./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/add_last_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c 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/add_last_unsafe.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 6dcea98e309b9ccb2c2dc4a4f9353c6c61175172 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:03:58,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:03:58,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:03:58,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:03:58,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:03:58,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:03:58,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:03:58,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:03:58,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:03:58,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:03:58,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:03:58,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:03:58,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:03:58,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:03:58,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:03:58,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:03:58,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:03:58,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:03:58,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:03:58,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:03:58,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:03:58,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:03:58,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:03:58,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:03:58,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:03:58,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:03:58,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:03:58,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:03:58,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:03:58,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:03:58,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:03:58,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:03:58,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:03:58,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:03:58,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:03:58,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:03:58,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:03:58,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:03:58,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:03:58,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:03:58,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:03:58,204 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 20:03:58,222 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:03:58,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:03:58,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:03:58,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:03:58,225 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:03:58,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:03:58,226 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:03:58,226 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:03:58,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:03:58,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:03:58,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:03:58,227 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:03:58,227 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:03:58,228 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 20:03:58,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:03:58,228 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:03:58,229 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:03:58,229 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:03:58,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:03:58,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:03:58,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:03:58,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:03:58,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:03:58,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:03:58,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:03:58,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:03:58,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:03:58,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:03:58,232 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 -> 6dcea98e309b9ccb2c2dc4a4f9353c6c61175172 [2019-11-28 20:03:58,564 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:03:58,577 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:03:58,581 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:03:58,582 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:03:58,583 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:03:58,583 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/add_last_unsafe.i [2019-11-28 20:03:58,659 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaea4bace/8c6d058642c141a3b4a6e5e82c60f063/FLAG8bbaa74b6 [2019-11-28 20:03:59,189 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:03:59,190 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/add_last_unsafe.i [2019-11-28 20:03:59,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaea4bace/8c6d058642c141a3b4a6e5e82c60f063/FLAG8bbaa74b6 [2019-11-28 20:03:59,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaea4bace/8c6d058642c141a3b4a6e5e82c60f063 [2019-11-28 20:03:59,492 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:03:59,494 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:03:59,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:03:59,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:03:59,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:03:59,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:03:59" (1/1) ... [2019-11-28 20:03:59,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2418dfa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:03:59, skipping insertion in model container [2019-11-28 20:03:59,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:03:59" (1/1) ... [2019-11-28 20:03:59,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:03:59,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:04:00,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:04:00,026 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:04:00,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:04:00,129 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:04:00,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:04:00 WrapperNode [2019-11-28 20:04:00,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:04:00,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:04:00,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:04:00,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:04:00,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:04:00" (1/1) ... [2019-11-28 20:04:00,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:04:00" (1/1) ... [2019-11-28 20:04:00,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:04:00" (1/1) ... [2019-11-28 20:04:00,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:04:00" (1/1) ... [2019-11-28 20:04:00,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:04:00" (1/1) ... [2019-11-28 20:04:00,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:04:00" (1/1) ... [2019-11-28 20:04:00,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:04:00" (1/1) ... [2019-11-28 20:04:00,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:04:00,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:04:00,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:04:00,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:04:00,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:04:00" (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 20:04:00,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:04:00,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:04:00,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 20:04:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 20:04:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 20:04:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 20:04:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 20:04:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:04:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 20:04:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 20:04:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 20:04:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 20:04:00,259 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 20:04:00,259 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 20:04:00,259 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 20:04:00,259 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 20:04:00,260 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 20:04:00,260 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 20:04:00,260 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 20:04:00,260 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 20:04:00,260 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 20:04:00,261 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 20:04:00,261 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 20:04:00,261 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 20:04:00,261 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 20:04:00,261 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 20:04:00,262 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 20:04:00,262 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 20:04:00,262 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 20:04:00,262 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 