./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/reverse_array_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/working_dir_69cb0bca-a7bc-4179-8a9e-e6d352f4b6f0/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_69cb0bca-a7bc-4179-8a9e-e6d352f4b6f0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_69cb0bca-a7bc-4179-8a9e-e6d352f4b6f0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_69cb0bca-a7bc-4179-8a9e-e6d352f4b6f0/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/reverse_array_unsafe.i -s /tmp/vcloud-vcloud-master/worker/working_dir_69cb0bca-a7bc-4179-8a9e-e6d352f4b6f0/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_69cb0bca-a7bc-4179-8a9e-e6d352f4b6f0/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 94dea6eddb2a1fd381e32f00f2713f560a4fbdc4 .......................................................................................................................................................................................................................................................................................................................................................................................... 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 [2019-10-22 08:55:46,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:46,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:46,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:46,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:46,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:46,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:46,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:46,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:46,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:46,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:46,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:46,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:46,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:46,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:46,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:46,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:46,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:46,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:46,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:46,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:46,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:46,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:46,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:46,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:46,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:46,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:46,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:46,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:46,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:46,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:46,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:46,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:46,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:46,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:46,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:46,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:46,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:46,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:46,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:46,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:46,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_69cb0bca-a7bc-4179-8a9e-e6d352f4b6f0/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 08:55:46,628 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:46,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:46,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:46,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:46,630 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:46,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:46,631 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:46,631 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:55:46,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:46,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:46,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:46,631 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:55:46,632 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:55:46,632 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 08:55:46,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:55:46,632 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:46,632 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:46,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:46,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:46,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:55:46,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:55:46,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:46,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:46,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:55:46,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:46,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:55:46,634 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/working_dir_69cb0bca-a7bc-4179-8a9e-e6d352f4b6f0/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 -> 94dea6eddb2a1fd381e32f00f2713f560a4fbdc4 [2019-10-22 08:55:46,660 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:46,671 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:46,675 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:46,676 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:46,676 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:46,677 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_69cb0bca-a7bc-4179-8a9e-e6d352f4b6f0/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/reverse_array_unsafe.i [2019-10-22 08:55:46,738 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_69cb0bca-a7bc-4179-8a9e-e6d352f4b6f0/bin/uautomizer/data/34a3c25fb/9878531e24b04801b489f3d6a601bfca/FLAGd0a70375d [2019-10-22 08:55:47,202 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:47,203 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_69cb0bca-a7bc-4179-8a9e-e6d352f4b6f0/sv-benchmarks/c/array-memsafety/reverse_array_unsafe.i [2019-10-22 08:55:47,216 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_69cb0bca-a7bc-4179-8a9e-e6d352f4b6f0/bin/uautomizer/data/34a3c25fb/9878531e24b04801b489f3d6a601bfca/FLAGd0a70375d [2019-10-22 08:55:47,525 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_69cb0bca-a7bc-4179-8a9e-e6d352f4b6f0/bin/uautomizer/data/34a3c25fb/9878531e24b04801b489f3d6a601bfca [2019-10-22 08:55:47,528 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:47,529 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:55:47,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:47,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:47,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:47,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:47" (1/1) ... [2019-10-22 08:55:47,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a7a93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:47, skipping insertion in model container [2019-10-22 08:55:47,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:47" (1/1) ... [2019-10-22 08:55:47,542 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:47,575 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:47,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:47,926 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:47,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:48,033 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:48,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48 WrapperNode [2019-10-22 08:55:48,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:48,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:48,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:48,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:48,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (1/1) ... [2019-10-22 08:55:48,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (1/1) ... [2019-10-22 08:55:48,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (1/1) ... [2019-10-22 08:55:48,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (1/1) ... [2019-10-22 08:55:48,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (1/1) ... [2019-10-22 08:55:48,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (1/1) ... [2019-10-22 08:55:48,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (1/1) ... [2019-10-22 08:55:48,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:48,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:48,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:48,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:48,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_69cb0bca-a7bc-4179-8a9e-e6d352f4b6f0/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 [2019-10-22 08:55:48,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:55:48,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:48,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 08:55:48,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 08:55:48,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 08:55:48,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 08:55:48,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 08:55:48,152 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:55:48,153 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:55:48,153 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:55:48,153 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:55:48,153 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:55:48,153 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:55:48,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:55:48,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:55:48,154 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:55:48,154 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:55:48,154 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:55:48,154 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:55:48,154 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:55:48,154 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:55:48,155 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:55:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:55:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:55:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 08:55:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 08:55:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 08:55:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 08:55:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 08:55:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:55:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:55:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:55:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:55:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:55:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:55:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:55:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:55:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:55:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:55:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:55:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:55:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:55:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:55:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:55:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:55:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:55:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:55:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:55:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:55:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:55:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:55:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:55:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:55:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:55:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:55:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:55:48,159 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:55:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:55:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:55:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:55:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:55:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:55:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:55:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:55:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:55:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:55:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:55:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:55:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:55:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:55:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:55:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:55:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:55:48,165 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:55:48,165 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:55:48,165 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:55:48,165 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:55:48,165 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:55:48,165 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:55:48,165 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:55:48,165 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:55:48,165 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:55:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:55:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:55:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:55:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:55:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:55:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:55:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:55:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:55:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:55:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:55:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:55:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:55:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:55:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:55:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:55:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:55:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:55:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:55:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:55:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:55:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:55:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:55:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:55:48,168 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:55:48,168 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:55:48,168 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:55:48,168 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:55:48,168 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:55:48,168 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:55:48,168 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:55:48,168 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:55:48,168 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:55:48,168 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:55:48,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 08:55:48,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-22 08:55:48,168 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:55:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:55:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:55:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:55:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:55:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:55:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:48,599 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:48,599 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-22 08:55:48,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:48 BoogieIcfgContainer [2019-10-22 08:55:48,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:48,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:55:48,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:55:48,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:55:48,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:55:47" (1/3) ... [2019-10-22 08:55:48,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780b21a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:48, skipping insertion in model container [2019-10-22 08:55:48,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (2/3) ... [2019-10-22 08:55:48,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780b21a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:48, skipping insertion in model container [2019-10-22 08:55:48,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:48" (3/3) ... [2019-10-22 08:55:48,606 INFO L109 eAbstractionObserver]: Analyzing ICFG reverse_array_unsafe.i [2019-10-22 08:55:48,615 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:55:48,621 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 23 error locations. [2019-10-22 08:55:48,631 INFO L249 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2019-10-22 08:55:48,647 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:55:48,648 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:55:48,648 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:55:48,648 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:48,648 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:48,648 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:55:48,648 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:48,648 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:55:48,662 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2019-10-22 08:55:48,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 08:55:48,670 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:48,671 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:48,672 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr8REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr22ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION]=== [2019-10-22 08:55:48,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:48,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1096953401, now seen corresponding path program 1 times [2019-10-22 08:55:48,685 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:48,685 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377439480] [2019-10-22 08:55:48,685 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:48,685 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:48,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:48,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:48,874 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377439480] [2019-10-22 08:55:48,875 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:48,875 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:55:48,875 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881446890] [2019-10-22 08:55:48,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:55:48,879 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:48,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:55:48,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:55:48,889 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 4 states. [2019-10-22 08:55:49,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:49,041 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2019-10-22 08:55:49,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:55:49,043 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-22 08:55:49,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:49,051 INFO L225 Difference]: With dead ends: 66 [2019-10-22 08:55:49,051 INFO L226 Difference]: Without dead ends: 63 [2019-10-22 08:55:49,052 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 [2019-10-22 08:55:49,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-10-22 08:55:49,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2019-10-22 08:55:49,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-10-22 08:55:49,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2019-10-22 08:55:49,084 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 11 [2019-10-22 08:55:49,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:49,085 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2019-10-22 08:55:49,085 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:55:49,085 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2019-10-22 08:55:49,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 08:55:49,085 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:49,085 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:49,086 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr8REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr22ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION]=== [2019-10-22 08:55:49,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:49,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1096893819, now seen corresponding path program 1 times [2019-10-22 08:55:49,086 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:49,086 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150881000] [2019-10-22 08:55:49,086 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:49,087 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:49,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:49,154 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:49,154 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:55:49,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:55:49 BoogieIcfgContainer [2019-10-22 08:55:49,169 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:55:49,170 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:49,170 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:49,170 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:49,170 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:48" (3/4) ... [2019-10-22 08:55:49,172 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:55:49,203 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_69cb0bca-a7bc-4179-8a9e-e6d352f4b6f0/bin/uautomizer/witness.graphml [2019-10-22 08:55:49,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:49,205 INFO L168 Benchmark]: Toolchain (without parser) took 1675.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 945.8 MB in the beginning and 1.0 GB in the end (delta: -58.1 MB). Peak memory consumption was 72.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:49,205 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:49,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -166.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:49,206 INFO L168 Benchmark]: Boogie Preprocessor took 50.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:49,207 INFO L168 Benchmark]: RCFGBuilder took 514.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 56.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:49,207 INFO L168 Benchmark]: TraceAbstraction took 568.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:49,208 INFO L168 Benchmark]: Witness Printer took 33.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:49,210 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 504.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -166.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 514.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 56.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 568.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 11.5 GB. * Witness Printer took 33.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. 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: [L515] int i, j, tmp; [L516] int length = __VERIFIER_nondet_int(); [L517] COND TRUE length < 1 [L517] length = 1 VAL [length=1] [L518] COND FALSE !(length % 2 == 0) VAL [length=1] [L519] int *arr = __builtin_alloca (length); [L520] int i = 0; VAL [__builtin_alloca (length)={1:0}, arr={1:0}, i=0, length=1] [L520] COND TRUE i < length [L522] arr[i] = __VERIFIER_nondet_int() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 80 locations, 23 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 65 SDslu, 9 SDs, 0 SdLazy, 73 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 260 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...