./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 10bdb405bd6bca2bddb8b686c44dad291e109402 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:32:15,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:32:15,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:32:15,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:32:15,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:32:15,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:32:15,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:32:15,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:32:15,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:32:15,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:32:15,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:32:15,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:32:15,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:32:15,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:32:15,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:32:15,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:32:15,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:32:15,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:32:15,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:32:15,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:32:15,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:32:15,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:32:15,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:32:15,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:32:15,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:32:15,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:32:15,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:32:15,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:32:15,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:32:15,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:32:15,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:32:15,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:32:15,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:32:15,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:32:15,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:32:15,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:32:15,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:32:15,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:32:15,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:32:15,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:32:15,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:32:15,242 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 02:32:15,259 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:32:15,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:32:15,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:32:15,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:32:15,262 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:32:15,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:32:15,263 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:32:15,263 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:32:15,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:32:15,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:32:15,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:32:15,264 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:32:15,264 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:32:15,264 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 02:32:15,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:32:15,265 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:32:15,265 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:32:15,266 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:32:15,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:32:15,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:32:15,266 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:32:15,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:32:15,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:32:15,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:32:15,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:32:15,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:32:15,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:32:15,268 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 10bdb405bd6bca2bddb8b686c44dad291e109402 [2019-11-28 02:32:15,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:32:15,599 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:32:15,602 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:32:15,604 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:32:15,604 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:32:15,605 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2019-11-28 02:32:15,676 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e67d2f929/4f3f5cd89d8c4ca3802ed293327f4b4b/FLAG3652a96cd [2019-11-28 02:32:16,216 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:32:16,216 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2019-11-28 02:32:16,234 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e67d2f929/4f3f5cd89d8c4ca3802ed293327f4b4b/FLAG3652a96cd [2019-11-28 02:32:16,485 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e67d2f929/4f3f5cd89d8c4ca3802ed293327f4b4b [2019-11-28 02:32:16,489 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:32:16,491 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:32:16,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:32:16,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:32:16,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:32:16,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:32:16" (1/1) ... [2019-11-28 02:32:16,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbd7332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:32:16, skipping insertion in model container [2019-11-28 02:32:16,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:32:16" (1/1) ... [2019-11-28 02:32:16,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:32:16,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:32:16,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:32:16,975 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:32:17,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:32:17,099 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:32:17,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:32:17 WrapperNode [2019-11-28 02:32:17,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:32:17,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:32:17,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:32:17,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:32:17,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:32:17" (1/1) ... [2019-11-28 02:32:17,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:32:17" (1/1) ... [2019-11-28 02:32:17,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:32:17" (1/1) ... [2019-11-28 02:32:17,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:32:17" (1/1) ... [2019-11-28 02:32:17,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:32:17" (1/1) ... [2019-11-28 02:32:17,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:32:17" (1/1) ... [2019-11-28 02:32:17,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:32:17" (1/1) ... [2019-11-28 02:32:17,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:32:17,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:32:17,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:32:17,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:32:17,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:32:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 02:32:17,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 02:32:17,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:32:17,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 02:32:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 02:32:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 02:32:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 02:32:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 02:32:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure cmemset [2019-11-28 02:32:17,253 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 02:32:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 02:32:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 02:32:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 02:32:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 02:32:17,254 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 02:32:17,254 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 02:32:17,254 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 02:32:17,254 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 02:32:17,254 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 02:32:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 02:32:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 02:32:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 02:32:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 02:32:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 02:32:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 02:32:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 02:32:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 02:32:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 02:32:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 02:32:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 02:32:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 02:32:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 02:32:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 02:32:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 02:32:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 02:32:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 02:32:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 02:32:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 02:32:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 02:32:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 02:32:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 02:32:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 02:32:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 02:32:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 02:32:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 02:32:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 02:32:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 02:32:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 02:32:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 02:32:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 02:32:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 02:32:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 02:32:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 02:32:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 02:32:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 02:32:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 02:32:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 02:32:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 02:32:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 02:32:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 02:32:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 02:32:17,264 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 02:32:17,264 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 02:32:17,265 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 02:32:17,265 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 02:32:17,265 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 02:32:17,265 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 02:32:17,265 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 02:32:17,266 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 02:32:17,266 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 02:32:17,267 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 02:32:17,267 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 02:32:17,267 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 02:32:17,267 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 02:32:17,268 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 02:32:17,269 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 02:32:17,269 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 02:32:17,269 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 02:32:17,270 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 02:32:17,270 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 02:32:17,270 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 02:32:17,270 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 02:32:17,271 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 02:32:17,271 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 02:32:17,271 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 02:32:17,271 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 02:32:17,271 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 02:32:17,271 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 02:32:17,272 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 02:32:17,272 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 02:32:17,272 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 02:32:17,272 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 02:32:17,272 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 02:32:17,273 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 02:32:17,273 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 02:32:17,273 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 02:32:17,273 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 02:32:17,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 02:32:17,273 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 02:32:17,273 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 02:32:17,273 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 02:32:17,273 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 02:32:17,274 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 02:32:17,274 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 02:32:17,274 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 02:32:17,274 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 02:32:17,274 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 02:32:17,274 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 02:32:17,274 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 02:32:17,275 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 02:32:17,275 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 02:32:17,275 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 02:32:17,275 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 02:32:17,275 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 02:32:17,275 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 02:32:17,275 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 02:32:17,275 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 02:32:17,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 02:32:17,276 INFO L130 BoogieDeclarations]: Found specification of procedure cmemset [2019-11-28 02:32:17,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 02:32:17,276 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 02:32:17,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 02:32:17,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 02:32:17,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 02:32:17,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:32:17,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 02:32:17,738 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:32:17,739 INFO L297 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-28 02:32:17,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:32:17 BoogieIcfgContainer [2019-11-28 02:32:17,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:32:17,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:32:17,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:32:17,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:32:17,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:32:16" (1/3) ... [2019-11-28 02:32:17,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1b6041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:32:17, skipping insertion in model container [2019-11-28 02:32:17,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:32:17" (2/3) ... [2019-11-28 02:32:17,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1b6041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:32:17, skipping insertion in model container [2019-11-28 02:32:17,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:32:17" (3/3) ... [2019-11-28 02:32:17,750 INFO L109 eAbstractionObserver]: Analyzing ICFG openbsd_cmemset-alloca-1.i [2019-11-28 02:32:17,761 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:32:17,769 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-28 02:32:17,783 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-28 02:32:17,803 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:32:17,804 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 02:32:17,804 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:32:17,804 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:32:17,804 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:32:17,804 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:32:17,805 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:32:17,805 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:32:17,817 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-28 02:32:17,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 02:32:17,827 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:32:17,828 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:32:17,829 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-11-28 02:32:17,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:32:17,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1505405860, now seen corresponding path program 1 times [2019-11-28 02:32:17,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:32:17,846 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196906168] [2019-11-28 02:32:17,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:32:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:18,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:32:18,192 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196906168] [2019-11-28 02:32:18,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:32:18,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-28 02:32:18,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908148416] [2019-11-28 02:32:18,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-28 02:32:18,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:32:18,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-28 02:32:18,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-11-28 02:32:18,223 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 9 states. [2019-11-28 02:32:18,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:32:18,591 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2019-11-28 02:32:18,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-28 02:32:18,594 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2019-11-28 02:32:18,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:32:18,604 INFO L225 Difference]: With dead ends: 32 [2019-11-28 02:32:18,605 INFO L226 Difference]: Without dead ends: 29 [2019-11-28 02:32:18,607 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2019-11-28 02:32:18,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-28 02:32:18,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2019-11-28 02:32:18,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-28 02:32:18,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2019-11-28 02:32:18,649 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 14 [2019-11-28 02:32:18,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:32:18,650 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2019-11-28 02:32:18,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-28 02:32:18,650 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2019-11-28 02:32:18,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 02:32:18,651 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:32:18,651 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:32:18,652 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-11-28 02:32:18,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:32:18,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1505405861, now seen corresponding path program 1 times [2019-11-28 02:32:18,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:32:18,653 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121275699] [2019-11-28 02:32:18,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:32:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:32:18,795 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121275699] [2019-11-28 02:32:18,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:32:18,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 02:32:18,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796795741] [2019-11-28 02:32:18,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 02:32:18,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:32:18,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 02:32:18,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:32:18,802 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 8 states. [2019-11-28 02:32:18,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:32:18,992 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-11-28 02:32:18,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 02:32:18,993 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-11-28 02:32:18,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:32:18,996 INFO L225 Difference]: With dead ends: 29 [2019-11-28 02:32:18,997 INFO L226 Difference]: Without dead ends: 29 [2019-11-28 02:32:18,998 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-28 02:32:18,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-28 02:32:19,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2019-11-28 02:32:19,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-28 02:32:19,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2019-11-28 02:32:19,005 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 14 [2019-11-28 02:32:19,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:32:19,005 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2019-11-28 02:32:19,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 02:32:19,006 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2019-11-28 02:32:19,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 02:32:19,007 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:32:19,007 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:32:19,008 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-11-28 02:32:19,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:32:19,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1092272849, now seen corresponding path program 1 times [2019-11-28 02:32:19,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:32:19,009 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462619923] [2019-11-28 02:32:19,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:32:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:19,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:32:19,157 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462619923] [2019-11-28 02:32:19,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:32:19,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 02:32:19,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860846869] [2019-11-28 02:32:19,160 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 02:32:19,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:32:19,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 02:32:19,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 02:32:19,162 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 7 states. [2019-11-28 02:32:19,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:32:19,398 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2019-11-28 02:32:19,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-28 02:32:19,398 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-11-28 02:32:19,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:32:19,400 INFO L225 Difference]: With dead ends: 39 [2019-11-28 02:32:19,400 INFO L226 Difference]: Without dead ends: 39 [2019-11-28 02:32:19,401 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2019-11-28 02:32:19,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-28 02:32:19,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2019-11-28 02:32:19,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-28 02:32:19,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2019-11-28 02:32:19,411 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 17 [2019-11-28 02:32:19,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:32:19,412 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2019-11-28 02:32:19,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 02:32:19,412 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2019-11-28 02:32:19,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 02:32:19,413 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:32:19,413 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:32:19,414 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-11-28 02:32:19,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:32:19,414 INFO L82 PathProgramCache]: Analyzing trace with hash 699245839, now seen corresponding path program 1 times [2019-11-28 02:32:19,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:32:19,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760069689] [2019-11-28 02:32:19,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:32:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:19,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:32:19,561 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760069689] [2019-11-28 02:32:19,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:32:19,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-28 02:32:19,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590996896] [2019-11-28 02:32:19,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 02:32:19,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:32:19,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 02:32:19,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:32:19,565 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 8 states. [2019-11-28 02:32:19,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:32:19,788 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2019-11-28 02:32:19,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-28 02:32:19,789 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-11-28 02:32:19,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:32:19,790 INFO L225 Difference]: With dead ends: 33 [2019-11-28 02:32:19,790 INFO L226 Difference]: Without dead ends: 30 [2019-11-28 02:32:19,791 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2019-11-28 02:32:19,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-28 02:32:19,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2019-11-28 02:32:19,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-28 02:32:19,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2019-11-28 02:32:19,796 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 17 [2019-11-28 02:32:19,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:32:19,797 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2019-11-28 02:32:19,797 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 02:32:19,797 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2019-11-28 02:32:19,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 02:32:19,798 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:32:19,798 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:32:19,799 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-11-28 02:32:19,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:32:19,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1853612607, now seen corresponding path program 1 times [2019-11-28 02:32:19,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:32:19,800 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098623856] [2019-11-28 02:32:19,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:32:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:19,927 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:32:19,928 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098623856] [2019-11-28 02:32:19,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:32:19,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 