./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b 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_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 b5b0306ceebc7138ed940cef6b6848d6eb995b72db2fae2138badb859ab7a0a1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:06:04,972 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:06:05,124 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-06 23:06:05,136 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:06:05,138 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:06:05,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:06:05,189 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:06:05,190 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:06:05,192 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:06:05,198 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:06:05,199 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:06:05,200 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:06:05,200 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:06:05,203 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:06:05,203 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:06:05,204 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:06:05,204 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:06:05,205 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:06:05,205 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:06:05,206 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:06:05,207 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 23:06:05,207 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:06:05,210 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:06:05,210 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:06:05,211 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:06:05,212 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:06:05,213 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:06:05,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:06:05,214 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:06:05,214 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:06:05,216 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:06:05,217 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:06:05,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:06:05,217 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:06:05,218 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:06:05,218 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:06:05,218 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:06:05,219 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:06:05,219 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_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5b0306ceebc7138ed940cef6b6848d6eb995b72db2fae2138badb859ab7a0a1 [2023-11-06 23:06:05,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:06:05,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:06:05,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:06:05,685 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:06:05,687 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:06:05,688 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i [2023-11-06 23:06:09,531 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:06:10,060 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:06:10,061 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i [2023-11-06 23:06:10,103 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/data/3ea32e8fd/0813f1a2e9f247c3ab7b46b59041e37d/FLAG18a0454cb [2023-11-06 23:06:10,126 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/data/3ea32e8fd/0813f1a2e9f247c3ab7b46b59041e37d [2023-11-06 23:06:10,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:06:10,133 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:06:10,138 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:06:10,138 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:06:10,150 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:06:10,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:06:10" (1/1) ... [2023-11-06 23:06:10,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f45d576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:10, skipping insertion in model container [2023-11-06 23:06:10,154 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:06:10" (1/1) ... [2023-11-06 23:06:10,234 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:06:10,768 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 23:06:11,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:06:11,524 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:06:11,567 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 23:06:11,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:06:11,959 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:06:11,960 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:06:11,960 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:06:11,960 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:06:11,961 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:06:11,962 WARN L672 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:06:11,975 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:06:11,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:11 WrapperNode [2023-11-06 23:06:11,976 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:06:11,977 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:06:11,978 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:06:11,978 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:06:11,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:11" (1/1) ... [2023-11-06 23:06:12,026 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:11" (1/1) ... [2023-11-06 23:06:12,058 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2023-11-06 23:06:12,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:06:12,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:06:12,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:06:12,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:06:12,070 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:11" (1/1) ... [2023-11-06 23:06:12,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:11" (1/1) ... [2023-11-06 23:06:12,074 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:11" (1/1) ... [2023-11-06 23:06:12,075 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:11" (1/1) ... [2023-11-06 23:06:12,083 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:11" (1/1) ... [2023-11-06 23:06:12,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:11" (1/1) ... [2023-11-06 23:06:12,088 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:11" (1/1) ... [2023-11-06 23:06:12,090 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:11" (1/1) ... [2023-11-06 23:06:12,095 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:06:12,096 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:06:12,096 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:06:12,096 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:06:12,098 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:11" (1/1) ... [2023-11-06 23:06:12,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:06:12,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:06:12,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:06:12,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:06:12,250 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-06 23:06:12,250 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-06 23:06:12,251 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-06 23:06:12,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:06:12,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-06 23:06:12,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:06:12,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:06:12,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:06:12,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:06:12,255 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-06 23:06:12,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:06:12,527 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:06:12,531 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:06:12,683 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:06:12,690 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:06:12,690 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 23:06:12,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:06:12 BoogieIcfgContainer [2023-11-06 23:06:12,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:06:12,696 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:06:12,696 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:06:12,700 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:06:12,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:06:10" (1/3) ... [2023-11-06 23:06:12,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8274f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:06:12, skipping insertion in model container [2023-11-06 23:06:12,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:11" (2/3) ... [2023-11-06 23:06:12,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8274f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:06:12, skipping insertion in model container [2023-11-06 23:06:12,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:06:12" (3/3) ... [2023-11-06 23:06:12,704 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i [2023-11-06 23:06:12,728 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:06:12,728 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-06 23:06:12,892 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:06:12,901 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=LoopsAndPotentialCycles, 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;@1beabb0a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:06:12,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-06 23:06:12,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 23:06:12,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 23:06:12,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:06:12,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:06:12,919 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-06 23:06:12,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:06:12,925 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2023-11-06 23:06:12,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:06:12,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609929533] [2023-11-06 23:06:12,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:06:12,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:06:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:06:13,113 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:06:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:06:13,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:06:13,190 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 23:06:13,192 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-06 23:06:13,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-06 23:06:13,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:06:13,202 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-06 23:06:13,207 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 23:06:13,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:06:13 BoogieIcfgContainer [2023-11-06 23:06:13,242 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 23:06:13,243 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:06:13,244 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:06:13,244 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:06:13,245 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:06:12" (3/4) ... [2023-11-06 23:06:13,247 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 23:06:13,249 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:06:13,251 INFO L158 Benchmark]: Toolchain (without parser) took 3118.27ms. Allocated memory was 157.3MB in the beginning and 205.5MB in the end (delta: 48.2MB). Free memory was 108.0MB in the beginning and 155.2MB in the end (delta: -47.1MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. [2023-11-06 23:06:13,251 INFO L158 Benchmark]: CDTParser took 0.66ms. Allocated memory is still 119.5MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:06:13,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1838.72ms. Allocated memory is still 157.3MB. Free memory was 108.0MB in the beginning and 90.2MB in the end (delta: 17.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-06 23:06:13,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.48ms. Allocated memory is still 157.3MB. Free memory was 90.2MB in the beginning and 86.7MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:06:13,254 INFO L158 Benchmark]: Boogie Preprocessor took 35.43ms. Allocated memory is still 157.3MB. Free memory was 86.7MB in the beginning and 85.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:06:13,255 INFO L158 Benchmark]: RCFGBuilder took 596.85ms. Allocated memory is still 157.3MB. Free memory was 85.3MB in the beginning and 72.0MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 23:06:13,256 INFO L158 Benchmark]: TraceAbstraction took 546.88ms. Allocated memory was 157.3MB in the beginning and 205.5MB in the end (delta: 48.2MB). Free memory was 71.3MB in the beginning and 155.2MB in the end (delta: -83.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:06:13,256 INFO L158 Benchmark]: Witness Printer took 5.63ms. Allocated memory is still 205.5MB. Free memory was 155.2MB in the beginning and 155.2MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:06:13,261 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66ms. Allocated memory is still 119.5MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1838.72ms. Allocated memory is still 157.3MB. Free memory was 108.0MB in the beginning and 90.2MB in the end (delta: 17.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.48ms. Allocated memory is still 157.3MB. Free memory was 90.2MB in the beginning and 86.7MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.43ms. Allocated memory is still 157.3MB. Free memory was 86.7MB in the beginning and 85.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 596.85ms. Allocated memory is still 157.3MB. Free memory was 85.3MB in the beginning and 72.0MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 546.88ms. Allocated memory was 157.3MB in the beginning and 205.5MB in the end (delta: 48.2MB). Free memory was 71.3MB in the beginning and 155.2MB in the end (delta: -83.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.63ms. Allocated memory is still 205.5MB. Free memory was 155.2MB in the beginning and 155.2MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. * 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: 1556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int CWE191_Integer_Underflow__int_fgets_multiply_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData; VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_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] [L1581] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_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={4:0}] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741831, argc=1073741831, argv={1073741828:1073741827}, argv={1073741828:1073741827}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_multiply_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1566] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] EXPR data = atoi(inputBuffer) [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564-L1574] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1575] CWE191_Integer_Underflow__int_fgets_multiply_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_multiply_45_badData; VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE data < 0 VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] data * 2 VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 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 [2023-11-06 23:06:13,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 b5b0306ceebc7138ed940cef6b6848d6eb995b72db2fae2138badb859ab7a0a1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:06:16,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:06:16,668 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-06 23:06:16,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:06:16,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:06:16,682 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-06 23:06:16,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:06:16,743 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:06:16,744 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:06:16,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:06:16,751 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:06:16,752 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:06:16,753 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:06:16,755 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:06:16,757 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:06:16,757 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:06:16,758 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:06:16,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:06:16,759 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:06:16,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:06:16,760 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 23:06:16,761 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 23:06:16,762 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 23:06:16,762 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 23:06:16,763 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:06:16,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:06:16,764 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:06:16,765 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:06:16,765 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:06:16,766 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:06:16,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:06:16,768 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:06:16,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:06:16,769 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:06:16,769 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 23:06:16,770 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 23:06:16,770 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:06:16,770 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:06:16,771 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:06:16,772 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:06:16,772 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 23:06:16,773 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:06:16,773 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_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5b0306ceebc7138ed940cef6b6848d6eb995b72db2fae2138badb859ab7a0a1 [2023-11-06 23:06:17,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:06:17,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:06:17,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:06:17,384 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:06:17,385 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:06:17,387 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i [2023-11-06 23:06:21,071 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:06:21,633 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:06:21,634 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i [2023-11-06 23:06:21,667 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/data/6b58525a3/2defb0c4c50641bda56aa7ab668c5f63/FLAG20a7e482c [2023-11-06 23:06:21,684 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/data/6b58525a3/2defb0c4c50641bda56aa7ab668c5f63 [2023-11-06 23:06:21,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:06:21,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:06:21,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:06:21,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:06:21,697 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:06:21,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:06:21" (1/1) ... [2023-11-06 23:06:21,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f0a5a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:21, skipping insertion in model container [2023-11-06 23:06:21,700 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:06:21" (1/1) ... [2023-11-06 23:06:21,784 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:06:22,303 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 23:06:22,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:06:22,983 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:06:23,014 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 23:06:23,084 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:06:23,330 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:06:23,331 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:06:23,331 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:06:23,332 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:06:23,332 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:06:23,332 WARN L672 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:06:23,341 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:06:23,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:23 WrapperNode [2023-11-06 23:06:23,343 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:06:23,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:06:23,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:06:23,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:06:23,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:23" (1/1) ... [2023-11-06 23:06:23,415 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:23" (1/1) ... [2023-11-06 23:06:23,464 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2023-11-06 23:06:23,465 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:06:23,466 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:06:23,466 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:06:23,467 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:06:23,478 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:23" (1/1) ... [2023-11-06 23:06:23,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:23" (1/1) ... [2023-11-06 23:06:23,484 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:23" (1/1) ... [2023-11-06 23:06:23,484 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:23" (1/1) ... [2023-11-06 23:06:23,497 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:23" (1/1) ... [2023-11-06 23:06:23,500 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:23" (1/1) ... [2023-11-06 23:06:23,504 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:23" (1/1) ... [2023-11-06 23:06:23,506 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:23" (1/1) ... [2023-11-06 23:06:23,513 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:06:23,514 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:06:23,514 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:06:23,514 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:06:23,515 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:23" (1/1) ... [2023-11-06 23:06:23,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:06:23,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:06:23,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:06:23,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:06:23,606 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-06 23:06:23,606 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-06 23:06:23,606 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-06 23:06:23,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:06:23,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 23:06:23,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:06:23,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:06:23,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:06:23,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:06:23,608 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-06 23:06:23,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-06 23:06:23,828 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:06:23,831 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:06:24,083 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:06:24,090 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:06:24,090 