./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_42_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/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_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/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_aa29c1c7-6977-4bef-83b5-735e37e356b9/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 d4d5d36e5d7b0805d339862d3f698a80bbbb96365815d5000485f7e94a60f646 --- 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 15:50:12,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:50:12,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:50:12,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:50:12,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:50:12,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:50:12,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:50:12,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:50:12,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:50:12,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:50:12,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:50:12,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:50:12,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:50:12,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:50:12,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:50:12,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:50:12,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:50:12,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:50:12,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:50:12,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:50:12,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:50:12,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:50:12,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:50:12,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:50:12,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:50:12,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:50:12,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:50:12,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:50:12,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:50:12,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:50:12,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:50:12,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:50:12,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:50:12,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:50:12,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:50:12,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:50:12,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:50:12,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:50:12,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:50:12,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:50:12,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:50:12,641 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-23 15:50:12,699 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:50:12,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:50:12,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:50:12,701 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:50:12,702 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:50:12,702 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:50:12,703 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:50:12,703 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:50:12,703 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:50:12,704 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:50:12,705 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:50:12,705 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:50:12,706 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:50:12,706 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:50:12,706 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:50:12,707 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:50:12,707 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:50:12,707 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:50:12,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:50:12,709 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:50:12,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:50:12,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:50:12,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:50:12,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:50:12,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:50:12,710 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:50:12,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:50:12,712 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:50:12,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:50:12,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:50:12,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:50:12,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:50:12,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:50:12,714 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:50:12,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:50:12,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:50:12,715 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:50:12,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:50:12,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:50:12,716 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:50:12,716 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_aa29c1c7-6977-4bef-83b5-735e37e356b9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4d5d36e5d7b0805d339862d3f698a80bbbb96365815d5000485f7e94a60f646 [2022-11-23 15:50:13,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:50:13,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:50:13,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:50:13,167 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:50:13,168 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:50:13,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_42_bad.i [2022-11-23 15:50:16,558 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:50:16,975 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:50:16,976 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_42_bad.i [2022-11-23 15:50:17,007 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/data/8709f2eb7/ed7083f3de4545ebb172adee2a37a75b/FLAGfa4d7ab1c [2022-11-23 15:50:17,026 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/data/8709f2eb7/ed7083f3de4545ebb172adee2a37a75b [2022-11-23 15:50:17,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:50:17,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:50:17,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:50:17,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:50:17,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:50:17,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:50:17" (1/1) ... [2022-11-23 15:50:17,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d68c770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:17, skipping insertion in model container [2022-11-23 15:50:17,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:50:17" (1/1) ... [2022-11-23 15:50:17,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:50:17,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:50:17,709 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:50:18,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:50:18,519 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:50:18,544 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:50:18,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:50:18,807 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:50:18,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:18 WrapperNode [2022-11-23 15:50:18,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:50:18,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:50:18,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:50:18,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:50:18,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:18" (1/1) ... [2022-11-23 15:50:18,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:18" (1/1) ... [2022-11-23 15:50:18,936 INFO L138 Inliner]: procedures = 500, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2022-11-23 15:50:18,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:50:18,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:50:18,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:50:18,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:50:18,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:18" (1/1) ... [2022-11-23 15:50:18,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:18" (1/1) ... [2022-11-23 15:50:18,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:18" (1/1) ... [2022-11-23 15:50:18,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:18" (1/1) ... [2022-11-23 15:50:18,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:18" (1/1) ... [2022-11-23 15:50:18,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:18" (1/1) ... [2022-11-23 15:50:18,993 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:18" (1/1) ... [2022-11-23 15:50:18,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:18" (1/1) ... [2022-11-23 15:50:18,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:50:18,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:50:19,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:50:19,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:50:19,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:18" (1/1) ... [2022-11-23 15:50:19,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:50:19,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:50:19,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:50:19,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:50:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:50:19,132 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:50:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:50:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:50:19,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:50:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:50:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:50:19,378 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:50:19,381 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:50:19,654 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:50:19,746 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:50:19,747 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:50:19,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:50:19 BoogieIcfgContainer [2022-11-23 15:50:19,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:50:19,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:50:19,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:50:19,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:50:19,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:50:17" (1/3) ... [2022-11-23 15:50:19,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26066a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:50:19, skipping insertion in model container [2022-11-23 15:50:19,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:18" (2/3) ... [2022-11-23 15:50:19,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26066a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:50:19, skipping insertion in model container [2022-11-23 15:50:19,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:50:19" (3/3) ... [2022-11-23 15:50:19,760 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_42_bad.i [2022-11-23 15:50:19,788 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:50:19,788 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:50:19,864 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:50:19,873 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;@1a744639, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:50:19,873 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:50:19,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:50:19,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 15:50:19,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:50:19,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:50:19,891 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:50:19,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:50:19,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1702117767, now seen corresponding path program 1 times [2022-11-23 15:50:19,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:50:19,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824581845] [2022-11-23 15:50:19,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:50:19,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:50:20,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:50:20,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:50:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:50:20,318 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:50:20,320 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:50:20,322 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 15:50:20,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 15:50:20,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:50:20,337 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:50:20,346 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:50:20,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:50:20 BoogieIcfgContainer [2022-11-23 15:50:20,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:50:20,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:50:20,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:50:20,396 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:50:20,397 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:50:19" (3/4) ... [2022-11-23 15:50:20,402 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:50:20,402 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:50:20,404 INFO L158 Benchmark]: Toolchain (without parser) took 3371.81ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 87.1MB in the beginning and 124.0MB in the end (delta: -36.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:50:20,404 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:50:20,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1775.32ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 87.1MB in the beginning and 109.6MB in the end (delta: -22.5MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. [2022-11-23 15:50:20,407 INFO L158 Benchmark]: Boogie Procedure Inliner took 126.79ms. Allocated memory is still 165.7MB. Free memory was 109.6MB in the beginning and 106.3MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:50:20,408 INFO L158 Benchmark]: Boogie Preprocessor took 60.96ms. Allocated memory is still 165.7MB. Free memory was 106.3MB in the beginning and 105.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:50:20,413 INFO L158 Benchmark]: RCFGBuilder took 750.76ms. Allocated memory is still 165.7MB. Free memory was 105.0MB in the beginning and 86.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:50:20,415 INFO L158 Benchmark]: TraceAbstraction took 641.20ms. Allocated memory is still 165.7MB. Free memory was 85.3MB in the beginning and 125.1MB in the end (delta: -39.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:50:20,416 INFO L158 Benchmark]: Witness Printer took 7.19ms. Allocated memory is still 165.7MB. Free memory was 125.1MB in the beginning and 124.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:50:20,426 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1775.32ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 87.1MB in the beginning and 109.6MB in the end (delta: -22.5MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 126.79ms. Allocated memory is still 165.7MB. Free memory was 109.6MB in the beginning and 106.3MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.96ms. Allocated memory is still 165.7MB. Free memory was 106.3MB in the beginning and 105.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 750.76ms. Allocated memory is still 165.7MB. Free memory was 105.0MB in the beginning and 86.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 641.20ms. Allocated memory is still 165.7MB. Free memory was 85.3MB in the beginning and 125.1MB in the end (delta: -39.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 7.19ms. Allocated memory is still 165.7MB. Free memory was 125.1MB in the beginning and 124.0MB in the end (delta: 1.0MB). 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: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1550, overapproximation of bitwiseAnd at line 1550. 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); [L1567] CALL printLine("Calling bad()...") VAL [#in~line={2:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1567] RET printLine("Calling bad()...") VAL [#in~argv={2147483650:2147483649}, argc=2147483648, argv={2147483650:2147483649}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~argc-unknown=2147483648] [L1568] CALL CWE191_Integer_Underflow__int_rand_multiply_42_bad() [L1555] int data; [L1556] data = 0 [L1557] CALL, EXPR badSource(data) [L1550] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1550] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1550] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1551] return data; [L1557] RET, EXPR badSource(data) [L1557] data = badSource(data) [L1558] COND TRUE data < 0 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] [L1560] data * 2 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: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, 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=14occurred 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, 7 NumberOfCodeBlocks, 7 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 15:50:20,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/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_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/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_aa29c1c7-6977-4bef-83b5-735e37e356b9/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 d4d5d36e5d7b0805d339862d3f698a80bbbb96365815d5000485f7e94a60f646 --- 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 15:50:23,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:50:23,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:50:23,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:50:23,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:50:23,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:50:23,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:50:23,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:50:23,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:50:23,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:50:23,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:50:23,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:50:23,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:50:23,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:50:23,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:50:23,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:50:23,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:50:23,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:50:23,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:50:23,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:50:23,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:50:23,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:50:23,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:50:23,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:50:23,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:50:23,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:50:23,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:50:23,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:50:23,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:50:23,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:50:23,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:50:23,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:50:23,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:50:23,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:50:23,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:50:23,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:50:23,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:50:23,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:50:23,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:50:23,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:50:23,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:50:23,461 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-23 15:50:23,519 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:50:23,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:50:23,520 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:50:23,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:50:23,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:50:23,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:50:23,522 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:50:23,523 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:50:23,523 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:50:23,523 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:50:23,524 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:50:23,524 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:50:23,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:50:23,525 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:50:23,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:50:23,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:50:23,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:50:23,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:50:23,527 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:50:23,527 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:50:23,528 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:50:23,528 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:50:23,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:50:23,528 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:50:23,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:50:23,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:50:23,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:50:23,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:50:23,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:50:23,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:50:23,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:50:23,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:50:23,531 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:50:23,531 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:50:23,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:50:23,532 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:50:23,532 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:50:23,533 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_aa29c1c7-6977-4bef-83b5-735e37e356b9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4d5d36e5d7b0805d339862d3f698a80bbbb96365815d5000485f7e94a60f646 [2022-11-23 15:50:24,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:50:24,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:50:24,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:50:24,089 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:50:24,090 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:50:24,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_42_bad.i [2022-11-23 15:50:27,603 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:50:28,157 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:50:28,158 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_42_bad.i [2022-11-23 15:50:28,190 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/data/e827cdb00/dc6cb52b48484bf9bbdf012b77c09345/FLAGc28fc9a01 [2022-11-23 15:50:28,208 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/data/e827cdb00/dc6cb52b48484bf9bbdf012b77c09345 [2022-11-23 15:50:28,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:50:28,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:50:28,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:50:28,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:50:28,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:50:28,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:50:28" (1/1) ... [2022-11-23 15:50:28,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bad50f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:28, skipping insertion in model container [2022-11-23 15:50:28,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:50:28" (1/1) ... [2022-11-23 15:50:28,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:50:28,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:50:28,875 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:50:29,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:50:29,710 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:50:29,733 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:50:29,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:50:29,956 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:50:29,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:29 WrapperNode [2022-11-23 15:50:29,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:50:29,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:50:29,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:50:29,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:50:29,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:29" (1/1) ... [2022-11-23 15:50:29,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:29" (1/1) ... [2022-11-23 15:50:30,027 INFO L138 Inliner]: procedures = 505, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2022-11-23 15:50:30,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:50:30,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:50:30,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:50:30,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:50:30,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:29" (1/1) ... [2022-11-23 15:50:30,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:29" (1/1) ... [2022-11-23 15:50:30,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:29" (1/1) ... [2022-11-23 15:50:30,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:29" (1/1) ... [2022-11-23 15:50:30,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:29" (1/1) ... [2022-11-23 15:50:30,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:29" (1/1) ... [2022-11-23 15:50:30,059 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:29" (1/1) ... [2022-11-23 15:50:30,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:29" (1/1) ... [2022-11-23 15:50:30,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:50:30,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:50:30,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:50:30,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:50:30,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:29" (1/1) ... [2022-11-23 15:50:30,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:50:30,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:50:30,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:50:30,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:50:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:50:30,185 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:50:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 15:50:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:50:30,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:50:30,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:50:30,188 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:50:30,391 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:50:30,393 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:50:30,563 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:50:30,569 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:50:30,583 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:50:30,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:50:30 BoogieIcfgContainer [2022-11-23 15:50:30,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:50:30,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:50:30,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:50:30,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:50:30,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:50:28" (1/3) ... [2022-11-23 15:50:30,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35235a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:50:30, skipping insertion in model container [2022-11-23 15:50:30,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:29" (2/3) ... [2022-11-23 15:50:30,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35235a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:50:30, skipping insertion in model container [2022-11-23 15:50:30,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:50:30" (3/3) ... [2022-11-23 15:50:30,596 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_42_bad.i [2022-11-23 15:50:30,633 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:50:30,633 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:50:30,707 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:50:30,718 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;@39055068, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:50:30,718 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:50:30,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:50:30,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 15:50:30,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:50:30,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:50:30,738 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:50:30,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:50:30,752 INFO L85 PathProgramCache]: Analyzing trace with hash 149557746, now seen corresponding path program 1 times [2022-11-23 15:50:30,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:50:30,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [826126907] [2022-11-23 15:50:30,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:50:30,768 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 15:50:30,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:50:30,775 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/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 15:50:30,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/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 15:50:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:50:30,916 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:50:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:50:30,991 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 15:50:30,993 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:50:30,994 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 15:50:30,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 15:50:31,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/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 15:50:31,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/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 15:50:31,225 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:50:31,232 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:50:31,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:50:31 BoogieIcfgContainer [2022-11-23 15:50:31,285 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:50:31,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:50:31,285 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:50:31,286 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:50:31,286 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:50:30" (3/4) ... [2022-11-23 15:50:31,288 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 15:50:31,349 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:50:31,349 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:50:31,350 INFO L158 Benchmark]: Toolchain (without parser) took 3137.59ms. Allocated memory was 90.2MB in the beginning and 123.7MB in the end (delta: 33.6MB). Free memory was 44.1MB in the beginning and 57.0MB in the end (delta: -12.9MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2022-11-23 15:50:31,351 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 90.2MB. Free memory is still 67.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:50:31,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1739.76ms. Allocated memory was 90.2MB in the beginning and 123.7MB in the end (delta: 33.6MB). Free memory was 43.9MB in the beginning and 96.0MB in the end (delta: -52.1MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2022-11-23 15:50:31,353 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.47ms. Allocated memory is still 123.7MB. Free memory was 96.0MB in the beginning and 92.7MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:50:31,353 INFO L158 Benchmark]: Boogie Preprocessor took 37.18ms. Allocated memory is still 123.7MB. Free memory was 92.7MB in the beginning and 90.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:50:31,354 INFO L158 Benchmark]: RCFGBuilder took 519.09ms. Allocated memory is still 123.7MB. Free memory was 90.6MB in the beginning and 77.1MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 15:50:31,355 INFO L158 Benchmark]: TraceAbstraction took 697.13ms. Allocated memory is still 123.7MB. Free memory was 76.5MB in the beginning and 59.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 15:50:31,356 INFO L158 Benchmark]: Witness Printer took 63.86ms. Allocated memory is still 123.7MB. Free memory was 59.7MB in the beginning and 57.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:50:31,359 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 90.2MB. Free memory is still 67.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1739.76ms. Allocated memory was 90.2MB in the beginning and 123.7MB in the end (delta: 33.6MB). Free memory was 43.9MB in the beginning and 96.0MB in the end (delta: -52.1MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.47ms. Allocated memory is still 123.7MB. Free memory was 96.0MB in the beginning and 92.7MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.18ms. Allocated memory is still 123.7MB. Free memory was 92.7MB in the beginning and 90.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 519.09ms. Allocated memory is still 123.7MB. Free memory was 90.6MB in the beginning and 77.1MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 697.13ms. Allocated memory is still 123.7MB. Free memory was 76.5MB in the beginning and 59.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 63.86ms. Allocated memory is still 123.7MB. Free memory was 59.7MB in the beginning and 57.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1560]: 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] [L1567] CALL printLine("Calling bad()...") VAL [#in~line={2:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1567] 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] [L1568] CALL CWE191_Integer_Underflow__int_rand_multiply_42_bad() [L1555] int data; [L1556] data = 0 [L1557] CALL, EXPR badSource(data) [L1550] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1550] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=0, rand()=0, rand()=32768, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-1073741825, unknown-#in~data-unknown=0] [L1550] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1551] return data; VAL [\result=-1073741825, data=-1073741825, 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~data-unknown=0] [L1557] RET, EXPR badSource(data) [L1557] data = badSource(data) [L1558] COND TRUE data < 0 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] data * 2 VAL [data=-1073741825, 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: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, 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=23occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 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 proved your program to be incorrect! [2022-11-23 15:50:31,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa29c1c7-6977-4bef-83b5-735e37e356b9/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)