./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_11_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dbe2ca349e0667d8692126dce502d970e06290e62c46f46043e6bad80040db74 --- 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-4e7fbc6 [2022-11-23 15:17:47,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:17:47,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:17:47,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:17:47,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:17:47,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:17:47,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:17:47,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:17:47,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:17:47,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:17:47,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:17:47,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:17:47,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:17:47,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:17:47,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:17:47,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:17:47,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:17:47,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:17:47,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:17:47,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:17:47,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:17:47,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:17:47,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:17:47,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:17:47,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:17:47,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:17:47,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:17:47,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:17:47,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:17:47,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:17:47,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:17:47,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:17:47,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:17:47,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:17:47,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:17:47,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:17:47,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:17:47,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:17:47,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:17:47,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:17:47,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:17:47,595 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-23 15:17:47,621 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:17:47,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:17:47,621 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:17:47,622 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:17:47,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:17:47,623 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:17:47,623 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:17:47,623 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:17:47,624 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:17:47,624 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:17:47,624 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:17:47,624 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:17:47,625 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:17:47,625 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:17:47,625 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:17:47,626 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:17:47,626 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:17:47,626 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:17:47,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:17:47,627 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:17:47,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:17:47,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:17:47,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:17:47,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:17:47,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:17:47,629 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:17:47,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:17:47,629 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:17:47,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:17:47,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:17:47,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:17:47,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:17:47,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:17:47,631 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:17:47,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:17:47,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:17:47,632 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:17:47,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:17:47,632 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:17:47,633 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:17:47,633 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbe2ca349e0667d8692126dce502d970e06290e62c46f46043e6bad80040db74 [2022-11-23 15:17:47,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:17:47,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:17:47,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:17:47,990 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:17:47,991 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:17:47,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_11_bad.i [2022-11-23 15:17:51,133 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:17:51,497 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:17:51,498 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_11_bad.i [2022-11-23 15:17:51,532 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/data/d8fe215ba/906bb020af764e2c80b3a0d8417ab637/FLAG6c6a21bfc [2022-11-23 15:17:51,548 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/data/d8fe215ba/906bb020af764e2c80b3a0d8417ab637 [2022-11-23 15:17:51,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:17:51,557 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:17:51,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:17:51,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:17:51,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:17:51,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:17:51" (1/1) ... [2022-11-23 15:17:51,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363bd747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:51, skipping insertion in model container [2022-11-23 15:17:51,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:17:51" (1/1) ... [2022-11-23 15:17:51,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:17:51,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:17:52,068 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:17:52,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:17:52,711 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:17:52,743 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:17:52,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:17:52,937 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:17:52,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52 WrapperNode [2022-11-23 15:17:52,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:17:52,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:17:52,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:17:52,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:17:52,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 15:17:52,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 15:17:52,997 INFO L138 Inliner]: procedures = 499, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2022-11-23 15:17:52,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:17:52,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:17:52,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:17:52,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:17:53,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 15:17:53,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 15:17:53,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 15:17:53,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 15:17:53,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 15:17:53,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 15:17:53,022 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 15:17:53,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 15:17:53,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:17:53,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:17:53,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:17:53,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:17:53,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 15:17:53,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:17:53,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:17:53,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:17:53,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:17:53,135 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:17:53,136 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:17:53,136 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-11-23 15:17:53,136 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-11-23 15:17:53,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:17:53,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:17:53,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:17:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:17:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:17:53,396 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:17:53,398 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:17:53,650 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:17:53,814 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:17:53,814 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:17:53,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:17:53 BoogieIcfgContainer [2022-11-23 15:17:53,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:17:53,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:17:53,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:17:53,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:17:53,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:17:51" (1/3) ... [2022-11-23 15:17:53,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c74f194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:17:53, skipping insertion in model container [2022-11-23 15:17:53,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (2/3) ... [2022-11-23 15:17:53,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c74f194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:17:53, skipping insertion in model container [2022-11-23 15:17:53,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:17:53" (3/3) ... [2022-11-23 15:17:53,825 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_11_bad.i [2022-11-23 15:17:53,844 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:17:53,845 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:17:53,898 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:17:53,905 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=FINITE_AUTOMATA, 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;@44f342fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:17:53,905 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:17:53,908 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 15:17:53,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 15:17:53,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:17:53,916 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:17:53,917 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:17:53,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:17:53,922 INFO L85 PathProgramCache]: Analyzing trace with hash 150707878, now seen corresponding path program 1 times [2022-11-23 15:17:53,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:17:53,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948977806] [2022-11-23 15:17:53,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:17:53,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:17:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:17:54,141 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:17:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:17:54,286 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:17:54,289 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:17:54,290 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 15:17:54,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 15:17:54,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:17:54,302 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:17:54,313 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:17:54,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:17:54 BoogieIcfgContainer [2022-11-23 15:17:54,344 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:17:54,344 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:17:54,345 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:17:54,345 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:17:54,345 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:17:53" (3/4) ... [2022-11-23 15:17:54,348 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:17:54,348 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:17:54,349 INFO L158 Benchmark]: Toolchain (without parser) took 2792.42ms. Allocated memory was 138.4MB in the beginning and 203.4MB in the end (delta: 65.0MB). Free memory was 79.8MB in the beginning and 138.8MB in the end (delta: -59.0MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2022-11-23 15:17:54,350 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 138.4MB. Free memory was 102.3MB in the beginning and 102.3MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:17:54,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1377.30ms. Allocated memory was 138.4MB in the beginning and 203.4MB in the end (delta: 65.0MB). Free memory was 79.4MB in the beginning and 126.2MB in the end (delta: -46.8MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2022-11-23 15:17:54,351 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.70ms. Allocated memory is still 203.4MB. Free memory was 125.3MB in the beginning and 122.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:17:54,352 INFO L158 Benchmark]: Boogie Preprocessor took 28.12ms. Allocated memory is still 203.4MB. Free memory was 122.9MB in the beginning and 121.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:17:54,353 INFO L158 Benchmark]: RCFGBuilder took 789.31ms. Allocated memory is still 203.4MB. Free memory was 121.1MB in the beginning and 161.8MB in the end (delta: -40.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-23 15:17:54,353 INFO L158 Benchmark]: TraceAbstraction took 525.28ms. Allocated memory is still 203.4MB. Free memory was 161.8MB in the beginning and 138.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 15:17:54,354 INFO L158 Benchmark]: Witness Printer took 3.92ms. Allocated memory is still 203.4MB. Free memory is still 138.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:17:54,357 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 138.4MB. Free memory was 102.3MB in the beginning and 102.3MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1377.30ms. Allocated memory was 138.4MB in the beginning and 203.4MB in the end (delta: 65.0MB). Free memory was 79.4MB in the beginning and 126.2MB in the end (delta: -46.8MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.70ms. Allocated memory is still 203.4MB. Free memory was 125.3MB in the beginning and 122.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.12ms. Allocated memory is still 203.4MB. Free memory was 122.9MB in the beginning and 121.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 789.31ms. Allocated memory is still 203.4MB. Free memory was 121.1MB in the beginning and 161.8MB in the end (delta: -40.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 525.28ms. Allocated memory is still 203.4MB. Free memory was 161.8MB in the beginning and 138.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 3.92ms. Allocated memory is still 203.4MB. Free memory is still 138.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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); [L1568] CALL printLine("Calling bad()...") VAL [#in~line={2:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [#in~argv={2147483650:2147483649}, argc=2147483648, argv={2147483650:2147483649}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~argc-unknown=2147483648] [L1569] CALL CWE191_Integer_Underflow__int_rand_predec_11_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] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; [L1552] RET globalReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrue() [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 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1556] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; [L1556] RET globalReturnsTrue() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483651] [L1556] COND TRUE globalReturnsTrue() [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, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483651] - 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 3 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 15:17:54,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dbe2ca349e0667d8692126dce502d970e06290e62c46f46043e6bad80040db74 --- 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-4e7fbc6 [2022-11-23 15:17:56,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:17:56,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:17:56,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:17:56,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:17:56,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:17:56,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:17:56,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:17:56,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:17:56,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:17:56,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:17:56,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:17:56,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:17:56,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:17:56,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:17:56,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:17:56,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:17:56,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:17:56,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:17:56,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:17:56,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:17:56,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:17:56,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:17:56,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:17:56,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:17:56,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:17:56,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:17:56,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:17:56,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:17:56,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:17:56,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:17:56,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:17:56,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:17:56,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:17:56,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:17:56,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:17:56,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:17:56,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:17:56,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:17:56,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:17:56,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:17:56,873 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-23 15:17:56,912 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:17:56,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:17:56,914 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:17:56,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:17:56,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:17:56,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:17:56,915 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:17:56,916 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:17:56,916 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:17:56,916 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:17:56,917 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:17:56,917 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:17:56,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:17:56,918 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:17:56,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:17:56,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:17:56,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:17:56,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:17:56,919 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:17:56,920 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:17:56,920 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:17:56,920 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:17:56,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:17:56,920 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:17:56,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:17:56,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:17:56,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:17:56,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:17:56,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:17:56,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:17:56,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:17:56,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:17:56,923 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:17:56,923 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:17:56,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:17:56,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:17:56,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:17:56,924 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbe2ca349e0667d8692126dce502d970e06290e62c46f46043e6bad80040db74 [2022-11-23 15:17:57,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:17:57,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:17:57,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:17:57,285 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:17:57,286 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:17:57,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_11_bad.i [2022-11-23 15:18:00,297 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:18:00,768 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:18:00,774 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_11_bad.i [2022-11-23 15:18:00,804 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/data/a78c1cab3/2467b06a0d784c9fbedcc1134392e30d/FLAG0a8812f50 [2022-11-23 15:18:00,829 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/data/a78c1cab3/2467b06a0d784c9fbedcc1134392e30d [2022-11-23 15:18:00,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:18:00,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:18:00,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:18:00,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:18:00,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:18:00,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:18:00" (1/1) ... [2022-11-23 15:18:00,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50883038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:00, skipping insertion in model container [2022-11-23 15:18:00,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:18:00" (1/1) ... [2022-11-23 15:18:00,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:18:00,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:18:01,332 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:18:02,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:18:02,193 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:18:02,212 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:18:02,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:18:02,421 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:18:02,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:02 WrapperNode [2022-11-23 15:18:02,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:18:02,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:18:02,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:18:02,423 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:18:02,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:02" (1/1) ... [2022-11-23 15:18:02,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:02" (1/1) ... [2022-11-23 15:18:02,495 INFO L138 Inliner]: procedures = 504, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2022-11-23 15:18:02,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:18:02,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:18:02,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:18:02,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:18:02,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:02" (1/1) ... [2022-11-23 15:18:02,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:02" (1/1) ... [2022-11-23 15:18:02,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:02" (1/1) ... [2022-11-23 15:18:02,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:02" (1/1) ... [2022-11-23 15:18:02,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:02" (1/1) ... [2022-11-23 15:18:02,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:02" (1/1) ... [2022-11-23 15:18:02,542 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:02" (1/1) ... [2022-11-23 15:18:02,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:02" (1/1) ... [2022-11-23 15:18:02,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:18:02,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:18:02,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:18:02,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:18:02,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:02" (1/1) ... [2022-11-23 15:18:02,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:18:02,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:18:02,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:18:02,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:18:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:18:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:18:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-11-23 15:18:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-11-23 15:18:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 15:18:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:18:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:18:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:18:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:18:02,831 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:18:02,833 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:18:03,022 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:18:03,048 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:18:03,049 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:18:03,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:18:03 BoogieIcfgContainer [2022-11-23 15:18:03,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:18:03,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:18:03,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:18:03,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:18:03,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:18:00" (1/3) ... [2022-11-23 15:18:03,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a921795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:18:03, skipping insertion in model container [2022-11-23 15:18:03,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:02" (2/3) ... [2022-11-23 15:18:03,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a921795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:18:03, skipping insertion in model container [2022-11-23 15:18:03,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:18:03" (3/3) ... [2022-11-23 15:18:03,065 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_11_bad.i [2022-11-23 15:18:03,085 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:18:03,085 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:18:03,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:18:03,140 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=FINITE_AUTOMATA, 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;@60fe39eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:18:03,140 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:18:03,145 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 15:18:03,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-23 15:18:03,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:18:03,154 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:18:03,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:18:03,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:18:03,161 INFO L85 PathProgramCache]: Analyzing trace with hash -894708504, now seen corresponding path program 1 times [2022-11-23 15:18:03,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:18:03,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207218342] [2022-11-23 15:18:03,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:18:03,176 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:18:03,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:18:03,185 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:18:03,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 15:18:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:18:03,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:18:03,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:18:03,421 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:18:03,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:18:03,422 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:18:03,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207218342] [2022-11-23 15:18:03,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207218342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:18:03,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:18:03,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:18:03,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128976193] [2022-11-23 15:18:03,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:18:03,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:18:03,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:18:03,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:18:03,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:18:03,467 INFO L87 Difference]: Start difference. First operand has 28 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 15:18:03,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:18:03,506 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2022-11-23 15:18:03,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:18:03,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2022-11-23 15:18:03,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:18:03,517 INFO L225 Difference]: With dead ends: 47 [2022-11-23 15:18:03,517 INFO L226 Difference]: Without dead ends: 19 [2022-11-23 15:18:03,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:18:03,524 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:18:03,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:18:03,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-23 15:18:03,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-23 15:18:03,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:18:03,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-11-23 15:18:03,564 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 19 [2022-11-23 15:18:03,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:18:03,566 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-11-23 15:18:03,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 15:18:03,567 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-11-23 15:18:03,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 15:18:03,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:18:03,569 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:18:03,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:18:03,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:18:03,783 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:18:03,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:18:03,784 INFO L85 PathProgramCache]: Analyzing trace with hash 2082070403, now seen corresponding path program 1 times [2022-11-23 15:18:03,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:18:03,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501971288] [2022-11-23 15:18:03,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:18:03,785 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:18:03,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:18:03,788 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:18:03,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 15:18:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:18:03,895 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:18:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:18:03,983 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 15:18:03,983 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:18:03,984 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 15:18:03,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 15:18:04,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:18:04,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:18:04,205 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 15:18:04,212 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:18:04,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:18:04 BoogieIcfgContainer [2022-11-23 15:18:04,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:18:04,253 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:18:04,253 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:18:04,254 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:18:04,254 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:18:03" (3/4) ... [2022-11-23 15:18:04,256 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 15:18:04,303 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:18:04,304 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:18:04,304 INFO L158 Benchmark]: Toolchain (without parser) took 3465.03ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 65.3MB in the beginning and 53.4MB in the end (delta: 11.8MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2022-11-23 15:18:04,305 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 67.1MB. Free memory was 45.6MB in the beginning and 45.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:18:04,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1576.67ms. Allocated memory is still 90.2MB. Free memory was 65.0MB in the beginning and 42.6MB in the end (delta: 22.4MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2022-11-23 15:18:04,306 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.23ms. Allocated memory is still 90.2MB. Free memory was 42.3MB in the beginning and 63.2MB in the end (delta: -21.0MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-11-23 15:18:04,307 INFO L158 Benchmark]: Boogie Preprocessor took 57.39ms. Allocated memory is still 90.2MB. Free memory was 63.2MB in the beginning and 61.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:18:04,307 INFO L158 Benchmark]: RCFGBuilder took 488.22ms. Allocated memory is still 90.2MB. Free memory was 61.3MB in the beginning and 47.4MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 15:18:04,308 INFO L158 Benchmark]: TraceAbstraction took 1199.67ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 47.0MB in the beginning and 56.2MB in the end (delta: -9.2MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2022-11-23 15:18:04,308 INFO L158 Benchmark]: Witness Printer took 50.64ms. Allocated memory is still 109.1MB. Free memory was 56.2MB in the beginning and 53.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:18:04,311 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 67.1MB. Free memory was 45.6MB in the beginning and 45.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1576.67ms. Allocated memory is still 90.2MB. Free memory was 65.0MB in the beginning and 42.6MB in the end (delta: 22.4MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.23ms. Allocated memory is still 90.2MB. Free memory was 42.3MB in the beginning and 63.2MB in the end (delta: -21.0MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.39ms. Allocated memory is still 90.2MB. Free memory was 63.2MB in the beginning and 61.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 488.22ms. Allocated memory is still 90.2MB. Free memory was 61.3MB in the beginning and 47.4MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1199.67ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 47.0MB in the beginning and 56.2MB in the end (delta: -9.2MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Witness Printer took 50.64ms. Allocated memory is still 109.1MB. Free memory was 56.2MB in the beginning and 53.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 [#in~line={2:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [#in~argv={13:12}, argc=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, unknown-#in~argc-unknown=12] [L1569] CALL CWE191_Integer_Underflow__int_rand_predec_11_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] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] RET globalReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrue() [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()=65536, rand()=1, rand()=0, rand()=0, 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)) [L1556] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] RET globalReturnsTrue() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1556] COND TRUE globalReturnsTrue() [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 3 procedures, 28 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 2, 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, 84 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-23 15:18:04,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d18254f-fa45-4315-97a1-6beedf7f30ef/bin/utaipan-Q6hlc19bkW/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)