./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a --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 e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 --- 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-b5237d8 [2022-11-21 17:13:36,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:13:36,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:13:36,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:13:36,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:13:36,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:13:36,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:13:36,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:13:36,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:13:36,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:13:36,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:13:36,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:13:36,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:13:36,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:13:36,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:13:36,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:13:36,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:13:36,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:13:36,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:13:36,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:13:36,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:13:36,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:13:36,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:13:36,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:13:36,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:13:36,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:13:36,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:13:36,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:13:36,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:13:36,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:13:36,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:13:36,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:13:36,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:13:36,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:13:36,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:13:36,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:13:36,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:13:36,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:13:36,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:13:36,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:13:36,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:13:36,328 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-21 17:13:36,374 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:13:36,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:13:36,376 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:13:36,376 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:13:36,377 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:13:36,378 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:13:36,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:13:36,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:13:36,380 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:13:36,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:13:36,381 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:13:36,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:13:36,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:13:36,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:13:36,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:13:36,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:13:36,384 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 17:13:36,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:13:36,384 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:13:36,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:13:36,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:13:36,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:13:36,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:13:36,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:13:36,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:13:36,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:13:36,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:13:36,388 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:13:36,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:13:36,389 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:13:36,389 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:13:36,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:13:36,390 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 [2022-11-21 17:13:36,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:13:36,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:13:36,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:13:36,806 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:13:36,806 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:13:36,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2022-11-21 17:13:39,971 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:13:40,373 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:13:40,374 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2022-11-21 17:13:40,408 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/data/d4f9b9da9/505bdc7857cc432988f1924ff5e76bf3/FLAG85f78afbc [2022-11-21 17:13:40,425 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/data/d4f9b9da9/505bdc7857cc432988f1924ff5e76bf3 [2022-11-21 17:13:40,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:13:40,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:13:40,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:13:40,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:13:40,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:13:40,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:13:40" (1/1) ... [2022-11-21 17:13:40,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1806c8d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:40, skipping insertion in model container [2022-11-21 17:13:40,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:13:40" (1/1) ... [2022-11-21 17:13:40,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:13:40,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:13:40,902 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 17:13:41,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:13:41,582 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:13:41,615 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 17:13:41,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:13:41,915 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:13:41,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:41 WrapperNode [2022-11-21 17:13:41,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:13:41,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:13:41,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:13:41,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:13:41,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:41" (1/1) ... [2022-11-21 17:13:41,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:41" (1/1) ... [2022-11-21 17:13:42,046 INFO L138 Inliner]: procedures = 499, calls = 60, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2022-11-21 17:13:42,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:13:42,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:13:42,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:13:42,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:13:42,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:41" (1/1) ... [2022-11-21 17:13:42,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:41" (1/1) ... [2022-11-21 17:13:42,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:41" (1/1) ... [2022-11-21 17:13:42,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:41" (1/1) ... [2022-11-21 17:13:42,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:41" (1/1) ... [2022-11-21 17:13:42,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:41" (1/1) ... [2022-11-21 17:13:42,115 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:41" (1/1) ... [2022-11-21 17:13:42,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:41" (1/1) ... [2022-11-21 17:13:42,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:13:42,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:13:42,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:13:42,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:13:42,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:41" (1/1) ... [2022-11-21 17:13:42,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:13:42,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:13:42,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:13:42,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:13:42,221 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 17:13:42,221 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 17:13:42,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:13:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:13:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:13:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:13:42,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:13:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:13:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 17:13:42,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:13:42,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:13:42,391 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:13:42,393 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:13:42,582 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:13:42,588 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:13:42,588 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:13:42,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:13:42 BoogieIcfgContainer [2022-11-21 17:13:42,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:13:42,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:13:42,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:13:42,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:13:42,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:13:40" (1/3) ... [2022-11-21 17:13:42,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71a7bfab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:13:42, skipping insertion in model container [2022-11-21 17:13:42,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:41" (2/3) ... [2022-11-21 17:13:42,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71a7bfab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:13:42, skipping insertion in model container [2022-11-21 17:13:42,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:13:42" (3/3) ... [2022-11-21 17:13:42,614 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2022-11-21 17:13:42,651 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:13:42,652 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-21 17:13:42,723 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:13:42,732 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;@4a057d78, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:13:42,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-21 17:13:42,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 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) [2022-11-21 17:13:42,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 17:13:42,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:13:42,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:13:42,752 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:13:42,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:13:42,759 INFO L85 PathProgramCache]: Analyzing trace with hash 51472802, now seen corresponding path program 1 times [2022-11-21 17:13:42,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:13:42,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019870487] [2022-11-21 17:13:42,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:13:42,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:13:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:13:43,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:13:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:13:43,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:13:43,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:13:43,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019870487] [2022-11-21 17:13:43,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019870487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:13:43,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:13:43,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:13:43,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649258823] [2022-11-21 17:13:43,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:13:43,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:13:43,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:13:43,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:13:43,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:13:43,642 INFO L87 Difference]: Start difference. First operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 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 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-11-21 17:13:43,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:13:43,726 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2022-11-21 17:13:43,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:13:43,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 [2022-11-21 17:13:43,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:13:43,738 INFO L225 Difference]: With dead ends: 21 [2022-11-21 17:13:43,739 INFO L226 Difference]: Without dead ends: 13 [2022-11-21 17:13:43,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:13:43,748 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:13:43,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 38 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:13:43,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-21 17:13:43,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-21 17:13:43,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.2) internal successors, (12), 10 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) [2022-11-21 17:13:43,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-21 17:13:43,788 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 11 [2022-11-21 17:13:43,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:13:43,789 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-21 17:13:43,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-11-21 17:13:43,790 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-21 17:13:43,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 17:13:43,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:13:43,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:13:43,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:13:43,791 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:13:43,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:13:43,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1595656915, now seen corresponding path program 1 times [2022-11-21 17:13:43,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:13:43,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224962387] [2022-11-21 17:13:43,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:13:43,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:13:43,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:13:43,832 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:13:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:13:43,886 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:13:43,886 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 17:13:43,888 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-21 17:13:43,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-21 17:13:43,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:13:43,894 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-21 17:13:43,898 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:13:43,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:13:43 BoogieIcfgContainer [2022-11-21 17:13:43,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:13:43,926 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:13:43,926 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:13:43,927 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:13:43,927 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:13:42" (3/4) ... [2022-11-21 17:13:43,931 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 17:13:43,931 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:13:43,932 INFO L158 Benchmark]: Toolchain (without parser) took 3501.77ms. Allocated memory was 140.5MB in the beginning and 180.4MB in the end (delta: 39.8MB). Free memory was 95.3MB in the beginning and 125.4MB in the end (delta: -30.1MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2022-11-21 17:13:43,932 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 140.5MB. Free memory was 84.6MB in the beginning and 84.5MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:13:43,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1487.09ms. Allocated memory was 140.5MB in the beginning and 180.4MB in the end (delta: 39.8MB). Free memory was 95.3MB in the beginning and 140.7MB in the end (delta: -45.3MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. [2022-11-21 17:13:43,934 INFO L158 Benchmark]: Boogie Procedure Inliner took 130.32ms. Allocated memory is still 180.4MB. Free memory was 140.7MB in the beginning and 137.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 17:13:43,934 INFO L158 Benchmark]: Boogie Preprocessor took 71.43ms. Allocated memory is still 180.4MB. Free memory was 137.4MB in the beginning and 135.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:13:43,935 INFO L158 Benchmark]: RCFGBuilder took 462.17ms. Allocated memory is still 180.4MB. Free memory was 135.4MB in the beginning and 120.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 17:13:43,935 INFO L158 Benchmark]: TraceAbstraction took 1333.12ms. Allocated memory is still 180.4MB. Free memory was 120.7MB in the beginning and 125.4MB in the end (delta: -4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:13:43,936 INFO L158 Benchmark]: Witness Printer took 4.76ms. Allocated memory is still 180.4MB. Free memory is still 125.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:13:43,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 140.5MB. Free memory was 84.6MB in the beginning and 84.5MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1487.09ms. Allocated memory was 140.5MB in the beginning and 180.4MB in the end (delta: 39.8MB). Free memory was 95.3MB in the beginning and 140.7MB in the end (delta: -45.3MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 130.32ms. Allocated memory is still 180.4MB. Free memory was 140.7MB in the beginning and 137.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.43ms. Allocated memory is still 180.4MB. Free memory was 137.4MB in the beginning and 135.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 462.17ms. Allocated memory is still 180.4MB. Free memory was 135.4MB in the beginning and 120.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1333.12ms. Allocated memory is still 180.4MB. Free memory was 120.7MB in the beginning and 125.4MB in the end (delta: -4.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.76ms. Allocated memory is still 180.4MB. Free memory is still 125.4MB. 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: 1562]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1556, overapproximation of bitwiseAnd at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] 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}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=3221225478, argc=3221225478, argv={3221225475:3221225479}, argv={3221225475:3221225479}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, data={5:0}, dataPtr1={5:0}, dataPtr2={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=3, rand()=2147483647, rand()=65535, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] *dataPtr1 = data [L1560] EXPR \read(*dataPtr2) [L1560] int data = *dataPtr2; [L1562] --data VAL [data={5:0}, data=-2147483648, data=-2147483648, dataPtr1={5:0}, dataPtr2={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1562]: 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, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 18 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.6s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 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 [2022-11-21 17:13:43,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a --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 e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 --- 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-b5237d8 [2022-11-21 17:13:46,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:13:46,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:13:46,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:13:46,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:13:46,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:13:46,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:13:46,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:13:46,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:13:46,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:13:46,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:13:46,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:13:46,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:13:46,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:13:46,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:13:46,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:13:46,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:13:46,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:13:46,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:13:46,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:13:46,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:13:46,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:13:46,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:13:46,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:13:46,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:13:46,886 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:13:46,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:13:46,887 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:13:46,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:13:46,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:13:46,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:13:46,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:13:46,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:13:46,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:13:46,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:13:46,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:13:46,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:13:46,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:13:46,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:13:46,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:13:46,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:13:46,911 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-21 17:13:46,936 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:13:46,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:13:46,937 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:13:46,937 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:13:46,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:13:46,938 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:13:46,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:13:46,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:13:46,939 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:13:46,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:13:46,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:13:46,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:13:46,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:13:46,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:13:46,941 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 17:13:46,941 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 17:13:46,942 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 17:13:46,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:13:46,942 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:13:46,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:13:46,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:13:46,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:13:46,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:13:46,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:13:46,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:13:46,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:13:46,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:13:46,944 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 17:13:46,945 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 17:13:46,945 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:13:46,945 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:13:46,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:13:46,946 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 17:13:46,946 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 [2022-11-21 17:13:47,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:13:47,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:13:47,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:13:47,384 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:13:47,384 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:13:47,387 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2022-11-21 17:13:50,584 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:13:51,047 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:13:51,048 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2022-11-21 17:13:51,123 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/data/c8b1061a3/cc38382bc0ba46c3ae451e92c114ad15/FLAGe9fab68d9 [2022-11-21 17:13:51,142 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/data/c8b1061a3/cc38382bc0ba46c3ae451e92c114ad15 [2022-11-21 17:13:51,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:13:51,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:13:51,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:13:51,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:13:51,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:13:51,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:13:51" (1/1) ... [2022-11-21 17:13:51,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5174d327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:51, skipping insertion in model container [2022-11-21 17:13:51,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:13:51" (1/1) ... [2022-11-21 17:13:51,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:13:51,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:13:51,748 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 17:13:52,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:13:52,279 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:13:52,317 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 17:13:52,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:13:52,510 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:13:52,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:52 WrapperNode [2022-11-21 17:13:52,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:13:52,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:13:52,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:13:52,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:13:52,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:52" (1/1) ... [2022-11-21 17:13:52,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:52" (1/1) ... [2022-11-21 17:13:52,605 INFO L138 Inliner]: procedures = 504, calls = 60, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2022-11-21 17:13:52,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:13:52,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:13:52,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:13:52,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:13:52,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:52" (1/1) ... [2022-11-21 17:13:52,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:52" (1/1) ... [2022-11-21 17:13:52,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:52" (1/1) ... [2022-11-21 17:13:52,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:52" (1/1) ... [2022-11-21 17:13:52,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:52" (1/1) ... [2022-11-21 17:13:52,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:52" (1/1) ... [2022-11-21 17:13:52,642 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:52" (1/1) ... [2022-11-21 17:13:52,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:52" (1/1) ... [2022-11-21 17:13:52,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:13:52,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:13:52,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:13:52,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:13:52,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:52" (1/1) ... [2022-11-21 17:13:52,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:13:52,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:13:52,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:13:52,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:13:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 17:13:52,752 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 17:13:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:13:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 17:13:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:13:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:13:52,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:13:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-21 17:13:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:13:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-21 17:13:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 17:13:52,956 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:13:52,958 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:13:53,185 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:13:53,191 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:13:53,192 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:13:53,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:13:53 BoogieIcfgContainer [2022-11-21 17:13:53,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:13:53,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:13:53,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:13:53,200 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:13:53,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:13:51" (1/3) ... [2022-11-21 17:13:53,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20593fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:13:53, skipping insertion in model container [2022-11-21 17:13:53,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:13:52" (2/3) ... [2022-11-21 17:13:53,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20593fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:13:53, skipping insertion in model container [2022-11-21 17:13:53,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:13:53" (3/3) ... [2022-11-21 17:13:53,219 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2022-11-21 17:13:53,238 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:13:53,239 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-21 17:13:53,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20593fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:13:53, skipping insertion in model container [2022-11-21 17:13:53,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:13:53,241 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:13:53,241 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:13:53,241 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:13:53,242 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:13:53" (3/3) ... [2022-11-21 17:13:53,245 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 17:13:53,252 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-21 17:13:53,261 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-21 17:13:53,262 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-21 17:13:53,262 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 17:13:53,262 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 17:13:53,313 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:13:53,313 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:13:53,315 INFO L158 Benchmark]: Toolchain (without parser) took 2166.82ms. Allocated memory is still 83.9MB. Free memory was 63.5MB in the beginning and 39.4MB in the end (delta: 24.1MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2022-11-21 17:13:53,315 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 60.8MB. Free memory was 39.2MB in the beginning and 39.2MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:13:53,316 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1361.96ms. Allocated memory is still 83.9MB. Free memory was 63.5MB in the beginning and 42.3MB in the end (delta: 21.2MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2022-11-21 17:13:53,316 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.12ms. Allocated memory is still 83.9MB. Free memory was 42.3MB in the beginning and 39.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 17:13:53,317 INFO L158 Benchmark]: Boogie Preprocessor took 40.97ms. Allocated memory is still 83.9MB. Free memory was 38.8MB in the beginning and 37.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:13:53,317 INFO L158 Benchmark]: RCFGBuilder took 545.66ms. Allocated memory is still 83.9MB. Free memory was 37.0MB in the beginning and 45.3MB in the end (delta: -8.2MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-11-21 17:13:53,318 INFO L158 Benchmark]: TraceAbstraction took 43.95ms. Allocated memory is still 83.9MB. Free memory was 44.4MB in the beginning and 42.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:13:53,318 INFO L158 Benchmark]: Witness Printer took 72.47ms. Allocated memory is still 83.9MB. Free memory was 42.4MB in the beginning and 39.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:13:53,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 60.8MB. Free memory was 39.2MB in the beginning and 39.2MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1361.96ms. Allocated memory is still 83.9MB. Free memory was 63.5MB in the beginning and 42.3MB in the end (delta: 21.2MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.12ms. Allocated memory is still 83.9MB. Free memory was 42.3MB in the beginning and 39.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.97ms. Allocated memory is still 83.9MB. Free memory was 38.8MB in the beginning and 37.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 545.66ms. Allocated memory is still 83.9MB. Free memory was 37.0MB in the beginning and 45.3MB in the end (delta: -8.2MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * TraceAbstraction took 43.95ms. Allocated memory is still 83.9MB. Free memory was 44.4MB in the beginning and 42.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 72.47ms. Allocated memory is still 83.9MB. Free memory was 42.4MB in the beginning and 39.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2022-11-21 17:13:53,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15f4062a-e8b0-4f90-8294-cfd6b8339bb1/bin/uautomizer-vX5HgA9Q3a/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 Result: TRUE