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 23:06:24,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:06:24 BoogieIcfgContainer [2023-11-06 23:06:24,093 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:06:24,096 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:06:24,096 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:06:24,106 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:06:24,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:06:21" (1/3) ... [2023-11-06 23:06:24,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459d3007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:06:24, skipping insertion in model container [2023-11-06 23:06:24,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:23" (2/3) ... [2023-11-06 23:06:24,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459d3007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:06:24, skipping insertion in model container [2023-11-06 23:06:24,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:06:24" (3/3) ... [2023-11-06 23:06:24,111 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i [2023-11-06 23:06:24,139 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:06:24,139 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-06 23:06:24,245 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:06:24,254 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=LoopsAndPotentialCycles, 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;@29bf97cf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:06:24,255 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-06 23:06:24,260 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 23:06:24,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 23:06:24,272 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:06:24,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:06:24,274 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-06 23:06:24,288 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:06:24,289 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2023-11-06 23:06:24,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:06:24,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204151130] [2023-11-06 23:06:24,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:06:24,317 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 [2023-11-06 23:06:24,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:06:24,323 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:06:24,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:06:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:06:24,585 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:06:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:06:24,697 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-06 23:06:24,700 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 23:06:24,702 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-06 23:06:24,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-06 23:06:24,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:06:24,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:06:24,927 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-06 23:06:24,933 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 23:06:24,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:06:24 BoogieIcfgContainer [2023-11-06 23:06:24,990 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 23:06:24,993 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:06:24,993 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:06:24,994 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:06:24,995 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:06:24" (3/4) ... [2023-11-06 23:06:24,998 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 23:06:24,999 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:06:25,001 INFO L158 Benchmark]: Toolchain (without parser) took 3311.44ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 54.0MB in the beginning and 54.8MB in the end (delta: -717.4kB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2023-11-06 23:06:25,002 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 60.8MB. Free memory is still 36.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:06:25,004 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1652.62ms. Allocated memory is still 81.8MB. Free memory was 53.9MB in the beginning and 52.5MB in the end (delta: 1.4MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2023-11-06 23:06:25,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.26ms. Allocated memory is still 81.8MB. Free memory was 52.0MB in the beginning and 49.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:06:25,011 INFO L158 Benchmark]: Boogie Preprocessor took 46.75ms. Allocated memory is still 81.8MB. Free memory was 49.0MB in the beginning and 47.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:06:25,011 INFO L158 Benchmark]: RCFGBuilder took 579.57ms. Allocated memory is still 81.8MB. Free memory was 47.0MB in the beginning and 33.2MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 23:06:25,012 INFO L158 Benchmark]: TraceAbstraction took 894.15ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 32.3MB in the beginning and 55.3MB in the end (delta: -23.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:06:25,013 INFO L158 Benchmark]: Witness Printer took 6.56ms. Allocated memory is still 98.6MB. Free memory was 55.3MB in the beginning and 54.8MB in the end (delta: 557.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:06:25,017 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 60.8MB. Free memory is still 36.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1652.62ms. Allocated memory is still 81.8MB. Free memory was 53.9MB in the beginning and 52.5MB in the end (delta: 1.4MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 121.26ms. Allocated memory is still 81.8MB. Free memory was 52.0MB in the beginning and 49.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.75ms. Allocated memory is still 81.8MB. Free memory was 49.0MB in the beginning and 47.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 579.57ms. Allocated memory is still 81.8MB. Free memory was 47.0MB in the beginning and 33.2MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 894.15ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 32.3MB in the beginning and 55.3MB in the end (delta: -23.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.56ms. Allocated memory is still 98.6MB. Free memory was 55.3MB in the beginning and 54.8MB in the end (delta: 557.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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: 1556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int CWE191_Integer_Underflow__int_fgets_multiply_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData; VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_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] [L1581] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_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={4:0}] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_multiply_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1566] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] EXPR data = atoi(inputBuffer) [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564-L1574] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1575] CWE191_Integer_Underflow__int_fgets_multiply_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_multiply_45_badData; VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_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] [L1554] COND TRUE data < 0 VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_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] [L1556] data * 2 VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_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: 1556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 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 [2023-11-06 23:06:25,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb03c13-8c39-40ed-b528-39a395a6b948/bin/uautomizer-verify-WvqO1wxjHP/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