./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_square_06_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_square_06_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 390204d55bfd745f5df53efa561a8e8afaf72b5c45a756a8af223f9c3c791df6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 15:59:40,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:59:40,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:59:40,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:59:40,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:59:40,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:59:40,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:59:40,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:59:40,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:59:40,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:59:40,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:59:40,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:59:40,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:59:40,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:59:40,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:59:40,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:59:40,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:59:40,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:59:40,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:59:40,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:59:40,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:59:40,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:59:40,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:59:40,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:59:40,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:59:40,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:59:40,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:59:40,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:59:40,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:59:40,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:59:40,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:59:40,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:59:40,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:59:40,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:59:40,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:59:40,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:59:40,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:59:40,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:59:40,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:59:40,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:59:40,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:59:40,304 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 15:59:40,321 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:59:40,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:59:40,322 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:59:40,322 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:59:40,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:59:40,327 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:59:40,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:59:40,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:59:40,328 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:59:40,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:59:40,328 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:59:40,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:59:40,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:59:40,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:59:40,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:59:40,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:59:40,329 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 15:59:40,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:59:40,329 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:59:40,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:59:40,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:59:40,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:59:40,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:59:40,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:59:40,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:59:40,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:59:40,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:59:40,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:59:40,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:59:40,331 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:59:40,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:59:40,332 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:59:40,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:59:40,332 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:59:40,332 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_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 390204d55bfd745f5df53efa561a8e8afaf72b5c45a756a8af223f9c3c791df6 [2022-12-13 15:59:40,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:59:40,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:59:40,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:59:40,513 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:59:40,513 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:59:40,514 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_square_06_bad.i [2022-12-13 15:59:43,063 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:59:43,318 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:59:43,319 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_square_06_bad.i [2022-12-13 15:59:43,334 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/data/123f8a9f5/96787bc79a574b7d899bb8128fb05478/FLAG7bd970d86 [2022-12-13 15:59:43,642 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/data/123f8a9f5/96787bc79a574b7d899bb8128fb05478 [2022-12-13 15:59:43,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:59:43,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:59:43,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:59:43,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:59:43,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:59:43,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:59:43" (1/1) ... [2022-12-13 15:59:43,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fe8c5a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:59:43, skipping insertion in model container [2022-12-13 15:59:43,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:59:43" (1/1) ... [2022-12-13 15:59:43,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:59:43,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:59:44,048 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 15:59:44,428 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:59:44,432 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 15:59:44,434 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 15:59:44,435 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 15:59:44,436 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 15:59:44,818 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 15:59:44,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:59:44,825 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:59:44,838 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 15:59:44,867 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:59:44,868 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 15:59:44,869 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 15:59:44,870 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 15:59:44,870 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 15:59:44,879 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 15:59:44,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:59:45,120 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:59:45,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:59:45 WrapperNode [2022-12-13 15:59:45,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:59:45,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:59:45,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:59:45,122 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:59:45,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:59:45" (1/1) ... [2022-12-13 15:59:45,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:59:45" (1/1) ... [2022-12-13 15:59:45,180 INFO L138 Inliner]: procedures = 937, calls = 60, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 47 [2022-12-13 15:59:45,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:59:45,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:59:45,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:59:45,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:59:45,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:59:45" (1/1) ... [2022-12-13 15:59:45,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:59:45" (1/1) ... [2022-12-13 15:59:45,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:59:45" (1/1) ... [2022-12-13 15:59:45,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:59:45" (1/1) ... [2022-12-13 