./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_12_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_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/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_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/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_1fc950db-88ed-4e6f-bedd-7063f9091fbb/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 60b897a9b8008c7524cfef24ffa178aee0cbd081acd52e3ed30a07a76c5ae5b7 --- 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 15:16:58,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:16:58,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:16:58,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:16:58,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:16:58,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:16:58,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:16:58,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:16:58,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:16:58,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:16:58,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:16:58,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:16:58,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:16:58,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:16:58,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:16:58,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:16:59,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:16:59,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:16:59,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:16:59,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:16:59,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:16:59,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:16:59,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:16:59,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:16:59,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:16:59,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:16:59,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:16:59,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:16:59,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:16:59,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:16:59,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:16:59,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:16:59,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:16:59,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:16:59,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:16:59,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:16:59,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:16:59,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:16:59,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:16:59,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:16:59,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:16:59,039 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-23 15:16:59,082 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:16:59,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:16:59,083 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:16:59,083 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:16:59,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:16:59,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:16:59,084 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:16:59,084 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:16:59,085 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:16:59,085 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:16:59,086 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:16:59,086 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:16:59,086 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:16:59,086 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:16:59,086 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:16:59,087 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:16:59,087 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:16:59,087 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:16:59,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:16:59,088 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:16:59,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:16:59,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:16:59,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:16:59,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:16:59,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:16:59,089 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:16:59,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:16:59,090 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:16:59,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:16:59,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:16:59,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:16:59,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:16:59,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:16:59,092 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:16:59,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:16:59,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:16:59,092 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:16:59,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:16:59,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:16:59,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:16:59,093 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_1fc950db-88ed-4e6f-bedd-7063f9091fbb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60b897a9b8008c7524cfef24ffa178aee0cbd081acd52e3ed30a07a76c5ae5b7 [2022-11-23 15:16:59,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:16:59,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:16:59,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:16:59,448 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:16:59,448 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:16:59,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_12_bad.i [2022-11-23 15:17:02,479 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:17:02,869 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:17:02,870 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_12_bad.i [2022-11-23 15:17:02,913 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/data/bffed0758/7928195ef1a745d2bb2180df81ad43e2/FLAG2e7eac0d3 [2022-11-23 15:17:02,932 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/data/bffed0758/7928195ef1a745d2bb2180df81ad43e2 [2022-11-23 15:17:02,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:17:02,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:17:02,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:17:02,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:17:02,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:17:02,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:17:02" (1/1) ... [2022-11-23 15:17:02,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab67fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:02, skipping insertion in model container [2022-11-23 15:17:02,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:17:02" (1/1) ... [2022-11-23 15:17:02,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:17:03,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:17:03,437 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:17:04,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:17:04,087 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:17:04,108 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:17:04,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:17:04,397 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:17:04,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:04 WrapperNode [2022-11-23 15:17:04,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:17:04,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:17:04,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:17:04,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:17:04,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:04" (1/1) ... [2022-11-23 15:17:04,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:04" (1/1) ... [2022-11-23 15:17:04,499 INFO L138 Inliner]: procedures = 499, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2022-11-23 