./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_45_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 922d2e97744354ceb7196fe812246908bd535818a6f3f24824fe12c3bd9ccfdc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:52:01,650 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:52:01,801 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-24 23:52:01,813 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:52:01,814 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:52:01,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:52:01,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:52:01,871 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:52:01,872 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:52:01,878 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:52:01,879 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:52:01,880 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:52:01,881 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:52:01,883 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:52:01,884 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:52:01,884 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:52:01,885 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:52:01,886 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:52:01,886 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:52:01,887 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:52:01,888 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:52:01,889 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:52:01,890 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:52:01,891 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:52:01,891 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:52:01,892 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:52:01,893 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:52:01,893 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:52:01,894 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:52:01,894 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:52:01,896 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:52:01,896 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:52:01,897 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:52:01,897 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:52:01,898 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:52:01,898 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:52:01,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:52:01,899 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:52:01,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:52:01,900 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:52:01,900 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:52:01,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:52:01,901 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:52:01,902 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:52:01,902 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:52:01,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:52:01,903 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_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 922d2e97744354ceb7196fe812246908bd535818a6f3f24824fe12c3bd9ccfdc [2023-11-24 23:52:02,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:52:02,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:52:02,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:52:02,290 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:52:02,292 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:52:02,294 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_45_bad.i [2023-11-24 23:52:05,826 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:52:06,321 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:52:06,322 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_45_bad.i [2023-11-24 23:52:06,353 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/data/6a6b76fa9/eb1a8d3b95c04fd591f017f515b40625/FLAG056a61967 [2023-11-24 23:52:06,373 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/data/6a6b76fa9/eb1a8d3b95c04fd591f017f515b40625 [2023-11-24 23:52:06,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:52:06,378 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:52:06,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:52:06,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:52:06,388 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:52:06,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:52:06" (1/1) ... [2023-11-24 23:52:06,391 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b3cc7bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:06, skipping insertion in model container [2023-11-24 23:52:06,391 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:52:06" (1/1) ... [2023-11-24 23:52:06,493 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:52:07,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:52:07,781 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:52:07,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:52:08,040 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:52:08,040 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:52:08,041 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:52:08,041 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:52:08,057 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:52:08,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:08 WrapperNode [2023-11-24 23:52:08,058 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:52:08,060 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:52:08,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:52:08,062 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:52:08,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:08" (1/1) ... [2023-11-24 23:52:08,107 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:08" (1/1) ... [2023-11-24 23:52:08,140 INFO L138 Inliner]: procedures = 499, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2023-11-24 23:52:08,141 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:52:08,142 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:52:08,142 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:52:08,142 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:52:08,155 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:08" (1/1) ... [2023-11-24 23:52:08,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:08" (1/1) ... [2023-11-24 23:52:08,160 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:08" (1/1) ... [2023-11-24 23:52:08,160 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:08" (1/1) ... [2023-11-24 23:52:08,168 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:08" (1/1) ... [2023-11-24 23:52:08,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:08" (1/1) ... [2023-11-24 23:52:08,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:08" (1/1) ... [2023-11-24 23:52:08,175 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:08" (1/1) ... [2023-11-24 23:52:08,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:52:08,180 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:52:08,180 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:52:08,180 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:52:08,181 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:08" (1/1) ... [2023-11-24 23:52:08,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:52:08,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:52:08,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:52:08,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:52:08,290 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:52:08,291 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:52:08,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:52:08,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:52:08,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:52:08,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:52:08,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:52:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:52:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:52:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:52:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:52:08,472 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:52:08,476 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:52:08,683 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:52:08,762 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:52:08,763 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:52:08,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:52:08 BoogieIcfgContainer [2023-11-24 23:52:08,771 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:52:08,775 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:52:08,775 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:52:08,779 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:52:08,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:52:06" (1/3) ... [2023-11-24 23:52:08,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32e6177c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:52:08, skipping insertion in model container [2023-11-24 23:52:08,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:08" (2/3) ... [2023-11-24 23:52:08,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32e6177c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:52:08, skipping insertion in model container [2023-11-24 23:52:08,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:52:08" (3/3) ... [2023-11-24 23:52:08,782 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_predec_45_bad.i [2023-11-24 23:52:08,801 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:52:08,801 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-24 23:52:08,849 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:52:08,856 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;@a3b1df8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:52:08,856 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-24 23:52:08,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-24 23:52:08,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:52:08,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:08,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 23:52:08,872 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-24 23:52:08,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:08,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1830714995, now seen corresponding path program 1 times [2023-11-24 23:52:08,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:08,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642891714] [2023-11-24 23:52:08,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:08,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:52:09,048 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:52:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:52:09,110 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:52:09,111 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:52:09,112 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-24 23:52:09,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-24 23:52:09,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:52:09,120 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:52:09,125 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:52:09,140 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet103 [2023-11-24 23:52:09,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:52:09 BoogieIcfgContainer [2023-11-24 23:52:09,150 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:52:09,151 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:52:09,151 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:52:09,151 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:52:09,152 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:52:08" (3/4) ... [2023-11-24 23:52:09,155 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:52:09,156 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:52:09,157 INFO L158 Benchmark]: Toolchain (without parser) took 2778.67ms. Allocated memory was 138.4MB in the beginning and 182.5MB in the end (delta: 44.0MB). Free memory was 75.9MB in the beginning and 126.1MB in the end (delta: -50.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:52:09,158 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 138.4MB. Free memory was 76.6MB in the beginning and 76.5MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:52:09,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1678.42ms. Allocated memory was 138.4MB in the beginning and 182.5MB in the end (delta: 44.0MB). Free memory was 75.6MB in the beginning and 103.4MB in the end (delta: -27.9MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2023-11-24 23:52:09,159 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.82ms. Allocated memory is still 182.5MB. Free memory was 103.4MB in the beginning and 101.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:52:09,160 INFO L158 Benchmark]: Boogie Preprocessor took 37.28ms. Allocated memory is still 182.5MB. Free memory was 101.3MB in the beginning and 99.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:52:09,161 INFO L158 Benchmark]: RCFGBuilder took 591.84ms. Allocated memory is still 182.5MB. Free memory was 99.2MB in the beginning and 144.0MB in the end (delta: -44.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 23:52:09,162 INFO L158 Benchmark]: TraceAbstraction took 375.58ms. Allocated memory is still 182.5MB. Free memory was 142.9MB in the beginning and 126.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 23:52:09,162 INFO L158 Benchmark]: Witness Printer took 5.07ms. Allocated memory is still 182.5MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:52:09,166 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 138.4MB. Free memory was 76.6MB in the beginning and 76.5MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1678.42ms. Allocated memory was 138.4MB in the beginning and 182.5MB in the end (delta: 44.0MB). Free memory was 75.6MB in the beginning and 103.4MB in the end (delta: -27.9MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.82ms. Allocated memory is still 182.5MB. Free memory was 103.4MB in the beginning and 101.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.28ms. Allocated memory is still 182.5MB. Free memory was 101.3MB in the beginning and 99.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 591.84ms. Allocated memory is still 182.5MB. Free memory was 99.2MB in the beginning and 144.0MB in the end (delta: -44.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 375.58ms. Allocated memory is still 182.5MB. Free memory was 142.9MB in the beginning and 126.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.07ms. Allocated memory is still 182.5MB. Free memory is still 126.1MB. 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~nondet103 - 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: 1555]: 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 1571. 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); [L1548] static int CWE191_Integer_Underflow__int_fscanf_predec_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fscanf_predec_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fscanf_predec_45_goodB2GData; [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fscanf_predec_45_badData=0, CWE191_Integer_Underflow__int_fscanf_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fscanf_predec_45_goodG2BData=0, 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) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fscanf_predec_45_badData=0, CWE191_Integer_Underflow__int_fscanf_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fscanf_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741829, argc=1073741829, argv={1073741831:1073741830}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fscanf_predec_45_bad() [L1562] int data; [L1563] data = 0 [L1565] EXPR \read(data) [L1565] CWE191_Integer_Underflow__int_fscanf_predec_45_badData = data [L1566] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fscanf_predec_45_badData; VAL [CWE191_Integer_Underflow__int_fscanf_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fscanf_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fscanf_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] --data VAL [CWE191_Integer_Underflow__int_fscanf_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fscanf_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fscanf_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:52:09,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 922d2e97744354ceb7196fe812246908bd535818a6f3f24824fe12c3bd9ccfdc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:52:12,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:52:12,409 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-24 23:52:12,420 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:52:12,421 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:52:12,475 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:52:12,476 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:52:12,477 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:52:12,478 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:52:12,484 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:52:12,485 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:52:12,485 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:52:12,486 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:52:12,488 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:52:12,489 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:52:12,489 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:52:12,491 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:52:12,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:52:12,492 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:52:12,494 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:52:12,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:52:12,495 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:52:12,496 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:52:12,496 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:52:12,497 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:52:12,498 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:52:12,498 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:52:12,499 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:52:12,499 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:52:12,500 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:52:12,502 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:52:12,502 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:52:12,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:52:12,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:52:12,504 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:52:12,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:52:12,505 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:52:12,505 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:52:12,505 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:52:12,506 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:52:12,506 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:52:12,507 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:52:12,507 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:52:12,508 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_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 922d2e97744354ceb7196fe812246908bd535818a6f3f24824fe12c3bd9ccfdc [2023-11-24 23:52:13,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:52:13,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:52:13,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:52:13,054 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:52:13,055 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:52:13,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_45_bad.i [2023-11-24 23:52:16,598 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:52:17,128 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:52:17,129 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_45_bad.i [2023-11-24 23:52:17,191 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/data/4bc1bef46/a00faa4ed17b4e33ba36d364aeac86ae/FLAG0031ffb98 [2023-11-24 23:52:17,214 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/data/4bc1bef46/a00faa4ed17b4e33ba36d364aeac86ae [2023-11-24 23:52:17,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:52:17,219 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:52:17,220 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:52:17,221 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:52:17,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:52:17,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:52:17" (1/1) ... [2023-11-24 23:52:17,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22e8f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:17, skipping insertion in model container [2023-11-24 23:52:17,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:52:17" (1/1) ... [2023-11-24 23:52:17,364 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:52:19,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:52:19,065 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:52:19,162 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:52:19,325 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:52:19,325 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:52:19,325 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:52:19,326 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:52:19,335 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:52:19,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:19 WrapperNode [2023-11-24 23:52:19,336 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:52:19,337 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:52:19,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:52:19,338 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:52:19,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:19" (1/1) ... [2023-11-24 23:52:19,385 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:19" (1/1) ... [2023-11-24 23:52:19,414 INFO L138 Inliner]: procedures = 504, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 55 [2023-11-24 23:52:19,415 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:52:19,416 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:52:19,416 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:52:19,416 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:52:19,427 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:19" (1/1) ... [2023-11-24 23:52:19,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:19" (1/1) ... [2023-11-24 23:52:19,433 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:19" (1/1) ... [2023-11-24 23:52:19,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:19" (1/1) ... [2023-11-24 23:52:19,445 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:19" (1/1) ... [2023-11-24 23:52:19,447 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:19" (1/1) ... [2023-11-24 23:52:19,451 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:19" (1/1) ... [2023-11-24 23:52:19,453 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:19" (1/1) ... [2023-11-24 23:52:19,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:52:19,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:52:19,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:52:19,461 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:52:19,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:19" (1/1) ... [2023-11-24 23:52:19,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:52:19,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:52:19,527 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:52:19,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:52:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:52:19,592 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:52:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:52:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:52:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:52:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:52:19,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:52:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 23:52:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:52:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 23:52:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:52:19,813 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:52:19,816 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:52:19,988 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:52:20,034 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:52:20,034 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:52:20,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:52:20 BoogieIcfgContainer [2023-11-24 23:52:20,035 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:52:20,037 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:52:20,037 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:52:20,040 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:52:20,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:52:17" (1/3) ... [2023-11-24 23:52:20,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50bb24c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:52:20, skipping insertion in model container [2023-11-24 23:52:20,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:19" (2/3) ... [2023-11-24 23:52:20,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50bb24c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:52:20, skipping insertion in model container [2023-11-24 23:52:20,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:52:20" (3/3) ... [2023-11-24 23:52:20,043 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_predec_45_bad.i [2023-11-24 23:52:20,062 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:52:20,062 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-24 23:52:20,109 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:52:20,116 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;@e6d1aa4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:52:20,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-24 23:52:20,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-24 23:52:20,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:52:20,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:20,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:52:20,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-24 23:52:20,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:20,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1506175351, now seen corresponding path program 1 times [2023-11-24 23:52:20,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:52:20,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323224651] [2023-11-24 23:52:20,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:20,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:52:20,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:52:20,152 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:52:20,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-24 23:52:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:52:20,378 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:52:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:52:20,456 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-24 23:52:20,458 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:52:20,459 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-24 23:52:20,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-24 23:52:20,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:52:20,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:52:20,665 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:52:20,669 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:52:20,684 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet101 [2023-11-24 23:52:20,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:52:20 BoogieIcfgContainer [2023-11-24 23:52:20,694 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:52:20,695 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:52:20,695 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:52:20,695 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:52:20,696 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:52:20" (3/4) ... [2023-11-24 23:52:20,698 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:52:20,699 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:52:20,700 INFO L158 Benchmark]: Toolchain (without parser) took 3481.29ms. Allocated memory is still 104.9MB. Free memory was 77.9MB in the beginning and 67.6MB in the end (delta: 10.3MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2023-11-24 23:52:20,700 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 67.1MB. Free memory was 42.9MB in the beginning and 42.8MB in the end (delta: 53.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:52:20,701 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2115.91ms. Allocated memory is still 104.9MB. Free memory was 77.7MB in the beginning and 73.3MB in the end (delta: 4.4MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2023-11-24 23:52:20,702 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.93ms. Allocated memory is still 104.9MB. Free memory was 73.3MB in the beginning and 70.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:52:20,702 INFO L158 Benchmark]: Boogie Preprocessor took 43.62ms. Allocated memory is still 104.9MB. Free memory was 70.5MB in the beginning and 68.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:52:20,703 INFO L158 Benchmark]: RCFGBuilder took 574.65ms. Allocated memory is still 104.9MB. Free memory was 68.1MB in the beginning and 52.3MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 23:52:20,704 INFO L158 Benchmark]: TraceAbstraction took 657.16ms. Allocated memory is still 104.9MB. Free memory was 51.8MB in the beginning and 67.6MB in the end (delta: -15.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:52:20,704 INFO L158 Benchmark]: Witness Printer took 4.28ms. Allocated memory is still 104.9MB. Free memory is still 67.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:52:20,707 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 67.1MB. Free memory was 42.9MB in the beginning and 42.8MB in the end (delta: 53.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2115.91ms. Allocated memory is still 104.9MB. Free memory was 77.7MB in the beginning and 73.3MB in the end (delta: 4.4MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.93ms. Allocated memory is still 104.9MB. Free memory was 73.3MB in the beginning and 70.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.62ms. Allocated memory is still 104.9MB. Free memory was 70.5MB in the beginning and 68.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 574.65ms. Allocated memory is still 104.9MB. Free memory was 68.1MB in the beginning and 52.3MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 657.16ms. Allocated memory is still 104.9MB. Free memory was 51.8MB in the beginning and 67.6MB in the end (delta: -15.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.28ms. Allocated memory is still 104.9MB. Free memory is still 67.6MB. 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~nondet101 - 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: 1555]: 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 1571. 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); [L1548] static int CWE191_Integer_Underflow__int_fscanf_predec_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fscanf_predec_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fscanf_predec_45_goodB2GData; [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fscanf_predec_45_badData=0, CWE191_Integer_Underflow__int_fscanf_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fscanf_predec_45_goodG2BData=0, 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) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fscanf_predec_45_badData=0, CWE191_Integer_Underflow__int_fscanf_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fscanf_predec_45_goodG2BData=0, 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] [L1572] CALL CWE191_Integer_Underflow__int_fscanf_predec_45_bad() [L1562] int data; [L1563] data = 0 [L1565] EXPR \read(data) [L1565] CWE191_Integer_Underflow__int_fscanf_predec_45_badData = data [L1566] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fscanf_predec_45_badData; VAL [CWE191_Integer_Underflow__int_fscanf_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fscanf_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fscanf_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] --data VAL [CWE191_Integer_Underflow__int_fscanf_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fscanf_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fscanf_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:52:20,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d588c2-0064-4802-afa3-5d07c2f2744d/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample