./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_15_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh --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 067fdd617aec1d86d3d8723be328edc2d14d6d16b7c3f8618063daf66ec11848 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:10:42,627 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:10:42,687 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 18:10:42,691 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:10:42,692 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:10:42,723 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:10:42,723 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:10:42,724 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:10:42,725 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:10:42,725 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:10:42,726 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:10:42,726 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:10:42,727 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:10:42,727 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:10:42,728 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:10:42,728 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:10:42,729 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:10:42,729 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:10:42,730 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:10:42,730 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:10:42,731 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:10:42,732 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:10:42,732 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:10:42,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:10:42,733 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:10:42,734 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:10:42,734 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:10:42,734 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:10:42,735 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:10:42,735 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 18:10:42,736 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 18:10:42,736 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:10:42,736 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:10:42,737 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:10:42,748 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:10:42,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:10:42,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:10:42,749 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:10:42,749 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:10:42,750 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:10:42,750 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:10:42,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:10:42,750 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:10:42,751 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:10:42,751 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:10:42,751 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:10:42,751 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_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 067fdd617aec1d86d3d8723be328edc2d14d6d16b7c3f8618063daf66ec11848 [2023-12-02 18:10:42,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:10:42,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:10:42,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:10:42,990 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:10:42,990 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:10:42,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_15_bad.i [2023-12-02 18:10:45,821 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:10:46,104 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:10:46,104 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_15_bad.i [2023-12-02 18:10:46,123 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/data/68f6e15a2/378a7ff13b15417ba6cab34d2184208d/FLAG108a78bb5 [2023-12-02 18:10:46,136 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/data/68f6e15a2/378a7ff13b15417ba6cab34d2184208d [2023-12-02 18:10:46,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:10:46,139 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:10:46,140 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:10:46,140 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:10:46,145 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:10:46,145 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:10:46" (1/1) ... [2023-12-02 18:10:46,146 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40d7b62c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:46, skipping insertion in model container [2023-12-02 18:10:46,147 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:10:46" (1/1) ... [2023-12-02 18:10:46,194 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:10:46,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:10:46,885 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:10:46,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:10:47,156 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:47,156 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:47,156 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:47,157 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:47,164 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:10:47,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:47 WrapperNode [2023-12-02 18:10:47,165 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:10:47,166 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:10:47,166 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:10:47,166 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:10:47,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:47" (1/1) ... [2023-12-02 18:10:47,200 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:47" (1/1) ... [2023-12-02 18:10:47,221 INFO L138 Inliner]: procedures = 498, calls = 59, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2023-12-02 18:10:47,222 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:10:47,222 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:10:47,222 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:10:47,222 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:10:47,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:47" (1/1) ... [2023-12-02 18:10:47,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:47" (1/1) ... [2023-12-02 18:10:47,234 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:47" (1/1) ... [2023-12-02 18:10:47,234 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:47" (1/1) ... [2023-12-02 18:10:47,240 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:47" (1/1) ... [2023-12-02 18:10:47,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:47" (1/1) ... [2023-12-02 18:10:47,244 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:47" (1/1) ... [2023-12-02 18:10:47,245 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:47" (1/1) ... [2023-12-02 18:10:47,248 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:10:47,249 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:10:47,249 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:10:47,249 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:10:47,250 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:47" (1/1) ... [2023-12-02 18:10:47,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:10:47,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:10:47,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:10:47,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:10:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 18:10:47,320 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 18:10:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:10:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:10:47,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:10:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 18:10:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:10:47,479 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:10:47,482 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:10:47,591 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:10:47,625 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:10:47,625 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 18:10:47,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:10:47 BoogieIcfgContainer [2023-12-02 18:10:47,627 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:10:47,630 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:10:47,630 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:10:47,634 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:10:47,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:10:46" (1/3) ... [2023-12-02 18:10:47,635 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ca795a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:10:47, skipping insertion in model container [2023-12-02 18:10:47,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:47" (2/3) ... [2023-12-02 18:10:47,635 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ca795a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:10:47, skipping insertion in model container [2023-12-02 18:10:47,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:10:47" (3/3) ... [2023-12-02 18:10:47,637 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_predec_15_bad.i [2023-12-02 18:10:47,656 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:10:47,656 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 18:10:47,705 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:10:47,712 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;@33045873, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:10:47,713 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 18:10:47,717 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 16 states have internal predecessors, (20), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 18:10:47,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 18:10:47,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:10:47,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:10:47,726 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 18:10:47,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:10:47,732 INFO L85 PathProgramCache]: Analyzing trace with hash -80147218, now seen corresponding path program 1 times [2023-12-02 18:10:47,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:10:47,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276869513] [2023-12-02 18:10:47,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:10:47,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:10:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:10:47,860 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 18:10:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:10:47,907 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 18:10:47,908 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 18:10:47,909 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 18:10:47,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 18:10:47,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 18:10:47,915 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 18:10:47,919 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:10:47,933 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet104 [2023-12-02 18:10:47,936 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch98 could not be translated [2023-12-02 18:10:47,936 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch100 could not be translated [2023-12-02 18:10:47,937 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch100 could not be translated [2023-12-02 18:10:47,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:10:47 BoogieIcfgContainer [2023-12-02 18:10:47,944 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:10:47,945 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:10:47,945 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:10:47,945 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:10:47,946 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:10:47" (3/4) ... [2023-12-02 18:10:47,948 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 18:10:47,949 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:10:47,950 INFO L158 Benchmark]: Toolchain (without parser) took 1810.76ms. Allocated memory was 134.2MB in the beginning and 192.9MB in the end (delta: 58.7MB). Free memory was 90.8MB in the beginning and 108.4MB in the end (delta: -17.6MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. [2023-12-02 18:10:47,951 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 134.2MB. Free memory was 102.0MB in the beginning and 101.9MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:10:47,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1025.29ms. Allocated memory was 134.2MB in the beginning and 192.9MB in the end (delta: 58.7MB). Free memory was 90.8MB in the beginning and 144.0MB in the end (delta: -53.3MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. [2023-12-02 18:10:47,952 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.70ms. Allocated memory is still 192.9MB. Free memory was 144.0MB in the beginning and 140.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 18:10:47,953 INFO L158 Benchmark]: Boogie Preprocessor took 25.68ms. Allocated memory is still 192.9MB. Free memory was 140.8MB in the beginning and 138.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:10:47,953 INFO L158 Benchmark]: RCFGBuilder took 378.81ms. Allocated memory is still 192.9MB. Free memory was 138.7MB in the beginning and 125.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 18:10:47,954 INFO L158 Benchmark]: TraceAbstraction took 313.98ms. Allocated memory is still 192.9MB. Free memory was 124.1MB in the beginning and 108.4MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 18:10:47,954 INFO L158 Benchmark]: Witness Printer took 4.22ms. Allocated memory is still 192.9MB. Free memory is still 108.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:10:47,958 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 134.2MB. Free memory was 102.0MB in the beginning and 101.9MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1025.29ms. Allocated memory was 134.2MB in the beginning and 192.9MB in the end (delta: 58.7MB). Free memory was 90.8MB in the beginning and 144.0MB in the end (delta: -53.3MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.70ms. Allocated memory is still 192.9MB. Free memory was 144.0MB in the beginning and 140.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.68ms. Allocated memory is still 192.9MB. Free memory was 140.8MB in the beginning and 138.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 378.81ms. Allocated memory is still 192.9MB. Free memory was 138.7MB in the beginning and 125.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 313.98ms. Allocated memory is still 192.9MB. Free memory was 124.1MB in the beginning and 108.4MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 4.22ms. Allocated memory is still 192.9MB. Free memory is still 108.4MB. 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~nondet104 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch98 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch100 could not be translated - 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: 1565]: 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 1578. 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); [L1578] 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={4:0}] [L1414] COND TRUE line != ((void *)0) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_min_predec_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1555] data = (-0x7fffffff - 1) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] case 7: VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1565] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1565]: 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: 0.2s, 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=22occurred 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, 9 NumberOfCodeBlocks, 9 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 [2023-12-02 18:10:47,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh --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 067fdd617aec1d86d3d8723be328edc2d14d6d16b7c3f8618063daf66ec11848 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:10:49,901 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:10:49,977 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-12-02 18:10:49,984 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:10:49,984 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:10:50,012 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:10:50,013 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:10:50,014 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:10:50,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:10:50,015 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:10:50,015 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:10:50,016 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:10:50,016 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:10:50,017 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:10:50,017 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:10:50,018 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:10:50,019 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:10:50,019 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:10:50,020 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:10:50,020 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:10:50,021 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:10:50,022 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:10:50,022 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 18:10:50,023 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 18:10:50,023 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 18:10:50,024 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 18:10:50,024 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 18:10:50,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:10:50,025 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:10:50,026 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:10:50,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 18:10:50,026 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:10:50,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:10:50,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:10:50,027 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:10:50,027 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:10:50,028 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:10:50,028 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 18:10:50,028 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 18:10:50,028 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:10:50,029 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:10:50,029 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:10:50,029 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:10:50,029 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_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 067fdd617aec1d86d3d8723be328edc2d14d6d16b7c3f8618063daf66ec11848 [2023-12-02 18:10:50,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:10:50,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:10:50,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:10:50,329 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:10:50,329 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:10:50,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_15_bad.i [2023-12-02 18:10:53,123 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:10:53,450 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:10:53,451 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_15_bad.i [2023-12-02 18:10:53,474 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/data/6851e65a2/1da0dfd126ae4c46819b7dc94e4b5753/FLAGc04df8699 [2023-12-02 18:10:53,672 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/data/6851e65a2/1da0dfd126ae4c46819b7dc94e4b5753 [2023-12-02 18:10:53,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:10:53,675 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:10:53,676 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:10:53,676 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:10:53,680 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:10:53,681 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:10:53" (1/1) ... [2023-12-02 18:10:53,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75947cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:53, skipping insertion in model container [2023-12-02 18:10:53,682 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:10:53" (1/1) ... [2023-12-02 18:10:53,754 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:10:54,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:10:54,586 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:10:54,691 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:10:54,815 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:54,816 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:54,816 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:54,816 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:54,824 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:10:54,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:54 WrapperNode [2023-12-02 18:10:54,824 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:10:54,825 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:10:54,826 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:10:54,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:10:54,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:54" (1/1) ... [2023-12-02 18:10:54,860 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:54" (1/1) ... [2023-12-02 18:10:54,883 INFO L138 Inliner]: procedures = 503, calls = 59, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2023-12-02 18:10:54,883 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:10:54,884 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:10:54,884 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:10:54,884 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:10:54,893 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:54" (1/1) ... [2023-12-02 18:10:54,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:54" (1/1) ... [2023-12-02 18:10:54,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:54" (1/1) ... [2023-12-02 18:10:54,898 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:54" (1/1) ... [2023-12-02 18:10:54,908 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:54" (1/1) ... [2023-12-02 18:10:54,909 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:54" (1/1) ... [2023-12-02 18:10:54,913 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:54" (1/1) ... [2023-12-02 18:10:54,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:54" (1/1) ... [2023-12-02 18:10:54,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:10:54,920 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:10:54,920 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:10:54,921 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:10:54,921 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:54" (1/1) ... [2023-12-02 18:10:54,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:10:54,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:10:54,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:10:54,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:10:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 18:10:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 18:10:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 18:10:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:10:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:10:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:10:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 18:10:55,148 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:10:55,150 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:10:55,271 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:10:55,305 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:10:55,305 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 18:10:55,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:10:55 BoogieIcfgContainer [2023-12-02 18:10:55,306 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:10:55,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:10:55,309 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:10:55,312 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:10:55,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:10:53" (1/3) ... [2023-12-02 18:10:55,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d77f9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:10:55, skipping insertion in model container [2023-12-02 18:10:55,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:54" (2/3) ... [2023-12-02 18:10:55,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d77f9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:10:55, skipping insertion in model container [2023-12-02 18:10:55,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:10:55" (3/3) ... [2023-12-02 18:10:55,314 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_predec_15_bad.i [2023-12-02 18:10:55,333 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:10:55,333 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 18:10:55,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:10:55,382 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;@6187dc2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:10:55,382 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 18:10:55,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.4375) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 18:10:55,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 18:10:55,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:10:55,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:10:55,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 18:10:55,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:10:55,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1005682637, now seen corresponding path program 1 times [2023-12-02 18:10:55,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:10:55,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732303351] [2023-12-02 18:10:55,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:10:55,414 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 [2023-12-02 18:10:55,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:10:55,442 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:10:55,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:10:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:10:55,556 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 18:10:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:10:55,606 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 18:10:55,608 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 18:10:55,608 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 18:10:55,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 18:10:55,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:10:55,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:10:55,817 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 18:10:55,820 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:10:55,831 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-12-02 18:10:55,833 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch96 could not be translated [2023-12-02 18:10:55,834 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch98 could not be translated [2023-12-02 18:10:55,834 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch98 could not be translated [2023-12-02 18:10:55,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:10:55 BoogieIcfgContainer [2023-12-02 18:10:55,839 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:10:55,839 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:10:55,839 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:10:55,840 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:10:55,840 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:10:55" (3/4) ... [2023-12-02 18:10:55,841 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 18:10:55,842 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:10:55,843 INFO L158 Benchmark]: Toolchain (without parser) took 2167.67ms. Allocated memory is still 94.4MB. Free memory was 67.7MB in the beginning and 58.4MB in the end (delta: 9.2MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2023-12-02 18:10:55,843 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 67.1MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:10:55,844 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1148.53ms. Allocated memory is still 94.4MB. Free memory was 67.4MB in the beginning and 63.5MB in the end (delta: 3.8MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2023-12-02 18:10:55,844 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.02ms. Allocated memory is still 94.4MB. Free memory was 63.5MB in the beginning and 60.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:10:55,845 INFO L158 Benchmark]: Boogie Preprocessor took 35.61ms. Allocated memory is still 94.4MB. Free memory was 60.9MB in the beginning and 58.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:10:55,845 INFO L158 Benchmark]: RCFGBuilder took 385.65ms. Allocated memory is still 94.4MB. Free memory was 58.8MB in the beginning and 42.6MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 18:10:55,846 INFO L158 Benchmark]: TraceAbstraction took 530.37ms. Allocated memory is still 94.4MB. Free memory was 42.0MB in the beginning and 59.0MB in the end (delta: -17.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:10:55,846 INFO L158 Benchmark]: Witness Printer took 2.96ms. Allocated memory is still 94.4MB. Free memory was 59.0MB in the beginning and 58.4MB in the end (delta: 592.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:10:55,849 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 67.1MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1148.53ms. Allocated memory is still 94.4MB. Free memory was 67.4MB in the beginning and 63.5MB in the end (delta: 3.8MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.02ms. Allocated memory is still 94.4MB. Free memory was 63.5MB in the beginning and 60.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.61ms. Allocated memory is still 94.4MB. Free memory was 60.9MB in the beginning and 58.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 385.65ms. Allocated memory is still 94.4MB. Free memory was 58.8MB in the beginning and 42.6MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 530.37ms. Allocated memory is still 94.4MB. Free memory was 42.0MB in the beginning and 59.0MB in the end (delta: -17.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.96ms. Allocated memory is still 94.4MB. Free memory was 59.0MB in the beginning and 58.4MB in the end (delta: 592.3kB). 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~nondet102 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch96 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch98 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch98 could not be translated - 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: 1565]: 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 1578. 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); [L1578] 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={4:0}] [L1414] COND TRUE line != ((void *)0) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_min_predec_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1555] data = (-0x7fffffff - 1) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] case 7: VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1565] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1565]: 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, 24 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=24occurred 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, 11 NumberOfCodeBlocks, 11 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 [2023-12-02 18:10:55,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2e2d0e-ffc4-4cd0-9dbd-a209bc72f3f0/bin/utaipan-verify-nQ1chXbOIh/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample