./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_42_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_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 88575518a2e68294d424ec3ce80a1f2534c398b324c7b41c48d87c5b1025c3fd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:22:56,257 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:22:56,315 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 04:22:56,320 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:22:56,321 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:22:56,342 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:22:56,343 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:22:56,343 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:22:56,344 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:22:56,344 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:22:56,345 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:22:56,345 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:22:56,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:22:56,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:22:56,347 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:22:56,348 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:22:56,349 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:22:56,349 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:22:56,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:22:56,350 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:22:56,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:22:56,351 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:22:56,352 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 04:22:56,352 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:22:56,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:22:56,353 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:22:56,354 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:22:56,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:22:56,354 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:22:56,355 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:22:56,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:22:56,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:22:56,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:22:56,356 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:22:56,356 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:22:56,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:22:56,357 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:22:56,357 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:22:56,357 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:22:56,357 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:22:56,357 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:22:56,358 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88575518a2e68294d424ec3ce80a1f2534c398b324c7b41c48d87c5b1025c3fd [2023-11-29 04:22:56,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:22:56,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:22:56,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:22:56,586 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:22:56,587 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:22:56,588 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_42_bad.i [2023-11-29 04:22:59,274 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:22:59,572 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:22:59,572 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_42_bad.i [2023-11-29 04:22:59,596 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/data/68f125d8c/0299dc8ad90b4000906217d106ec2f16/FLAG1655f3259 [2023-11-29 04:22:59,610 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/data/68f125d8c/0299dc8ad90b4000906217d106ec2f16 [2023-11-29 04:22:59,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:22:59,614 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:22:59,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:22:59,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:22:59,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:22:59,621 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:22:59" (1/1) ... [2023-11-29 04:22:59,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c77923a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:22:59, skipping insertion in model container [2023-11-29 04:22:59,622 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:22:59" (1/1) ... [2023-11-29 04:22:59,690 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:23:00,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:23:00,389 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:23:00,470 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:23:00,566 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:23:00,566 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:23:00,566 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:23:00,566 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:23:00,572 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:23:00,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:00 WrapperNode [2023-11-29 04:23:00,573 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:23:00,574 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:23:00,574 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:23:00,574 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:23:00,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:00" (1/1) ... [2023-11-29 04:23:00,604 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:00" (1/1) ... [2023-11-29 04:23:00,628 INFO L138 Inliner]: procedures = 499, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2023-11-29 04:23:00,629 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:23:00,629 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:23:00,630 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:23:00,630 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:23:00,639 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:00" (1/1) ... [2023-11-29 04:23:00,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:00" (1/1) ... [2023-11-29 04:23:00,643 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:00" (1/1) ... [2023-11-29 04:23:00,659 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [1, 3]. 75 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 2 writes are split as follows [0, 2]. [2023-11-29 04:23:00,659 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:00" (1/1) ... [2023-11-29 04:23:00,660 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:00" (1/1) ... [2023-11-29 04:23:00,666 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:00" (1/1) ... [2023-11-29 04:23:00,668 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:00" (1/1) ... [2023-11-29 04:23:00,669 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:00" (1/1) ... [2023-11-29 04:23:00,671 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:00" (1/1) ... [2023-11-29 04:23:00,673 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:23:00,674 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:23:00,674 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:23:00,674 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:23:00,675 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:00" (1/1) ... [2023-11-29 04:23:00,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:23:00,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:00,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:23:00,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:23:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 04:23:00,731 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 04:23:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 04:23:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 04:23:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 04:23:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:23:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:23:00,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:23:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 04:23:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 04:23:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 04:23:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 04:23:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:23:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 04:23:00,879 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:23:00,881 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:23:00,985 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:23:01,046 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:23:01,046 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 04:23:01,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:23:01 BoogieIcfgContainer [2023-11-29 04:23:01,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:23:01,049 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:23:01,049 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:23:01,051 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:23:01,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:22:59" (1/3) ... [2023-11-29 04:23:01,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d8d530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:23:01, skipping insertion in model container [2023-11-29 04:23:01,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:00" (2/3) ... [2023-11-29 04:23:01,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d8d530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:23:01, skipping insertion in model container [2023-11-29 04:23:01,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:23:01" (3/3) ... [2023-11-29 04:23:01,054 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_42_bad.i [2023-11-29 04:23:01,069 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:23:01,069 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 04:23:01,106 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:23:01,112 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=PETRI_NET, 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;@13a95f49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:23:01,112 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 04:23:01,115 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) [2023-11-29 04:23:01,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 04:23:01,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:01,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:23:01,122 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:23:01,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:01,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1506176128, now seen corresponding path program 1 times [2023-11-29 04:23:01,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:01,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17782320] [2023-11-29 04:23:01,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:01,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:23:01,258 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:23:01,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:23:01,313 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:23:01,314 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 04:23:01,315 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 04:23:01,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 04:23:01,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:23:01,321 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 04:23:01,325 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:23:01,337 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet103 [2023-11-29 04:23:01,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:23:01 BoogieIcfgContainer [2023-11-29 04:23:01,345 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:23:01,345 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:23:01,345 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:23:01,346 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:23:01,346 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:23:01" (3/4) ... [2023-11-29 04:23:01,348 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 04:23:01,349 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:23:01,350 INFO L158 Benchmark]: Toolchain (without parser) took 1736.07ms. Allocated memory is still 184.5MB. Free memory was 143.2MB in the beginning and 134.8MB in the end (delta: 8.4MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2023-11-29 04:23:01,350 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory was 66.7MB in the beginning and 66.7MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:23:01,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 958.06ms. Allocated memory is still 184.5MB. Free memory was 143.2MB in the beginning and 80.3MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-29 04:23:01,351 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.30ms. Allocated memory is still 184.5MB. Free memory was 80.3MB in the beginning and 77.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:23:01,352 INFO L158 Benchmark]: Boogie Preprocessor took 43.88ms. Allocated memory is still 184.5MB. Free memory was 77.5MB in the beginning and 75.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:23:01,353 INFO L158 Benchmark]: RCFGBuilder took 372.66ms. Allocated memory is still 184.5MB. Free memory was 75.4MB in the beginning and 153.2MB in the end (delta: -77.8MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2023-11-29 04:23:01,353 INFO L158 Benchmark]: TraceAbstraction took 295.99ms. Allocated memory is still 184.5MB. Free memory was 152.6MB in the beginning and 134.8MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 04:23:01,354 INFO L158 Benchmark]: Witness Printer took 3.58ms. Allocated memory is still 184.5MB. Free memory is still 134.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:23:01,357 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory was 66.7MB in the beginning and 66.7MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 958.06ms. Allocated memory is still 184.5MB. Free memory was 143.2MB in the beginning and 80.3MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.30ms. Allocated memory is still 184.5MB. Free memory was 80.3MB in the beginning and 77.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.88ms. Allocated memory is still 184.5MB. Free memory was 77.5MB in the beginning and 75.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 372.66ms. Allocated memory is still 184.5MB. Free memory was 75.4MB in the beginning and 153.2MB in the end (delta: -77.8MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * TraceAbstraction took 295.99ms. Allocated memory is still 184.5MB. Free memory was 152.6MB in the beginning and 134.8MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 3.58ms. Allocated memory is still 184.5MB. Free memory is still 134.8MB. 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: 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 1566. 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); [L1566] 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) [L1566] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741826, argc=1073741826, argv={1073741828:1073741827}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] CALL CWE191_Integer_Underflow__int_fscanf_sub_42_bad() [L1555] int data; [L1556] data = 0 [L1557] CALL, EXPR badSource(data) [L1551] EXPR \read(data) [L1551] return data; [L1551] return data; [L1557] RET, EXPR badSource(data) [L1557] data = badSource(data) [L1559] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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, 0.0s 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 [2023-11-29 04:23:01,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 88575518a2e68294d424ec3ce80a1f2534c398b324c7b41c48d87c5b1025c3fd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:23:03,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:23:03,346 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-29 04:23:03,361 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:23:03,362 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:23:03,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-29 04:23:03,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:23:03,391 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:23:03,391 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:23:03,392 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:23:03,393 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:23:03,394 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:23:03,394 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:23:03,395 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:23:03,396 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:23:03,396 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:23:03,397 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:23:03,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:23:03,398 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:23:03,398 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:23:03,399 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:23:03,399 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:23:03,400 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 04:23:03,400 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 04:23:03,401 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 04:23:03,401 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 04:23:03,401 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:23:03,402 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:23:03,402 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:23:03,402 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:23:03,403 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:23:03,403 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:23:03,403 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:23:03,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:23:03,404 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:23:03,404 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:23:03,404 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:23:03,405 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 04:23:03,405 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 04:23:03,405 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:23:03,405 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:23:03,406 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:23:03,406 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:23:03,406 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:23:03,406 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 04:23:03,406 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88575518a2e68294d424ec3ce80a1f2534c398b324c7b41c48d87c5b1025c3fd [2023-11-29 04:23:03,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:23:03,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:23:03,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:23:03,727 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:23:03,727 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:23:03,728 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_42_bad.i [2023-11-29 04:23:06,489 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:23:06,825 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:23:06,825 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_42_bad.i [2023-11-29 04:23:06,849 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/data/db67f06f5/708aca5cda6549f8ac7aeab0e267ec88/FLAG35f426ce1 [2023-11-29 04:23:06,864 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/data/db67f06f5/708aca5cda6549f8ac7aeab0e267ec88 [2023-11-29 04:23:06,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:23:06,868 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:23:06,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:23:06,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:23:06,874 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:23:06,875 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:23:06" (1/1) ... [2023-11-29 04:23:06,876 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb3758a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:06, skipping insertion in model container [2023-11-29 04:23:06,877 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:23:06" (1/1) ... [2023-11-29 04:23:06,935 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:23:07,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:23:07,716 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:23:07,796 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:23:07,937 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:23:07,938 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:23:07,938 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:23:07,938 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:23:07,946 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:23:07,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:07 WrapperNode [2023-11-29 04:23:07,946 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:23:07,948 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:23:07,948 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:23:07,948 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:23:07,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:07" (1/1) ... [2023-11-29 04:23:07,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:07" (1/1) ... [2023-11-29 04:23:08,008 INFO L138 Inliner]: procedures = 504, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 55 [2023-11-29 04:23:08,009 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:23:08,009 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:23:08,009 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:23:08,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:23:08,019 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:07" (1/1) ... [2023-11-29 04:23:08,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:07" (1/1) ... [2023-11-29 04:23:08,024 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:07" (1/1) ... [2023-11-29 04:23:08,040 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [1, 3]. 75 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 2 writes are split as follows [0, 2]. [2023-11-29 04:23:08,040 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:07" (1/1) ... [2023-11-29 04:23:08,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:07" (1/1) ... [2023-11-29 04:23:08,050 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:07" (1/1) ... [2023-11-29 04:23:08,052 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:07" (1/1) ... [2023-11-29 04:23:08,056 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:07" (1/1) ... [2023-11-29 04:23:08,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:07" (1/1) ... [2023-11-29 04:23:08,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:23:08,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:23:08,064 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:23:08,064 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:23:08,065 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:07" (1/1) ... [2023-11-29 04:23:08,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:23:08,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:08,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:23:08,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:23:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 04:23:08,136 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 04:23:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 04:23:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 04:23:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 04:23:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:23:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:23:08,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:23:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 04:23:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 04:23:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 04:23:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 04:23:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 04:23:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 04:23:08,317 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:23:08,319 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:23:08,468 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:23:08,507 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:23:08,508 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 04:23:08,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:23:08 BoogieIcfgContainer [2023-11-29 04:23:08,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:23:08,511 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:23:08,511 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:23:08,514 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:23:08,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:23:06" (1/3) ... [2023-11-29 04:23:08,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648e350e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:23:08, skipping insertion in model container [2023-11-29 04:23:08,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:07" (2/3) ... [2023-11-29 04:23:08,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648e350e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:23:08, skipping insertion in model container [2023-11-29 04:23:08,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:23:08" (3/3) ... [2023-11-29 04:23:08,517 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_42_bad.i [2023-11-29 04:23:08,538 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:23:08,538 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 04:23:08,587 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:23:08,594 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=PETRI_NET, 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;@441e65dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:23:08,594 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 04:23:08,599 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) [2023-11-29 04:23:08,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 04:23:08,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:08,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:23:08,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:23:08,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:08,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1506176128, now seen corresponding path program 1 times [2023-11-29 04:23:08,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:23:08,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1312848025] [2023-11-29 04:23:08,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:08,630 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 [2023-11-29 04:23:08,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:23:08,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 04:23:08,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 04:23:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:23:08,813 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:23:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:23:08,885 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-29 04:23:08,887 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 04:23:08,888 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 04:23:08,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 04:23:08,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 04:23:09,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 04:23:09,096 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 04:23:09,110 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:23:09,125 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet101 [2023-11-29 04:23:09,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:23:09 BoogieIcfgContainer [2023-11-29 04:23:09,134 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:23:09,135 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:23:09,135 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:23:09,135 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:23:09,136 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:23:08" (3/4) ... [2023-11-29 04:23:09,138 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 04:23:09,139 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:23:09,141 INFO L158 Benchmark]: Toolchain (without parser) took 2272.63ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 67.5MB in the beginning and 84.2MB in the end (delta: -16.7MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2023-11-29 04:23:09,141 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 65.0MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:23:09,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1077.60ms. Allocated memory is still 94.4MB. Free memory was 67.5MB in the beginning and 49.7MB in the end (delta: 17.8MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2023-11-29 04:23:09,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.28ms. Allocated memory is still 94.4MB. Free memory was 49.2MB in the beginning and 46.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:23:09,143 INFO L158 Benchmark]: Boogie Preprocessor took 53.37ms. Allocated memory is still 94.4MB. Free memory was 46.1MB in the beginning and 43.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 04:23:09,144 INFO L158 Benchmark]: RCFGBuilder took 444.84ms. Allocated memory is still 94.4MB. Free memory was 43.4MB in the beginning and 55.6MB in the end (delta: -12.2MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2023-11-29 04:23:09,145 INFO L158 Benchmark]: TraceAbstraction took 623.26ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 55.0MB in the beginning and 84.8MB in the end (delta: -29.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 04:23:09,145 INFO L158 Benchmark]: Witness Printer took 4.76ms. Allocated memory is still 113.2MB. Free memory was 84.8MB in the beginning and 84.2MB in the end (delta: 621.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:23:09,148 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 65.0MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1077.60ms. Allocated memory is still 94.4MB. Free memory was 67.5MB in the beginning and 49.7MB in the end (delta: 17.8MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.28ms. Allocated memory is still 94.4MB. Free memory was 49.2MB in the beginning and 46.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.37ms. Allocated memory is still 94.4MB. Free memory was 46.1MB in the beginning and 43.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 444.84ms. Allocated memory is still 94.4MB. Free memory was 43.4MB in the beginning and 55.6MB in the end (delta: -12.2MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * TraceAbstraction took 623.26ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 55.0MB in the beginning and 84.8MB in the end (delta: -29.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.76ms. Allocated memory is still 113.2MB. Free memory was 84.8MB in the beginning and 84.2MB in the end (delta: 621.2kB). 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: 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 1566. 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); [L1566] 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) [L1566] 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] [L1567] CALL CWE191_Integer_Underflow__int_fscanf_sub_42_bad() [L1555] int data; [L1556] data = 0 [L1557] CALL, EXPR badSource(data) [L1551] EXPR \read(data) [L1551] return data; [L1551] return data; [L1557] RET, EXPR badSource(data) [L1557] data = badSource(data) [L1559] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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, 0.0s 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 [2023-11-29 04:23:09,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb0c70-e8bd-481f-bfe3-8f5eccddba8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample