./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_42_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/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_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/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_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/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 c59176cd00520a5a4aca656e3f81e02c964e0650c21d035534f9139b7ed3a3bf --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:43:57,711 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:43:57,777 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 05:43:57,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:43:57,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:43:57,811 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:43:57,811 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:43:57,812 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:43:57,813 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:43:57,813 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:43:57,814 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:43:57,814 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:43:57,815 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:43:57,816 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:43:57,816 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:43:57,817 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:43:57,817 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:43:57,818 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:43:57,818 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:43:57,819 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:43:57,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:43:57,820 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:43:57,821 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:43:57,821 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:43:57,821 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:43:57,822 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:43:57,822 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:43:57,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:43:57,823 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:43:57,824 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:43:57,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:43:57,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:43:57,825 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:43:57,825 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:43:57,825 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:43:57,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:43:57,826 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:43:57,826 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:43:57,826 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:43:57,826 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:43:57,826 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:43:57,827 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_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c59176cd00520a5a4aca656e3f81e02c964e0650c21d035534f9139b7ed3a3bf [2023-11-29 05:43:58,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:43:58,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:43:58,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:43:58,066 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:43:58,067 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:43:58,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_42_bad.i [2023-11-29 05:44:00,764 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:44:01,064 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:44:01,064 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_42_bad.i [2023-11-29 05:44:01,090 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/data/ca0b95a89/33b2e133063e4721bbd231a95b54a1bd/FLAG23bd43549 [2023-11-29 05:44:01,103 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/data/ca0b95a89/33b2e133063e4721bbd231a95b54a1bd [2023-11-29 05:44:01,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:44:01,107 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:44:01,109 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:44:01,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:44:01,114 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:44:01,114 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:44:01" (1/1) ... [2023-11-29 05:44:01,115 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b0d4c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:01, skipping insertion in model container [2023-11-29 05:44:01,115 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:44:01" (1/1) ... [2023-11-29 05:44:01,175 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:44:01,857 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:44:01,868 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:44:01,950 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:44:02,101 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:44:02,102 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:44:02,102 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:44:02,102 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:44:02,102 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:44:02,110 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:44:02,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:02 WrapperNode [2023-11-29 05:44:02,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:44:02,111 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:44:02,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:44:02,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:44:02,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:02" (1/1) ... [2023-11-29 05:44:02,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:02" (1/1) ... [2023-11-29 05:44:02,161 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2023-11-29 05:44:02,161 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:44:02,162 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:44:02,162 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:44:02,162 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:44:02,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:02" (1/1) ... [2023-11-29 05:44:02,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:02" (1/1) ... [2023-11-29 05:44:02,173 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:02" (1/1) ... [2023-11-29 05:44:02,184 INFO L175 MemorySlicer]: Split 4 memory accesses to 3 slices as follows [1, 1, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 1, 0]. The 2 writes are split as follows [0, 0, 2]. [2023-11-29 05:44:02,185 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:02" (1/1) ... [2023-11-29 05:44:02,185 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:02" (1/1) ... [2023-11-29 05:44:02,190 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:02" (1/1) ... [2023-11-29 05:44:02,192 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:02" (1/1) ... [2023-11-29 05:44:02,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:02" (1/1) ... [2023-11-29 05:44:02,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:02" (1/1) ... [2023-11-29 05:44:02,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:44:02,198 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:44:02,198 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:44:02,198 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:44:02,198 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:02" (1/1) ... [2023-11-29 05:44:02,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:44:02,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:02,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:02,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:44:02,249 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-29 05:44:02,250 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 05:44:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 05:44:02,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:44:02,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-29 05:44:02,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-29 05:44:02,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-29 05:44:02,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:44:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:44:02,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:44:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:44:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 05:44:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:44:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 05:44:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 05:44:02,388 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:44:02,390 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:44:02,495 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:44:02,523 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:44:02,523 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 05:44:02,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:44:02 BoogieIcfgContainer [2023-11-29 05:44:02,524 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:44:02,526 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:44:02,527 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:44:02,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:44:02,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:44:01" (1/3) ... [2023-11-29 05:44:02,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c4034b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:44:02, skipping insertion in model container [2023-11-29 05:44:02,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:02" (2/3) ... [2023-11-29 05:44:02,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c4034b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:44:02, skipping insertion in model container [2023-11-29 05:44:02,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:44:02" (3/3) ... [2023-11-29 