15:59:45,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:59:45" (1/1) ... [2022-12-13 15:59:45,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:59:45" (1/1) ... [2022-12-13 15:59:45,201 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:59:45" (1/1) ... [2022-12-13 15:59:45,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:59:45" (1/1) ... [2022-12-13 15:59:45,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:59:45,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:59:45,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:59:45,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:59:45,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:59:45" (1/1) ... [2022-12-13 15:59:45,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:59:45,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:59:45,237 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:59:45,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:59:45,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:59:45,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:59:45,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:59:45,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:59:45,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:59:45,269 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 15:59:45,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:59:45,270 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 15:59:45,270 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 15:59:45,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:59:45,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:59:45,379 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:59:45,380 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:59:45,476 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:59:45,481 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:59:45,482 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 15:59:45,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:59:45 BoogieIcfgContainer [2022-12-13 15:59:45,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:59:45,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:59:45,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:59:45,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:59:45,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:59:43" (1/3) ... [2022-12-13 15:59:45,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171cc6b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:59:45, skipping insertion in model container [2022-12-13 15:59:45,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:59:45" (2/3) ... [2022-12-13 15:59:45,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171cc6b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:59:45, skipping insertion in model container [2022-12-13 15:59:45,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:59:45" (3/3) ... [2022-12-13 15:59:45,490 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fscanf_square_06_bad.i [2022-12-13 15:59:45,505 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:59:45,505 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 15:59:45,542 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:59:45,548 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;@194e6fc9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:59:45,548 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 15:59:45,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 18 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 15:59:45,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 15:59:45,557 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:59:45,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:59:45,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 15:59:45,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:59:45,563 INFO L85 PathProgramCache]: Analyzing trace with hash 2097189102, now seen corresponding path program 1 times [2022-12-13 15:59:45,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:59:45,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93288106] [2022-12-13 15:59:45,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:59:45,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:59:45,660 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:59:45,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1736574625] [2022-12-13 15:59:45,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:59:45,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:59:45,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:59:45,662 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:59:45,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 15:59:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:59:45,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:59:45,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:59:45,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:59:45,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:59:45,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:59:45,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93288106] [2022-12-13 15:59:45,779 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:59:45,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736574625] [2022-12-13 15:59:45,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736574625] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:59:45,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:59:45,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:59:45,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936044020] [2022-12-13 15:59:45,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:59:45,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:59:45,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:59:45,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:59:45,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:59:45,809 INFO L87 Difference]: Start difference. First operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 18 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 15:59:45,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:59:45,828 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2022-12-13 15:59:45,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:59:45,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 15:59:45,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:59:45,835 INFO L225 Difference]: With dead ends: 39 [2022-12-13 15:59:45,835 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 15:59:45,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:59:45,840 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:59:45,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 21 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:59:45,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 15:59:45,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 15:59:45,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 15:59:45,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-12-13 15:59:45,865 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2022-12-13 15:59:45,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:59:45,866 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-12-13 15:59:45,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 15:59:45,866 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-12-13 15:59:45,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 15:59:45,866 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:59:45,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:59:45,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 15:59:46,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-13 15:59:46,067 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 15:59:46,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:59:46,068 INFO L85 PathProgramCache]: Analyzing trace with hash 2097187180, now seen corresponding path program 1 times [2022-12-13 15:59:46,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:59:46,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430106575] [2022-12-13 15:59:46,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:59:46,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:59:46,103 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:59:46,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [148634583] [2022-12-13 15:59:46,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:59:46,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:59:46,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:59:46,105 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:59:46,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 15:59:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:59:46,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 15:59:46,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:59:46,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 15:59:46,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:59:46,226 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:59:46,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:59:46,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430106575] [2022-12-13 15:59:46,227 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:59:46,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148634583] [2022-12-13 15:59:46,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148634583] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:59:46,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:59:46,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:59:46,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969415702] [2022-12-13 15:59:46,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:59:46,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:59:46,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:59:46,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:59:46,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:59:46,229 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 15:59:46,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:59:46,242 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-12-13 15:59:46,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:59:46,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 15:59:46,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:59:46,243 INFO L225 Difference]: With dead ends: 14 [2022-12-13 15:59:46,243 INFO L226 Difference]: Without dead ends: 13 [2022-12-13 15:59:46,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:59:46,245 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:59:46,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 20 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:59:46,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-12-13 15:59:46,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-12-13 15:59:46,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 15:59:46,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-12-13 15:59:46,249 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2022-12-13 15:59:46,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:59:46,249 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-12-13 15:59:46,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 15:59:46,249 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-12-13 15:59:46,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 15:59:46,250 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:59:46,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:59:46,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 15:59:46,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:59:46,452 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 15:59:46,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:59:46,453 INFO L85 PathProgramCache]: Analyzing trace with hash 588293195, now seen corresponding path program 1 times [2022-12-13 15:59:46,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:59:46,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509748562] [2022-12-13 15:59:46,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:59:46,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:59:46,514 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:59:46,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1451150864] [2022-12-13 15:59:46,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:59:46,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:59:46,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:59:46,516 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:59:46,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 15:59:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:59:46,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:59:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:59:46,619 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:59:46,619 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 15:59:46,620 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 15:59:46,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 15:59:46,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 15:59:46,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:59:46,834 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 15:59:46,847 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:59:46,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:59:46 BoogieIcfgContainer [2022-12-13 15:59:46,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:59:46,913 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:59:46,913 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:59:46,913 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:59:46,914 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:59:45" (3/4) ... [2022-12-13 15:59:46,916 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 15:59:46,949 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 15:59:46,949 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:59:46,950 INFO L158 Benchmark]: Toolchain (without parser) took 3301.51ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 109.0MB in the beginning and 64.8MB in the end (delta: 44.2MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. [2022-12-13 15:59:46,950 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 123.7MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:59:46,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1469.76ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 108.6MB in the beginning and 144.5MB in the end (delta: -35.9MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. [2022-12-13 15:59:46,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.70ms. Allocated memory is still 180.4MB. Free memory was 144.5MB in the beginning and 141.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 15:59:46,951 INFO L158 Benchmark]: Boogie Preprocessor took 23.82ms. Allocated memory is still 180.4MB. Free memory was 141.4MB in the beginning and 139.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:59:46,952 INFO L158 Benchmark]: RCFGBuilder took 277.71ms. Allocated memory is still 180.4MB. Free memory was 139.3MB in the beginning and 125.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 15:59:46,952 INFO L158 Benchmark]: TraceAbstraction took 1426.61ms. Allocated memory is still 180.4MB. Free memory was 124.6MB in the beginning and 66.9MB in the end (delta: 57.7MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2022-12-13 15:59:46,953 INFO L158 Benchmark]: Witness Printer took 36.68ms. Allocated memory is still 180.4MB. Free memory was 66.9MB in the beginning and 64.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:59:46,955 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 123.7MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1469.76ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 108.6MB in the beginning and 144.5MB in the end (delta: -35.9MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.70ms. Allocated memory is still 180.4MB. Free memory was 144.5MB in the beginning and 141.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.82ms. Allocated memory is still 180.4MB. Free memory was 141.4MB in the beginning and 139.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 277.71ms. Allocated memory is still 180.4MB. Free memory was 139.3MB in the beginning and 125.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1426.61ms. Allocated memory is still 180.4MB. Free memory was 124.6MB in the beginning and 66.9MB in the end (delta: 57.7MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Witness Printer took 36.68ms. Allocated memory is still 180.4MB. Free memory was 66.9MB in the beginning and 64.8MB in the end (delta: 2.1MB). 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: 1844]: 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); [L1832] static const int STATIC_CONST_FIVE = 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, STATIC_CONST_FIVE=5] [L1852] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}, STATIC_CONST_FIVE=5] [L1414] COND TRUE line != ((void *)0) [L1852] RET printLine("Calling bad()...") VAL [\old(argc)=36, argc=36, argv={38:37}, argv={38:37}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FIVE=5] [L1853] CALL CWE190_Integer_Overflow__int_fscanf_square_06_bad() [L1835] int data; [L1836] data = 0 VAL [data={4:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FIVE=5] [L1837] COND TRUE STATIC_CONST_FIVE==5 [L1841] COND TRUE STATIC_CONST_FIVE==5 [L1844] EXPR \read(data) [L1844] EXPR \read(data) VAL [\read(data)=-429496728, \read(data)=-429496728, data={4:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FIVE=5] [L1844] data * data VAL [\read(data)=-429496728, \read(data)=-429496728, data={4:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FIVE=5] - UnprovableResult [Line: 1844]: 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, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 32 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 SizeOfPredicates, 3 NumberOfNonLiveVariables, 219 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 15:59:46,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99eaa881-8273-48c2-8622-e5f60ed0f812/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)