./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_66_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --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 a874fb025ca58c9c2fa513b05e67b8c9bd039da63cbe1c229a4eb3f4db89cafe --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:04:10,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:04:10,291 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-25 00:04:10,297 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:04:10,298 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:04:10,324 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:04:10,325 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:04:10,326 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:04:10,327 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:04:10,328 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:04:10,329 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:04:10,329 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:04:10,330 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:04:10,331 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:04:10,331 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:04:10,332 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:04:10,333 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:04:10,333 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:04:10,334 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:04:10,335 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:04:10,335 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:04:10,336 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:04:10,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:04:10,339 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:04:10,339 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:04:10,340 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:04:10,340 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:04:10,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:04:10,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:04:10,342 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-25 00:04:10,342 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:04:10,343 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:04:10,343 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:04:10,344 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:04:10,344 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:04:10,344 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:04:10,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:04:10,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:04:10,346 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:04:10,346 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:04:10,346 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:04:10,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:04:10,347 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:04:10,347 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:04:10,348 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:04:10,348 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:04:10,348 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a874fb025ca58c9c2fa513b05e67b8c9bd039da63cbe1c229a4eb3f4db89cafe [2023-11-25 00:04:10,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:04:10,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:04:10,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:04:10,685 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:04:10,686 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:04:10,688 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_66_bad.i [2023-11-25 00:04:13,765 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:04:14,244 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:04:14,246 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_66_bad.i [2023-11-25 00:04:14,276 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/data/38b460b53/4f18320e7aeb4f5286cfddfeef6111f2/FLAG27c79be72 [2023-11-25 00:04:14,295 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/data/38b460b53/4f18320e7aeb4f5286cfddfeef6111f2 [2023-11-25 00:04:14,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:04:14,301 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:04:14,303 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:04:14,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:04:14,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:04:14,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:04:14" (1/1) ... [2023-11-25 00:04:14,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13de4c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:14, skipping insertion in model container [2023-11-25 00:04:14,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:04:14" (1/1) ... [2023-11-25 00:04:14,367 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:04:15,448 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:04:15,460 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:04:15,568 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:04:15,764 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:04:15,764 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:04:15,764 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:04:15,764 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:04:15,773 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:04:15,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:15 WrapperNode [2023-11-25 00:04:15,773 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:04:15,775 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:04:15,775 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:04:15,775 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:04:15,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:15" (1/1) ... [2023-11-25 00:04:15,809 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:15" (1/1) ... [2023-11-25 00:04:15,839 INFO L138 Inliner]: procedures = 499, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 48 [2023-11-25 00:04:15,840 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:04:15,840 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:04:15,841 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:04:15,841 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:04:15,852 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:15" (1/1) ... [2023-11-25 00:04:15,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:15" (1/1) ... [2023-11-25 00:04:15,858 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:15" (1/1) ... [2023-11-25 00:04:15,858 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:15" (1/1) ... [2023-11-25 00:04:15,866 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:15" (1/1) ... [2023-11-25 00:04:15,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:15" (1/1) ... [2023-11-25 00:04:15,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:15" (1/1) ... [2023-11-25 00:04:15,889 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:15" (1/1) ... [2023-11-25 00:04:15,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:04:15,893 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:04:15,894 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:04:15,894 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:04:15,895 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:15" (1/1) ... [2023-11-25 00:04:15,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:04:15,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:04:15,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:04:15,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:04:15,988 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-25 00:04:15,988 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-25 00:04:15,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:04:15,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:04:15,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:04:15,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:04:15,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:04:15,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:04:15,989 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-25 00:04:15,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:04:15,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:04:16,142 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:04:16,144 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:04:16,258 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:04:16,305 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:04:16,305 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:04:16,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:04:16 BoogieIcfgContainer [2023-11-25 00:04:16,307 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:04:16,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:04:16,309 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:04:16,313 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:04:16,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:04:14" (1/3) ... [2023-11-25 00:04:16,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8cffa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:04:16, skipping insertion in model container [2023-11-25 00:04:16,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:15" (2/3) ... [2023-11-25 00:04:16,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8cffa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:04:16, skipping insertion in model container [2023-11-25 00:04:16,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:04:16" (3/3) ... [2023-11-25 00:04:16,316 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_sub_66_bad.i [2023-11-25 00:04:16,334 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:04:16,334 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-25 00:04:16,381 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:04:16,388 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=LoopHeads, 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;@2005697d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:04:16,388 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-25 00:04:16,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 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) [2023-11-25 00:04:16,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-25 00:04:16,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:04:16,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-25 00:04:16,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-25 00:04:16,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:04:16,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1830714995, now seen corresponding path program 1 times [2023-11-25 00:04:16,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:04:16,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978865754] [2023-11-25 00:04:16,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:04:16,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:04:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:04:16,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-25 00:04:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:04:16,628 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-25 00:04:16,630 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-25 00:04:16,631 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-25 00:04:16,633 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-25 00:04:16,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:04:16,639 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-25 00:04:16,644 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:04:16,658 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet99 [2023-11-25 00:04:16,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:04:16 BoogieIcfgContainer [2023-11-25 00:04:16,668 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:04:16,669 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:04:16,669 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:04:16,669 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:04:16,670 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:04:16" (3/4) ... [2023-11-25 00:04:16,672 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-25 00:04:16,674 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:04:16,675 INFO L158 Benchmark]: Toolchain (without parser) took 2373.98ms. Allocated memory was 140.5MB in the beginning and 184.5MB in the end (delta: 44.0MB). Free memory was 102.0MB in the beginning and 80.4MB in the end (delta: 21.6MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. [2023-11-25 00:04:16,676 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 140.5MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:04:16,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1471.07ms. Allocated memory was 140.5MB in the beginning and 184.5MB in the end (delta: 44.0MB). Free memory was 101.8MB in the beginning and 117.1MB in the end (delta: -15.3MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2023-11-25 00:04:16,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.20ms. Allocated memory is still 184.5MB. Free memory was 117.1MB in the beginning and 113.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-25 00:04:16,678 INFO L158 Benchmark]: Boogie Preprocessor took 52.40ms. Allocated memory is still 184.5MB. Free memory was 113.9MB in the beginning and 112.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:04:16,679 INFO L158 Benchmark]: RCFGBuilder took 413.73ms. Allocated memory is still 184.5MB. Free memory was 112.9MB in the beginning and 98.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-25 00:04:16,679 INFO L158 Benchmark]: TraceAbstraction took 358.79ms. Allocated memory is still 184.5MB. Free memory was 97.1MB in the beginning and 81.4MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-25 00:04:16,680 INFO L158 Benchmark]: Witness Printer took 5.11ms. Allocated memory is still 184.5MB. Free memory was 81.4MB in the beginning and 80.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:04:16,684 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 140.5MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1471.07ms. Allocated memory was 140.5MB in the beginning and 184.5MB in the end (delta: 44.0MB). Free memory was 101.8MB in the beginning and 117.1MB in the end (delta: -15.3MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.20ms. Allocated memory is still 184.5MB. Free memory was 117.1MB in the beginning and 113.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.40ms. Allocated memory is still 184.5MB. Free memory was 113.9MB in the beginning and 112.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 413.73ms. Allocated memory is still 184.5MB. Free memory was 112.9MB in the beginning and 98.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 358.79ms. Allocated memory is still 184.5MB. Free memory was 97.1MB in the beginning and 81.4MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 5.11ms. Allocated memory is still 184.5MB. Free memory was 81.4MB in the beginning and 80.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet99 - 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1561. 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); [L1561] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1561] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741825, argc=1073741825, argv={1073741827:1073741826}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1562] CALL CWE191_Integer_Underflow__int_min_sub_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1554] data = (-0x7fffffff - 1) [L1555] dataArray[2] = data [L1556] CALL CWE191_Integer_Underflow__int_min_sub_66b_badSink(dataArray) [L1568] EXPR dataArray[2] [L1568] int data = dataArray[2]; [L1570] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataArray={4:0}, dataArray={4:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1570]: 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, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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=12occurred 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, 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 [2023-11-25 00:04:16,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --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 a874fb025ca58c9c2fa513b05e67b8c9bd039da63cbe1c229a4eb3f4db89cafe --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:04:19,548 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:04:19,686 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-25 00:04:19,694 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:04:19,695 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:04:19,741 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:04:19,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:04:19,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:04:19,744 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:04:19,744 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:04:19,745 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:04:19,745 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:04:19,746 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:04:19,746 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:04:19,747 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:04:19,750 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:04:19,751 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:04:19,752 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:04:19,752 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:04:19,754 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:04:19,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:04:19,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:04:19,756 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-25 00:04:19,756 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-25 00:04:19,756 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-25 00:04:19,757 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-25 00:04:19,757 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:04:19,758 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:04:19,758 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:04:19,758 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:04:19,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-25 00:04:19,760 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:04:19,760 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:04:19,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:04:19,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:04:19,761 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:04:19,761 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:04:19,762 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-25 00:04:19,762 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-25 00:04:19,763 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:04:19,763 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:04:19,763 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:04:19,764 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:04:19,764 INFO L153 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_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a874fb025ca58c9c2fa513b05e67b8c9bd039da63cbe1c229a4eb3f4db89cafe [2023-11-25 00:04:20,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:04:20,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:04:20,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:04:20,239 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:04:20,240 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:04:20,241 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_66_bad.i [2023-11-25 00:04:23,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:04:23,887 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:04:23,887 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_66_bad.i [2023-11-25 00:04:23,921 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/data/4ab9e8ca8/41669861beb64c34881a8e2e8498eeee/FLAG8e5bb43e8 [2023-11-25 00:04:23,939 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/data/4ab9e8ca8/41669861beb64c34881a8e2e8498eeee [2023-11-25 00:04:23,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:04:23,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:04:23,950 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:04:23,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:04:23,956 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:04:23,957 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:04:23" (1/1) ... [2023-11-25 00:04:23,959 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e7e393f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:23, skipping insertion in model container [2023-11-25 00:04:23,959 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:04:23" (1/1) ... [2023-11-25 00:04:24,046 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:04:25,464 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:04:25,485 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:04:25,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:04:25,793 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:04:25,793 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:04:25,794 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:04:25,794 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:04:25,802 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:04:25,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:25 WrapperNode [2023-11-25 00:04:25,806 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:04:25,808 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:04:25,808 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:04:25,808 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:04:25,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:25" (1/1) ... [2023-11-25 00:04:25,872 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:25" (1/1) ... [2023-11-25 00:04:25,941 INFO L138 Inliner]: procedures = 504, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 48 [2023-11-25 00:04:25,941 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:04:25,942 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:04:25,942 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:04:25,943 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:04:25,954 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:25" (1/1) ... [2023-11-25 00:04:25,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:25" (1/1) ... [2023-11-25 00:04:25,959 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:25" (1/1) ... [2023-11-25 00:04:25,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:25" (1/1) ... [2023-11-25 00:04:25,973 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:25" (1/1) ... [2023-11-25 00:04:25,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:25" (1/1) ... [2023-11-25 00:04:25,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:25" (1/1) ... [2023-11-25 00:04:25,996 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:25" (1/1) ... [2023-11-25 00:04:26,000 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:04:26,009 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:04:26,009 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:04:26,009 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:04:26,010 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:25" (1/1) ... [2023-11-25 00:04:26,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:04:26,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:04:26,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:04:26,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:04:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-25 00:04:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-25 00:04:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:04:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-25 00:04:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:04:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:04:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:04:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-25 00:04:26,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:04:26,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-25 00:04:26,108 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-25 00:04:26,328 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:04:26,330 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:04:26,515 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:04:26,590 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:04:26,591 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:04:26,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:04:26 BoogieIcfgContainer [2023-11-25 00:04:26,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:04:26,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:04:26,596 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:04:26,600 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:04:26,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:04:23" (1/3) ... [2023-11-25 00:04:26,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dab3961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:04:26, skipping insertion in model container [2023-11-25 00:04:26,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:25" (2/3) ... [2023-11-25 00:04:26,604 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dab3961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:04:26, skipping insertion in model container [2023-11-25 00:04:26,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:04:26" (3/3) ... [2023-11-25 00:04:26,606 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_sub_66_bad.i [2023-11-25 00:04:26,628 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:04:26,630 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-25 00:04:26,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:04:26,704 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=LoopHeads, 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;@1ae347ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:04:26,704 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-25 00:04:26,709 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) [2023-11-25 00:04:26,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-25 00:04:26,718 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:04:26,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:04:26,720 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-25 00:04:26,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:04:26,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1506175351, now seen corresponding path program 1 times [2023-11-25 00:04:26,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:04:26,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499551737] [2023-11-25 00:04:26,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:04:26,754 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 [2023-11-25 00:04:26,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:04:26,757 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-25 00:04:26,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-25 00:04:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:04:26,993 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-25 00:04:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:04:27,066 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-25 00:04:27,068 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-25 00:04:27,070 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-25 00:04:27,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-25 00:04:27,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-25 00:04:27,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-25 00:04:27,282 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-25 00:04:27,288 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:04:27,304 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet97 [2023-11-25 00:04:27,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:04:27 BoogieIcfgContainer [2023-11-25 00:04:27,312 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:04:27,313 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:04:27,313 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:04:27,313 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:04:27,314 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:04:26" (3/4) ... [2023-11-25 00:04:27,316 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-25 00:04:27,318 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:04:27,320 INFO L158 Benchmark]: Toolchain (without parser) took 3372.04ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 41.9MB in the beginning and 57.3MB in the end (delta: -15.4MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2023-11-25 00:04:27,321 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 69.2MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:04:27,322 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1856.32ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 41.7MB in the beginning and 36.7MB in the end (delta: 5.0MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2023-11-25 00:04:27,323 INFO L158 Benchmark]: Boogie Procedure Inliner took 133.84ms. Allocated memory is still 92.3MB. Free memory was 36.7MB in the beginning and 63.8MB in the end (delta: -27.1MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2023-11-25 00:04:27,325 INFO L158 Benchmark]: Boogie Preprocessor took 65.69ms. Allocated memory is still 92.3MB. Free memory was 63.8MB in the beginning and 61.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:04:27,326 INFO L158 Benchmark]: RCFGBuilder took 583.57ms. Allocated memory is still 92.3MB. Free memory was 61.7MB in the beginning and 46.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-25 00:04:27,327 INFO L158 Benchmark]: TraceAbstraction took 717.89ms. Allocated memory is still 92.3MB. Free memory was 45.5MB in the beginning and 57.8MB in the end (delta: -12.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:04:27,329 INFO L158 Benchmark]: Witness Printer took 4.98ms. Allocated memory is still 92.3MB. Free memory was 57.8MB in the beginning and 57.3MB in the end (delta: 521.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:04:27,333 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 69.2MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1856.32ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 41.7MB in the beginning and 36.7MB in the end (delta: 5.0MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 133.84ms. Allocated memory is still 92.3MB. Free memory was 36.7MB in the beginning and 63.8MB in the end (delta: -27.1MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.69ms. Allocated memory is still 92.3MB. Free memory was 63.8MB in the beginning and 61.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 583.57ms. Allocated memory is still 92.3MB. Free memory was 61.7MB in the beginning and 46.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 717.89ms. Allocated memory is still 92.3MB. Free memory was 45.5MB in the beginning and 57.8MB in the end (delta: -12.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.98ms. Allocated memory is still 92.3MB. Free memory was 57.8MB in the beginning and 57.3MB in the end (delta: 521.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet97 - 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1561. 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); [L1561] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1561] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1562] CALL CWE191_Integer_Underflow__int_min_sub_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1554] data = (-0x7fffffff - 1) [L1555] dataArray[2] = data [L1556] CALL CWE191_Integer_Underflow__int_min_sub_66b_badSink(dataArray) [L1568] EXPR dataArray[2] [L1568] int data = dataArray[2]; [L1570] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataArray={-9223372036854775808:0}, dataArray={-9223372036854775808:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1570]: 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: 0.6s, 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 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 [2023-11-25 00:04:27,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c800c2-b773-4cbe-a1c9-4f19d671c340/bin/utaipan-verify-SwPr7d2a91/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 Result: UNKNOWN: Overapproximated counterexample