05:44:02,533 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_42_bad.i [2023-11-29 05:44:02,551 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:44:02,551 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 05:44:02,603 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:44:02,609 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;@489e1696, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:44:02,610 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 05:44:02,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 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) [2023-11-29 05:44:02,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 05:44:02,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:02,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:02,622 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 05:44:02,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:02,627 INFO L85 PathProgramCache]: Analyzing trace with hash 610880783, now seen corresponding path program 1 times [2023-11-29 05:44:02,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:02,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928564821] [2023-11-29 05:44:02,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:02,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:02,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:02,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:02,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:02,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928564821] [2023-11-29 05:44:02,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928564821] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:02,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:44:02,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:44:02,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214538034] [2023-11-29 05:44:02,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:02,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:44:02,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:02,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:44:02,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:44:02,933 INFO L87 Difference]: Start difference. First operand has 20 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 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) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 05:44:02,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:02,968 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2023-11-29 05:44:02,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:44:02,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-11-29 05:44:02,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:02,975 INFO L225 Difference]: With dead ends: 21 [2023-11-29 05:44:02,976 INFO L226 Difference]: Without dead ends: 15 [2023-11-29 05:44:02,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:44:02,982 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 3 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:02,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 31 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:44:02,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-29 05:44:03,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-29 05:44:03,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 05:44:03,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2023-11-29 05:44:03,009 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2023-11-29 05:44:03,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:03,010 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2023-11-29 05:44:03,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 05:44:03,010 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-29 05:44:03,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 05:44:03,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:03,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:03,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:44:03,012 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 05:44:03,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:03,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1757435149, now seen corresponding path program 1 times [2023-11-29 05:44:03,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:03,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169374056] [2023-11-29 05:44:03,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:03,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:03,050 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:03,093 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:03,093 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 05:44:03,095 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 05:44:03,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 05:44:03,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:44:03,101 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-29 05:44:03,104 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:44:03,120 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet103 [2023-11-29 05:44:03,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:44:03 BoogieIcfgContainer [2023-11-29 05:44:03,129 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:44:03,130 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:44:03,130 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:44:03,130 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:44:03,131 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:44:02" (3/4) ... [2023-11-29 05:44:03,133 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 05:44:03,134 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:44:03,134 INFO L158 Benchmark]: Toolchain (without parser) took 2026.98ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 98.1MB in the beginning and 93.3MB in the end (delta: 4.8MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2023-11-29 05:44:03,135 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 132.1MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:44:03,135 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1001.74ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 97.8MB in the beginning and 102.1MB in the end (delta: -4.3MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. [2023-11-29 05:44:03,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.45ms. Allocated memory is still 159.4MB. Free memory was 102.1MB in the beginning and 98.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:44:03,137 INFO L158 Benchmark]: Boogie Preprocessor took 35.22ms. Allocated memory is still 159.4MB. Free memory was 98.6MB in the beginning and 96.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:44:03,137 INFO L158 Benchmark]: RCFGBuilder took 326.40ms. Allocated memory is still 159.4MB. Free memory was 96.5MB in the beginning and 81.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 05:44:03,138 INFO L158 Benchmark]: TraceAbstraction took 602.97ms. Allocated memory is still 159.4MB. Free memory was 81.2MB in the beginning and 94.4MB in the end (delta: -13.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:44:03,138 INFO L158 Benchmark]: Witness Printer took 3.71ms. Allocated memory is still 159.4MB. Free memory was 94.4MB in the beginning and 93.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:44:03,141 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 132.1MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1001.74ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 97.8MB in the beginning and 102.1MB in the end (delta: -4.3MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.45ms. Allocated memory is still 159.4MB. Free memory was 102.1MB in the beginning and 98.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.22ms. Allocated memory is still 159.4MB. Free memory was 98.6MB in the beginning and 96.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 326.40ms. Allocated memory is still 159.4MB. Free memory was 96.5MB in the beginning and 81.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 602.97ms. Allocated memory is still 159.4MB. Free memory was 81.2MB in the beginning and 94.4MB in the end (delta: -13.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.71ms. Allocated memory is still 159.4MB. Free memory was 94.4MB in the beginning and 93.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554, overapproximation of large string literal at line 1577. 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); [L1577] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1577] 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] [L1578] CALL CWE190_Integer_Overflow__int_fgets_multiply_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] EXPR data = atoi(inputBuffer) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1550-L1560] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1568] COND TRUE data > 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1570]: 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, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 18 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 05:44:03,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/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_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/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_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/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 c59176cd00520a5a4aca656e3f81e02c964e0650c21d035534f9139b7ed3a3bf --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:44:05,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:44:05,083 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-29 05:44:05,089 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:44:05,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:44:05,091 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-29 05:44:05,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:44:05,121 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:44:05,122 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:44:05,122 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:44:05,123 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:44:05,123 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:44:05,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:44:05,125 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:44:05,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:44:05,126 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:44:05,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:44:05,127 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:44:05,128 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:44:05,128 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:44:05,129 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:44:05,129 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:44:05,130 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 05:44:05,130 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 05:44:05,131 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:44:05,131 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 05:44:05,131 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:44:05,132 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:44:05,132 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:44:05,133 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:44:05,133 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:44:05,134 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:44:05,134 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:44:05,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:44:05,134 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:44:05,135 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:44:05,135 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:44:05,135 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 05:44:05,135 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 05:44:05,135 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:44:05,136 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:44:05,136 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:44:05,136 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:44:05,136 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:44:05,137 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 05:44:05,137 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_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c59176cd00520a5a4aca656e3f81e02c964e0650c21d035534f9139b7ed3a3bf [2023-11-29 05:44:05,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:44:05,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:44:05,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:44:05,465 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:44:05,465 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:44:05,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_42_bad.i [2023-11-29 05:44:08,296 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:44:08,583 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:44:08,583 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_42_bad.i [2023-11-29 05:44:08,608 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/data/970e694fe/3a84a502a75949b68e50fe4556c41764/FLAG2c62165c0 [2023-11-29 05:44:08,622 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/data/970e694fe/3a84a502a75949b68e50fe4556c41764 [2023-11-29 05:44:08,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:44:08,626 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:44:08,627 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:44:08,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:44:08,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:44:08,633 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:44:08" (1/1) ... [2023-11-29 05:44:08,634 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@690cb8ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:08, skipping insertion in model container [2023-11-29 05:44:08,634 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:44:08" (1/1) ... [2023-11-29 05:44:08,701 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:44:09,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:44:09,444 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:44:09,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:44:09,678 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:44:09,678 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:44:09,678 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:44:09,679 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:44:09,679 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:44:09,684 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:44:09,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:09 WrapperNode [2023-11-29 05:44:09,685 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:44:09,686 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:44:09,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:44:09,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:44:09,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:09" (1/1) ... [2023-11-29 05:44:09,720 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:09" (1/1) ... [2023-11-29 05:44:09,742 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2023-11-29 05:44:09,742 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:44:09,743 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:44:09,743 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:44:09,743 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:44:09,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:09" (1/1) ... [2023-11-29 05:44:09,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:09" (1/1) ... [2023-11-29 05:44:09,756 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:09" (1/1) ... [2023-11-29 05:44:09,771 INFO L175 MemorySlicer]: Split 4 memory accesses to 3 slices as follows [1, 1, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 1, 0]. The 2 writes are split as follows [0, 0, 2]. [2023-11-29 05:44:09,771 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:09" (1/1) ... [2023-11-29 05:44:09,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:09" (1/1) ... [2023-11-29 05:44:09,781 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:09" (1/1) ... [2023-11-29 05:44:09,783 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:09" (1/1) ... [2023-11-29 05:44:09,787 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:09" (1/1) ... [2023-11-29 05:44:09,789 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:09" (1/1) ... [2023-11-29 05:44:09,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:44:09,795 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:44:09,795 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:44:09,795 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:44:09,796 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:09" (1/1) ... [2023-11-29 05:44:09,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:44:09,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:09,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:09,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:44:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-29 05:44:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 05:44:09,877 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 05:44:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:44:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 05:44:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 05:44:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 05:44:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:44:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:44:09,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:44:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:44:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 05:44:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2023-11-29 05:44:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2023-11-29 05:44:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2023-11-29 05:44:10,041 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:44:10,043 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:44:10,173 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:44:10,206 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:44:10,206 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 05:44:10,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:44:10 BoogieIcfgContainer [2023-11-29 05:44:10,207 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:44:10,209 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:44:10,210 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:44:10,213 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:44:10,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:44:08" (1/3) ... [2023-11-29 05:44:10,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@832176c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:44:10, skipping insertion in model container [2023-11-29 05:44:10,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:09" (2/3) ... [2023-11-29 05:44:10,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@832176c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:44:10, skipping insertion in model container [2023-11-29 05:44:10,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:44:10" (3/3) ... [2023-11-29 05:44:10,215 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_42_bad.i [2023-11-29 05:44:10,229 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:44:10,230 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 05:44:10,268 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:44:10,273 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;@31584b8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:44:10,273 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 05:44:10,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 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) [2023-11-29 05:44:10,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 05:44:10,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:10,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:10,286 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 05:44:10,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:10,292 INFO L85 PathProgramCache]: Analyzing trace with hash 610880783, now seen corresponding path program 1 times [2023-11-29 05:44:10,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:44:10,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668796190] [2023-11-29 05:44:10,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:10,304 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 05:44:10,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:44:10,307 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/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 05:44:10,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/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 05:44:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:10,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:10,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:10,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:10,481 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:44:10,481 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:44:10,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668796190] [2023-11-29 05:44:10,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668796190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:10,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:44:10,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:44:10,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875468994] [2023-11-29 05:44:10,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:10,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:44:10,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:44:10,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:44:10,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:44:10,526 INFO L87 Difference]: Start difference. First operand has 20 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 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) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 05:44:10,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:10,580 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2023-11-29 05:44:10,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:44:10,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-11-29 05:44:10,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:10,588 INFO L225 Difference]: With dead ends: 21 [2023-11-29 05:44:10,589 INFO L226 Difference]: Without dead ends: 15 [2023-11-29 05:44:10,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:44:10,594 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 3 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:10,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 31 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:44:10,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-29 05:44:10,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-29 05:44:10,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 05:44:10,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2023-11-29 05:44:10,627 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2023-11-29 05:44:10,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:10,628 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2023-11-29 05:44:10,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 05:44:10,629 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-29 05:44:10,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 05:44:10,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:10,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:10,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/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 05:44:10,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/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 05:44:10,831 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 05:44:10,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:10,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1757435149, now seen corresponding path program 1 times [2023-11-29 05:44:10,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:44:10,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536922697] [2023-11-29 05:44:10,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:10,834 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 05:44:10,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:44:10,835 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/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 05:44:10,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/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 (3)] Waiting until timeout for monitored process [2023-11-29 05:44:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:10,926 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:10,986 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-29 05:44:10,986 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 05:44:10,988 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 05:44:10,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 05:44:10,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/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 (3)] Ended with exit code 0 [2023-11-29 05:44:11,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/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 05:44:11,193 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-29 05:44:11,196 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:44:11,211 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet101 [2023-11-29 05:44:11,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:44:11 BoogieIcfgContainer [2023-11-29 05:44:11,220 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:44:11,221 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:44:11,221 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:44:11,221 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:44:11,222 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:44:10" (3/4) ... [2023-11-29 05:44:11,223 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 05:44:11,224 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:44:11,225 INFO L158 Benchmark]: Toolchain (without parser) took 2598.75ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 36.4MB in the beginning and 48.7MB in the end (delta: -12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 05:44:11,225 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 71.3MB. Free memory was 47.4MB in the beginning and 47.3MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:44:11,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1057.85ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 36.2MB in the beginning and 46.8MB in the end (delta: -10.6MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2023-11-29 05:44:11,227 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.89ms. Allocated memory is still 96.5MB. Free memory was 46.8MB in the beginning and 43.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:44:11,227 INFO L158 Benchmark]: Boogie Preprocessor took 51.08ms. Allocated memory is still 96.5MB. Free memory was 43.8MB in the beginning and 41.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:44:11,227 INFO L158 Benchmark]: RCFGBuilder took 411.92ms. Allocated memory is still 96.5MB. Free memory was 40.5MB in the beginning and 53.4MB in the end (delta: -12.8MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2023-11-29 05:44:11,228 INFO L158 Benchmark]: TraceAbstraction took 1011.04ms. Allocated memory is still 96.5MB. Free memory was 52.9MB in the beginning and 49.0MB in the end (delta: 3.9MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2023-11-29 05:44:11,228 INFO L158 Benchmark]: Witness Printer took 3.05ms. Allocated memory is still 96.5MB. Free memory was 49.0MB in the beginning and 48.7MB in the end (delta: 339.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:44:11,232 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 71.3MB. Free memory was 47.4MB in the beginning and 47.3MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1057.85ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 36.2MB in the beginning and 46.8MB in the end (delta: -10.6MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.89ms. Allocated memory is still 96.5MB. Free memory was 46.8MB in the beginning and 43.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.08ms. Allocated memory is still 96.5MB. Free memory was 43.8MB in the beginning and 41.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 411.92ms. Allocated memory is still 96.5MB. Free memory was 40.5MB in the beginning and 53.4MB in the end (delta: -12.8MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1011.04ms. Allocated memory is still 96.5MB. Free memory was 52.9MB in the beginning and 49.0MB in the end (delta: 3.9MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * Witness Printer took 3.05ms. Allocated memory is still 96.5MB. Free memory was 49.0MB in the beginning and 48.7MB in the end (delta: 339.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554, overapproximation of large string literal at line 1577. 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); [L1577] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1577] 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] [L1578] CALL CWE190_Integer_Overflow__int_fgets_multiply_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] EXPR data = atoi(inputBuffer) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1550-L1560] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1568] COND TRUE data > 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1570]: 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, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 18 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 05:44:11,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cca8f42-1223-4941-8cb2-e0a91ab31fb6/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