./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_84d6a36b-632a-405e-909c-862474ce9aef/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_84d6a36b-632a-405e-909c-862474ce9aef/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_84d6a36b-632a-405e-909c-862474ce9aef/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_84d6a36b-632a-405e-909c-862474ce9aef/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/add_last_unsafe.i -s /tmp/vcloud-vcloud-master/worker/run_dir_84d6a36b-632a-405e-909c-862474ce9aef/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_84d6a36b-632a-405e-909c-862474ce9aef/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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 0.1.24-cad4683 [2019-11-16 00:33:14,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:33:14,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:33:14,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:33:14,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:33:14,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:33:14,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:33:14,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:33:14,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:33:14,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:33:14,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:33:14,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:33:14,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:33:14,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:33:14,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:33:14,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:33:14,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:33:14,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:33:14,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:33:14,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:33:14,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:33:14,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:33:14,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:33:14,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:33:14,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:33:14,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:33:14,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:33:14,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:33:14,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:33:14,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:33:14,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:33:14,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:33:14,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:33:14,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:33:14,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:33:14,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:33:14,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:33:14,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:33:14,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:33:14,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:33:14,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:33:14,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_84d6a36b-632a-405e-909c-862474ce9aef/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-16 00:33:14,299 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:33:14,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:33:14,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:33:14,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:33:14,301 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:33:14,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:33:14,301 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:33:14,302 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-16 00:33:14,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:33:14,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:33:14,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:33:14,302 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-16 00:33:14,303 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-16 00:33:14,303 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-16 00:33:14,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:33:14,303 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:33:14,303 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:33:14,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:33:14,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:33:14,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:33:14,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:33:14,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:33:14,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:33:14,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:33:14,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:33:14,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:33:14,305 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_84d6a36b-632a-405e-909c-862474ce9aef/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dcea98e309b9ccb2c2dc4a4f9353c6c61175172 [2019-11-16 00:33:14,352 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:33:14,365 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:33:14,369 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:33:14,370 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:33:14,371 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:33:14,371 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_84d6a36b-632a-405e-909c-862474ce9aef/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/add_last_unsafe.i [2019-11-16 00:33:14,431 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_84d6a36b-632a-405e-909c-862474ce9aef/bin/uautomizer/data/15bb9e935/0604ddb949f549e69616c696ae4d621e/FLAGd3863527d [2019-11-16 00:33:14,873 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:33:14,874 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_84d6a36b-632a-405e-909c-862474ce9aef/sv-benchmarks/c/array-memsafety/add_last_unsafe.i [2019-11-16 00:33:14,888 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_84d6a36b-632a-405e-909c-862474ce9aef/bin/uautomizer/data/15bb9e935/0604ddb949f549e69616c696ae4d621e/FLAGd3863527d [2019-11-16 00:33:15,281 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_84d6a36b-632a-405e-909c-862474ce9aef/bin/uautomizer/data/15bb9e935/0604ddb949f549e69616c696ae4d621e [2019-11-16 00:33:15,284 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:33:15,285 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-16 00:33:15,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:33:15,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:33:15,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:33:15,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:33:15" (1/1) ... [2019-11-16 00:33:15,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3db29549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:15, skipping insertion in model container [2019-11-16 00:33:15,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:33:15" (1/1) ... [2019-11-16 00:33:15,301 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:33:15,344 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:33:15,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:33:15,696 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:33:15,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:33:15,787 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:33:15,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:15 WrapperNode [2019-11-16 00:33:15,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:33:15,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:33:15,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:33:15,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:33:15,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:15" (1/1) ... [2019-11-16 00:33:15,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:15" (1/1) ... [2019-11-16 00:33:15,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:15" (1/1) ... [2019-11-16 00:33:15,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:15" (1/1) ... [2019-11-16 00:33:15,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:15" (1/1) ... [2019-11-16 00:33:15,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:15" (1/1) ... [2019-11-16 00:33:15,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:15" (1/1) ... [2019-11-16 00:33:15,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:33:15,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:33:15,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:33:15,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:33:15,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84d6a36b-632a-405e-909c-862474ce9aef/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:33:15,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-16 00:33:15,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:33:15,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-16 00:33:15,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-16 00:33:15,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-16 00:33:15,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-16 00:33:15,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-16 00:33:15,949 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-16 00:33:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-16 00:33:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-16 00:33:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-16 00:33:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-16 00:33:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-16 00:33:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-16 00:33:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-16 00:33:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-16 00:33:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-16 00:33:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-16 00:33:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-16 00:33:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-16 00:33:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-16 00:33:15,953 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-16 00:33:15,953 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-16 00:33:15,953 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-16 00:33:15,953 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-16 00:33:15,954 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-16 00:33:15,954 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-16 00:33:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-16 00:33:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-16 00:33:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-16 00:33:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-16 00:33:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-16 00:33:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-16 00:33:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-16 00:33:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-16 00:33:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-16 00:33:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-16 00:33:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-16 00:33:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-16 00:33:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-16 00:33:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-16 00:33:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-16 00:33:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-16 00:33:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-16 00:33:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-16 00:33:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-16 00:33:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-16 00:33:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-16 00:33:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-16 00:33:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-16 00:33:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-16 00:33:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-16 00:33:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-16 00:33:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-16 00:33:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-16 00:33:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-16 00:33:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-16 00:33:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-16 00:33:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-16 00:33:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-16 00:33:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-16 00:33:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-16 00:33:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-16 00:33:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-16 00:33:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-16 00:33:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-16 00:33:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-16 00:33:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-16 00:33:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-16 00:33:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-16 00:33:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-16 00:33:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-16 00:33:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-16 00:33:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-16 00:33:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-16 00:33:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-16 00:33:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-16 00:33:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-16 00:33:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-16 00:33:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-16 00:33:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-16 00:33:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-16 00:33:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-16 00:33:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-16 00:33:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-16 00:33:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-16 00:33:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-16 00:33:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-16 00:33:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-16 00:33:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-16 00:33:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-16 00:33:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-16 00:33:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-16 00:33:15,970 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-16 00:33:15,970 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-16 00:33:15,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-16 00:33:15,970 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-16 00:33:15,970 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-16 00:33:15,970 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-16 00:33:15,970 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-16 00:33:15,970 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-16 00:33:15,971 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-16 00:33:15,971 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-16 00:33:15,971 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-16 00:33:15,971 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-16 00:33:15,971 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-16 00:33:15,971 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-16 00:33:15,971 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-16 00:33:15,972 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-16 00:33:15,972 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-16 00:33:15,972 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-16 00:33:15,972 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-16 00:33:15,972 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-16 00:33:15,972 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-16 00:33:15,972 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-16 00:33:15,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-16 00:33:15,973 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-16 00:33:15,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:33:15,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:33:15,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:33:15,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-16 00:33:15,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-16 00:33:15,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:33:16,384 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:33:16,385 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-16 00:33:16,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:33:16 BoogieIcfgContainer [2019-11-16 00:33:16,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:33:16,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:33:16,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:33:16,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:33:16,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:33:15" (1/3) ... [2019-11-16 00:33:16,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb4d3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:33:16, skipping insertion in model container [2019-11-16 00:33:16,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:15" (2/3) ... [2019-11-16 00:33:16,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb4d3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:33:16, skipping insertion in model container [2019-11-16 00:33:16,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:33:16" (3/3) ... [2019-11-16 00:33:16,393 INFO L109 eAbstractionObserver]: Analyzing ICFG add_last_unsafe.i [2019-11-16 00:33:16,402 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:33:16,416 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2019-11-16 00:33:16,427 INFO L249 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2019-11-16 00:33:16,453 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:33:16,453 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-16 00:33:16,453 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:33:16,454 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:33:16,454 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:33:16,454 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:33:16,454 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:33:16,462 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:33:16,479 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-11-16 00:33:16,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-16 00:33:16,490 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:33:16,491 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:33:16,495 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION]=== [2019-11-16 00:33:16,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:33:16,500 INFO L82 PathProgramCache]: Analyzing trace with hash -2072257551, now seen corresponding path program 1 times [2019-11-16 00:33:16,508 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:33:16,509 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636829263] [2019-11-16 00:33:16,509 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:16,509 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:16,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:33:16,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:33:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:33:16,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:33:16,756 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636829263] [2019-11-16 00:33:16,759 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:33:16,760 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-16 00:33:16,760 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242364097] [2019-11-16 00:33:16,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-16 00:33:16,765 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:33:16,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-16 00:33:16,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-16 00:33:16,781 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 4 states. [2019-11-16 00:33:16,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:33:16,914 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2019-11-16 00:33:16,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-16 00:33:16,915 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-16 00:33:16,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:33:16,924 INFO L225 Difference]: With dead ends: 38 [2019-11-16 00:33:16,924 INFO L226 Difference]: Without dead ends: 35 [2019-11-16 00:33:16,926 INFO L600 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 [2019-11-16 00:33:16,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-16 00:33:16,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-16 00:33:16,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-16 00:33:16,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2019-11-16 00:33:16,960 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 10 [2019-11-16 00:33:16,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:33:16,960 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2019-11-16 00:33:16,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-16 00:33:16,961 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-11-16 00:33:16,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-16 00:33:16,961 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:33:16,961 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:33:16,962 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION]=== [2019-11-16 00:33:16,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:33:16,962 INFO L82 PathProgramCache]: Analyzing trace with hash 184525090, now seen corresponding path program 1 times [2019-11-16 00:33:16,962 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:33:16,963 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573423673] [2019-11-16 00:33:16,963 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:16,963 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:16,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:33:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:33:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:33:17,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:33:17,039 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573423673] [2019-11-16 00:33:17,040 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:33:17,040 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-16 00:33:17,040 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620270929] [2019-11-16 00:33:17,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-16 00:33:17,041 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:33:17,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:33:17,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:33:17,042 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 5 states. [2019-11-16 00:33:17,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:33:17,168 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2019-11-16 00:33:17,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-16 00:33:17,168 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-16 00:33:17,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:33:17,169 INFO L225 Difference]: With dead ends: 29 [2019-11-16 00:33:17,170 INFO L226 Difference]: Without dead ends: 29 [2019-11-16 00:33:17,170 INFO L600 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 [2019-11-16 00:33:17,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-16 00:33:17,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-16 00:33:17,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-16 00:33:17,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2019-11-16 00:33:17,174 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 11 [2019-11-16 00:33:17,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:33:17,175 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2019-11-16 00:33:17,175 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-16 00:33:17,175 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-11-16 00:33:17,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-16 00:33:17,176 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:33:17,176 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:33:17,176 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION]=== [2019-11-16 00:33:17,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:33:17,176 INFO L82 PathProgramCache]: Analyzing trace with hash 184525091, now seen corresponding path program 1 times [2019-11-16 00:33:17,177 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:33:17,177 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088338897] [2019-11-16 00:33:17,177 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:17,177 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:17,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:33:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:33:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:33:17,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:33:17,268 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088338897] [2019-11-16 00:33:17,272 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:33:17,273 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-16 00:33:17,273 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293000204] [2019-11-16 00:33:17,273 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-16 00:33:17,275 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:33:17,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:33:17,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:33:17,276 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 5 states. [2019-11-16 00:33:17,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:33:17,381 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2019-11-16 00:33:17,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:33:17,381 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-16 00:33:17,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:33:17,382 INFO L225 Difference]: With dead ends: 34 [2019-11-16 00:33:17,382 INFO L226 Difference]: Without dead ends: 34 [2019-11-16 00:33:17,383 INFO L600 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 [2019-11-16 00:33:17,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-16 00:33:17,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2019-11-16 00:33:17,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-16 00:33:17,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2019-11-16 00:33:17,388 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 11 [2019-11-16 00:33:17,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:33:17,388 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2019-11-16 00:33:17,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-16 00:33:17,392 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2019-11-16 00:33:17,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-16 00:33:17,393 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:33:17,393 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:33:17,393 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION]=== [2019-11-16 00:33:17,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:33:17,395 INFO L82 PathProgramCache]: Analyzing trace with hash 184525141, now seen corresponding path program 1 times [2019-11-16 00:33:17,395 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:33:17,395 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383955716] [2019-11-16 00:33:17,395 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:17,396 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:17,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:33:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:33:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:33:17,480 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:33:17,481 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:33:17,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:33:17 BoogieIcfgContainer [2019-11-16 00:33:17,502 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:33:17,502 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:33:17,503 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:33:17,503 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:33:17,503 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:33:16" (3/4) ... [2019-11-16 00:33:17,505 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-16 00:33:17,550 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_84d6a36b-632a-405e-909c-862474ce9aef/bin/uautomizer/witness.graphml [2019-11-16 00:33:17,550 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:33:17,552 INFO L168 Benchmark]: Toolchain (without parser) took 2266.38 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 864.9 MB in the end (delta: 78.4 MB). Peak memory consumption was 78.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:33:17,552 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:33:17,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 502.29 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 991.4 MB in the end (delta: -48.1 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:33:17,553 INFO L168 Benchmark]: Boogie Preprocessor took 88.96 ms. Allocated memory is still 1.0 GB. Free memory was 991.4 MB in the beginning and 990.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:33:17,554 INFO L168 Benchmark]: RCFGBuilder took 507.89 ms. Allocated memory is still 1.0 GB. Free memory was 990.1 MB in the beginning and 940.1 MB in the end (delta: 50.0 MB). Peak memory consumption was 50.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:33:17,554 INFO L168 Benchmark]: TraceAbstraction took 1115.11 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 864.9 MB in the end (delta: 75.2 MB). Peak memory consumption was 75.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:33:17,555 INFO L168 Benchmark]: Witness Printer took 47.89 ms. Allocated memory is still 1.0 GB. Free memory is still 864.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:33:17,557 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 502.29 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 991.4 MB in the end (delta: -48.1 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 88.96 ms. Allocated memory is still 1.0 GB. Free memory was 991.4 MB in the beginning and 990.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 507.89 ms. Allocated memory is still 1.0 GB. Free memory was 990.1 MB in the beginning and 940.1 MB in the end (delta: 50.0 MB). Peak memory consumption was 50.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1115.11 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 864.9 MB in the end (delta: 75.2 MB). Peak memory consumption was 75.2 MB. Max. memory is 11.5 GB. * Witness Printer took 47.89 ms. Allocated memory is still 1.0 GB. Free memory is still 864.9 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)={1:0}, arr={1:0}, length=1] [L517] COND FALSE !(!arr) [L518] int *a = arr; [L520] int k = 0; VAL [__builtin_alloca (length)={1:0}, a={1:0}, arr={1:0}, 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: 0.3s, 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...