./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_67_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_67_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx --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 3e96425cf6306e577fc0f57b7370846a01258c7d5fcb3ad4be19d3433ecd6fe3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:00:41,616 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:00:41,699 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-21 21:00:41,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:00:41,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:00:41,732 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:00:41,732 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:00:41,733 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:00:41,734 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:00:41,734 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:00:41,735 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:00:41,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:00:41,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:00:41,737 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:00:41,737 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:00:41,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:00:41,739 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:00:41,739 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:00:41,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:00:41,740 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:00:41,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:00:41,742 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:00:41,742 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 21:00:41,743 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:00:41,743 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:00:41,744 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:00:41,745 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:00:41,745 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:00:41,746 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:00:41,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:00:41,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:41,747 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:00:41,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:00:41,748 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:00:41,749 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:00:41,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:00:41,750 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:00:41,750 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:00:41,751 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:00:41,751 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:00:41,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:00:41,752 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_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e96425cf6306e577fc0f57b7370846a01258c7d5fcb3ad4be19d3433ecd6fe3 [2023-11-21 21:00:42,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:00:42,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:00:42,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:00:42,056 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:00:42,057 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:00:42,058 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_67_bad.i [2023-11-21 21:00:45,180 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:00:45,688 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:00:45,689 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_67_bad.i [2023-11-21 21:00:45,713 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/data/099536ee8/e81d14a4897b4b13a1cba15638f24caf/FLAGc4e0229b8 [2023-11-21 21:00:45,729 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/data/099536ee8/e81d14a4897b4b13a1cba15638f24caf [2023-11-21 21:00:45,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:00:45,738 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:00:45,740 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:45,740 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:00:45,746 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:00:45,748 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:45" (1/1) ... [2023-11-21 21:00:45,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b9d22a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:45, skipping insertion in model container [2023-11-21 21:00:45,750 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:45" (1/1) ... [2023-11-21 21:00:45,842 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:00:46,391 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 21:00:47,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:47,032 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:00:47,052 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 21:00:47,126 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:47,310 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:47,311 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:47,311 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:47,311 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:47,312 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:47,312 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:47,320 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:00:47,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47 WrapperNode [2023-11-21 21:00:47,322 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:47,323 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:47,323 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:00:47,324 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:00:47,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ... [2023-11-21 21:00:47,379 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ... [2023-11-21 21:00:47,425 INFO L138 Inliner]: procedures = 501, calls = 73, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2023-11-21 21:00:47,425 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:47,426 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:00:47,427 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:00:47,427 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:00:47,439 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ... [2023-11-21 21:00:47,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ... [2023-11-21 21:00:47,454 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ... [2023-11-21 21:00:47,479 INFO L187 HeapSplitter]: Split 7 memory accesses to 5 slices as follows [1, 1, 1, 2, 2] [2023-11-21 21:00:47,481 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ... [2023-11-21 21:00:47,482 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ... [2023-11-21 21:00:47,502 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ... [2023-11-21 21:00:47,512 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ... [2023-11-21 21:00:47,515 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ... [2023-11-21 21:00:47,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ... [2023-11-21 21:00:47,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:00:47,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:00:47,534 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:00:47,534 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:00:47,535 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ... [2023-11-21 21:00:47,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:47,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:47,571 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:47,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:00:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 21:00:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 21:00:47,604 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 21:00:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:00:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-21 21:00:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-21 21:00:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-21 21:00:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-21 21:00:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-21 21:00:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 21:00:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 21:00:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 21:00:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 21:00:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 21:00:47,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:00:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:00:47,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:00:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:00:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 21:00:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 21:00:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 21:00:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 21:00:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 21:00:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 21:00:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 21:00:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 21:00:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 21:00:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 21:00:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 21:00:47,800 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:00:47,803 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:00:47,984 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:00:48,043 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:00:48,043 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 21:00:48,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:48 BoogieIcfgContainer [2023-11-21 21:00:48,045 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:00:48,047 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:00:48,047 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:00:48,051 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:00:48,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:00:45" (1/3) ... [2023-11-21 21:00:48,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8c03fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:48, skipping insertion in model container [2023-11-21 21:00:48,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (2/3) ... [2023-11-21 21:00:48,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8c03fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:48, skipping insertion in model container [2023-11-21 21:00:48,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:48" (3/3) ... [2023-11-21 21:00:48,054 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_67_bad.i [2023-11-21 21:00:48,074 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:00:48,074 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-21 21:00:48,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:00:48,132 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;@44192fc3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:00:48,132 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-21 21:00:48,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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) [2023-11-21 21:00:48,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 21:00:48,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:48,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:48,147 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 21:00:48,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:48,156 INFO L85 PathProgramCache]: Analyzing trace with hash 918150768, now seen corresponding path program 1 times [2023-11-21 21:00:48,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:48,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335813353] [2023-11-21 21:00:48,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:48,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:48,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:48,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:48,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:48,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335813353] [2023-11-21 21:00:48,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335813353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:48,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:48,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 21:00:48,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155575373] [2023-11-21 21:00:48,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:48,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 21:00:48,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:48,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 21:00:48,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 21:00:48,952 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-11-21 21:00:49,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:49,035 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2023-11-21 21:00:49,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 21:00:49,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 8 [2023-11-21 21:00:49,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:00:49,049 INFO L225 Difference]: With dead ends: 15 [2023-11-21 21:00:49,049 INFO L226 Difference]: Without dead ends: 11 [2023-11-21 21:00:49,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 21:00:49,065 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 21:00:49,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 23 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 21:00:49,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-21 21:00:49,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-21 21:00:49,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 21:00:49,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2023-11-21 21:00:49,100 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2023-11-21 21:00:49,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:00:49,101 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-11-21 21:00:49,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-11-21 21:00:49,102 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-11-21 21:00:49,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 21:00:49,103 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:49,103 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:49,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:00:49,104 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 21:00:49,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:49,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1602097210, now seen corresponding path program 1 times [2023-11-21 21:00:49,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:49,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223589883] [2023-11-21 21:00:49,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:49,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:49,142 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:49,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:49,184 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 21:00:49,186 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-21 21:00:49,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-21 21:00:49,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 21:00:49,192 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-21 21:00:49,196 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 21:00:49,212 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~myStruct!structFirst [2023-11-21 21:00:49,215 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~myStruct!structFirst has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-21 21:00:49,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:00:49 BoogieIcfgContainer [2023-11-21 21:00:49,225 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 21:00:49,226 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:00:49,226 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:00:49,227 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:00:49,228 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:48" (3/4) ... [2023-11-21 21:00:49,230 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 21:00:49,232 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:00:49,233 INFO L158 Benchmark]: Toolchain (without parser) took 3494.84ms. Allocated memory is still 192.9MB. Free memory was 159.1MB in the beginning and 97.0MB in the end (delta: 62.1MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2023-11-21 21:00:49,234 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 192.9MB. Free memory is still 169.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:00:49,240 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1582.59ms. Allocated memory is still 192.9MB. Free memory was 159.1MB in the beginning and 95.1MB in the end (delta: 64.1MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-21 21:00:49,240 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.67ms. Allocated memory is still 192.9MB. Free memory was 95.1MB in the beginning and 92.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 21:00:49,241 INFO L158 Benchmark]: Boogie Preprocessor took 106.22ms. Allocated memory is still 192.9MB. Free memory was 92.0MB in the beginning and 89.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:00:49,242 INFO L158 Benchmark]: RCFGBuilder took 511.52ms. Allocated memory is still 192.9MB. Free memory was 89.4MB in the beginning and 158.9MB in the end (delta: -69.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2023-11-21 21:00:49,243 INFO L158 Benchmark]: TraceAbstraction took 1178.29ms. Allocated memory is still 192.9MB. Free memory was 157.8MB in the beginning and 97.0MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2023-11-21 21:00:49,243 INFO L158 Benchmark]: Witness Printer took 5.64ms. Allocated memory is still 192.9MB. Free memory is still 97.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:00:49,246 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 192.9MB. Free memory is still 169.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1582.59ms. Allocated memory is still 192.9MB. Free memory was 159.1MB in the beginning and 95.1MB in the end (delta: 64.1MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.67ms. Allocated memory is still 192.9MB. Free memory was 95.1MB in the beginning and 92.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.22ms. Allocated memory is still 192.9MB. Free memory was 92.0MB in the beginning and 89.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 511.52ms. Allocated memory is still 192.9MB. Free memory was 89.4MB in the beginning and 158.9MB in the end (delta: -69.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1178.29ms. Allocated memory is still 192.9MB. Free memory was 157.8MB in the beginning and 97.0MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Witness Printer took 5.64ms. Allocated memory is still 192.9MB. Free memory is still 97.0MB. 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 #in~myStruct!structFirst - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~myStruct!structFirst has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - 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: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562. 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); [L1575] 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) [L1575] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=2147483648, argc=2147483648, argv={2147483650:2147483649}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL CWE190_Integer_Overflow__int_fgets_add_67_bad() [L1555] int data; [L1556] CWE190_Integer_Overflow__int_fgets_add_67_structType myStruct; [L1557] data = 0 [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1560] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] EXPR data = atoi(inputBuffer) [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558-L1568] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1569] myStruct.structFirst = data [L1570] CALL CWE190_Integer_Overflow__int_fgets_add_67b_badSink(myStruct) [L1581] EXPR myStruct.structFirst [L1581] int data = myStruct.structFirst; [L1583] data + 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myStruct={6:0}] - UnprovableResult [Line: 1583]: 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 9 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.5s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 [2023-11-21 21:00:49,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_67_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx --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 3e96425cf6306e577fc0f57b7370846a01258c7d5fcb3ad4be19d3433ecd6fe3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:00:51,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:00:52,093 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-21 21:00:52,101 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:00:52,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:00:52,105 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-21 21:00:52,152 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:00:52,153 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:00:52,154 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:00:52,160 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:00:52,161 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:00:52,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:00:52,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:00:52,164 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:00:52,165 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:00:52,165 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:00:52,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:00:52,167 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:00:52,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:00:52,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:00:52,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:00:52,169 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:00:52,170 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 21:00:52,170 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 21:00:52,170 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 21:00:52,171 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 21:00:52,171 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:00:52,172 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:00:52,172 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:00:52,173 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:00:52,175 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:00:52,175 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:00:52,175 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:00:52,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:52,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:00:52,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:00:52,177 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:00:52,178 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 21:00:52,178 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 21:00:52,178 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:00:52,179 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:00:52,179 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:00:52,179 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:00:52,180 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:00:52,180 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 21:00:52,181 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_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e96425cf6306e577fc0f57b7370846a01258c7d5fcb3ad4be19d3433ecd6fe3 [2023-11-21 21:00:52,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:00:52,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:00:52,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:00:52,643 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:00:52,644 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:00:52,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_67_bad.i [2023-11-21 21:00:55,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:00:56,371 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:00:56,372 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_67_bad.i [2023-11-21 21:00:56,413 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/data/19d5a8b54/9074f14f0c07425186ea44f202de31a8/FLAG667f491b8 [2023-11-21 21:00:56,432 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/data/19d5a8b54/9074f14f0c07425186ea44f202de31a8 [2023-11-21 21:00:56,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:00:56,445 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:00:56,449 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:56,451 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:00:56,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:00:56,457 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:56" (1/1) ... [2023-11-21 21:00:56,458 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@154db985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:56, skipping insertion in model container [2023-11-21 21:00:56,459 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:56" (1/1) ... [2023-11-21 21:00:56,552 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:00:56,982 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 21:00:57,582 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:57,606 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:00:57,641 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 21:00:57,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:57,900 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:57,900 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:57,900 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:57,901 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:57,901 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:57,901 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:57,912 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:00:57,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:57 WrapperNode [2023-11-21 21:00:57,913 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:57,914 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:57,914 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:00:57,915 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:00:57,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:57" (1/1) ... [2023-11-21 21:00:57,956 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:57" (1/1) ... [2023-11-21 21:00:57,984 INFO L138 Inliner]: procedures = 506, calls = 73, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 64 [2023-11-21 21:00:57,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:57,985 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:00:57,985 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:00:57,985 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:00:58,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:57" (1/1) ... [2023-11-21 21:00:58,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:57" (1/1) ... [2023-11-21 21:00:58,011 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:57" (1/1) ... [2023-11-21 21:00:58,026 INFO L187 HeapSplitter]: Split 7 memory accesses to 5 slices as follows [1, 1, 1, 2, 2] [2023-11-21 21:00:58,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:57" (1/1) ... [2023-11-21 21:00:58,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:57" (1/1) ... [2023-11-21 21:00:58,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:57" (1/1) ... [2023-11-21 21:00:58,041 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:57" (1/1) ... [2023-11-21 21:00:58,046 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:57" (1/1) ... [2023-11-21 21:00:58,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:57" (1/1) ... [2023-11-21 21:00:58,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:00:58,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:00:58,057 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:00:58,057 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:00:58,058 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:57" (1/1) ... [2023-11-21 21:00:58,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:58,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:58,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:58,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:00:58,139 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 21:00:58,140 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 21:00:58,140 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 21:00:58,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:00:58,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 21:00:58,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-21 21:00:58,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-21 21:00:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-21 21:00:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-21 21:00:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:00:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:00:58,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:00:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-21 21:00:58,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-21 21:00:58,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-21 21:00:58,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-21 21:00:58,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-21 21:00:58,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:00:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-21 21:00:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-21 21:00:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-21 21:00:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-21 21:00:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-21 21:00:58,144 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 21:00:58,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2023-11-21 21:00:58,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2023-11-21 21:00:58,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2023-11-21 21:00:58,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2023-11-21 21:00:58,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#4 [2023-11-21 21:00:58,349 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:00:58,352 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:00:58,639 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:00:58,714 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:00:58,715 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 21:00:58,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:58 BoogieIcfgContainer [2023-11-21 21:00:58,717 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:00:58,719 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:00:58,719 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:00:58,722 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:00:58,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:00:56" (1/3) ... [2023-11-21 21:00:58,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51990d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:58, skipping insertion in model container [2023-11-21 21:00:58,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:57" (2/3) ... [2023-11-21 21:00:58,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51990d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:58, skipping insertion in model container [2023-11-21 21:00:58,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:58" (3/3) ... [2023-11-21 21:00:58,727 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_67_bad.i [2023-11-21 21:00:58,746 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:00:58,746 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-21 21:00:58,803 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:00:58,810 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;@1b98eea9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:00:58,811 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-21 21:00:58,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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) [2023-11-21 21:00:58,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 21:00:58,836 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:58,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:58,838 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 21:00:58,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:58,847 INFO L85 PathProgramCache]: Analyzing trace with hash 918150768, now seen corresponding path program 1 times [2023-11-21 21:00:58,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 21:00:58,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695548208] [2023-11-21 21:00:58,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:58,870 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 [2023-11-21 21:00:58,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 21:00:58,876 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 21:00:58,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:00:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:59,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 21:00:59,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:59,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:59,127 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 21:00:59,128 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 21:00:59,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695548208] [2023-11-21 21:00:59,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [695548208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:59,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:59,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 21:00:59,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725274618] [2023-11-21 21:00:59,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:59,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 21:00:59,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 21:00:59,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 21:00:59,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 21:00:59,168 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-21 21:00:59,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:59,197 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2023-11-21 21:00:59,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 21:00:59,199 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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 8 [2023-11-21 21:00:59,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:00:59,206 INFO L225 Difference]: With dead ends: 15 [2023-11-21 21:00:59,206 INFO L226 Difference]: Without dead ends: 11 [2023-11-21 21:00:59,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 21:00:59,213 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 21:00:59,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 21:00:59,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-21 21:00:59,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-21 21:00:59,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 21:00:59,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2023-11-21 21:00:59,248 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2023-11-21 21:00:59,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:00:59,249 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-11-21 21:00:59,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-21 21:00:59,250 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-11-21 21:00:59,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 21:00:59,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:59,251 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:59,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/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)] Ended with exit code 0 [2023-11-21 21:00:59,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:00:59,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 21:00:59,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:59,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1602097210, now seen corresponding path program 1 times [2023-11-21 21:00:59,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 21:00:59,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294907347] [2023-11-21 21:00:59,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:59,457 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 [2023-11-21 21:00:59,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 21:00:59,458 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 21:00:59,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:00:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:59,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:59,835 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-21 21:00:59,838 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 21:00:59,842 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-21 21:00:59,844 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-21 21:00:59,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/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)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:00,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:01:00,049 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-21 21:01:00,053 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 21:01:00,079 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~myStruct!structFirst [2023-11-21 21:01:00,082 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~myStruct!structFirst has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-21 21:01:00,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:01:00 BoogieIcfgContainer [2023-11-21 21:01:00,097 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 21:01:00,098 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:01:00,098 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:01:00,098 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:01:00,099 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:58" (3/4) ... [2023-11-21 21:01:00,101 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 21:01:00,102 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:01:00,105 INFO L158 Benchmark]: Toolchain (without parser) took 3657.61ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 45.7MB in the beginning and 38.3MB in the end (delta: 7.4MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2023-11-21 21:01:00,111 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 73.4MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:01:00,112 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1463.87ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 45.7MB in the beginning and 44.5MB in the end (delta: 1.2MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2023-11-21 21:01:00,112 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.38ms. Allocated memory is still 96.5MB. Free memory was 44.5MB in the beginning and 41.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:01:00,113 INFO L158 Benchmark]: Boogie Preprocessor took 70.61ms. Allocated memory is still 96.5MB. Free memory was 41.3MB in the beginning and 67.0MB in the end (delta: -25.7MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2023-11-21 21:01:00,113 INFO L158 Benchmark]: RCFGBuilder took 660.29ms. Allocated memory is still 96.5MB. Free memory was 67.0MB in the beginning and 47.1MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 21:01:00,114 INFO L158 Benchmark]: TraceAbstraction took 1377.98ms. Allocated memory is still 96.5MB. Free memory was 46.5MB in the beginning and 38.3MB in the end (delta: 8.2MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2023-11-21 21:01:00,114 INFO L158 Benchmark]: Witness Printer took 4.81ms. Allocated memory is still 96.5MB. Free memory is still 38.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:01:00,117 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 73.4MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1463.87ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 45.7MB in the beginning and 44.5MB in the end (delta: 1.2MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.38ms. Allocated memory is still 96.5MB. Free memory was 44.5MB in the beginning and 41.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.61ms. Allocated memory is still 96.5MB. Free memory was 41.3MB in the beginning and 67.0MB in the end (delta: -25.7MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * RCFGBuilder took 660.29ms. Allocated memory is still 96.5MB. Free memory was 67.0MB in the beginning and 47.1MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1377.98ms. Allocated memory is still 96.5MB. Free memory was 46.5MB in the beginning and 38.3MB in the end (delta: 8.2MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 4.81ms. Allocated memory is still 96.5MB. Free memory is still 38.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~myStruct!structFirst - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~myStruct!structFirst has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - 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: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562. 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); [L1575] 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) [L1575] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={18:13}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL CWE190_Integer_Overflow__int_fgets_add_67_bad() [L1555] int data; [L1556] CWE190_Integer_Overflow__int_fgets_add_67_structType myStruct; [L1557] data = 0 [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1560] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] EXPR data = atoi(inputBuffer) [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558-L1568] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1569] myStruct.structFirst = data [L1570] CALL CWE190_Integer_Overflow__int_fgets_add_67b_badSink(myStruct) [L1581] EXPR myStruct.structFirst [L1581] int data = myStruct.structFirst; [L1583] data + 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myStruct={7:0}] - UnprovableResult [Line: 1583]: 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 1 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 [2023-11-21 21:01:00,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ca26db-6ea1-42cd-89bf-c675c18a5dea/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample