./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_03_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/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_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_03_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/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_ee91bc0f-0825-44aa-aea8-7e479f19fb91/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 d8f3c7386aa3718504fcc3b2b50e65ba74ff6ff0cfd4bcf487340bf120485b1d --- 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 18:42:41,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:42:41,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:42:41,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:42:41,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:42:41,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:42:41,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:42:41,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:42:41,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:42:41,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:42:41,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:42:41,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:42:41,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:42:41,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:42:41,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:42:41,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:42:41,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:42:41,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:42:41,542 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:42:41,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:42:41,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:42:41,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:42:41,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:42:41,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:42:41,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:42:41,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:42:41,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:42:41,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:42:41,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:42:41,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:42:41,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:42:41,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:42:41,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:42:41,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:42:41,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:42:41,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:42:41,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:42:41,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:42:41,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:42:41,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:42:41,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:42:41,562 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 18:42:41,582 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:42:41,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:42:41,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:42:41,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:42:41,584 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:42:41,584 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:42:41,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:42:41,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:42:41,585 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:42:41,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:42:41,585 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:42:41,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:42:41,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:42:41,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:42:41,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:42:41,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:42:41,587 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 18:42:41,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:42:41,587 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:42:41,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:42:41,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:42:41,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:42:41,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:42:41,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:42:41,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:42:41,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:42:41,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:42:41,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:42:41,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:42:41,589 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:42:41,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:42:41,589 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:42:41,589 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:42:41,589 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:42:41,590 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_ee91bc0f-0825-44aa-aea8-7e479f19fb91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8f3c7386aa3718504fcc3b2b50e65ba74ff6ff0cfd4bcf487340bf120485b1d [2022-12-13 18:42:41,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:42:41,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:42:41,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:42:41,822 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:42:41,822 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:42:41,823 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_03_bad.i [2022-12-13 18:42:44,538 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:42:44,805 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:42:44,805 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_03_bad.i [2022-12-13 18:42:44,823 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/data/ab588ecb2/f55eedc4f57840ca8e36e14181aa14f4/FLAG457d32279 [2022-12-13 18:42:44,838 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/data/ab588ecb2/f55eedc4f57840ca8e36e14181aa14f4 [2022-12-13 18:42:44,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:42:44,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:42:44,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:42:44,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:42:44,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:42:44,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:42:44" (1/1) ... [2022-12-13 18:42:44,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aaf74c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:44, skipping insertion in model container [2022-12-13 18:42:44,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:42:44" (1/1) ... [2022-12-13 18:42:44,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:42:44,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:42:45,145 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:42:45,446 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:42:45,450 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:42:45,451 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:42:45,453 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:42:45,453 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:42:45,473 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:42:45,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:42:45,481 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:42:45,494 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:42:45,525 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:42:45,526 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:42:45,527 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:42:45,529 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:42:45,529 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:42:45,533 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:42:45,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:42:45,624 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:42:45,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:45 WrapperNode [2022-12-13 18:42:45,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:42:45,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:42:45,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:42:45,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:42:45,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:45" (1/1) ... [2022-12-13 18:42:45,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:45" (1/1) ... [2022-12-13 18:42:45,675 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-13 18:42:45,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:42:45,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:42:45,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:42:45,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:42:45,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:45" (1/1) ... [2022-12-13 18:42:45,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:45" (1/1) ... [2022-12-13 18:42:45,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:45" (1/1) ... [2022-12-13 18:42:45,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:45" (1/1) ... [2022-12-13 18:42:45,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:45" (1/1) ... [2022-12-13 18:42:45,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:45" (1/1) ... [2022-12-13 18:42:45,697 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:45" (1/1) ... [2022-12-13 18:42:45,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:45" (1/1) ... [2022-12-13 18:42:45,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:42:45,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:42:45,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:42:45,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:42:45,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:45" (1/1) ... [2022-12-13 18:42:45,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:42:45,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:42:45,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:42:45,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:42:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 18:42:45,763 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 18:42:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:42:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:42:45,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:42:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 18:42:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:42:45,882 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:42:45,884 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:42:46,002 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:42:46,007 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:42:46,008 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 18:42:46,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:42:46 BoogieIcfgContainer [2022-12-13 18:42:46,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:42:46,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:42:46,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:42:46,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:42:46,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:42:44" (1/3) ... [2022-12-13 18:42:46,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759b0c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:42:46, skipping insertion in model container [2022-12-13 18:42:46,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:45" (2/3) ... [2022-12-13 18:42:46,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759b0c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:42:46, skipping insertion in model container [2022-12-13 18:42:46,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:42:46" (3/3) ... [2022-12-13 18:42:46,018 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_03_bad.i [2022-12-13 18:42:46,034 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:42:46,034 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:42:46,078 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:42:46,084 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;@6966fbab, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:42:46,084 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 18:42:46,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.375) internal successors, (22), 18 states have internal predecessors, (22), 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 18:42:46,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 18:42:46,095 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:42:46,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:42:46,096 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:42:46,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:42:46,100 INFO L85 PathProgramCache]: Analyzing trace with hash 2051308032, now seen corresponding path program 1 times [2022-12-13 18:42:46,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:42:46,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138007057] [2022-12-13 18:42:46,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:42:46,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:42:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:46,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:42:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:46,298 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 18:42:46,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:42:46,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138007057] [2022-12-13 18:42:46,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138007057] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:42:46,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:42:46,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:42:46,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796503831] [2022-12-13 18:42:46,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:42:46,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:42:46,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:42:46,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:42:46,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:42:46,333 INFO L87 Difference]: Start difference. First operand has 22 states, 16 states have (on average 1.375) internal successors, (22), 18 states have internal predecessors, (22), 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 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 18:42:46,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:42:46,349 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2022-12-13 18:42:46,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 18:42:46,350 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 10 [2022-12-13 18:42:46,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:42:46,356 INFO L225 Difference]: With dead ends: 37 [2022-12-13 18:42:46,356 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 18:42:46,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:42:46,362 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:42:46,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:42:46,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 18:42:46,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 18:42:46,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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 18:42:46,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-12-13 18:42:46,391 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2022-12-13 18:42:46,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:42:46,391 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-12-13 18:42:46,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 18:42:46,392 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-12-13 18:42:46,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 18:42:46,392 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:42:46,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:42:46,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:42:46,393 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:42:46,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:42:46,394 INFO L85 PathProgramCache]: Analyzing trace with hash -83247131, now seen corresponding path program 1 times [2022-12-13 18:42:46,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:42:46,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859183848] [2022-12-13 18:42:46,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:42:46,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:42:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:42:46,446 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:42:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:42:46,514 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:42:46,515 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 18:42:46,516 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 18:42:46,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 18:42:46,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:42:46,521 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 18:42:46,525 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:42:46,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:42:46 BoogieIcfgContainer [2022-12-13 18:42:46,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:42:46,542 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:42:46,542 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:42:46,542 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:42:46,543 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:42:46" (3/4) ... [2022-12-13 18:42:46,545 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 18:42:46,545 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:42:46,546 INFO L158 Benchmark]: Toolchain (without parser) took 1704.19ms. Allocated memory is still 172.0MB. Free memory was 132.7MB in the beginning and 82.1MB in the end (delta: 50.5MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2022-12-13 18:42:46,546 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 100.7MB. Free memory was 53.2MB in the beginning and 53.1MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:42:46,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 781.93ms. Allocated memory is still 172.0MB. Free memory was 132.7MB in the beginning and 132.5MB in the end (delta: 178.5kB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. [2022-12-13 18:42:46,547 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.27ms. Allocated memory is still 172.0MB. Free memory was 132.5MB in the beginning and 128.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:42:46,547 INFO L158 Benchmark]: Boogie Preprocessor took 24.59ms. Allocated memory is still 172.0MB. Free memory was 128.7MB in the beginning and 127.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:42:46,547 INFO L158 Benchmark]: RCFGBuilder took 308.46ms. Allocated memory is still 172.0MB. Free memory was 127.4MB in the beginning and 114.0MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 18:42:46,548 INFO L158 Benchmark]: TraceAbstraction took 529.82ms. Allocated memory is still 172.0MB. Free memory was 113.5MB in the beginning and 82.5MB in the end (delta: 30.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-13 18:42:46,548 INFO L158 Benchmark]: Witness Printer took 3.11ms. Allocated memory is still 172.0MB. Free memory was 82.5MB in the beginning and 82.1MB in the end (delta: 397.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:42:46,550 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 100.7MB. Free memory was 53.2MB in the beginning and 53.1MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 781.93ms. Allocated memory is still 172.0MB. Free memory was 132.7MB in the beginning and 132.5MB in the end (delta: 178.5kB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.27ms. Allocated memory is still 172.0MB. Free memory was 132.5MB in the beginning and 128.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.59ms. Allocated memory is still 172.0MB. Free memory was 128.7MB in the beginning and 127.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 308.46ms. Allocated memory is still 172.0MB. Free memory was 127.4MB in the beginning and 114.0MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 529.82ms. Allocated memory is still 172.0MB. Free memory was 113.5MB in the beginning and 82.5MB in the end (delta: 30.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 3.11ms. Allocated memory is still 172.0MB. Free memory was 82.5MB in the beginning and 82.1MB in the end (delta: 397.2kB). 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: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1554, overapproximation of bitwiseAnd at line 1554. 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] [L1568] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=2147516418, argc=2147516418, argv={2147516417:2147516420}, argv={2147516417:2147516420}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_rand_predec_03_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=65537, rand()=2, rand()=2147483647, rand()=4, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1559] --data VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1559]: 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: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 18:42:46,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/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_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_03_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/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 d8f3c7386aa3718504fcc3b2b50e65ba74ff6ff0cfd4bcf487340bf120485b1d --- 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 18:42:48,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:42:48,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:42:48,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:42:48,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:42:48,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:42:48,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:42:48,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:42:48,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:42:48,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:42:48,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:42:48,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:42:48,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:42:48,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:42:48,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:42:48,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:42:48,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:42:48,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:42:48,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:42:48,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:42:48,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:42:48,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:42:48,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:42:48,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:42:48,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:42:48,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:42:48,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:42:48,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:42:48,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:42:48,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:42:48,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:42:48,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:42:48,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:42:48,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:42:48,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:42:48,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:42:48,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:42:48,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:42:48,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:42:48,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:42:48,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:42:48,377 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 18:42:48,395 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:42:48,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:42:48,396 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:42:48,396 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:42:48,397 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:42:48,397 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:42:48,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:42:48,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:42:48,398 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:42:48,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:42:48,399 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:42:48,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:42:48,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:42:48,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:42:48,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:42:48,399 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 18:42:48,400 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 18:42:48,400 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 18:42:48,400 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 18:42:48,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:42:48,400 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:42:48,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:42:48,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:42:48,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:42:48,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:42:48,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:42:48,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:42:48,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:42:48,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:42:48,402 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 18:42:48,402 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 18:42:48,403 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:42:48,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:42:48,403 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:42:48,403 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:42:48,403 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 18:42:48,403 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:42:48,404 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_ee91bc0f-0825-44aa-aea8-7e479f19fb91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8f3c7386aa3718504fcc3b2b50e65ba74ff6ff0cfd4bcf487340bf120485b1d [2022-12-13 18:42:48,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:42:48,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:42:48,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:42:48,652 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:42:48,652 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:42:48,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_03_bad.i [2022-12-13 18:42:51,248 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:42:51,467 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:42:51,467 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_03_bad.i [2022-12-13 18:42:51,481 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/data/b48150dd2/ac4844e189c442bcb50cf854fb440889/FLAG73aec6faf [2022-12-13 18:42:51,492 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/data/b48150dd2/ac4844e189c442bcb50cf854fb440889 [2022-12-13 18:42:51,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:42:51,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:42:51,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:42:51,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:42:51,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:42:51,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:42:51" (1/1) ... [2022-12-13 18:42:51,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5205d475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:51, skipping insertion in model container [2022-12-13 18:42:51,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:42:51" (1/1) ... [2022-12-13 18:42:51,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:42:51,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:42:51,807 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:42:52,259 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:42:52,264 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:42:52,265 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:42:52,268 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:42:52,269 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:42:52,292 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:42:52,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:42:52,307 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:42:52,328 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:42:52,380 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:42:52,381 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:42:52,383 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:42:52,385 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:42:52,386 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:42:52,391 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:42:52,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:42:52,501 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:42:52,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:52 WrapperNode [2022-12-13 18:42:52,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:42:52,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:42:52,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:42:52,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:42:52,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:52" (1/1) ... [2022-12-13 18:42:52,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:52" (1/1) ... [2022-12-13 18:42:52,549 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-13 18:42:52,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:42:52,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:42:52,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:42:52,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:42:52,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:52" (1/1) ... [2022-12-13 18:42:52,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:52" (1/1) ... [2022-12-13 18:42:52,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:52" (1/1) ... [2022-12-13 18:42:52,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:52" (1/1) ... [2022-12-13 18:42:52,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:52" (1/1) ... [2022-12-13 18:42:52,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:52" (1/1) ... [2022-12-13 18:42:52,571 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:52" (1/1) ... [2022-12-13 18:42:52,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:52" (1/1) ... [2022-12-13 18:42:52,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:42:52,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:42:52,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:42:52,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:42:52,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:52" (1/1) ... [2022-12-13 18:42:52,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:42:52,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:42:52,598 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:42:52,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:42:52,631 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 18:42:52,631 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 18:42:52,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 18:42:52,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:42:52,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:42:52,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:42:52,632 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 18:42:52,744 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:42:52,745 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:42:52,845 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:42:52,850 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:42:52,850 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 18:42:52,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:42:52 BoogieIcfgContainer [2022-12-13 18:42:52,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:42:52,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:42:52,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:42:52,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:42:52,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:42:51" (1/3) ... [2022-12-13 18:42:52,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b91f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:42:52, skipping insertion in model container [2022-12-13 18:42:52,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:42:52" (2/3) ... [2022-12-13 18:42:52,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b91f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:42:52, skipping insertion in model container [2022-12-13 18:42:52,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:42:52" (3/3) ... [2022-12-13 18:42:52,857 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_03_bad.i [2022-12-13 18:42:52,871 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:42:52,871 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:42:52,903 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:42:52,907 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;@309b182d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:42:52,907 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 18:42:52,910 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.375) internal successors, (22), 18 states have internal predecessors, (22), 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 18:42:52,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 18:42:52,915 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:42:52,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:42:52,916 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:42:52,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:42:52,920 INFO L85 PathProgramCache]: Analyzing trace with hash 2051308032, now seen corresponding path program 1 times [2022-12-13 18:42:52,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 18:42:52,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72505975] [2022-12-13 18:42:52,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:42:52,929 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 18:42:52,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 18:42:52,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 18:42:52,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 18:42:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:53,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 18:42:53,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:42:53,036 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 18:42:53,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:42:53,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 18:42:53,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72505975] [2022-12-13 18:42:53,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72505975] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:42:53,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:42:53,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:42:53,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121771764] [2022-12-13 18:42:53,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:42:53,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:42:53,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 18:42:53,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:42:53,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:42:53,063 INFO L87 Difference]: Start difference. First operand has 22 states, 16 states have (on average 1.375) internal successors, (22), 18 states have internal predecessors, (22), 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 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 18:42:53,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:42:53,076 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2022-12-13 18:42:53,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 18:42:53,077 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 10 [2022-12-13 18:42:53,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:42:53,082 INFO L225 Difference]: With dead ends: 36 [2022-12-13 18:42:53,082 INFO L226 Difference]: Without dead ends: 13 [2022-12-13 18:42:53,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:42:53,086 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:42:53,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:42:53,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-12-13 18:42:53,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-12-13 18:42:53,107 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) [2022-12-13 18:42:53,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-12-13 18:42:53,108 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2022-12-13 18:42:53,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:42:53,109 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-12-13 18:42:53,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 18:42:53,109 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-12-13 18:42:53,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 18:42:53,109 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:42:53,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:42:53,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 18:42:53,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 18:42:53,311 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:42:53,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:42:53,313 INFO L85 PathProgramCache]: Analyzing trace with hash -83247131, now seen corresponding path program 1 times [2022-12-13 18:42:53,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 18:42:53,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294138953] [2022-12-13 18:42:53,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:42:53,317 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 18:42:53,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 18:42:53,321 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 18:42:53,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 18:42:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:42:53,512 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:42:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:42:53,558 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 18:42:53,559 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 18:42:53,560 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 18:42:53,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 18:42:53,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 18:42:53,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 18:42:53,772 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 18:42:53,794 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:42:53,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:42:53 BoogieIcfgContainer [2022-12-13 18:42:53,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:42:53,860 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:42:53,860 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:42:53,861 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:42:53,862 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:42:52" (3/4) ... [2022-12-13 18:42:53,880 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 18:42:53,959 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 18:42:53,959 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:42:53,960 INFO L158 Benchmark]: Toolchain (without parser) took 2464.53ms. Allocated memory is still 96.5MB. Free memory was 75.9MB in the beginning and 64.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2022-12-13 18:42:53,960 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory was 39.2MB in the beginning and 39.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:42:53,961 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1006.09ms. Allocated memory is still 96.5MB. Free memory was 75.9MB in the beginning and 67.8MB in the end (delta: 8.1MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. [2022-12-13 18:42:53,961 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.15ms. Allocated memory is still 96.5MB. Free memory was 67.8MB in the beginning and 64.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:42:53,962 INFO L158 Benchmark]: Boogie Preprocessor took 23.88ms. Allocated memory is still 96.5MB. Free memory was 64.7MB in the beginning and 62.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:42:53,962 INFO L158 Benchmark]: RCFGBuilder took 276.13ms. Allocated memory is still 96.5MB. Free memory was 62.6MB in the beginning and 48.9MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 18:42:53,963 INFO L158 Benchmark]: TraceAbstraction took 1006.02ms. Allocated memory is still 96.5MB. Free memory was 48.4MB in the beginning and 67.0MB in the end (delta: -18.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:42:53,963 INFO L158 Benchmark]: Witness Printer took 99.31ms. Allocated memory is still 96.5MB. Free memory was 67.0MB in the beginning and 64.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:42:53,966 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory was 39.2MB in the beginning and 39.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1006.09ms. Allocated memory is still 96.5MB. Free memory was 75.9MB in the beginning and 67.8MB in the end (delta: 8.1MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.15ms. Allocated memory is still 96.5MB. Free memory was 67.8MB in the beginning and 64.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.88ms. Allocated memory is still 96.5MB. Free memory was 64.7MB in the beginning and 62.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 276.13ms. Allocated memory is still 96.5MB. Free memory was 62.6MB in the beginning and 48.9MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1006.02ms. Allocated memory is still 96.5MB. Free memory was 48.4MB in the beginning and 67.0MB in the end (delta: -18.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 99.31ms. Allocated memory is still 96.5MB. Free memory was 67.0MB in the beginning and 64.9MB 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: 1559]: 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_rand_predec_03_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=0, rand()=0, rand()=2, rand()=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1559] --data VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1559]: 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: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 23 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 41 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 18:42:53,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee91bc0f-0825-44aa-aea8-7e479f19fb91/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)