20:04:00,263 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 20:04:00,263 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 20:04:00,263 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 20:04:00,263 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 20:04:00,264 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 20:04:00,264 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 20:04:00,264 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 20:04:00,264 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 20:04:00,265 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 20:04:00,265 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 20:04:00,265 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 20:04:00,265 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 20:04:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 20:04:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 20:04:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 20:04:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 20:04:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 20:04:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 20:04:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 20:04:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 20:04:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 20:04:00,268 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 20:04:00,268 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 20:04:00,268 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 20:04:00,269 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 20:04:00,269 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 20:04:00,269 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 20:04:00,269 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 20:04:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 20:04:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 20:04:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 20:04:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 20:04:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 20:04:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 20:04:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 20:04:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 20:04:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 20:04:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 20:04:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 20:04:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 20:04:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 20:04:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 20:04:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 20:04:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 20:04:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 20:04:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 20:04:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 20:04:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 20:04:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 20:04:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 20:04:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 20:04:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 20:04:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 20:04:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 20:04:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 20:04:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 20:04:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 20:04:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 20:04:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 20:04:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 20:04:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 20:04:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 20:04:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 20:04:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 20:04:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 20:04:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 20:04:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 20:04:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 20:04:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 20:04:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 20:04:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 20:04:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 20:04:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 20:04:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 20:04:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 20:04:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 20:04:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 20:04:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 20:04:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 20:04:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 20:04:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 20:04:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 20:04:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 20:04:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 20:04:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 20:04:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 20:04:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:04:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:04:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:04:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:04:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:04:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:04:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:04:00,813 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:04:00,814 INFO L287 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-28 20:04:00,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:04:00 BoogieIcfgContainer [2019-11-28 20:04:00,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:04:00,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:04:00,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:04:00,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:04:00,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:03:59" (1/3) ... [2019-11-28 20:04:00,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178a2155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:04:00, skipping insertion in model container [2019-11-28 20:04:00,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:04:00" (2/3) ... [2019-11-28 20:04:00,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178a2155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:04:00, skipping insertion in model container [2019-11-28 20:04:00,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:04:00" (3/3) ... [2019-11-28 20:04:00,825 INFO L109 eAbstractionObserver]: Analyzing ICFG add_last_unsafe.i [2019-11-28 20:04:00,835 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:04:00,843 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2019-11-28 20:04:00,856 INFO L249 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2019-11-28 20:04:00,878 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:04:00,879 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:04:00,879 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:04:00,879 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:04:00,879 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:04:00,880 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:04:00,880 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:04:00,880 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:04:00,897 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-11-28 20:04:00,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 20:04:00,908 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:04:00,909 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:04:00,910 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:04:00,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:04:00,916 INFO L82 PathProgramCache]: Analyzing trace with hash -2072257551, now seen corresponding path program 1 times [2019-11-28 20:04:00,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:04:00,927 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797614291] [2019-11-28 20:04:00,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:04:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:04:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:04:01,147 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 20:04:01,148 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797614291] [2019-11-28 20:04:01,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:04:01,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 20:04:01,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943896418] [2019-11-28 20:04:01,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:04:01,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:04:01,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:04:01,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:04:01,175 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 4 states. [2019-11-28 20:04:01,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:04:01,322 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2019-11-28 20:04:01,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:04:01,324 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-28 20:04:01,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:04:01,336 INFO L225 Difference]: With dead ends: 38 [2019-11-28 20:04:01,336 INFO L226 Difference]: Without dead ends: 35 [2019-11-28 20:04:01,340 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:04:01,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-28 20:04:01,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-28 