./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_07_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_07_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R --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 ce5762cc9246f1ac6fc3954541dad7dc4d074fedd58b1df7ab6ae71a6fb561c6 --- 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-38b53e6 [2022-11-25 17:58:41,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:58:41,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:58:41,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:58:41,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:58:41,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:58:41,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:58:41,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:58:41,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:58:41,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:58:41,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:58:41,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:58:41,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:58:41,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:58:41,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:58:41,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:58:41,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:58:41,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:58:41,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:58:41,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:58:41,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:58:41,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:58:41,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:58:41,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:58:41,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:58:41,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:58:41,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:58:41,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:58:41,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:58:41,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:58:41,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:58:41,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:58:41,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:58:41,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:58:41,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:58:41,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:58:41,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:58:41,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:58:41,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:58:41,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:58:41,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:58:41,206 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 17:58:41,248 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:58:41,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:58:41,249 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:58:41,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:58:41,250 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:58:41,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:58:41,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:58:41,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:58:41,252 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:58:41,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:58:41,253 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:58:41,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:58:41,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:58:41,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:58:41,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:58:41,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:58:41,254 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:58:41,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:58:41,255 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:58:41,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:58:41,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:58:41,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:58:41,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:58:41,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:58:41,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:58:41,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:58:41,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:58:41,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:58:41,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:58:41,258 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:58:41,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:58:41,258 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:58:41,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:58:41,259 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_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce5762cc9246f1ac6fc3954541dad7dc4d074fedd58b1df7ab6ae71a6fb561c6 [2022-11-25 17:58:41,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:58:41,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:58:41,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:58:41,640 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:58:41,646 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:58:41,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_07_bad.i [2022-11-25 17:58:44,767 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:58:45,254 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:58:45,255 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_07_bad.i [2022-11-25 17:58:45,285 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/data/a02075406/e4c45ef59bcf42c5a17ab66a4ee9778b/FLAG68f40b353 [2022-11-25 17:58:45,302 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/data/a02075406/e4c45ef59bcf42c5a17ab66a4ee9778b [2022-11-25 17:58:45,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:58:45,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:58:45,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:58:45,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:58:45,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:58:45,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:58:45" (1/1) ... [2022-11-25 17:58:45,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b000889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:45, skipping insertion in model container [2022-11-25 17:58:45,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:58:45" (1/1) ... [2022-11-25 17:58:45,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:58:45,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:58:45,877 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:58:46,344 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:58:46,350 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:58:46,353 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:58:46,356 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:58:46,357 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:58:46,387 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:58:46,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:58:46,398 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:58:46,419 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:58:46,494 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:58:46,498 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:58:46,500 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:58:46,505 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:58:46,510 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:58:46,522 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:58:46,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:58:46,712 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:58:46,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:46 WrapperNode [2022-11-25 17:58:46,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:58:46,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:58:46,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:58:46,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:58:46,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:46" (1/1) ... [2022-11-25 17:58:46,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:46" (1/1) ... [2022-11-25 17:58:46,804 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-11-25 17:58:46,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:58:46,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:58:46,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:58:46,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:58:46,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:46" (1/1) ... [2022-11-25 17:58:46,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:46" (1/1) ... [2022-11-25 17:58:46,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:46" (1/1) ... [2022-11-25 17:58:46,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:46" (1/1) ... [2022-11-25 17:58:46,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:46" (1/1) ... [2022-11-25 17:58:46,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:46" (1/1) ... [2022-11-25 17:58:46,827 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:46" (1/1) ... [2022-11-25 17:58:46,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:46" (1/1) ... [2022-11-25 17:58:46,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:58:46,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:58:46,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:58:46,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:58:46,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:46" (1/1) ... [2022-11-25 17:58:46,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:58:46,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:58:46,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:58:46,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:58:46,918 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 17:58:46,918 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 17:58:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:58:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:58:46,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:58:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 17:58:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:58:47,073 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:58:47,075 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:58:47,337 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:58:47,343 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:58:47,343 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:58:47,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:58:47 BoogieIcfgContainer [2022-11-25 17:58:47,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:58:47,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:58:47,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:58:47,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:58:47,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:58:45" (1/3) ... [2022-11-25 17:58:47,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39407c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:58:47, skipping insertion in model container [2022-11-25 17:58:47,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:46" (2/3) ... [2022-11-25 17:58:47,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39407c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:58:47, skipping insertion in model container [2022-11-25 17:58:47,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:58:47" (3/3) ... [2022-11-25 17:58:47,354 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_07_bad.i [2022-11-25 17:58:47,381 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:58:47,381 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:58:47,449 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:58:47,457 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;@29ea12d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:58:47,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:58:47,461 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) [2022-11-25 17:58:47,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 17:58:47,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:58:47,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:58:47,470 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:58:47,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:58:47,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1654475935, now seen corresponding path program 1 times [2022-11-25 17:58:47,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:58:47,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695264027] [2022-11-25 17:58:47,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:58:47,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:58:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:47,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:58:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:47,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:58:47,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:58:47,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695264027] [2022-11-25 17:58:47,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695264027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:58:47,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:58:47,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:58:47,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846572296] [2022-11-25 17:58:47,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:58:47,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:58:47,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:58:47,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:58:47,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:58:47,949 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) [2022-11-25 17:58:47,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:58:47,996 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-11-25 17:58:47,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:58:48,000 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 [2022-11-25 17:58:48,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:58:48,008 INFO L225 Difference]: With dead ends: 39 [2022-11-25 17:58:48,009 INFO L226 Difference]: Without dead ends: 16 [2022-11-25 17:58:48,012 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 [2022-11-25 17:58:48,016 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 [2022-11-25 17:58:48,017 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] [2022-11-25 17:58:48,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-25 17:58:48,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-25 17:58:48,054 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) [2022-11-25 17:58:48,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-11-25 17:58:48,057 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2022-11-25 17:58:48,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:58:48,058 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-11-25 17:58:48,059 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) [2022-11-25 17:58:48,059 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-11-25 17:58:48,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 17:58:48,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:58:48,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:58:48,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:58:48,063 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:58:48,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:58:48,064 INFO L85 PathProgramCache]: Analyzing trace with hash 804858586, now seen corresponding path program 1 times [2022-11-25 17:58:48,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:58:48,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180506575] [2022-11-25 17:58:48,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:58:48,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:58:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:58:48,147 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:58:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:58:48,262 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:58:48,262 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:58:48,265 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 17:58:48,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 17:58:48,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:58:48,272 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:58:48,277 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:58:48,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:58:48 BoogieIcfgContainer [2022-11-25 17:58:48,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:58:48,334 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:58:48,334 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:58:48,334 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:58:48,335 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:58:47" (3/4) ... [2022-11-25 17:58:48,338 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:58:48,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:58:48,341 INFO L158 Benchmark]: Toolchain (without parser) took 3033.67ms. Allocated memory is still 148.9MB. Free memory was 114.5MB in the beginning and 109.3MB in the end (delta: 5.2MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2022-11-25 17:58:48,345 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 92.7MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:58:48,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1403.75ms. Allocated memory is still 148.9MB. Free memory was 114.0MB in the beginning and 105.4MB in the end (delta: 8.6MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. [2022-11-25 17:58:48,351 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.53ms. Allocated memory is still 148.9MB. Free memory was 105.4MB in the beginning and 102.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:58:48,355 INFO L158 Benchmark]: Boogie Preprocessor took 26.24ms. Allocated memory is still 148.9MB. Free memory was 102.6MB in the beginning and 101.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:58:48,355 INFO L158 Benchmark]: RCFGBuilder took 513.13ms. Allocated memory is still 148.9MB. Free memory was 101.2MB in the beginning and 87.9MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:58:48,356 INFO L158 Benchmark]: TraceAbstraction took 985.89ms. Allocated memory is still 148.9MB. Free memory was 86.6MB in the beginning and 109.6MB in the end (delta: -23.1MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2022-11-25 17:58:48,356 INFO L158 Benchmark]: Witness Printer took 5.48ms. Allocated memory is still 148.9MB. Free memory was 109.6MB in the beginning and 109.3MB in the end (delta: 338.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:58:48,358 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 92.7MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1403.75ms. Allocated memory is still 148.9MB. Free memory was 114.0MB in the beginning and 105.4MB in the end (delta: 8.6MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.53ms. Allocated memory is still 148.9MB. Free memory was 105.4MB in the beginning and 102.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.24ms. Allocated memory is still 148.9MB. Free memory was 102.6MB in the beginning and 101.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 513.13ms. Allocated memory is still 148.9MB. Free memory was 101.2MB in the beginning and 87.9MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 985.89ms. Allocated memory is still 148.9MB. Free memory was 86.6MB in the beginning and 109.6MB in the end (delta: -23.1MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. * Witness Printer took 5.48ms. Allocated memory is still 148.9MB. Free memory was 109.6MB in the beginning and 109.3MB in the end (delta: 338.9kB). 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: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1555, overapproximation of bitwiseAnd at line 1555. 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 int staticFive = 5; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1568] 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}, staticFive=5] [L1414] COND TRUE line != ((void *)0) [L1568] 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, staticFive=5] [L1569] CALL CWE191_Integer_Underflow__int_rand_sub_07_bad() [L1551] int data; [L1552] 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, staticFive=5] [L1553] COND TRUE staticFive==5 [L1555] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1555] 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()=4, rand()=1, rand()=5, rand()=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483648, staticFive=5] [L1555] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] COND TRUE staticFive==5 VAL [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, staticFive=5] [L1560] data - 1 VAL [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, staticFive=5] - UnprovableResult [Line: 1560]: 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: 0.8s, 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, 0.1s SatisfiabilityAnalysisTime, 0.2s 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 [2022-11-25 17:58:48,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_07_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R --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 ce5762cc9246f1ac6fc3954541dad7dc4d074fedd58b1df7ab6ae71a6fb561c6 --- 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-38b53e6 [2022-11-25 17:58:50,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:58:50,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:58:51,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:58:51,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:58:51,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:58:51,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:58:51,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:58:51,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:58:51,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:58:51,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:58:51,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:58:51,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:58:51,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:58:51,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:58:51,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:58:51,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:58:51,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:58:51,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:58:51,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:58:51,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:58:51,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:58:51,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:58:51,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:58:51,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:58:51,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:58:51,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:58:51,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:58:51,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:58:51,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:58:51,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:58:51,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:58:51,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:58:51,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:58:51,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:58:51,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:58:51,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:58:51,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:58:51,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:58:51,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:58:51,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:58:51,092 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-25 17:58:51,136 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:58:51,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:58:51,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:58:51,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:58:51,139 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:58:51,140 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:58:51,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:58:51,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:58:51,141 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:58:51,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:58:51,142 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:58:51,143 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:58:51,143 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:58:51,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:58:51,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:58:51,143 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:58:51,144 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:58:51,144 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:58:51,144 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:58:51,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:58:51,144 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:58:51,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:58:51,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:58:51,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:58:51,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:58:51,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:58:51,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:58:51,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:58:51,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:58:51,146 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:58:51,147 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:58:51,147 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:58:51,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:58:51,147 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:58:51,148 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:58:51,148 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:58:51,148 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_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce5762cc9246f1ac6fc3954541dad7dc4d074fedd58b1df7ab6ae71a6fb561c6 [2022-11-25 17:58:51,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:58:51,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:58:51,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:58:51,596 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:58:51,597 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:58:51,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_07_bad.i [2022-11-25 17:58:54,908 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:58:55,312 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:58:55,313 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_07_bad.i [2022-11-25 17:58:55,341 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/data/3aa36f53f/57312ffb52d94b3c9c9b0e99f07b9da3/FLAG8a1749017 [2022-11-25 17:58:55,360 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/data/3aa36f53f/57312ffb52d94b3c9c9b0e99f07b9da3 [2022-11-25 17:58:55,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:58:55,367 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:58:55,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:58:55,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:58:55,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:58:55,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:58:55" (1/1) ... [2022-11-25 17:58:55,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40bf0cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:55, skipping insertion in model container [2022-11-25 17:58:55,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:58:55" (1/1) ... [2022-11-25 17:58:55,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:58:55,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:58:55,852 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:58:56,526 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:58:56,532 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:58:56,533 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:58:56,542 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:58:56,543 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:58:56,574 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:58:56,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:58:56,594 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:58:56,627 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:58:56,672 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:58:56,673 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:58:56,674 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:58:56,676 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:58:56,677 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:58:56,682 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:58:56,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:58:56,830 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:58:56,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:56 WrapperNode [2022-11-25 17:58:56,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:58:56,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:58:56,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:58:56,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:58:56,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:56" (1/1) ... [2022-11-25 17:58:56,875 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:56" (1/1) ... [2022-11-25 17:58:56,899 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-11-25 17:58:56,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:58:56,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:58:56,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:58:56,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:58:56,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:56" (1/1) ... [2022-11-25 17:58:56,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:56" (1/1) ... [2022-11-25 17:58:56,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:56" (1/1) ... [2022-11-25 17:58:56,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:56" (1/1) ... [2022-11-25 17:58:56,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:56" (1/1) ... [2022-11-25 17:58:56,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:56" (1/1) ... [2022-11-25 17:58:56,937 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:56" (1/1) ... [2022-11-25 17:58:56,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:56" (1/1) ... [2022-11-25 17:58:56,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:58:56,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:58:56,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:58:56,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:58:56,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:56" (1/1) ... [2022-11-25 17:58:56,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:58:56,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:58:57,012 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:58:57,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:58:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 17:58:57,066 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 17:58:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 17:58:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:58:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:58:57,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:58:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 17:58:57,319 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:58:57,321 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:58:57,514 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:58:57,521 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:58:57,521 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:58:57,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:58:57 BoogieIcfgContainer [2022-11-25 17:58:57,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:58:57,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:58:57,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:58:57,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:58:57,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:58:55" (1/3) ... [2022-11-25 17:58:57,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e297bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:58:57, skipping insertion in model container [2022-11-25 17:58:57,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:56" (2/3) ... [2022-11-25 17:58:57,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e297bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:58:57, skipping insertion in model container [2022-11-25 17:58:57,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:58:57" (3/3) ... [2022-11-25 17:58:57,533 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_07_bad.i [2022-11-25 17:58:57,553 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:58:57,554 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:58:57,604 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:58:57,612 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;@465e9df8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:58:57,612 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:58:57,617 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) [2022-11-25 17:58:57,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 17:58:57,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:58:57,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:58:57,628 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:58:57,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:58:57,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1654475935, now seen corresponding path program 1 times [2022-11-25 17:58:57,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:58:57,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239897335] [2022-11-25 17:58:57,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:58:57,654 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 [2022-11-25 17:58:57,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:58:57,667 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:58:57,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:58:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:57,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:58:57,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:58:57,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:58:57,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:58:57,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:58:57,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239897335] [2022-11-25 17:58:57,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239897335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:58:57,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:58:57,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:58:57,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136092643] [2022-11-25 17:58:57,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:58:57,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:58:57,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:58:57,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:58:57,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:58:57,991 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) [2022-11-25 17:58:58,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:58:58,029 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-11-25 17:58:58,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:58:58,032 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 [2022-11-25 17:58:58,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:58:58,039 INFO L225 Difference]: With dead ends: 38 [2022-11-25 17:58:58,039 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 17:58:58,042 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 [2022-11-25 17:58:58,049 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 [2022-11-25 17:58:58,050 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] [2022-11-25 17:58:58,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 17:58:58,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-25 17:58:58,113 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) [2022-11-25 17:58:58,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-11-25 17:58:58,116 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-11-25 17:58:58,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:58:58,117 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-25 17:58:58,118 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) [2022-11-25 17:58:58,118 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-25 17:58:58,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 17:58:58,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:58:58,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:58:58,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:58:58,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:58:58,335 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:58:58,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:58:58,336 INFO L85 PathProgramCache]: Analyzing trace with hash 804858586, now seen corresponding path program 1 times [2022-11-25 17:58:58,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:58:58,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012772215] [2022-11-25 17:58:58,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:58:58,337 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 [2022-11-25 17:58:58,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:58:58,340 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:58:58,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:58:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:58:58,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:58:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:58:58,541 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 17:58:58,542 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:58:58,543 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 17:58:58,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 17:58:58,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/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)] Forceful destruction successful, exit code 0 [2022-11-25 17:58:58,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:58:58,750 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:58:58,754 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:58:58,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:58:58 BoogieIcfgContainer [2022-11-25 17:58:58,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:58:58,804 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:58:58,804 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:58:58,805 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:58:58,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:58:57" (3/4) ... [2022-11-25 17:58:58,808 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 17:58:58,852 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:58:58,853 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:58:58,853 INFO L158 Benchmark]: Toolchain (without parser) took 3485.92ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 49.4MB in the beginning and 44.4MB in the end (delta: 5.0MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2022-11-25 17:58:58,854 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 54.5MB. Free memory is still 32.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:58:58,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1461.78ms. Allocated memory is still 71.3MB. Free memory was 49.1MB in the beginning and 38.8MB in the end (delta: 10.3MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2022-11-25 17:58:58,855 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.26ms. Allocated memory is still 71.3MB. Free memory was 38.8MB in the beginning and 35.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:58:58,855 INFO L158 Benchmark]: Boogie Preprocessor took 41.94ms. Allocated memory is still 71.3MB. Free memory was 35.7MB in the beginning and 33.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:58:58,856 INFO L158 Benchmark]: RCFGBuilder took 580.91ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 33.7MB in the beginning and 52.2MB in the end (delta: -18.6MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-11-25 17:58:58,856 INFO L158 Benchmark]: TraceAbstraction took 1277.82ms. Allocated memory is still 86.0MB. Free memory was 51.7MB in the beginning and 46.6MB in the end (delta: 5.1MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-11-25 17:58:58,857 INFO L158 Benchmark]: Witness Printer took 48.41ms. Allocated memory is still 86.0MB. Free memory was 46.6MB in the beginning and 44.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:58:58,871 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 54.5MB. Free memory is still 32.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1461.78ms. Allocated memory is still 71.3MB. Free memory was 49.1MB in the beginning and 38.8MB in the end (delta: 10.3MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.26ms. Allocated memory is still 71.3MB. Free memory was 38.8MB in the beginning and 35.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.94ms. Allocated memory is still 71.3MB. Free memory was 35.7MB in the beginning and 33.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 580.91ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 33.7MB in the beginning and 52.2MB in the end (delta: -18.6MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1277.82ms. Allocated memory is still 86.0MB. Free memory was 51.7MB in the beginning and 46.6MB in the end (delta: 5.1MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Witness Printer took 48.41ms. Allocated memory is still 86.0MB. Free memory was 46.6MB in the beginning and 44.4MB in the end (delta: 2.2MB). 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: 1560]: 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 int staticFive = 5; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1568] 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}, staticFive=5] [L1414] COND TRUE line != ((void *)0) [L1568] 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, staticFive=5] [L1569] CALL CWE191_Integer_Underflow__int_rand_sub_07_bad() [L1551] int data; [L1552] 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, staticFive=5] [L1553] COND TRUE staticFive==5 [L1555] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1555] 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()=0, rand()=2, rand()=0, rand()=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648, staticFive=5] [L1555] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] COND TRUE staticFive==5 VAL [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, staticFive=5] [L1560] data - 1 VAL [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, staticFive=5] - UnprovableResult [Line: 1560]: 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: 1.2s, 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, 43 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! [2022-11-25 17:58:58,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e565a02-46fa-4331-bc19-7dbf5ffff30d/bin/uautomizer-ZsLfNo2U6R/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)