./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_11_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_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/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_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/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_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/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 3b7acc1496132646be72bf3fc9cff3354439df5f9f6ff4e038477e55a66cbf0d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 08:21:28,556 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 08:21:28,621 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 08:21:28,625 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 08:21:28,626 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 08:21:28,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 08:21:28,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 08:21:28,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 08:21:28,652 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 08:21:28,652 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 08:21:28,653 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 08:21:28,653 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 08:21:28,653 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 08:21:28,654 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 08:21:28,654 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 08:21:28,655 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 08:21:28,655 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 08:21:28,656 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 08:21:28,656 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 08:21:28,657 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 08:21:28,657 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 08:21:28,658 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 08:21:28,659 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 08:21:28,659 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 08:21:28,659 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 08:21:28,660 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 08:21:28,660 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 08:21:28,661 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 08:21:28,661 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 08:21:28,662 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 08:21:28,662 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 08:21:28,662 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 08:21:28,663 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 08:21:28,663 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 08:21:28,663 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 08:21:28,663 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 08:21:28,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:21:28,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 08:21:28,664 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 08:21:28,664 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 08:21:28,664 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 08:21:28,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 08:21:28,665 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 08:21:28,665 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 08:21:28,665 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 08:21:28,665 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 08:21:28,666 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_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b7acc1496132646be72bf3fc9cff3354439df5f9f6ff4e038477e55a66cbf0d [2023-12-02 08:21:28,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 08:21:28,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 08:21:28,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 08:21:28,900 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 08:21:28,900 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 08:21:28,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_11_bad.i [2023-12-02 08:21:31,699 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 08:21:31,985 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 08:21:31,986 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_11_bad.i [2023-12-02 08:21:32,007 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/data/80462b9ab/0f3317ce41a343a2a5e238dae142bc7a/FLAGe6050f2dd [2023-12-02 08:21:32,020 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/data/80462b9ab/0f3317ce41a343a2a5e238dae142bc7a [2023-12-02 08:21:32,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 08:21:32,023 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 08:21:32,024 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 08:21:32,024 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 08:21:32,029 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 08:21:32,029 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:21:32" (1/1) ... [2023-12-02 08:21:32,030 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b98136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:32, skipping insertion in model container [2023-12-02 08:21:32,030 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:21:32" (1/1) ... [2023-12-02 08:21:32,093 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 08:21:32,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:21:32,822 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 08:21:32,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:21:33,014 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:21:33,014 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:21:33,014 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:21:33,014 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:21:33,020 INFO L206 MainTranslator]: Completed translation [2023-12-02 08:21:33,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:33 WrapperNode [2023-12-02 08:21:33,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 08:21:33,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 08:21:33,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 08:21:33,022 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 08:21:33,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:33" (1/1) ... [2023-12-02 08:21:33,050 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:33" (1/1) ... [2023-12-02 08:21:33,075 INFO L138 Inliner]: procedures = 498, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2023-12-02 08:21:33,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 08:21:33,076 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 08:21:33,077 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 08:21:33,077 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 08:21:33,086 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:33" (1/1) ... [2023-12-02 08:21:33,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:33" (1/1) ... [2023-12-02 08:21:33,090 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:33" (1/1) ... [2023-12-02 08:21:33,090 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:33" (1/1) ... [2023-12-02 08:21:33,096 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:33" (1/1) ... [2023-12-02 08:21:33,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:33" (1/1) ... [2023-12-02 08:21:33,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:33" (1/1) ... [2023-12-02 08:21:33,101 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:33" (1/1) ... [2023-12-02 08:21:33,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 08:21:33,105 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 08:21:33,105 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 08:21:33,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 08:21:33,107 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:33" (1/1) ... [2023-12-02 08:21:33,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:21:33,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:21:33,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 08:21:33,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 08:21:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 08:21:33,168 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 08:21:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2023-12-02 08:21:33,168 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2023-12-02 08:21:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 08:21:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 08:21:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 08:21:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 08:21:33,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 08:21:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 08:21:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 08:21:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 08:21:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 08:21:33,294 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 08:21:33,296 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 08:21:33,396 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 08:21:33,439 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 08:21:33,439 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 08:21:33,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:21:33 BoogieIcfgContainer [2023-12-02 08:21:33,441 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 08:21:33,444 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 08:21:33,444 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 08:21:33,447 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 08:21:33,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:21:32" (1/3) ... [2023-12-02 08:21:33,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cccba89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:21:33, skipping insertion in model container [2023-12-02 08:21:33,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:33" (2/3) ... [2023-12-02 08:21:33,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cccba89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:21:33, skipping insertion in model container [2023-12-02 08:21:33,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:21:33" (3/3) ... [2023-12-02 08:21:33,450 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fscanf_postinc_11_bad.i [2023-12-02 08:21:33,469 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 08:21:33,469 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 08:21:33,514 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 08:21:33,521 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;@26cd27a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 08:21:33,521 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 08:21:33,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 08:21:33,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 08:21:33,532 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:21:33,533 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:21:33,533 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 08:21:33,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:21:33,539 INFO L85 PathProgramCache]: Analyzing trace with hash 41361675, now seen corresponding path program 1 times [2023-12-02 08:21:33,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:21:33,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963516682] [2023-12-02 08:21:33,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:21:33,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:21:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:21:34,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 08:21:34,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:21:34,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963516682] [2023-12-02 08:21:34,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963516682] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:21:34,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045178195] [2023-12-02 08:21:34,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:21:34,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:21:34,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:21:34,086 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:21:34,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 08:21:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:21:34,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 08:21:34,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:21:34,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 08:21:34,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-02 08:21:34,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 08:21:34,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:21:34,555 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 08:21:34,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2023-12-02 08:21:34,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 08:21:34,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045178195] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:21:34,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [268697838] [2023-12-02 08:21:34,627 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2023-12-02 08:21:34,627 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:21:34,629 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:21:34,633 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:21:34,634 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:21:35,546 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsTrue with input of size 132 for LOIs [2023-12-02 08:21:35,590 INFO L197 IcfgInterpreter]: Interpreting procedure printLine with input of size 52 for LOIs [2023-12-02 08:21:35,625 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:21:44,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [268697838] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:21:44,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:21:44,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5, 6, 5] total 21 [2023-12-02 08:21:44,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203400931] [2023-12-02 08:21:44,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:21:44,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 08:21:44,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:21:44,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 08:21:44,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=375, Unknown=2, NotChecked=0, Total=462 [2023-12-02 08:21:44,464 INFO L87 Difference]: Start difference. First operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 08:21:47,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 08:21:49,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 08:21:49,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:21:49,479 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2023-12-02 08:21:49,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 08:21:49,481 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 15 [2023-12-02 08:21:49,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:21:49,485 INFO L225 Difference]: With dead ends: 28 [2023-12-02 08:21:49,485 INFO L226 Difference]: Without dead ends: 15 [2023-12-02 08:21:49,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=85, Invalid=375, Unknown=2, NotChecked=0, Total=462 [2023-12-02 08:21:49,490 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-02 08:21:49,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 14 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2023-12-02 08:21:49,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-02 08:21:49,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-12-02 08:21:49,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 08:21:49,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-12-02 08:21:49,527 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 15 [2023-12-02 08:21:49,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:21:49,528 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-12-02 08:21:49,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 08:21:49,529 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-12-02 08:21:49,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 08:21:49,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:21:49,530 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:21:49,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 08:21:49,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 08:21:49,736 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 08:21:49,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:21:49,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1282211984, now seen corresponding path program 1 times [2023-12-02 08:21:49,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:21:49,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107710324] [2023-12-02 08:21:49,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:21:49,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:21:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 08:21:49,763 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 08:21:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 08:21:49,799 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 08:21:49,800 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 08:21:49,801 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 08:21:49,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 08:21:49,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 08:21:49,807 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-02 08:21:49,810 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 08:21:49,825 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet106 [2023-12-02 08:21:49,828 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret98 could not be translated [2023-12-02 08:21:49,829 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret101 could not be translated [2023-12-02 08:21:49,829 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post103 could not be translated [2023-12-02 08:21:49,829 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem102 could not be translated [2023-12-02 08:21:49,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:21:49 BoogieIcfgContainer [2023-12-02 08:21:49,840 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 08:21:49,840 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 08:21:49,840 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 08:21:49,841 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 08:21:49,841 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:21:33" (3/4) ... [2023-12-02 08:21:49,843 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 08:21:49,844 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 08:21:49,845 INFO L158 Benchmark]: Toolchain (without parser) took 17821.42ms. Allocated memory was 146.8MB in the beginning and 226.5MB in the end (delta: 79.7MB). Free memory was 98.6MB in the beginning and 95.3MB in the end (delta: 3.3MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. [2023-12-02 08:21:49,845 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 08:21:49,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 996.41ms. Allocated memory is still 146.8MB. Free memory was 98.4MB in the beginning and 84.8MB in the end (delta: 13.6MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. [2023-12-02 08:21:49,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.62ms. Allocated memory is still 146.8MB. Free memory was 84.8MB in the beginning and 81.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 08:21:49,846 INFO L158 Benchmark]: Boogie Preprocessor took 28.10ms. Allocated memory is still 146.8MB. Free memory was 81.3MB in the beginning and 80.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 08:21:49,847 INFO L158 Benchmark]: RCFGBuilder took 336.13ms. Allocated memory is still 146.8MB. Free memory was 80.0MB in the beginning and 64.6MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 08:21:49,847 INFO L158 Benchmark]: TraceAbstraction took 16395.78ms. Allocated memory was 146.8MB in the beginning and 226.5MB in the end (delta: 79.7MB). Free memory was 64.0MB in the beginning and 95.3MB in the end (delta: -31.3MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2023-12-02 08:21:49,848 INFO L158 Benchmark]: Witness Printer took 3.79ms. Allocated memory is still 226.5MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 08:21:49,850 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 98.6MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 996.41ms. Allocated memory is still 146.8MB. Free memory was 98.4MB in the beginning and 84.8MB in the end (delta: 13.6MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.62ms. Allocated memory is still 146.8MB. Free memory was 84.8MB in the beginning and 81.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.10ms. Allocated memory is still 146.8MB. Free memory was 81.3MB in the beginning and 80.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 336.13ms. Allocated memory is still 146.8MB. Free memory was 80.0MB in the beginning and 64.6MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 16395.78ms. Allocated memory was 146.8MB in the beginning and 226.5MB in the end (delta: 79.7MB). Free memory was 64.0MB in the beginning and 95.3MB in the end (delta: -31.3MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Witness Printer took 3.79ms. Allocated memory is still 226.5MB. Free memory is still 95.3MB. 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~nondet106 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret98 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem102 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: 1559]: 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 1568. 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); [L1568] 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) [L1568] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=2147483650, argc=2147483650, argv={2147483652:2147483651}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE190_Integer_Overflow__int_fscanf_postinc_11_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; [L1552] RET globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE globalReturnsTrue() [L1556] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; [L1556] RET globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE globalReturnsTrue() [L1559] EXPR \read(data) [L1559] data++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 16.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 4.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 114 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 5 mSDtfsCounter, 114 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 2 QuantifiedInterpolants, 157 SizeOfPredicates, 13 NumberOfNonLiveVariables, 121 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 3 InterpolantComputations, 0 PerfectInterpolantSequences, 3/6 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: OVERALL_TIME: 1.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 14, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 10, TOOLS_POST_TIME: 0.3s, TOOLS_POST_CALL_APPLICATIONS: 9, TOOLS_POST_CALL_TIME: 0.2s, TOOLS_POST_RETURN_APPLICATIONS: 6, TOOLS_POST_RETURN_TIME: 0.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 25, TOOLS_QUANTIFIERELIM_TIME: 0.7s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 40, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 7, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 14, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 6, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 130, DAG_COMPRESSION_RETAINED_NODES: 43, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 08:21:49,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/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_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/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_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/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_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/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 3b7acc1496132646be72bf3fc9cff3354439df5f9f6ff4e038477e55a66cbf0d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 08:21:51,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 08:21:51,780 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-12-02 08:21:51,786 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 08:21:51,787 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 08:21:51,812 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 08:21:51,813 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 08:21:51,813 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 08:21:51,814 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 08:21:51,815 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 08:21:51,815 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 08:21:51,816 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 08:21:51,816 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 08:21:51,817 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 08:21:51,817 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 08:21:51,818 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 08:21:51,819 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 08:21:51,819 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 08:21:51,820 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 08:21:51,820 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 08:21:51,820 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 08:21:51,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 08:21:51,821 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 08:21:51,822 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 08:21:51,822 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 08:21:51,823 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 08:21:51,823 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 08:21:51,824 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 08:21:51,824 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 08:21:51,825 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 08:21:51,825 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 08:21:51,825 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 08:21:51,826 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 08:21:51,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:21:51,827 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 08:21:51,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 08:21:51,827 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 08:21:51,827 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 08:21:51,828 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 08:21:51,828 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 08:21:51,828 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 08:21:51,828 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 08:21:51,829 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 08:21:51,829 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_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b7acc1496132646be72bf3fc9cff3354439df5f9f6ff4e038477e55a66cbf0d [2023-12-02 08:21:52,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 08:21:52,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 08:21:52,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 08:21:52,167 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 08:21:52,168 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 08:21:52,169 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_11_bad.i [2023-12-02 08:21:54,963 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 08:21:55,280 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 08:21:55,281 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_11_bad.i [2023-12-02 08:21:55,305 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/data/0dd77f21b/b2d4b435d64e4fcd8576039e4d387d19/FLAG3ba94394b [2023-12-02 08:21:55,320 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/data/0dd77f21b/b2d4b435d64e4fcd8576039e4d387d19 [2023-12-02 08:21:55,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 08:21:55,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 08:21:55,325 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 08:21:55,325 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 08:21:55,330 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 08:21:55,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:21:55" (1/1) ... [2023-12-02 08:21:55,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72720ad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:55, skipping insertion in model container [2023-12-02 08:21:55,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:21:55" (1/1) ... [2023-12-02 08:21:55,398 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 08:21:56,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:21:56,254 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 08:21:56,333 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:21:56,453 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:21:56,454 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:21:56,454 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:21:56,454 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:21:56,461 INFO L206 MainTranslator]: Completed translation [2023-12-02 08:21:56,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:56 WrapperNode [2023-12-02 08:21:56,461 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 08:21:56,462 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 08:21:56,462 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 08:21:56,462 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 08:21:56,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:56" (1/1) ... [2023-12-02 08:21:56,497 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:56" (1/1) ... [2023-12-02 08:21:56,522 INFO L138 Inliner]: procedures = 503, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2023-12-02 08:21:56,523 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 08:21:56,524 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 08:21:56,524 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 08:21:56,524 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 08:21:56,533 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:56" (1/1) ... [2023-12-02 08:21:56,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:56" (1/1) ... [2023-12-02 08:21:56,538 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:56" (1/1) ... [2023-12-02 08:21:56,539 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:56" (1/1) ... [2023-12-02 08:21:56,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:56" (1/1) ... [2023-12-02 08:21:56,551 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:56" (1/1) ... [2023-12-02 08:21:56,559 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:56" (1/1) ... [2023-12-02 08:21:56,561 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:56" (1/1) ... [2023-12-02 08:21:56,566 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 08:21:56,567 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 08:21:56,567 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 08:21:56,567 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 08:21:56,568 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:56" (1/1) ... [2023-12-02 08:21:56,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:21:56,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:21:56,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 08:21:56,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 08:21:56,630 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 08:21:56,630 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 08:21:56,630 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2023-12-02 08:21:56,630 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2023-12-02 08:21:56,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 08:21:56,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 08:21:56,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 08:21:56,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 08:21:56,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 08:21:56,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 08:21:56,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 08:21:56,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 08:21:56,631 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 08:21:56,776 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 08:21:56,779 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 08:21:56,911 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 08:21:56,942 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 08:21:56,942 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 08:21:56,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:21:56 BoogieIcfgContainer [2023-12-02 08:21:56,943 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 08:21:56,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 08:21:56,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 08:21:56,950 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 08:21:56,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:21:55" (1/3) ... [2023-12-02 08:21:56,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a62b499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:21:56, skipping insertion in model container [2023-12-02 08:21:56,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:56" (2/3) ... [2023-12-02 08:21:56,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a62b499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:21:56, skipping insertion in model container [2023-12-02 08:21:56,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:21:56" (3/3) ... [2023-12-02 08:21:56,953 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fscanf_postinc_11_bad.i [2023-12-02 08:21:56,971 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 08:21:56,971 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 08:21:57,018 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 08:21:57,024 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;@e48018d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 08:21:57,025 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 08:21:57,028 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 08:21:57,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 08:21:57,036 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:21:57,037 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:21:57,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 08:21:57,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:21:57,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1359976433, now seen corresponding path program 1 times [2023-12-02 08:21:57,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 08:21:57,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2123316999] [2023-12-02 08:21:57,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:21:57,056 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 08:21:57,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 08:21:57,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/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 08:21:57,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/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 08:21:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:21:57,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 08:21:57,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:21:57,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 08:21:57,226 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 08:21:57,226 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 08:21:57,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2123316999] [2023-12-02 08:21:57,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2123316999] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:21:57,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:21:57,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 08:21:57,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047165045] [2023-12-02 08:21:57,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:21:57,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 08:21:57,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 08:21:57,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 08:21:57,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 08:21:57,264 INFO L87 Difference]: Start difference. First operand has 21 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 08:21:57,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:21:57,299 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2023-12-02 08:21:57,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 08:21:57,301 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2023-12-02 08:21:57,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:21:57,308 INFO L225 Difference]: With dead ends: 21 [2023-12-02 08:21:57,308 INFO L226 Difference]: Without dead ends: 16 [2023-12-02 08:21:57,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 08:21:57,314 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 08:21:57,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 08:21:57,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-12-02 08:21:57,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-12-02 08:21:57,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 08:21:57,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2023-12-02 08:21:57,350 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 16 [2023-12-02 08:21:57,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:21:57,351 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2023-12-02 08:21:57,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 08:21:57,351 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-02 08:21:57,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 08:21:57,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:21:57,353 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:21:57,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/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 08:21:57,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/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 08:21:57,554 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 08:21:57,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:21:57,555 INFO L85 PathProgramCache]: Analyzing trace with hash 790403594, now seen corresponding path program 1 times [2023-12-02 08:21:57,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 08:21:57,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457874473] [2023-12-02 08:21:57,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:21:57,556 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 08:21:57,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 08:21:57,558 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/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 08:21:57,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/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 (3)] Waiting until timeout for monitored process [2023-12-02 08:21:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 08:21:57,657 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 08:21:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 08:21:57,720 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 08:21:57,721 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 08:21:57,723 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 08:21:57,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 08:21:57,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/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 (3)] Ended with exit code 0 [2023-12-02 08:21:57,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/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 08:21:57,928 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-02 08:21:57,931 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 08:21:57,949 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet104 [2023-12-02 08:21:57,953 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret96 could not be translated [2023-12-02 08:21:57,954 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret99 could not be translated [2023-12-02 08:21:57,954 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated [2023-12-02 08:21:57,954 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post101 could not be translated [2023-12-02 08:21:57,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:21:57 BoogieIcfgContainer [2023-12-02 08:21:57,963 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 08:21:57,963 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 08:21:57,963 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 08:21:57,964 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 08:21:57,964 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:21:56" (3/4) ... [2023-12-02 08:21:57,965 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 08:21:57,966 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 08:21:57,967 INFO L158 Benchmark]: Toolchain (without parser) took 2642.81ms. Allocated memory was 81.8MB in the beginning and 115.3MB in the end (delta: 33.6MB). Free memory was 55.2MB in the beginning and 72.2MB in the end (delta: -17.0MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2023-12-02 08:21:57,968 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 81.8MB. Free memory was 57.8MB in the beginning and 57.7MB in the end (delta: 155.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 08:21:57,968 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1136.49ms. Allocated memory was 81.8MB in the beginning and 115.3MB in the end (delta: 33.6MB). Free memory was 54.8MB in the beginning and 60.4MB in the end (delta: -5.6MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2023-12-02 08:21:57,969 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.93ms. Allocated memory is still 115.3MB. Free memory was 60.4MB in the beginning and 57.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 08:21:57,970 INFO L158 Benchmark]: Boogie Preprocessor took 42.42ms. Allocated memory is still 115.3MB. Free memory was 57.2MB in the beginning and 88.6MB in the end (delta: -31.4MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2023-12-02 08:21:57,970 INFO L158 Benchmark]: RCFGBuilder took 376.32ms. Allocated memory is still 115.3MB. Free memory was 87.9MB in the beginning and 71.8MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 08:21:57,971 INFO L158 Benchmark]: TraceAbstraction took 1017.30ms. Allocated memory is still 115.3MB. Free memory was 71.2MB in the beginning and 73.0MB in the end (delta: -1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 08:21:57,972 INFO L158 Benchmark]: Witness Printer took 2.80ms. Allocated memory is still 115.3MB. Free memory was 73.0MB in the beginning and 72.2MB in the end (delta: 778.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 08:21:57,975 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 81.8MB. Free memory was 57.8MB in the beginning and 57.7MB in the end (delta: 155.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1136.49ms. Allocated memory was 81.8MB in the beginning and 115.3MB in the end (delta: 33.6MB). Free memory was 54.8MB in the beginning and 60.4MB in the end (delta: -5.6MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.93ms. Allocated memory is still 115.3MB. Free memory was 60.4MB in the beginning and 57.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.42ms. Allocated memory is still 115.3MB. Free memory was 57.2MB in the beginning and 88.6MB in the end (delta: -31.4MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * RCFGBuilder took 376.32ms. Allocated memory is still 115.3MB. Free memory was 87.9MB in the beginning and 71.8MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1017.30ms. Allocated memory is still 115.3MB. Free memory was 71.2MB in the beginning and 73.0MB in the end (delta: -1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.80ms. Allocated memory is still 115.3MB. Free memory was 73.0MB in the beginning and 72.2MB in the end (delta: 778.1kB). 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~nondet104 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret96 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret99 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post101 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: 1559]: 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 1568. 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); [L1568] 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) [L1568] 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] [L1569] CALL CWE190_Integer_Overflow__int_fscanf_postinc_11_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; [L1552] RET globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE globalReturnsTrue() [L1556] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; [L1556] RET globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE globalReturnsTrue() [L1559] EXPR \read(data) [L1559] data++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 19 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 79 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 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 08:21:57,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8c0f21-2cf3-4b63-b2c4-9aff86c32fff/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample