./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_03_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_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/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_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_03_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/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_b6e41cd5-4787-44e7-9580-0857996348bf/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 f7b10beb0a545a3233e92398efbbdd5ae5428f1e517bc7baa8deae886bc799f2 --- 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 15:57:39,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:57:39,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:57:39,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:57:39,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:57:39,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:57:39,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:57:39,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:57:39,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:57:39,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:57:39,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:57:39,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:57:39,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:57:39,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:57:39,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:57:39,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:57:39,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:57:39,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:57:39,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:57:39,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:57:39,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:57:39,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:57:39,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:57:39,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:57:39,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:57:39,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:57:39,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:57:39,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:57:39,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:57:39,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:57:39,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:57:39,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:57:39,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:57:39,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:57:39,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:57:39,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:57:39,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:57:39,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:57:39,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:57:39,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:57:39,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:57:39,142 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-23 15:57:39,165 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:57:39,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:57:39,166 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:57:39,166 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:57:39,167 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:57:39,167 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:57:39,167 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:57:39,169 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:57:39,169 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:57:39,169 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:57:39,170 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:57:39,171 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:57:39,171 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:57:39,171 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:57:39,171 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:57:39,171 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:57:39,172 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:57:39,172 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:57:39,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:57:39,173 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:57:39,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:57:39,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:57:39,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:57:39,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:57:39,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:57:39,174 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:57:39,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:57:39,175 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:57:39,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:57:39,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:57:39,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:57:39,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:57:39,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:57:39,176 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:57:39,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:57:39,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:57:39,177 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:57:39,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:57:39,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:57:39,177 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:57:39,177 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_b6e41cd5-4787-44e7-9580-0857996348bf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7b10beb0a545a3233e92398efbbdd5ae5428f1e517bc7baa8deae886bc799f2 [2022-11-23 15:57:39,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:57:39,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:57:39,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:57:39,490 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:57:39,491 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:57:39,492 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_03_bad.i [2022-11-23 15:57:42,482 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:57:42,925 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:57:42,926 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_03_bad.i [2022-11-23 15:57:42,959 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/data/0437688e9/a3e7b96bae3d4b8cae1989cf468cb0ed/FLAG74f284bcf [2022-11-23 15:57:42,977 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/data/0437688e9/a3e7b96bae3d4b8cae1989cf468cb0ed [2022-11-23 15:57:42,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:57:42,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:57:42,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:57:42,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:57:42,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:57:42,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:57:42" (1/1) ... [2022-11-23 15:57:42,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a9b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:42, skipping insertion in model container [2022-11-23 15:57:42,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:57:42" (1/1) ... [2022-11-23 15:57:43,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:57:43,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:57:43,447 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:57:43,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:57:44,008 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:57:44,048 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:57:44,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:57:44,323 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:57:44,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:44 WrapperNode [2022-11-23 15:57:44,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:57:44,326 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:57:44,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:57:44,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:57:44,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:44" (1/1) ... [2022-11-23 15:57:44,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:44" (1/1) ... [2022-11-23 15:57:44,392 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-11-23 15:57:44,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:57:44,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:57:44,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:57:44,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:57:44,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:44" (1/1) ... [2022-11-23 15:57:44,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:44" (1/1) ... [2022-11-23 15:57:44,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:44" (1/1) ... [2022-11-23 15:57:44,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:44" (1/1) ... [2022-11-23 15:57:44,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:44" (1/1) ... [2022-11-23 15:57:44,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:44" (1/1) ... [2022-11-23 15:57:44,423 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:44" (1/1) ... [2022-11-23 15:57:44,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:44" (1/1) ... [2022-11-23 15:57:44,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:57:44,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:57:44,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:57:44,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:57:44,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:44" (1/1) ... [2022-11-23 15:57:44,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:57:44,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:57:44,463 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:57:44,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:57:44,507 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:57:44,507 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:57:44,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:57:44,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:57:44,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:57:44,507 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:57:44,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:57:44,650 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:57:44,652 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:57:44,817 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:57:44,980 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:57:44,980 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 15:57:44,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:57:44 BoogieIcfgContainer [2022-11-23 15:57:44,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:57:44,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:57:44,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:57:44,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:57:44,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:57:42" (1/3) ... [2022-11-23 15:57:44,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@591fa94c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:57:44, skipping insertion in model container [2022-11-23 15:57:44,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:44" (2/3) ... [2022-11-23 15:57:44,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@591fa94c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:57:44, skipping insertion in model container [2022-11-23 15:57:44,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:57:44" (3/3) ... [2022-11-23 15:57:44,992 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_03_bad.i [2022-11-23 15:57:45,028 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:57:45,030 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:57:45,079 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:57:45,086 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;@3ea71303, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:57:45,087 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:57:45,091 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 9 states have internal predecessors, (10), 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 15:57:45,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 15:57:45,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:57:45,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 15:57:45,100 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:57:45,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:57:45,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1963300780, now seen corresponding path program 1 times [2022-11-23 15:57:45,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:57:45,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783986851] [2022-11-23 15:57:45,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:45,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:57:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:57:45,353 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:57:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:57:45,560 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:57:45,563 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:57:45,564 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 15:57:45,566 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 15:57:45,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:57:45,572 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:57:45,576 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:57:45,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:57:45 BoogieIcfgContainer [2022-11-23 15:57:45,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:57:45,600 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:57:45,600 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:57:45,600 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:57:45,601 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:57:44" (3/4) ... [2022-11-23 15:57:45,604 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:57:45,605 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:57:45,606 INFO L158 Benchmark]: Toolchain (without parser) took 2622.79ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 115.6MB in the beginning and 147.5MB in the end (delta: -32.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 15:57:45,606 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 109.1MB. Free memory is still 67.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:57:45,607 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1338.29ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 115.1MB in the beginning and 135.5MB in the end (delta: -20.4MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. [2022-11-23 15:57:45,608 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.20ms. Allocated memory is still 188.7MB. Free memory was 135.5MB in the beginning and 132.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:57:45,608 INFO L158 Benchmark]: Boogie Preprocessor took 34.26ms. Allocated memory is still 188.7MB. Free memory was 132.3MB in the beginning and 131.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:57:45,609 INFO L158 Benchmark]: RCFGBuilder took 554.70ms. Allocated memory is still 188.7MB. Free memory was 130.2MB in the beginning and 110.3MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:57:45,609 INFO L158 Benchmark]: TraceAbstraction took 614.11ms. Allocated memory is still 188.7MB. Free memory was 110.3MB in the beginning and 147.5MB in the end (delta: -37.2MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2022-11-23 15:57:45,610 INFO L158 Benchmark]: Witness Printer took 4.65ms. Allocated memory is still 188.7MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:57:45,613 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 109.1MB. Free memory is still 67.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1338.29ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 115.1MB in the beginning and 135.5MB in the end (delta: -20.4MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.20ms. Allocated memory is still 188.7MB. Free memory was 135.5MB in the beginning and 132.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.26ms. Allocated memory is still 188.7MB. Free memory was 132.3MB in the beginning and 131.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 554.70ms. Allocated memory is still 188.7MB. Free memory was 130.2MB in the beginning and 110.3MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 614.11ms. Allocated memory is still 188.7MB. Free memory was 110.3MB in the beginning and 147.5MB in the end (delta: -37.2MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * Witness Printer took 4.65ms. Allocated memory is still 188.7MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1554, overapproximation of bitwiseAnd at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [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_sub_03_bad() [L1550] int data; [L1551] data = 0 [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)) [L1559] data - 1 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 13 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=13occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 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 15:57:45,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/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_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_03_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/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_b6e41cd5-4787-44e7-9580-0857996348bf/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 f7b10beb0a545a3233e92398efbbdd5ae5428f1e517bc7baa8deae886bc799f2 --- 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 15:57:47,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:57:47,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:57:47,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:57:47,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:57:47,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:57:47,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:57:47,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:57:47,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:57:47,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:57:47,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:57:47,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:57:47,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:57:47,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:57:47,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:57:47,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:57:47,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:57:47,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:57:47,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:57:47,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:57:47,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:57:47,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:57:47,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:57:47,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:57:47,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:57:48,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:57:48,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:57:48,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:57:48,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:57:48,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:57:48,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:57:48,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:57:48,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:57:48,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:57:48,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:57:48,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:57:48,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:57:48,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:57:48,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:57:48,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:57:48,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:57:48,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-23 15:57:48,058 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:57:48,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:57:48,060 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:57:48,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:57:48,061 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:57:48,062 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:57:48,062 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:57:48,062 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:57:48,062 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:57:48,063 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:57:48,067 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:57:48,068 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:57:48,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:57:48,069 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:57:48,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:57:48,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:57:48,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:57:48,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:57:48,070 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:57:48,070 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:57:48,070 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:57:48,070 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:57:48,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:57:48,071 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:57:48,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:57:48,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:57:48,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:57:48,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:57:48,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:57:48,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:57:48,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:57:48,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:57:48,073 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:57:48,073 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:57:48,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:57:48,073 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:57:48,074 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:57:48,074 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_b6e41cd5-4787-44e7-9580-0857996348bf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7b10beb0a545a3233e92398efbbdd5ae5428f1e517bc7baa8deae886bc799f2 [2022-11-23 15:57:48,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:57:48,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:57:48,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:57:48,471 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:57:48,471 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:57:48,473 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_03_bad.i [2022-11-23 15:57:51,510 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:57:51,918 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:57:51,919 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_03_bad.i [2022-11-23 15:57:51,937 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/data/66fddec64/4aa9f36237bd4859908777616fea2f72/FLAG6065e2167 [2022-11-23 15:57:51,958 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/data/66fddec64/4aa9f36237bd4859908777616fea2f72 [2022-11-23 15:57:51,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:57:51,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:57:51,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:57:51,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:57:51,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:57:51,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:57:51" (1/1) ... [2022-11-23 15:57:51,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@443850bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:51, skipping insertion in model container [2022-11-23 15:57:51,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:57:51" (1/1) ... [2022-11-23 15:57:51,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:57:52,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:57:52,453 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:57:52,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:57:53,013 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:57:53,051 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:57:53,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:57:53,401 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:57:53,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:53 WrapperNode [2022-11-23 15:57:53,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:57:53,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:57:53,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:57:53,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:57:53,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:53" (1/1) ... [2022-11-23 15:57:53,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:53" (1/1) ... [2022-11-23 15:57:53,464 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-11-23 15:57:53,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:57:53,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:57:53,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:57:53,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:57:53,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:53" (1/1) ... [2022-11-23 15:57:53,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:53" (1/1) ... [2022-11-23 15:57:53,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:53" (1/1) ... [2022-11-23 15:57:53,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:53" (1/1) ... [2022-11-23 15:57:53,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:53" (1/1) ... [2022-11-23 15:57:53,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:53" (1/1) ... [2022-11-23 15:57:53,507 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:53" (1/1) ... [2022-11-23 15:57:53,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:53" (1/1) ... [2022-11-23 15:57:53,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:57:53,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:57:53,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:57:53,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:57:53,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:53" (1/1) ... [2022-11-23 15:57:53,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:57:53,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:57:53,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:57:53,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:57:53,637 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:57:53,638 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:57:53,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 15:57:53,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:57:53,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:57:53,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:57:53,641 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:57:53,819 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:57:53,821 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:57:54,033 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:57:54,039 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:57:54,039 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 15:57:54,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:57:54 BoogieIcfgContainer [2022-11-23 15:57:54,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:57:54,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:57:54,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:57:54,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:57:54,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:57:51" (1/3) ... [2022-11-23 15:57:54,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d5db62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:57:54, skipping insertion in model container [2022-11-23 15:57:54,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:53" (2/3) ... [2022-11-23 15:57:54,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d5db62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:57:54, skipping insertion in model container [2022-11-23 15:57:54,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:57:54" (3/3) ... [2022-11-23 15:57:54,055 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_03_bad.i [2022-11-23 15:57:54,076 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:57:54,077 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:57:54,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:57:54,147 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;@78d1faf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:57:54,147 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:57:54,152 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.375) internal successors, (22), 18 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:57:54,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 15:57:54,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:57:54,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:57:54,161 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:57:54,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:57:54,168 INFO L85 PathProgramCache]: Analyzing trace with hash 2051308032, now seen corresponding path program 1 times [2022-11-23 15:57:54,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:57:54,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556989780] [2022-11-23 15:57:54,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:54,184 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 15:57:54,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:57:54,196 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/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 15:57:54,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/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 15:57:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:57:54,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 15:57:54,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:57:54,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:57:54,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:57:54,397 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:57:54,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [556989780] [2022-11-23 15:57:54,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [556989780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:57:54,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:57:54,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:57:54,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069769215] [2022-11-23 15:57:54,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:57:54,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:57:54,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:57:54,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:57:54,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:57:54,464 INFO L87 Difference]: Start difference. First operand has 22 states, 16 states have (on average 1.375) internal successors, (22), 18 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:57:54,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:57:54,485 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2022-11-23 15:57:54,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:57:54,487 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-23 15:57:54,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:57:54,494 INFO L225 Difference]: With dead ends: 36 [2022-11-23 15:57:54,494 INFO L226 Difference]: Without dead ends: 13 [2022-11-23 15:57:54,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:57:54,504 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:57:54,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:57:54,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-23 15:57:54,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-23 15:57:54,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:57:54,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-23 15:57:54,544 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2022-11-23 15:57:54,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:57:54,545 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-23 15:57:54,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:57:54,546 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-23 15:57:54,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:57:54,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:57:54,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:57:54,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/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 15:57:54,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/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 15:57:54,760 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:57:54,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:57:54,761 INFO L85 PathProgramCache]: Analyzing trace with hash -83247131, now seen corresponding path program 1 times [2022-11-23 15:57:54,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:57:54,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008592482] [2022-11-23 15:57:54,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:54,762 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 15:57:54,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:57:54,763 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/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 15:57:54,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/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 15:57:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:57:54,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:57:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:57:54,913 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 15:57:54,913 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:57:54,915 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 15:57:54,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 15:57:54,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/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 15:57:55,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/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 15:57:55,129 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 15:57:55,133 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:57:55,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:57:55 BoogieIcfgContainer [2022-11-23 15:57:55,166 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:57:55,167 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:57:55,167 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:57:55,167 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:57:55,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:57:54" (3/4) ... [2022-11-23 15:57:55,169 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 15:57:55,210 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:57:55,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:57:55,211 INFO L158 Benchmark]: Toolchain (without parser) took 3248.92ms. Allocated memory is still 107.0MB. Free memory was 82.1MB in the beginning and 56.1MB in the end (delta: 26.0MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2022-11-23 15:57:55,211 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 67.1MB. Free memory is still 45.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:57:55,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1438.47ms. Allocated memory is still 107.0MB. Free memory was 81.8MB in the beginning and 75.2MB in the end (delta: 6.6MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2022-11-23 15:57:55,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.30ms. Allocated memory is still 107.0MB. Free memory was 75.2MB in the beginning and 72.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:57:55,213 INFO L158 Benchmark]: Boogie Preprocessor took 66.41ms. Allocated memory is still 107.0MB. Free memory was 72.6MB in the beginning and 70.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:57:55,213 INFO L158 Benchmark]: RCFGBuilder took 508.55ms. Allocated memory is still 107.0MB. Free memory was 70.0MB in the beginning and 57.2MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 15:57:55,214 INFO L158 Benchmark]: TraceAbstraction took 1119.13ms. Allocated memory is still 107.0MB. Free memory was 56.4MB in the beginning and 58.2MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:57:55,214 INFO L158 Benchmark]: Witness Printer took 43.73ms. Allocated memory is still 107.0MB. Free memory was 58.2MB in the beginning and 56.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:57:55,217 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 67.1MB. Free memory is still 45.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1438.47ms. Allocated memory is still 107.0MB. Free memory was 81.8MB in the beginning and 75.2MB in the end (delta: 6.6MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.30ms. Allocated memory is still 107.0MB. Free memory was 75.2MB in the beginning and 72.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.41ms. Allocated memory is still 107.0MB. Free memory was 72.6MB in the beginning and 70.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.55ms. Allocated memory is still 107.0MB. Free memory was 70.0MB in the beginning and 57.2MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1119.13ms. Allocated memory is still 107.0MB. Free memory was 56.4MB in the beginning and 58.2MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 43.73ms. Allocated memory is still 107.0MB. Free memory was 58.2MB in the beginning and 56.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1559]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [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_sub_03_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=1, rand()=65536, rand()=0, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1559] data - 1 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 23 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 41 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-23 15:57:55,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6e41cd5-4787-44e7-9580-0857996348bf/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)