20:04:01,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-28 20:04:01,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2019-11-28 20:04:01,385 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 10 [2019-11-28 20:04:01,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:04:01,385 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2019-11-28 20:04:01,385 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:04:01,385 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-11-28 20:04:01,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 20:04:01,386 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:04:01,386 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:04:01,386 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:04:01,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:04:01,387 INFO L82 PathProgramCache]: Analyzing trace with hash 184525090, now seen corresponding path program 1 times [2019-11-28 20:04:01,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:04:01,387 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838580586] [2019-11-28 20:04:01,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:04:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:04:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:04:01,471 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 20:04:01,472 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838580586] [2019-11-28 20:04:01,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:04:01,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 20:04:01,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250828859] [2019-11-28 20:04:01,474 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:04:01,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:04:01,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:04:01,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:04:01,475 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 5 states. [2019-11-28 20:04:01,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:04:01,634 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2019-11-28 20:04:01,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:04:01,635 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-28 20:04:01,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:04:01,638 INFO L225 Difference]: With dead ends: 29 [2019-11-28 20:04:01,638 INFO L226 Difference]: Without dead ends: 29 [2019-11-28 20:04:01,639 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:04:01,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-28 20:04:01,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-28 20:04:01,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-28 20:04:01,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2019-11-28 20:04:01,647 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 11 [2019-11-28 20:04:01,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:04:01,647 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2019-11-28 20:04:01,648 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:04:01,648 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-11-28 20:04:01,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 20:04:01,650 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:04:01,650 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:04:01,650 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:04:01,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:04:01,651 INFO L82 PathProgramCache]: Analyzing trace with hash 184525091, now seen corresponding path program 1 times [2019-11-28 20:04:01,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:04:01,652 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452239636] [2019-11-28 20:04:01,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:04:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:04:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:04:01,772 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 20:04:01,775 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452239636] [2019-11-28 20:04:01,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:04:01,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:04:01,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9894480] [2019-11-28 20:04:01,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:04:01,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:04:01,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:04:01,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:04:01,778 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 5 states. [2019-11-28 20:04:01,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:04:01,879 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2019-11-28 20:04:01,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:04:01,879 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-28 20:04:01,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:04:01,881 INFO L225 Difference]: With dead ends: 34 [2019-11-28 20:04:01,881 INFO L226 Difference]: Without dead ends: 34 [2019-11-28 20:04:01,881 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:04:01,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-28 20:04:01,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2019-11-28 20:04:01,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-28 20:04:01,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2019-11-28 20:04:01,886 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 11 [2019-11-28 20:04:01,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:04:01,887 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2019-11-28 20:04:01,887 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:04:01,887 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2019-11-28 20:04:01,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 20:04:01,888 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:04:01,888 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:04:01,888 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:04:01,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:04:01,888 INFO L82 PathProgramCache]: Analyzing trace with hash 184525141, now seen corresponding path program 1 times [2019-11-28 20:04:01,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:04:01,889 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850846820] [2019-11-28 20:04:01,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:04:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:04:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:04:01,958 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:04:01,959 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:04:01,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:04:01 BoogieIcfgContainer [2019-11-28 20:04:01,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:04:01,981 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:04:01,981 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:04:01,982 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:04:01,982 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:04:00" (3/4) ... [2019-11-28 20:04:01,984 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 20:04:02,025 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:04:02,025 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:04:02,027 INFO L168 Benchmark]: Toolchain (without parser) took 2533.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 960.4 MB in the beginning and 997.7 MB in the end (delta: -37.3 MB). Peak memory consumption was 105.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:04:02,028 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:04:02,029 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:04:02,030 INFO L168 Benchmark]: Boogie Preprocessor took 66.32 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: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:04:02,031 INFO L168 Benchmark]: RCFGBuilder took 617.30 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: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:04:02,031 INFO L168 Benchmark]: TraceAbstraction took 1164.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.7 MB in the end (delta: 73.8 MB). Peak memory consumption was 73.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:04:02,032 INFO L168 Benchmark]: Witness Printer took 44.06 ms. Allocated memory is still 1.2 GB. Free memory is still 997.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:04:02,036 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 635.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.32 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: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 617.30 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: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1164.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.7 MB in the end (delta: 73.8 MB). Peak memory consumption was 73.8 MB. Max. memory is 11.5 GB. * Witness Printer took 44.06 ms. Allocated memory is still 1.2 GB. Free memory is still 997.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 522]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L513] int i, j; [L514] int length = __VERIFIER_nondet_int(); [L515] COND TRUE length < 1 [L515] length = 1 VAL [length=1] [L516] int *arr = __builtin_alloca (length); VAL [__builtin_alloca (length)={2:0}, arr={2:0}, length=1] [L517] COND FALSE !(!arr) [L518] int *a = arr; [L520] int k = 0; VAL [__builtin_alloca (length)={2:0}, a={2:0}, arr={2:0}, k=0, length=1] [L520] COND TRUE k < length [L522] arr[k] = __VERIFIER_nondet_int() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 53 locations, 13 error locations. Result: UNSAFE, OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 104 SDslu, 37 SDs, 0 SdLazy, 150 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 789 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 incorrect! Received shutdown request...