02:32:19,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92678343] [2019-11-28 02:32:19,930 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 02:32:19,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:32:19,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 02:32:19,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 02:32:19,931 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 7 states. [2019-11-28 02:32:20,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:32:20,109 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2019-11-28 02:32:20,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 02:32:20,112 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-11-28 02:32:20,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:32:20,113 INFO L225 Difference]: With dead ends: 41 [2019-11-28 02:32:20,115 INFO L226 Difference]: Without dead ends: 41 [2019-11-28 02:32:20,116 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-11-28 02:32:20,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-28 02:32:20,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2019-11-28 02:32:20,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-28 02:32:20,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2019-11-28 02:32:20,126 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 19 [2019-11-28 02:32:20,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:32:20,127 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2019-11-28 02:32:20,127 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 02:32:20,127 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2019-11-28 02:32:20,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 02:32:20,129 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:32:20,129 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:32:20,129 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-11-28 02:32:20,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:32:20,130 INFO L82 PathProgramCache]: Analyzing trace with hash 2111778045, now seen corresponding path program 1 times [2019-11-28 02:32:20,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:32:20,131 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156522011] [2019-11-28 02:32:20,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:32:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:20,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:32:20,447 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156522011] [2019-11-28 02:32:20,447 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118263576] [2019-11-28 02:32:20,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:32:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:20,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 41 conjunts are in the unsatisfiable core [2019-11-28 02:32:20,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:32:20,719 INFO L377 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 [2019-11-28 02:32:20,720 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:32:20,729 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:32:20,730 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:32:20,730 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 02:32:21,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:32:21,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 02:32:21,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 21 [2019-11-28 02:32:21,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373576008] [2019-11-28 02:32:21,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-28 02:32:21,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:32:21,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-28 02:32:21,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=414, Unknown=0, NotChecked=0, Total=462 [2019-11-28 02:32:21,006 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 22 states. [2019-11-28 02:32:21,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:32:21,759 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2019-11-28 02:32:21,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-28 02:32:21,759 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 19 [2019-11-28 02:32:21,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:32:21,760 INFO L225 Difference]: With dead ends: 44 [2019-11-28 02:32:21,760 INFO L226 Difference]: Without dead ends: 44 [2019-11-28 02:32:21,762 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=125, Invalid=805, Unknown=0, NotChecked=0, Total=930 [2019-11-28 02:32:21,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-28 02:32:21,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2019-11-28 02:32:21,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-28 02:32:21,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2019-11-28 02:32:21,768 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 19 [2019-11-28 02:32:21,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:32:21,768 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2019-11-28 02:32:21,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-28 02:32:21,769 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2019-11-28 02:32:21,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 02:32:21,770 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:32:21,770 INFO L410 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] [2019-11-28 02:32:21,982 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:32:21,983 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-11-28 02:32:21,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:32:21,984 INFO L82 PathProgramCache]: Analyzing trace with hash 538552420, now seen corresponding path program 1 times [2019-11-28 02:32:21,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:32:21,985 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572573015] [2019-11-28 02:32:21,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:32:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:22,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:32:22,089 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572573015] [2019-11-28 02:32:22,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:32:22,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 02:32:22,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311998320] [2019-11-28 02:32:22,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:32:22,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:32:22,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:32:22,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:32:22,091 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 6 states. [2019-11-28 02:32:22,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:32:22,169 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2019-11-28 02:32:22,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 02:32:22,170 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-11-28 02:32:22,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:32:22,170 INFO L225 Difference]: With dead ends: 42 [2019-11-28 02:32:22,170 INFO L226 Difference]: Without dead ends: 25 [2019-11-28 02:32:22,171 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:32:22,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-28 02:32:22,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-28 02:32:22,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-28 02:32:22,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-11-28 02:32:22,175 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 22 [2019-11-28 02:32:22,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:32:22,175 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-11-28 02:32:22,176 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:32:22,177 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-11-28 02:32:22,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-28 02:32:22,178 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:32:22,178 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:32:22,178 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-11-28 02:32:22,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:32:22,179 INFO L82 PathProgramCache]: Analyzing trace with hash 402998846, now seen corresponding path program 2 times [2019-11-28 02:32:22,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:32:22,179 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403393489] [2019-11-28 02:32:22,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:32:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:22,581 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:32:22,582 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403393489] [2019-11-28 02:32:22,582 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976306366] [2019-11-28 02:32:22,582 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:32:22,688 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-28 02:32:22,688 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 02:32:22,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 51 conjunts are in the unsatisfiable core [2019-11-28 02:32:22,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:32:22,706 INFO L377 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 [2019-11-28 02:32:22,707 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:32:22,714 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:32:22,715 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:32:22,715 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 02:32:23,038 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:32:23,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 02:32:23,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 23 [2019-11-28 02:32:23,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513777658] [2019-11-28 02:32:23,040 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-28 02:32:23,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:32:23,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-28 02:32:23,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2019-11-28 02:32:23,041 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 24 states. [2019-11-28 02:32:24,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:32:24,557 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2019-11-28 02:32:24,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-28 02:32:24,557 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 24 [2019-11-28 02:32:24,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:32:24,559 INFO L225 Difference]: With dead ends: 36 [2019-11-28 02:32:24,559 INFO L226 Difference]: Without dead ends: 36 [2019-11-28 02:32:24,561 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=194, Invalid=1446, Unknown=0, NotChecked=0, Total=1640 [2019-11-28 02:32:24,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-28 02:32:24,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2019-11-28 02:32:24,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-28 02:32:24,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2019-11-28 02:32:24,565 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 24 [2019-11-28 02:32:24,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:32:24,566 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2019-11-28 02:32:24,566 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-28 02:32:24,566 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2019-11-28 02:32:24,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-28 02:32:24,567 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:32:24,567 INFO L410 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:32:24,770 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:32:24,771 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-11-28 02:32:24,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:32:24,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1008858722, now seen corresponding path program 3 times [2019-11-28 02:32:24,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:32:24,772 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933130806] [2019-11-28 02:32:24,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:32:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:32:25,250 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:32:25,251 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933130806] [2019-11-28 02:32:25,251 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412888013] [2019-11-28 02:32:25,251 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:32:25,371 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-11-28 02:32:25,371 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 02:32:25,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 71 conjunts are in the unsatisfiable core [2019-11-28 02:32:25,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:32:25,385 INFO L377 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 [2019-11-28 02:32:25,386 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:32:25,399 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:32:25,400 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:32:25,400 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 02:32:25,829 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:32:25,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 02:32:25,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 29 [2019-11-28 02:32:25,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936459134] [2019-11-28 02:32:25,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-11-28 02:32:25,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:32:25,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-11-28 02:32:25,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=783, Unknown=0, NotChecked=0, Total=870 [2019-11-28 02:32:25,836 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 30 states. [2019-11-28 02:32:27,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:32:27,243 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2019-11-28 02:32:27,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-28 02:32:27,244 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 34 [2019-11-28 02:32:27,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:32:27,245 INFO L225 Difference]: With dead ends: 40 [2019-11-28 02:32:27,245 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 02:32:27,247 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=279, Invalid=2171, Unknown=0, NotChecked=0, Total=2450 [2019-11-28 02:32:27,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 02:32:27,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 02:32:27,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 02:32:27,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 02:32:27,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-11-28 02:32:27,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:32:27,250 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:32:27,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-11-28 02:32:27,251 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 02:32:27,251 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 02:32:27,452 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:32:27,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:32:27 BoogieIcfgContainer [2019-11-28 02:32:27,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:32:27,460 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:32:27,460 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:32:27,460 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:32:27,461 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:32:17" (3/4) ... [2019-11-28 02:32:27,464 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 02:32:27,472 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-28 02:32:27,472 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-11-28 02:32:27,473 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-11-28 02:32:27,473 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2019-11-28 02:32:27,473 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2019-11-28 02:32:27,474 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-28 02:32:27,474 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cmemset [2019-11-28 02:32:27,474 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2019-11-28 02:32:27,478 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-28 02:32:27,479 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-28 02:32:27,479 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 02:32:27,479 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 02:32:27,533 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:32:27,534 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:32:27,536 INFO L168 Benchmark]: Toolchain (without parser) took 11044.81 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 318.8 MB). Free memory was 955.0 MB in the beginning and 861.6 MB in the end (delta: 93.4 MB). Peak memory consumption was 412.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:32:27,538 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:32:27,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 608.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -161.7 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-11-28 02:32:27,540 INFO L168 Benchmark]: Boogie Preprocessor took 98.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-28 02:32:27,541 INFO L168 Benchmark]: RCFGBuilder took 540.15 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: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:32:27,542 INFO L168 Benchmark]: TraceAbstraction took 9717.79 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 182.5 MB). Free memory was 1.1 GB in the beginning and 870.9 MB in the end (delta: 194.4 MB). Peak memory consumption was 376.9 MB. Max. memory is 11.5 GB. [2019-11-28 02:32:27,546 INFO L168 Benchmark]: Witness Printer took 74.34 ms. Allocated memory is still 1.3 GB. Free memory was 870.9 MB in the beginning and 861.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 11.5 GB. [2019-11-28 02:32:27,550 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 608.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -161.7 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 98.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 540.15 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: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9717.79 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 182.5 MB). Free memory was 1.1 GB in the beginning and 870.9 MB in the end (delta: 194.4 MB). Peak memory consumption was 376.9 MB. Max. memory is 11.5 GB. * Witness Printer took 74.34 ms. Allocated memory is still 1.3 GB. Free memory was 870.9 MB in the beginning and 861.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 523]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 43 locations, 3 error locations. Result: SAFE, OverallTime: 9.6s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 165 SDtfs, 417 SDslu, 357 SDs, 0 SdLazy, 1594 SolverSat, 152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 22 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 245 ConstructedInterpolants, 4 QuantifiedInterpolants, 56942 SizeOfPredicates, 35 NumberOfNonLiveVariables, 397 ConjunctsInSsa, 163 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 15/100 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...