./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_04_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_04_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ab73cdbc4fc94916cfd54e15d41355423928f7df20ed3143a601f63d7e5fb6bb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 19:23:16,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:23:16,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:23:16,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:23:16,838 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:23:16,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:23:16,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:23:16,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:23:16,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:23:16,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:23:16,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:23:16,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:23:16,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:23:16,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:23:16,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:23:16,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:23:16,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:23:16,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:23:16,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:23:16,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:23:16,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:23:16,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:23:16,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:23:16,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:23:16,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:23:16,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:23:16,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:23:16,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:23:16,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:23:16,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:23:16,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:23:16,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:23:16,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:23:16,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:23:16,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:23:16,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:23:16,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:23:16,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:23:16,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:23:16,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:23:16,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:23:16,860 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 19:23:16,875 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:23:16,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:23:16,875 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:23:16,875 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:23:16,876 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:23:16,876 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:23:16,877 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:23:16,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:23:16,877 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:23:16,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:23:16,877 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:23:16,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:23:16,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:23:16,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:23:16,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:23:16,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:23:16,878 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 19:23:16,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:23:16,878 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:23:16,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:23:16,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:23:16,878 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:23:16,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:23:16,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:23:16,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:23:16,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:23:16,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:23:16,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:23:16,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:23:16,879 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:23:16,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:23:16,879 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:23:16,880 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:23:16,880 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:23:16,880 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab73cdbc4fc94916cfd54e15d41355423928f7df20ed3143a601f63d7e5fb6bb [2022-12-13 19:23:17,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:23:17,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:23:17,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:23:17,070 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:23:17,071 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:23:17,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_04_bad.i [2022-12-13 19:23:19,580 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:23:19,802 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:23:19,803 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_04_bad.i [2022-12-13 19:23:19,815 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/data/52af13abd/af8253d25cd842c09d2cea469ee97613/FLAG4381b875b [2022-12-13 19:23:20,177 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/data/52af13abd/af8253d25cd842c09d2cea469ee97613 [2022-12-13 19:23:20,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:23:20,187 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:23:20,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:23:20,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:23:20,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:23:20,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:23:20" (1/1) ... [2022-12-13 19:23:20,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193745c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:20, skipping insertion in model container [2022-12-13 19:23:20,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:23:20" (1/1) ... [2022-12-13 19:23:20,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:23:20,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:23:20,491 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 19:23:20,804 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 19:23:20,809 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:23:20,811 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:23:20,813 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:23:20,814 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:23:20,837 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 19:23:20,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:23:20,848 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:23:20,863 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 19:23:20,908 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 19:23:20,909 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:23:20,910 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:23:20,913 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:23:20,914 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:23:20,919 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 19:23:20,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:23:21,034 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:23:21,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:21 WrapperNode [2022-12-13 19:23:21,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:23:21,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:23:21,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:23:21,035 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:23:21,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:21" (1/1) ... [2022-12-13 19:23:21,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:21" (1/1) ... [2022-12-13 19:23:21,084 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2022-12-13 19:23:21,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:23:21,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:23:21,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:23:21,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:23:21,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:21" (1/1) ... [2022-12-13 19:23:21,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:21" (1/1) ... [2022-12-13 19:23:21,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:21" (1/1) ... [2022-12-13 19:23:21,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:21" (1/1) ... [2022-12-13 19:23:21,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:21" (1/1) ... [2022-12-13 19:23:21,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:21" (1/1) ... [2022-12-13 19:23:21,105 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:21" (1/1) ... [2022-12-13 19:23:21,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:21" (1/1) ... [2022-12-13 19:23:21,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:23:21,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:23:21,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:23:21,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:23:21,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:21" (1/1) ... [2022-12-13 19:23:21,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:23:21,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:23:21,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:23:21,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:23:21,167 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 19:23:21,167 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 19:23:21,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:23:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:23:21,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:23:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 19:23:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:23:21,263 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:23:21,264 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:23:21,378 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:23:21,382 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:23:21,382 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:23:21,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:23:21 BoogieIcfgContainer [2022-12-13 19:23:21,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:23:21,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:23:21,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:23:21,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:23:21,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:23:20" (1/3) ... [2022-12-13 19:23:21,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@504c9148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:23:21, skipping insertion in model container [2022-12-13 19:23:21,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:21" (2/3) ... [2022-12-13 19:23:21,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@504c9148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:23:21, skipping insertion in model container [2022-12-13 19:23:21,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:23:21" (3/3) ... [2022-12-13 19:23:21,390 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_04_bad.i [2022-12-13 19:23:21,403 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:23:21,403 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 19:23:21,437 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:23:21,442 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@528ff5c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:23:21,442 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 19:23:21,445 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 19:23:21,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 19:23:21,450 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:23:21,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:23:21,451 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 19:23:21,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:23:21,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1654475935, now seen corresponding path program 1 times [2022-12-13 19:23:21,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:23:21,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696755519] [2022-12-13 19:23:21,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:23:21,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:23:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:23:21,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:23:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:23:21,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:23:21,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:23:21,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696755519] [2022-12-13 19:23:21,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696755519] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:23:21,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:23:21,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:23:21,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581252049] [2022-12-13 19:23:21,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:23:21,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:23:21,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:23:21,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:23:21,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:23:21,674 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 19:23:21,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:23:21,696 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-12-13 19:23:21,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:23:21,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 19:23:21,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:23:21,702 INFO L225 Difference]: With dead ends: 39 [2022-12-13 19:23:21,702 INFO L226 Difference]: Without dead ends: 16 [2022-12-13 19:23:21,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:23:21,706 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:23:21,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 23 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:23:21,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-13 19:23:21,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-13 19:23:21,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 19:23:21,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-12-13 19:23:21,732 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2022-12-13 19:23:21,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:23:21,732 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-12-13 19:23:21,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 19:23:21,732 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-12-13 19:23:21,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 19:23:21,733 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:23:21,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:23:21,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:23:21,733 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 19:23:21,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:23:21,734 INFO L85 PathProgramCache]: Analyzing trace with hash 804858586, now seen corresponding path program 1 times [2022-12-13 19:23:21,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:23:21,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886579267] [2022-12-13 19:23:21,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:23:21,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:23:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:23:21,764 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:23:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:23:21,800 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:23:21,800 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 19:23:21,801 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 19:23:21,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 19:23:21,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:23:21,806 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 19:23:21,808 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:23:21,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:23:21 BoogieIcfgContainer [2022-12-13 19:23:21,825 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:23:21,826 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:23:21,826 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:23:21,826 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:23:21,826 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:23:21" (3/4) ... [2022-12-13 19:23:21,829 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 19:23:21,829 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:23:21,829 INFO L158 Benchmark]: Toolchain (without parser) took 1643.37ms. Allocated memory was 136.3MB in the beginning and 169.9MB in the end (delta: 33.6MB). Free memory was 98.2MB in the beginning and 132.0MB in the end (delta: -33.7MB). Peak memory consumption was 875.3kB. Max. memory is 16.1GB. [2022-12-13 19:23:21,830 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 136.3MB. Free memory is still 111.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:23:21,830 INFO L158 Benchmark]: CACSL2BoogieTranslator took 844.54ms. Allocated memory was 136.3MB in the beginning and 169.9MB in the end (delta: 33.6MB). Free memory was 97.8MB in the beginning and 121.0MB in the end (delta: -23.2MB). Peak memory consumption was 59.2MB. Max. memory is 16.1GB. [2022-12-13 19:23:21,830 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.73ms. Allocated memory is still 169.9MB. Free memory was 121.0MB in the beginning and 117.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 19:23:21,831 INFO L158 Benchmark]: Boogie Preprocessor took 23.86ms. Allocated memory is still 169.9MB. Free memory was 117.7MB in the beginning and 115.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:23:21,831 INFO L158 Benchmark]: RCFGBuilder took 274.46ms. Allocated memory is still 169.9MB. Free memory was 115.7MB in the beginning and 102.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 19:23:21,831 INFO L158 Benchmark]: TraceAbstraction took 440.04ms. Allocated memory is still 169.9MB. Free memory was 102.0MB in the beginning and 132.0MB in the end (delta: -30.0MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2022-12-13 19:23:21,831 INFO L158 Benchmark]: Witness Printer took 3.04ms. Allocated memory is still 169.9MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:23:21,833 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 136.3MB. Free memory is still 111.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 844.54ms. Allocated memory was 136.3MB in the beginning and 169.9MB in the end (delta: 33.6MB). Free memory was 97.8MB in the beginning and 121.0MB in the end (delta: -23.2MB). Peak memory consumption was 59.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.73ms. Allocated memory is still 169.9MB. Free memory was 121.0MB in the beginning and 117.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.86ms. Allocated memory is still 169.9MB. Free memory was 117.7MB in the beginning and 115.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 274.46ms. Allocated memory is still 169.9MB. Free memory was 115.7MB in the beginning and 102.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 440.04ms. Allocated memory is still 169.9MB. Free memory was 102.0MB in the beginning and 132.0MB in the end (delta: -30.0MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. * Witness Printer took 3.04ms. Allocated memory is still 169.9MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1561]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1556, overapproximation of bitwiseAnd at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static const int STATIC_CONST_TRUE = 1; [L1549] static const int STATIC_CONST_FALSE = 0; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1570] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [\old(argc)=2147483650, argc=2147483650, argv={2147483649:2147483651}, argv={2147483649:2147483651}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1571] CALL CWE191_Integer_Underflow__int_rand_postdec_04_bad() [L1552] int data; [L1553] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1554] COND TRUE \read(STATIC_CONST_TRUE) [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=5, rand()=4, rand()=65536, rand()=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483648, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1558] COND TRUE \read(STATIC_CONST_TRUE) [L1561] data-- VAL [data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] - UnprovableResult [Line: 1561]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 23 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 19:23:21,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_04_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ab73cdbc4fc94916cfd54e15d41355423928f7df20ed3143a601f63d7e5fb6bb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 19:23:23,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:23:23,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:23:23,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:23:23,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:23:23,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:23:23,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:23:23,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:23:23,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:23:23,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:23:23,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:23:23,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:23:23,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:23:23,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:23:23,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:23:23,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:23:23,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:23:23,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:23:23,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:23:23,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:23:23,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:23:23,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:23:23,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:23:23,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:23:23,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:23:23,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:23:23,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:23:23,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:23:23,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:23:23,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:23:23,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:23:23,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:23:23,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:23:23,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:23:23,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:23:23,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:23:23,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:23:23,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:23:23,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:23:23,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:23:23,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:23:23,417 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 19:23:23,437 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:23:23,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:23:23,438 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:23:23,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:23:23,438 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:23:23,439 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:23:23,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:23:23,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:23:23,439 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:23:23,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:23:23,440 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:23:23,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:23:23,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:23:23,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:23:23,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:23:23,440 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 19:23:23,440 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 19:23:23,440 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 19:23:23,441 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 19:23:23,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:23:23,441 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:23:23,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:23:23,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:23:23,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:23:23,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:23:23,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:23:23,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:23:23,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:23:23,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:23:23,442 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 19:23:23,442 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 19:23:23,442 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:23:23,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:23:23,442 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:23:23,443 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:23:23,443 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 19:23:23,443 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:23:23,443 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab73cdbc4fc94916cfd54e15d41355423928f7df20ed3143a601f63d7e5fb6bb [2022-12-13 19:23:23,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:23:23,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:23:23,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:23:23,674 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:23:23,674 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:23:23,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_04_bad.i [2022-12-13 19:23:26,225 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:23:26,463 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:23:26,463 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_04_bad.i [2022-12-13 19:23:26,477 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/data/1d393a48a/ad8d139cb64a4b61bbd69c9b4d5a2a5e/FLAG7f4479428 [2022-12-13 19:23:26,488 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/data/1d393a48a/ad8d139cb64a4b61bbd69c9b4d5a2a5e [2022-12-13 19:23:26,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:23:26,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:23:26,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:23:26,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:23:26,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:23:26,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:23:26" (1/1) ... [2022-12-13 19:23:26,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f0d548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:26, skipping insertion in model container [2022-12-13 19:23:26,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:23:26" (1/1) ... [2022-12-13 19:23:26,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:23:26,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:23:26,859 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 19:23:27,222 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 19:23:27,226 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:23:27,227 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:23:27,228 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:23:27,229 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:23:27,244 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 19:23:27,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:23:27,255 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:23:27,268 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 19:23:27,299 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 19:23:27,300 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:23:27,302 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:23:27,303 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:23:27,303 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:23:27,307 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 19:23:27,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:23:27,384 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:23:27,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:27 WrapperNode [2022-12-13 19:23:27,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:23:27,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:23:27,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:23:27,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:23:27,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:27" (1/1) ... [2022-12-13 19:23:27,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:27" (1/1) ... [2022-12-13 19:23:27,422 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2022-12-13 19:23:27,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:23:27,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:23:27,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:23:27,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:23:27,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:27" (1/1) ... [2022-12-13 19:23:27,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:27" (1/1) ... [2022-12-13 19:23:27,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:27" (1/1) ... [2022-12-13 19:23:27,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:27" (1/1) ... [2022-12-13 19:23:27,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:27" (1/1) ... [2022-12-13 19:23:27,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:27" (1/1) ... [2022-12-13 19:23:27,450 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:27" (1/1) ... [2022-12-13 19:23:27,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:27" (1/1) ... [2022-12-13 19:23:27,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:23:27,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:23:27,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:23:27,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:23:27,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:27" (1/1) ... [2022-12-13 19:23:27,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:23:27,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:23:27,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:23:27,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:23:27,508 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 19:23:27,508 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 19:23:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 19:23:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:23:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:23:27,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:23:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 19:23:27,621 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:23:27,622 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:23:27,725 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:23:27,729 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:23:27,729 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:23:27,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:23:27 BoogieIcfgContainer [2022-12-13 19:23:27,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:23:27,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:23:27,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:23:27,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:23:27,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:23:26" (1/3) ... [2022-12-13 19:23:27,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5eaa47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:23:27, skipping insertion in model container [2022-12-13 19:23:27,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:23:27" (2/3) ... [2022-12-13 19:23:27,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5eaa47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:23:27, skipping insertion in model container [2022-12-13 19:23:27,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:23:27" (3/3) ... [2022-12-13 19:23:27,736 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_04_bad.i [2022-12-13 19:23:27,750 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:23:27,750 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 19:23:27,782 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:23:27,787 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@690e2a2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:23:27,787 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 19:23:27,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 19:23:27,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 19:23:27,796 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:23:27,796 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:23:27,797 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 19:23:27,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:23:27,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1654475935, now seen corresponding path program 1 times [2022-12-13 19:23:27,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:23:27,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410870930] [2022-12-13 19:23:27,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:23:27,810 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:23:27,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:23:27,811 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:23:27,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 19:23:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:23:27,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 19:23:27,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:23:28,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:23:28,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:23:28,009 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:23:28,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410870930] [2022-12-13 19:23:28,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410870930] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:23:28,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:23:28,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:23:28,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877396337] [2022-12-13 19:23:28,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:23:28,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:23:28,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:23:28,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:23:28,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:23:28,042 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 19:23:28,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:23:28,063 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-12-13 19:23:28,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:23:28,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 19:23:28,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:23:28,073 INFO L225 Difference]: With dead ends: 38 [2022-12-13 19:23:28,073 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 19:23:28,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:23:28,079 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:23:28,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 22 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:23:28,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 19:23:28,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 19:23:28,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 19:23:28,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-12-13 19:23:28,111 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-12-13 19:23:28,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:23:28,112 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-12-13 19:23:28,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 19:23:28,112 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-12-13 19:23:28,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 19:23:28,112 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:23:28,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:23:28,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:23:28,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:23:28,315 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 19:23:28,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:23:28,318 INFO L85 PathProgramCache]: Analyzing trace with hash 804858586, now seen corresponding path program 1 times [2022-12-13 19:23:28,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:23:28,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317678276] [2022-12-13 19:23:28,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:23:28,321 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:23:28,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:23:28,325 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:23:28,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 19:23:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:23:28,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:23:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:23:28,527 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 19:23:28,527 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 19:23:28,528 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 19:23:28,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 19:23:28,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 19:23:28,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:23:28,741 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 19:23:28,752 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:23:28,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:23:28 BoogieIcfgContainer [2022-12-13 19:23:28,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:23:28,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:23:28,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:23:28,793 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:23:28,793 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:23:27" (3/4) ... [2022-12-13 19:23:28,794 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 19:23:28,820 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 19:23:28,821 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:23:28,821 INFO L158 Benchmark]: Toolchain (without parser) took 2330.15ms. Allocated memory is still 81.8MB. Free memory was 57.1MB in the beginning and 30.4MB in the end (delta: 26.7MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2022-12-13 19:23:28,821 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 39.3MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:23:28,822 INFO L158 Benchmark]: CACSL2BoogieTranslator took 893.24ms. Allocated memory is still 81.8MB. Free memory was 57.1MB in the beginning and 35.8MB in the end (delta: 21.3MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2022-12-13 19:23:28,822 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.98ms. Allocated memory is still 81.8MB. Free memory was 35.4MB in the beginning and 32.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:23:28,822 INFO L158 Benchmark]: Boogie Preprocessor took 32.02ms. Allocated memory is still 81.8MB. Free memory was 32.5MB in the beginning and 55.2MB in the end (delta: -22.8MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2022-12-13 19:23:28,822 INFO L158 Benchmark]: RCFGBuilder took 275.24ms. Allocated memory is still 81.8MB. Free memory was 55.2MB in the beginning and 42.3MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 19:23:28,823 INFO L158 Benchmark]: TraceAbstraction took 1060.26ms. Allocated memory is still 81.8MB. Free memory was 41.4MB in the beginning and 32.9MB in the end (delta: 8.5MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-12-13 19:23:28,823 INFO L158 Benchmark]: Witness Printer took 27.80ms. Allocated memory is still 81.8MB. Free memory was 32.9MB in the beginning and 30.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:23:28,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 39.3MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 893.24ms. Allocated memory is still 81.8MB. Free memory was 57.1MB in the beginning and 35.8MB in the end (delta: 21.3MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.98ms. Allocated memory is still 81.8MB. Free memory was 35.4MB in the beginning and 32.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.02ms. Allocated memory is still 81.8MB. Free memory was 32.5MB in the beginning and 55.2MB in the end (delta: -22.8MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * RCFGBuilder took 275.24ms. Allocated memory is still 81.8MB. Free memory was 55.2MB in the beginning and 42.3MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1060.26ms. Allocated memory is still 81.8MB. Free memory was 41.4MB in the beginning and 32.9MB in the end (delta: 8.5MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Witness Printer took 27.80ms. Allocated memory is still 81.8MB. Free memory was 32.9MB in the beginning and 30.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1561]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static const int STATIC_CONST_TRUE = 1; [L1549] static const int STATIC_CONST_FALSE = 0; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1570] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1571] CALL CWE191_Integer_Underflow__int_rand_postdec_04_bad() [L1552] int data; [L1553] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1554] COND TRUE \read(STATIC_CONST_TRUE) [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=1, rand()=0, rand()=65536, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1558] COND TRUE \read(STATIC_CONST_TRUE) [L1561] data-- VAL [data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] - UnprovableResult [Line: 1561]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 22 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 2 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 19:23:28,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed779303-ea3f-4697-b997-2122f04d037e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)