15:17:04,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:17:04,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:17:04,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:17:04,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:17:04,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:04" (1/1) ... [2022-11-23 15:17:04,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:04" (1/1) ... [2022-11-23 15:17:04,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:04" (1/1) ... [2022-11-23 15:17:04,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:04" (1/1) ... [2022-11-23 15:17:04,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:04" (1/1) ... [2022-11-23 15:17:04,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:04" (1/1) ... [2022-11-23 15:17:04,551 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:04" (1/1) ... [2022-11-23 15:17:04,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:04" (1/1) ... [2022-11-23 15:17:04,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:17:04,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:17:04,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:17:04,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:17:04,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:04" (1/1) ... [2022-11-23 15:17:04,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:17:04,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:17:04,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:17:04,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:17:04,635 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-23 15:17:04,636 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-23 15:17:04,636 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2022-11-23 15:17:04,636 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2022-11-23 15:17:04,636 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:17:04,636 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:17:04,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:17:04,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:17:04,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:17:04,637 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:17:04,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:17:04,860 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:17:04,863 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:17:05,135 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:17:05,231 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:17:05,232 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:17:05,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:17:05 BoogieIcfgContainer [2022-11-23 15:17:05,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:17:05,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:17:05,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:17:05,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:17:05,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:17:02" (1/3) ... [2022-11-23 15:17:05,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75aade18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:17:05, skipping insertion in model container [2022-11-23 15:17:05,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:04" (2/3) ... [2022-11-23 15:17:05,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75aade18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:17:05, skipping insertion in model container [2022-11-23 15:17:05,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:17:05" (3/3) ... [2022-11-23 15:17:05,245 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_12_bad.i [2022-11-23 15:17:05,266 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:17:05,266 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-23 15:17:05,312 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:17:05,320 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;@677a7b72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:17:05,320 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-23 15:17:05,325 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 15 states have (on average 1.4) internal successors, (21), 21 states have internal predecessors, (21), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-23 15:17:05,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 15:17:05,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:17:05,334 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:17:05,335 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 15:17:05,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:17:05,341 INFO L85 PathProgramCache]: Analyzing trace with hash -228049344, now seen corresponding path program 1 times [2022-11-23 15:17:05,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:17:05,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735207483] [2022-11-23 15:17:05,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:17:05,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:17:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:17:05,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:17:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:17:05,754 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:17:05,756 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:17:05,757 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-23 15:17:05,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-23 15:17:05,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-23 15:17:05,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-23 15:17:05,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:17:05,766 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:17:05,776 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:17:05,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:17:05 BoogieIcfgContainer [2022-11-23 15:17:05,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:17:05,832 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:17:05,832 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:17:05,833 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:17:05,833 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:17:05" (3/4) ... [2022-11-23 15:17:05,837 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:17:05,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:17:05,838 INFO L158 Benchmark]: Toolchain (without parser) took 2895.95ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 106.7MB in the beginning and 95.1MB in the end (delta: 11.6MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2022-11-23 15:17:05,839 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 140.5MB. Free memory is still 111.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:17:05,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1452.58ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 106.2MB in the beginning and 147.6MB in the end (delta: -41.3MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2022-11-23 15:17:05,843 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.98ms. Allocated memory is still 188.7MB. Free memory was 147.6MB in the beginning and 144.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:17:05,848 INFO L158 Benchmark]: Boogie Preprocessor took 54.03ms. Allocated memory is still 188.7MB. Free memory was 144.5MB in the beginning and 142.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:17:05,849 INFO L158 Benchmark]: RCFGBuilder took 679.01ms. Allocated memory is still 188.7MB. Free memory was 142.4MB in the beginning and 120.3MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 15:17:05,850 INFO L158 Benchmark]: TraceAbstraction took 592.66ms. Allocated memory is still 188.7MB. Free memory was 120.3MB in the beginning and 95.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 15:17:05,851 INFO L158 Benchmark]: Witness Printer took 4.70ms. Allocated memory is still 188.7MB. Free memory is still 95.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:17:05,858 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 140.5MB. Free memory is still 111.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1452.58ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 106.2MB in the beginning and 147.6MB in the end (delta: -41.3MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.98ms. Allocated memory is still 188.7MB. Free memory was 147.6MB in the beginning and 144.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.03ms. Allocated memory is still 188.7MB. Free memory was 144.5MB in the beginning and 142.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 679.01ms. Allocated memory is still 188.7MB. Free memory was 142.4MB in the beginning and 120.3MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 592.66ms. Allocated memory is still 188.7MB. Free memory was 120.3MB in the beginning and 95.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.70ms. Allocated memory is still 188.7MB. Free memory is still 95.1MB. 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: 1563]: 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); [L1585] CALL printLine("Calling bad()...") VAL [#in~line={3:0}, 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) [L1585] RET printLine("Calling bad()...") VAL [#in~argv={2147483651:2147483650}, argc=2147483649, argv={2147483651:2147483650}, 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=2147483649] [L1586] CALL CWE191_Integer_Underflow__int_rand_predec_12_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 globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrueOrFalse()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrueOrFalse() [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)) [L1560] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1560] RET globalReturnsTrueOrFalse() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrueOrFalse()=1, globalTrue=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483652] [L1560] COND TRUE globalReturnsTrueOrFalse() [L1563] --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=2147483652] - UnprovableResult [Line: 1563]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1572]: 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 4 procedures, 30 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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=30occurred 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, 0.2s 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 15:17:05,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/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 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_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/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_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/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_1fc950db-88ed-4e6f-bedd-7063f9091fbb/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 60b897a9b8008c7524cfef24ffa178aee0cbd081acd52e3ed30a07a76c5ae5b7 --- 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 15:17:08,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:17:08,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:17:08,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:17:08,551 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:17:08,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:17:08,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:17:08,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:17:08,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:17:08,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:17:08,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:17:08,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:17:08,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:17:08,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:17:08,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:17:08,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:17:08,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:17:08,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:17:08,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:17:08,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:17:08,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:17:08,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:17:08,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:17:08,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:17:08,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:17:08,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:17:08,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:17:08,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:17:08,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:17:08,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:17:08,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:17:08,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:17:08,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:17:08,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:17:08,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:17:08,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:17:08,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:17:08,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:17:08,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:17:08,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:17:08,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:17:08,618 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-23 15:17:08,663 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:17:08,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:17:08,665 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:17:08,665 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:17:08,666 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:17:08,666 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:17:08,667 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:17:08,667 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:17:08,667 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:17:08,667 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:17:08,669 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:17:08,669 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:17:08,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:17:08,670 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:17:08,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:17:08,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:17:08,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:17:08,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:17:08,671 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:17:08,671 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:17:08,672 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:17:08,672 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:17:08,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:17:08,672 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:17:08,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:17:08,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:17:08,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:17:08,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:17:08,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:17:08,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:17:08,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:17:08,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:17:08,675 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:17:08,675 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:17:08,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:17:08,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:17:08,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:17:08,676 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_1fc950db-88ed-4e6f-bedd-7063f9091fbb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60b897a9b8008c7524cfef24ffa178aee0cbd081acd52e3ed30a07a76c5ae5b7 [2022-11-23 15:17:09,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:17:09,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:17:09,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:17:09,096 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:17:09,097 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:17:09,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_12_bad.i [2022-11-23 15:17:12,174 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:17:12,586 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:17:12,589 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_12_bad.i [2022-11-23 15:17:12,630 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/data/568f7ec5e/14a8c1d078e74843a20378c51517ba7c/FLAG3194f016d [2022-11-23 15:17:12,657 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/data/568f7ec5e/14a8c1d078e74843a20378c51517ba7c [2022-11-23 15:17:12,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:17:12,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:17:12,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:17:12,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:17:12,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:17:12,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:17:12" (1/1) ... [2022-11-23 15:17:12,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71430a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:12, skipping insertion in model container [2022-11-23 15:17:12,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:17:12" (1/1) ... [2022-11-23 15:17:12,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:17:12,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:17:13,231 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:17:13,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:17:13,799 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:17:13,832 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:17:13,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:17:14,119 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:17:14,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:14 WrapperNode [2022-11-23 15:17:14,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:17:14,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:17:14,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:17:14,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:17:14,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:14" (1/1) ... [2022-11-23 15:17:14,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:14" (1/1) ... [2022-11-23 15:17:14,214 INFO L138 Inliner]: procedures = 504, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-11-23 15:17:14,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:17:14,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:17:14,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:17:14,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:17:14,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:14" (1/1) ... [2022-11-23 15:17:14,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:14" (1/1) ... [2022-11-23 15:17:14,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:14" (1/1) ... [2022-11-23 15:17:14,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:14" (1/1) ... [2022-11-23 15:17:14,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:14" (1/1) ... [2022-11-23 15:17:14,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:14" (1/1) ... [2022-11-23 15:17:14,259 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:14" (1/1) ... [2022-11-23 15:17:14,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:14" (1/1) ... [2022-11-23 15:17:14,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:17:14,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:17:14,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:17:14,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:17:14,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:14" (1/1) ... [2022-11-23 15:17:14,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:17:14,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:17:14,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:17:14,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:17:14,364 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-23 15:17:14,365 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-23 15:17:14,365 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2022-11-23 15:17:14,365 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2022-11-23 15:17:14,365 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:17:14,365 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:17:14,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 15:17:14,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:17:14,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:17:14,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:17:14,366 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:17:14,513 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:17:14,515 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:17:14,737 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:17:14,742 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:17:14,743 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:17:14,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:17:14 BoogieIcfgContainer [2022-11-23 15:17:14,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:17:14,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:17:14,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:17:14,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:17:14,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:17:12" (1/3) ... [2022-11-23 15:17:14,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c4304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:17:14, skipping insertion in model container [2022-11-23 15:17:14,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:14" (2/3) ... [2022-11-23 15:17:14,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c4304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:17:14, skipping insertion in model container [2022-11-23 15:17:14,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:17:14" (3/3) ... [2022-11-23 15:17:14,756 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_12_bad.i [2022-11-23 15:17:14,775 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:17:14,775 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-23 15:17:14,840 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:17:14,848 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;@5b90659c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:17:14,849 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-23 15:17:14,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 23 states have (on average 1.391304347826087) internal successors, (32), 29 states have internal predecessors, (32), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-23 15:17:14,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-23 15:17:14,862 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:17:14,863 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 15:17:14,863 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 15:17:14,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:17:14,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1566579328, now seen corresponding path program 1 times [2022-11-23 15:17:14,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:17:14,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102462793] [2022-11-23 15:17:14,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:17:14,888 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 15:17:14,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:17:14,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/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 15:17:14,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/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 15:17:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:17:15,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:17:15,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:17:15,157 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 15:17:15,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:17:15,159 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:17:15,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102462793] [2022-11-23 15:17:15,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102462793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:17:15,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:17:15,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:17:15,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517647138] [2022-11-23 15:17:15,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:17:15,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:17:15,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:17:15,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:17:15,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:17:15,214 INFO L87 Difference]: Start difference. First operand has 38 states, 23 states have (on average 1.391304347826087) internal successors, (32), 29 states have internal predecessors, (32), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 15:17:15,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:17:15,294 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2022-11-23 15:17:15,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:17:15,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2022-11-23 15:17:15,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:17:15,305 INFO L225 Difference]: With dead ends: 58 [2022-11-23 15:17:15,305 INFO L226 Difference]: Without dead ends: 22 [2022-11-23 15:17:15,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:17:15,317 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 4 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:17:15,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 80 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:17:15,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-23 15:17:15,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-23 15:17:15,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 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 15:17:15,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2022-11-23 15:17:15,360 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 19 [2022-11-23 15:17:15,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:17:15,362 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2022-11-23 15:17:15,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 15:17:15,363 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2022-11-23 15:17:15,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 15:17:15,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:17:15,365 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 15:17:15,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/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 15:17:15,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/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 15:17:15,589 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 15:17:15,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:17:15,590 INFO L85 PathProgramCache]: Analyzing trace with hash -393790821, now seen corresponding path program 1 times [2022-11-23 15:17:15,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:17:15,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752415619] [2022-11-23 15:17:15,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:17:15,591 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 15:17:15,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:17:15,593 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/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 15:17:15,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/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 15:17:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:17:15,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:17:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:17:15,793 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 15:17:15,794 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:17:15,795 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-23 15:17:15,797 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-23 15:17:15,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-23 15:17:15,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-23 15:17:15,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/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)] Forceful destruction successful, exit code 0 [2022-11-23 15:17:16,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/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 15:17:16,011 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 15:17:16,015 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:17:16,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:17:16 BoogieIcfgContainer [2022-11-23 15:17:16,060 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:17:16,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:17:16,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:17:16,061 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:17:16,063 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:17:14" (3/4) ... [2022-11-23 15:17:16,064 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 15:17:16,122 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:17:16,122 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:17:16,123 INFO L158 Benchmark]: Toolchain (without parser) took 3456.49ms. Allocated memory is still 98.6MB. Free memory was 73.1MB in the beginning and 57.7MB in the end (delta: 15.4MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2022-11-23 15:17:16,124 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 73.4MB. Free memory was 51.7MB in the beginning and 51.7MB in the end (delta: 51.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:17:16,124 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1445.93ms. Allocated memory is still 98.6MB. Free memory was 72.9MB in the beginning and 57.1MB in the end (delta: 15.8MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2022-11-23 15:17:16,125 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.84ms. Allocated memory is still 98.6MB. Free memory was 57.1MB in the beginning and 54.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:17:16,125 INFO L158 Benchmark]: Boogie Preprocessor took 63.83ms. Allocated memory is still 98.6MB. Free memory was 54.0MB in the beginning and 52.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:17:16,126 INFO L158 Benchmark]: RCFGBuilder took 460.68ms. Allocated memory is still 98.6MB. Free memory was 52.0MB in the beginning and 65.3MB in the end (delta: -13.3MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2022-11-23 15:17:16,126 INFO L158 Benchmark]: TraceAbstraction took 1313.67ms. Allocated memory is still 98.6MB. Free memory was 64.7MB in the beginning and 60.3MB in the end (delta: 4.4MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2022-11-23 15:17:16,127 INFO L158 Benchmark]: Witness Printer took 61.54ms. Allocated memory is still 98.6MB. Free memory was 60.3MB in the beginning and 57.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:17:16,130 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 73.4MB. Free memory was 51.7MB in the beginning and 51.7MB in the end (delta: 51.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1445.93ms. Allocated memory is still 98.6MB. Free memory was 72.9MB in the beginning and 57.1MB in the end (delta: 15.8MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.84ms. Allocated memory is still 98.6MB. Free memory was 57.1MB in the beginning and 54.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.83ms. Allocated memory is still 98.6MB. Free memory was 54.0MB in the beginning and 52.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 460.68ms. Allocated memory is still 98.6MB. Free memory was 52.0MB in the beginning and 65.3MB in the end (delta: -13.3MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1313.67ms. Allocated memory is still 98.6MB. Free memory was 64.7MB in the beginning and 60.3MB in the end (delta: 4.4MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * Witness Printer took 61.54ms. Allocated memory is still 98.6MB. Free memory was 60.3MB in the beginning and 57.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. 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: 1563]: 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] [L1585] CALL printLine("Calling bad()...") VAL [#in~line={3:0}, 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) [L1585] 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] [L1586] CALL CWE191_Integer_Underflow__int_rand_predec_12_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 globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrueOrFalse()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrueOrFalse() [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()=0, rand()=1, 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)) [L1560] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1560] RET globalReturnsTrueOrFalse() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrueOrFalse()=1, globalTrue=1] [L1560] COND TRUE globalReturnsTrueOrFalse() [L1563] --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: 1563]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1572]: 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 4 procedures, 38 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 47 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 61 ConjunctsInSsa, 2 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 15:17:16,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fc950db-88ed-4e6f-bedd-7063f9091fbb/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)