,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:58,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:30:58,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:30:58,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:30:58,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:30:58,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 08:30:58,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 08:30:58,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 08:30:58,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 08:30:58,973 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 6 states. [2018-12-02 08:30:58,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:30:58,996 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2018-12-02 08:30:58,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 08:30:58,996 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-12-02 08:30:58,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:30:58,998 INFO L225 Difference]: With dead ends: 31 [2018-12-02 08:30:58,998 INFO L226 Difference]: Without dead ends: 31 [2018-12-02 08:30:58,998 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 08:30:58,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-12-02 08:30:59,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2018-12-02 08:30:59,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-12-02 08:30:59,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2018-12-02 08:30:59,005 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2018-12-02 08:30:59,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:30:59,006 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2018-12-02 08:30:59,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 08:30:59,006 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2018-12-02 08:30:59,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 08:30:59,006 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:30:59,007 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:30:59,007 INFO L423 AbstractCegarLoop]: === Iteration 6 === [cbzeroErr1REQUIRES_VIOLATION, cbzeroErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-02 08:30:59,007 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:30:59,007 INFO L82 PathProgramCache]: Analyzing trace with hash 337591760, now seen corresponding path program 1 times [2018-12-02 08:30:59,007 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:30:59,007 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:30:59,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:59,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:30:59,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:30:59,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:30:59,047 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:30:59,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 08:30:59,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 08:30:59,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 08:30:59,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 08:30:59,048 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 4 states. [2018-12-02 08:30:59,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:30:59,069 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2018-12-02 08:30:59,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 08:30:59,070 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-12-02 08:30:59,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:30:59,070 INFO L225 Difference]: With dead ends: 27 [2018-12-02 08:30:59,070 INFO L226 Difference]: Without dead ends: 21 [2018-12-02 08:30:59,071 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 [2018-12-02 08:30:59,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-02 08:30:59,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2018-12-02 08:30:59,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-12-02 08:30:59,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-12-02 08:30:59,073 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 17 [2018-12-02 08:30:59,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:30:59,073 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-12-02 08:30:59,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 08:30:59,073 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-12-02 08:30:59,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 08:30:59,074 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:30:59,074 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:30:59,074 INFO L423 AbstractCegarLoop]: === Iteration 7 === [cbzeroErr1REQUIRES_VIOLATION, cbzeroErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-02 08:30:59,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:30:59,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1223076658, now seen corresponding path program 1 times [2018-12-02 08:30:59,074 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:30:59,075 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:30:59,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:59,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:30:59,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:59,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:30:59,129 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:30:59,129 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:30:59,129 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d4cc541-6a7d-4013-a7ac-94386ca0f463/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 [2018-12-02 08:30:59,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:30:59,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:30:59,154 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:30:59,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:30:59,199 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 08:30:59,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2018-12-02 08:30:59,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 08:30:59,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 08:30:59,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-02 08:30:59,200 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 8 states. [2018-12-02 08:30:59,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:30:59,237 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2018-12-02 08:30:59,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 08:30:59,237 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-12-02 08:30:59,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:30:59,237 INFO L225 Difference]: With dead ends: 28 [2018-12-02 08:30:59,238 INFO L226 Difference]: Without dead ends: 19 [2018-12-02 08:30:59,238 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-12-02 08:30:59,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-12-02 08:30:59,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-12-02 08:30:59,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-12-02 08:30:59,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-12-02 08:30:59,240 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 18 [2018-12-02 08:30:59,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:30:59,240 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2018-12-02 08:30:59,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 08:30:59,241 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-12-02 08:30:59,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 08:30:59,241 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:30:59,241 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:30:59,241 INFO L423 AbstractCegarLoop]: === Iteration 8 === [cbzeroErr1REQUIRES_VIOLATION, cbzeroErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-02 08:30:59,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:30:59,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1924141236, now seen corresponding path program 1 times [2018-12-02 08:30:59,242 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:30:59,242 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:30:59,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:59,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:30:59,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:30:59,329 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:30:59,329 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:30:59,329 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d4cc541-6a7d-4013-a7ac-94386ca0f463/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 [2018-12-02 08:30:59,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:30:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:30:59,350 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:30:59,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:30:59,384 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 08:30:59,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2018-12-02 08:30:59,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 08:30:59,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 08:30:59,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-12-02 08:30:59,385 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 10 states. [2018-12-02 08:30:59,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:30:59,437 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2018-12-02 08:30:59,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 08:30:59,437 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2018-12-02 08:30:59,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:30:59,437 INFO L225 Difference]: With dead ends: 29 [2018-12-02 08:30:59,437 INFO L226 Difference]: Without dead ends: 19 [2018-12-02 08:30:59,437 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-12-02 08:30:59,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-12-02 08:30:59,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-12-02 08:30:59,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-12-02 08:30:59,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-12-02 08:30:59,439 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 18 [2018-12-02 08:30:59,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:30:59,439 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-12-02 08:30:59,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 08:30:59,439 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-12-02 08:30:59,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 08:30:59,439 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:30:59,439 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:30:59,439 INFO L423 AbstractCegarLoop]: === Iteration 9 === [cbzeroErr1REQUIRES_VIOLATION, cbzeroErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-02 08:30:59,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:30:59,440 INFO L82 PathProgramCache]: Analyzing trace with hash -2112660622, now seen corresponding path program 1 times [2018-12-02 08:30:59,440 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:30:59,440 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:30:59,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:59,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:30:59,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:30:59,554 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:30:59,554 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:30:59,554 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d4cc541-6a7d-4013-a7ac-94386ca0f463/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 [2018-12-02 08:30:59,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:30:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:30:59,571 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:30:59,588 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-02 08:30:59,589 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 08:30:59,596 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 08:30:59,597 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:12 [2018-12-02 08:30:59,705 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:30:59,719 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 08:30:59,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2018-12-02 08:30:59,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-12-02 08:30:59,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-12-02 08:30:59,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2018-12-02 08:30:59,720 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 19 states. [2018-12-02 08:30:59,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:30:59,909 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-12-02 08:30:59,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-02 08:30:59,910 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 18 [2018-12-02 08:30:59,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:30:59,910 INFO L225 Difference]: With dead ends: 24 [2018-12-02 08:30:59,910 INFO L226 Difference]: Without dead ends: 24 [2018-12-02 08:30:59,911 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2018-12-02 08:30:59,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-12-02 08:30:59,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2018-12-02 08:30:59,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-02 08:30:59,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-12-02 08:30:59,913 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 18 [2018-12-02 08:30:59,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:30:59,913 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-12-02 08:30:59,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-12-02 08:30:59,914 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-12-02 08:30:59,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 08:30:59,914 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:30:59,914 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:30:59,915 INFO L423 AbstractCegarLoop]: === Iteration 10 === [cbzeroErr1REQUIRES_VIOLATION, cbzeroErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-02 08:30:59,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:30:59,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1226710122, now seen corresponding path program 2 times [2018-12-02 08:30:59,915 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:30:59,915 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:30:59,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:59,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:30:59,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:30:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:31:00,096 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:31:00,096 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:31:00,096 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d4cc541-6a7d-4013-a7ac-94386ca0f463/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 [2018-12-02 08:31:00,102 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-02 08:31:00,113 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-02 08:31:00,114 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 08:31:00,115 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:31:00,119 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-02 08:31:00,119 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 08:31:00,125 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 08:31:00,126 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:12 [2018-12-02 08:31:00,326 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:31:00,341 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 08:31:00,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 23 [2018-12-02 08:31:00,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-12-02 08:31:00,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-12-02 08:31:00,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2018-12-02 08:31:00,342 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 24 states. [2018-12-02 08:31:00,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:31:00,750 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-12-02 08:31:00,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-02 08:31:00,750 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 22 [2018-12-02 08:31:00,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:31:00,750 INFO L225 Difference]: With dead ends: 27 [2018-12-02 08:31:00,750 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 08:31:00,751 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=150, Invalid=1110, Unknown=0, NotChecked=0, Total=1260 [2018-12-02 08:31:00,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 08:31:00,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 08:31:00,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 08:31:00,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 08:31:00,751 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-12-02 08:31:00,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:31:00,751 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 08:31:00,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-12-02 08:31:00,751 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 08:31:00,752 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 08:31:00,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:31:00 BoogieIcfgContainer [2018-12-02 08:31:00,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 08:31:00,755 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 08:31:00,755 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 08:31:00,755 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 08:31:00,755 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:30:58" (3/4) ... [2018-12-02 08:31:00,757 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 08:31:00,761 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 08:31:00,761 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2018-12-02 08:31:00,761 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2018-12-02 08:31:00,761 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cbzero [2018-12-02 08:31:00,761 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 08:31:00,764 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-12-02 08:31:00,764 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-02 08:31:00,764 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 08:31:00,787 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6d4cc541-6a7d-4013-a7ac-94386ca0f463/bin-2019/uautomizer/witness.graphml [2018-12-02 08:31:00,788 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 08:31:00,788 INFO L168 Benchmark]: Toolchain (without parser) took 2868.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.9 MB). Free memory was 954.9 MB in the beginning and 1.0 GB in the end (delta: -47.3 MB). Peak memory consumption was 156.7 MB. Max. memory is 11.5 GB. [2018-12-02 08:31:00,789 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:31:00,789 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -150.2 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-02 08:31:00,789 INFO L168 Benchmark]: Boogie Preprocessor took 34.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-02 08:31:00,790 INFO L168 Benchmark]: RCFGBuilder took 241.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. [2018-12-02 08:31:00,790 INFO L168 Benchmark]: TraceAbstraction took 2304.45 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 83.4 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.6 MB). Peak memory consumption was 136.9 MB. Max. memory is 11.5 GB. [2018-12-02 08:31:00,790 INFO L168 Benchmark]: Witness Printer took 33.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 11.5 GB. [2018-12-02 08:31:00,791 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 252.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -150.2 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 241.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2304.45 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 83.4 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.6 MB). Peak memory consumption was 136.9 MB. Max. memory is 11.5 GB. * Witness Printer took 33.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 31 locations, 3 error locations. SAFE Result, 2.2s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 174 SDtfs, 126 SDslu, 630 SDs, 0 SdLazy, 465 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=5, 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, 10 MinimizatonAttempts, 12 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 234 NumberOfCodeBlocks, 234 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 220 ConstructedInterpolants, 2 QuantifiedInterpolants, 24381 SizeOfPredicates, 30 NumberOfNonLiveVariables, 425 ConjunctsInSsa, 122 ConjunctsInUnsatCore, 14 InterpolantComputations, 6 PerfectInterpolantSequences, 4/38 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...