./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1a59067f-09af-4909-b368-7cbfa64cce36/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1a59067f-09af-4909-b368-7cbfa64cce36/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1a59067f-09af-4909-b368-7cbfa64cce36/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1a59067f-09af-4909-b368-7cbfa64cce36/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1a59067f-09af-4909-b368-7cbfa64cce36/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1a59067f-09af-4909-b368-7cbfa64cce36/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 816de43cb6e982d6a1f876f61d346a36add599ac ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:20:53,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:20:53,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:20:53,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:20:53,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:20:53,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:20:53,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:20:53,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:20:53,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:20:53,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:20:53,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:20:53,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:20:53,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:20:53,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:20:53,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:20:53,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:20:53,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:20:53,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:20:53,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:20:53,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:20:53,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:20:53,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:20:53,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:20:53,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:20:53,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:20:53,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:20:53,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:20:53,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:20:53,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:20:53,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:20:53,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:20:53,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:20:53,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:20:53,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:20:53,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:20:53,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:20:53,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:20:53,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:20:53,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:20:53,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:20:53,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:20:53,276 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1a59067f-09af-4909-b368-7cbfa64cce36/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-28 03:20:53,316 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:20:53,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:20:53,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:20:53,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:20:53,322 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:20:53,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:20:53,323 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:20:53,323 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:20:53,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:20:53,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:20:53,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:20:53,325 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:20:53,325 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:20:53,325 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:20:53,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:20:53,326 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:20:53,326 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:20:53,326 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:20:53,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:20:53,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:20:53,327 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:20:53,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:20:53,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:20:53,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:20:53,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:20:53,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:20:53,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:20:53,328 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:20:53,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_1a59067f-09af-4909-b368-7cbfa64cce36/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1a59067f-09af-4909-b368-7cbfa64cce36/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 816de43cb6e982d6a1f876f61d346a36add599ac [2020-11-28 03:20:53,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:20:53,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:20:53,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:20:53,680 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:20:53,681 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:20:53,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1a59067f-09af-4909-b368-7cbfa64cce36/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0158_1-3.i [2020-11-28 03:20:53,771 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a59067f-09af-4909-b368-7cbfa64cce36/bin/uautomizer/data/387bd6afd/db24c22db8144b8fbd1e9dcbdcc92081/FLAG55b995d10 [2020-11-28 03:20:54,335 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:20:54,336 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1a59067f-09af-4909-b368-7cbfa64cce36/sv-benchmarks/c/list-ext-properties/test-0158_1-3.i [2020-11-28 03:20:54,353 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a59067f-09af-4909-b368-7cbfa64cce36/bin/uautomizer/data/387bd6afd/db24c22db8144b8fbd1e9dcbdcc92081/FLAG55b995d10 [2020-11-28 03:20:54,642 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1a59067f-09af-4909-b368-7cbfa64cce36/bin/uautomizer/data/387bd6afd/db24c22db8144b8fbd1e9dcbdcc92081 [2020-11-28 03:20:54,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:20:54,646 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:20:54,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:54,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:20:54,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:20:54,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:54" (1/1) ... [2020-11-28 03:20:54,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31317375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:54, skipping insertion in model container [2020-11-28 03:20:54,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:54" (1/1) ... [2020-11-28 03:20:54,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:20:54,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:20:55,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:55,014 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:20:55,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:55,119 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:20:55,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55 WrapperNode [2020-11-28 03:20:55,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:55,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:20:55,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:20:55,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:20:55,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (1/1) ... [2020-11-28 03:20:55,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (1/1) ... [2020-11-28 03:20:55,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (1/1) ... [2020-11-28 03:20:55,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (1/1) ... [2020-11-28 03:20:55,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (1/1) ... [2020-11-28 03:20:55,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (1/1) ... [2020-11-28 03:20:55,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (1/1) ... [2020-11-28 03:20:55,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:20:55,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:20:55,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:20:55,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:20:55,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a59067f-09af-4909-b368-7cbfa64cce36/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 [2020-11-28 03:20:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:20:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:20:55,294 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-28 03:20:55,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-28 03:20:55,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-28 03:20:55,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-28 03:20:55,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-28 03:20:55,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-28 03:20:55,297 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:20:55,297 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-28 03:20:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-28 03:20:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-28 03:20:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-28 03:20:55,299 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-28 03:20:55,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:20:55,300 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-28 03:20:55,302 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-28 03:20:55,303 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-28 03:20:55,303 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-28 03:20:55,303 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-28 03:20:55,303 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-28 03:20:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-28 03:20:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-28 03:20:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-28 03:20:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-28 03:20:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-28 03:20:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-28 03:20:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-28 03:20:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-28 03:20:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-28 03:20:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-28 03:20:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-28 03:20:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-28 03:20:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-28 03:20:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-28 03:20:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-28 03:20:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-28 03:20:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-28 03:20:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-28 03:20:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-28 03:20:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-28 03:20:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-28 03:20:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-28 03:20:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-28 03:20:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-28 03:20:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-28 03:20:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-28 03:20:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-28 03:20:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-28 03:20:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-28 03:20:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-28 03:20:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-28 03:20:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-28 03:20:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-28 03:20:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-28 03:20:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-28 03:20:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-28 03:20:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-28 03:20:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-28 03:20:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-28 03:20:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-28 03:20:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-28 03:20:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-28 03:20:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-28 03:20:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-28 03:20:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-28 03:20:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-28 03:20:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-28 03:20:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-28 03:20:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-28 03:20:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-28 03:20:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-28 03:20:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-28 03:20:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-28 03:20:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-28 03:20:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-28 03:20:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-28 03:20:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-28 03:20:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-28 03:20:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-28 03:20:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-28 03:20:55,321 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-28 03:20:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-28 03:20:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-28 03:20:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-28 03:20:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-28 03:20:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-28 03:20:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-28 03:20:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-28 03:20:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-28 03:20:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-28 03:20:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-28 03:20:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-28 03:20:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-28 03:20:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-28 03:20:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-28 03:20:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-28 03:20:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-28 03:20:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-28 03:20:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-28 03:20:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-28 03:20:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-28 03:20:55,326 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-28 03:20:55,326 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-28 03:20:55,326 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-28 03:20:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-28 03:20:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-28 03:20:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-28 03:20:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-28 03:20:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-28 03:20:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-28 03:20:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-28 03:20:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-28 03:20:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-28 03:20:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-28 03:20:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-28 03:20:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-28 03:20:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-28 03:20:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-28 03:20:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-28 03:20:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-28 03:20:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 03:20:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:20:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:20:55,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 03:20:55,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 03:20:55,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:20:55,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:20:55,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:20:55,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:20:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:20:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:20:56,030 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:20:56,030 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-28 03:20:56,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:56 BoogieIcfgContainer [2020-11-28 03:20:56,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:20:56,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:20:56,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:20:56,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:20:56,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:20:54" (1/3) ... [2020-11-28 03:20:56,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15148b81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:56, skipping insertion in model container [2020-11-28 03:20:56,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (2/3) ... [2020-11-28 03:20:56,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15148b81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:56, skipping insertion in model container [2020-11-28 03:20:56,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:56" (3/3) ... [2020-11-28 03:20:56,057 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-3.i [2020-11-28 03:20:56,075 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:20:56,081 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-11-28 03:20:56,096 INFO L253 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-11-28 03:20:56,130 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:20:56,130 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:20:56,130 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:20:56,130 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:20:56,130 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:20:56,131 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:20:56,131 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:20:56,131 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:20:56,153 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-11-28 03:20:56,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:20:56,164 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:56,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:56,166 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-11-28 03:20:56,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:56,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1742406932, now seen corresponding path program 1 times [2020-11-28 03:20:56,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:56,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14544774] [2020-11-28 03:20:56,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:56,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:20:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:56,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:56,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14544774] [2020-11-28 03:20:56,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:56,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:20:56,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345347955] [2020-11-28 03:20:56,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:20:56,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:56,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:20:56,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:56,542 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states. [2020-11-28 03:20:56,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:56,733 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-11-28 03:20:56,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:20:56,735 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-28 03:20:56,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:56,743 INFO L225 Difference]: With dead ends: 40 [2020-11-28 03:20:56,744 INFO L226 Difference]: Without dead ends: 37 [2020-11-28 03:20:56,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:56,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-28 03:20:56,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-28 03:20:56,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-28 03:20:56,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-11-28 03:20:56,790 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 7 [2020-11-28 03:20:56,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:56,791 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-11-28 03:20:56,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:20:56,791 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-11-28 03:20:56,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:20:56,791 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:56,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:56,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:20:56,792 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-11-28 03:20:56,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:56,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1742406931, now seen corresponding path program 1 times [2020-11-28 03:20:56,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:56,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406239094] [2020-11-28 03:20:56,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:56,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:20:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:56,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:56,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406239094] [2020-11-28 03:20:56,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:56,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:20:56,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183689477] [2020-11-28 03:20:56,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:20:56,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:56,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:20:56,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:56,969 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 4 states. [2020-11-28 03:20:57,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:57,150 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2020-11-28 03:20:57,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:20:57,151 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-28 03:20:57,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:57,151 INFO L225 Difference]: With dead ends: 30 [2020-11-28 03:20:57,152 INFO L226 Difference]: Without dead ends: 30 [2020-11-28 03:20:57,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:57,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-28 03:20:57,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-28 03:20:57,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-28 03:20:57,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-11-28 03:20:57,157 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 7 [2020-11-28 03:20:57,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:57,157 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-11-28 03:20:57,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:20:57,157 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-11-28 03:20:57,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 03:20:57,158 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:57,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:57,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:20:57,159 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-11-28 03:20:57,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:57,159 INFO L82 PathProgramCache]: Analyzing trace with hash -689389540, now seen corresponding path program 1 times [2020-11-28 03:20:57,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:57,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301588436] [2020-11-28 03:20:57,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:57,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:20:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:57,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:57,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301588436] [2020-11-28 03:20:57,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:57,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:20:57,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775249524] [2020-11-28 03:20:57,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:20:57,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:57,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:20:57,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:20:57,341 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 6 states. [2020-11-28 03:20:57,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:57,509 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-11-28 03:20:57,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:20:57,511 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-28 03:20:57,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:57,512 INFO L225 Difference]: With dead ends: 29 [2020-11-28 03:20:57,512 INFO L226 Difference]: Without dead ends: 29 [2020-11-28 03:20:57,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:20:57,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-28 03:20:57,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-28 03:20:57,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-28 03:20:57,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-11-28 03:20:57,517 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 15 [2020-11-28 03:20:57,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:57,518 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-11-28 03:20:57,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:20:57,518 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-11-28 03:20:57,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:20:57,518 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:57,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:57,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:20:57,519 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-11-28 03:20:57,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:57,520 INFO L82 PathProgramCache]: Analyzing trace with hash 103760825, now seen corresponding path program 1 times [2020-11-28 03:20:57,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:57,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078015438] [2020-11-28 03:20:57,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:57,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:20:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:57,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:57,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078015438] [2020-11-28 03:20:57,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:57,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:20:57,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318211095] [2020-11-28 03:20:57,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:20:57,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:57,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:20:57,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:20:57,679 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2020-11-28 03:20:57,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:57,820 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-11-28 03:20:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:20:57,821 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-28 03:20:57,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:57,821 INFO L225 Difference]: With dead ends: 28 [2020-11-28 03:20:57,822 INFO L226 Difference]: Without dead ends: 28 [2020-11-28 03:20:57,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:20:57,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-28 03:20:57,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-28 03:20:57,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-28 03:20:57,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-11-28 03:20:57,826 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 16 [2020-11-28 03:20:57,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:57,826 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-11-28 03:20:57,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:20:57,827 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-11-28 03:20:57,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:20:57,827 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:57,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:57,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:20:57,828 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-11-28 03:20:57,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:57,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1078381634, now seen corresponding path program 1 times [2020-11-28 03:20:57,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:57,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262664924] [2020-11-28 03:20:57,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:57,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:20:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:57,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:57,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262664924] [2020-11-28 03:20:57,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:57,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:20:57,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517694904] [2020-11-28 03:20:57,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:20:57,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:57,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:20:57,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:20:57,916 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 6 states. [2020-11-28 03:20:58,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:58,036 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-11-28 03:20:58,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:20:58,037 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-28 03:20:58,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:58,038 INFO L225 Difference]: With dead ends: 27 [2020-11-28 03:20:58,038 INFO L226 Difference]: Without dead ends: 27 [2020-11-28 03:20:58,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:20:58,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-28 03:20:58,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-28 03:20:58,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-28 03:20:58,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-11-28 03:20:58,042 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 17 [2020-11-28 03:20:58,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:58,042 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-11-28 03:20:58,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:20:58,043 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-11-28 03:20:58,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:20:58,043 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:58,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:58,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:20:58,044 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-11-28 03:20:58,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:58,044 INFO L82 PathProgramCache]: Analyzing trace with hash 929907803, now seen corresponding path program 1 times [2020-11-28 03:20:58,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:58,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581512304] [2020-11-28 03:20:58,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:58,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:20:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:58,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:58,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581512304] [2020-11-28 03:20:58,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:58,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:20:58,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959244506] [2020-11-28 03:20:58,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:20:58,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:58,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:20:58,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:20:58,176 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 7 states. [2020-11-28 03:20:58,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:58,334 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-11-28 03:20:58,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:20:58,334 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-28 03:20:58,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:58,335 INFO L225 Difference]: With dead ends: 26 [2020-11-28 03:20:58,335 INFO L226 Difference]: Without dead ends: 26 [2020-11-28 03:20:58,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:20:58,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-11-28 03:20:58,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-11-28 03:20:58,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-28 03:20:58,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-11-28 03:20:58,339 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 18 [2020-11-28 03:20:58,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:58,339 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-11-28 03:20:58,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:20:58,339 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-11-28 03:20:58,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:20:58,344 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:58,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:58,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:20:58,347 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-11-28 03:20:58,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:58,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1237629088, now seen corresponding path program 1 times [2020-11-28 03:20:58,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:58,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241632827] [2020-11-28 03:20:58,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:58,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:20:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:58,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:58,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241632827] [2020-11-28 03:20:58,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:58,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:20:58,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633003933] [2020-11-28 03:20:58,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:20:58,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:58,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:20:58,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:20:58,492 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 7 states. [2020-11-28 03:20:58,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:58,633 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-11-28 03:20:58,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:20:58,634 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-28 03:20:58,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:58,634 INFO L225 Difference]: With dead ends: 25 [2020-11-28 03:20:58,634 INFO L226 Difference]: Without dead ends: 25 [2020-11-28 03:20:58,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:20:58,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-28 03:20:58,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-11-28 03:20:58,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-28 03:20:58,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2020-11-28 03:20:58,638 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 19 [2020-11-28 03:20:58,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:58,638 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2020-11-28 03:20:58,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:20:58,639 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-11-28 03:20:58,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 03:20:58,639 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:58,639 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:58,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:20:58,640 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-11-28 03:20:58,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:58,640 INFO L82 PathProgramCache]: Analyzing trace with hash 288204029, now seen corresponding path program 1 times [2020-11-28 03:20:58,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:58,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952748756] [2020-11-28 03:20:58,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:58,668 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:58,700 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:58,731 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:58,731 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:20:58,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:20:58,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:20:58 BoogieIcfgContainer [2020-11-28 03:20:58,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:20:58,760 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:20:58,760 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:20:58,760 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:20:58,761 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:56" (3/4) ... [2020-11-28 03:20:58,762 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:20:58,810 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1a59067f-09af-4909-b368-7cbfa64cce36/bin/uautomizer/witness.graphml [2020-11-28 03:20:58,810 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:20:58,812 INFO L168 Benchmark]: Toolchain (without parser) took 4164.85 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 57.2 MB in the beginning and 61.2 MB in the end (delta: -3.9 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:58,813 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 92.3 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 24.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:58,814 INFO L168 Benchmark]: CACSL2BoogieTranslator took 472.75 ms. Allocated memory is still 92.3 MB. Free memory was 57.0 MB in the beginning and 57.7 MB in the end (delta: -691.8 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:58,814 INFO L168 Benchmark]: Boogie Preprocessor took 64.74 ms. Allocated memory is still 92.3 MB. Free memory was 57.7 MB in the beginning and 55.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:58,815 INFO L168 Benchmark]: RCFGBuilder took 846.40 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 55.2 MB in the beginning and 77.6 MB in the end (delta: -22.4 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:58,816 INFO L168 Benchmark]: TraceAbstraction took 2721.55 ms. Allocated memory is still 117.4 MB. Free memory was 76.8 MB in the beginning and 63.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:58,816 INFO L168 Benchmark]: Witness Printer took 50.52 ms. Allocated memory is still 117.4 MB. Free memory was 63.3 MB in the beginning and 61.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:58,820 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 92.3 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 24.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 472.75 ms. Allocated memory is still 92.3 MB. Free memory was 57.0 MB in the beginning and 57.7 MB in the end (delta: -691.8 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.74 ms. Allocated memory is still 92.3 MB. Free memory was 57.7 MB in the beginning and 55.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 846.40 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 55.2 MB in the beginning and 77.6 MB in the end (delta: -22.4 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2721.55 ms. Allocated memory is still 117.4 MB. Free memory was 76.8 MB in the beginning and 63.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. * Witness Printer took 50.52 ms. Allocated memory is still 117.4 MB. Free memory was 63.3 MB in the beginning and 61.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 545]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={-1:0}] [L535] EXPR data.p0 VAL [data={3:0}, data.p0={-1:0}, malloc(37U)={-1:0}] [L535] void *ptr = data.p0; [L536] COND FALSE !(__VERIFIER_nondet_int()) [L539] data.str.p2 = 30 VAL [data={3:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L541] EXPR data.str.p2 VAL [data={3:0}, data.str.p2=30, malloc(37U)={-1:0}, ptr={-1:0}] [L541] COND FALSE !(25 > data.str.p2) [L544] EXPR data.p0 VAL [data={3:0}, data.p0={-1:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L544] free(data.p0) VAL [data={3:0}, data.p0={-1:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L544] free(data.p0) VAL [data={3:0}, data.p0={-1:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L544] free(data.p0) [L545] free(ptr) VAL [data={3:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L545] free(ptr) VAL [data={3:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L545] free(ptr) VAL [data={3:0}, malloc(37U)={-1:0}, ptr={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 67 locations, 22 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.6s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 121 SDtfs, 201 SDslu, 159 SDs, 0 SdLazy, 374 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 7942 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...