./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_44_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme --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 1662a0a1bb5781a96ebe0a43800bee02f7d32295c8f6c443a6b6c5351ed37f0d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:40:52,719 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:40:52,797 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-26 10:40:52,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:40:52,804 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:40:52,832 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:40:52,833 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:40:52,834 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:40:52,835 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:40:52,835 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:40:52,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:40:52,837 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:40:52,838 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:40:52,838 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:40:52,839 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:40:52,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:40:52,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:40:52,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:40:52,841 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:40:52,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:40:52,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:40:52,843 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:40:52,843 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 10:40:52,844 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:40:52,844 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:40:52,845 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:40:52,846 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:40:52,847 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:40:52,847 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:40:52,848 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:40:52,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:40:52,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:40:52,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:40:52,850 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:40:52,851 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:40:52,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:40:52,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:40:52,852 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:40:52,852 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:40:52,852 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:40:52,852 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:40:52,853 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_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1662a0a1bb5781a96ebe0a43800bee02f7d32295c8f6c443a6b6c5351ed37f0d [2023-11-26 10:40:53,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:40:53,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:40:53,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:40:53,257 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:40:53,257 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:40:53,258 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_44_bad.i [2023-11-26 10:40:56,465 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:40:56,891 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:40:56,892 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_44_bad.i [2023-11-26 10:40:56,926 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/data/a57a0db59/531939eee4e9483ca2b639234f1ca3db/FLAG9763457fb [2023-11-26 10:40:56,939 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/data/a57a0db59/531939eee4e9483ca2b639234f1ca3db [2023-11-26 10:40:56,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:40:56,943 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:40:56,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:40:56,946 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:40:56,952 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:40:56,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:40:56" (1/1) ... [2023-11-26 10:40:56,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c073416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:56, skipping insertion in model container [2023-11-26 10:40:56,954 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:40:56" (1/1) ... [2023-11-26 10:40:57,040 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:40:58,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:40:58,108 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:40:58,196 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:40:58,333 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:40:58,333 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:40:58,333 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:40:58,334 WARN L675 CHandler]: The function funcPtr is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:40:58,334 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:40:58,334 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:40:58,342 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:40:58,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:58 WrapperNode [2023-11-26 10:40:58,343 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:40:58,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:40:58,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:40:58,344 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:40:58,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:58" (1/1) ... [2023-11-26 10:40:58,390 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:58" (1/1) ... [2023-11-26 10:40:58,424 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 66 [2023-11-26 10:40:58,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:40:58,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:40:58,426 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:40:58,426 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:40:58,437 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:58" (1/1) ... [2023-11-26 10:40:58,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:58" (1/1) ... [2023-11-26 10:40:58,441 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:58" (1/1) ... [2023-11-26 10:40:58,457 INFO L175 MemorySlicer]: Split 4 memory accesses to 3 slices as follows [1, 1, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 1, 0]. The 2 writes are split as follows [0, 0, 2]. [2023-11-26 10:40:58,457 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:58" (1/1) ... [2023-11-26 10:40:58,458 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:58" (1/1) ... [2023-11-26 10:40:58,466 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:58" (1/1) ... [2023-11-26 10:40:58,468 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:58" (1/1) ... [2023-11-26 10:40:58,470 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:58" (1/1) ... [2023-11-26 10:40:58,472 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:58" (1/1) ... [2023-11-26 10:40:58,476 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:40:58,477 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:40:58,477 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:40:58,477 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:40:58,478 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:58" (1/1) ... [2023-11-26 10:40:58,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:40:58,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:40:58,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:40:58,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:40:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-26 10:40:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-26 10:40:58,574 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-26 10:40:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:40:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-26 10:40:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-26 10:40:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-26 10:40:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:40:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:40:58,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:40:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:40:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-26 10:40:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:40:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 10:40:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 10:40:58,766 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:40:58,768 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:40:58,948 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:40:59,020 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:40:59,028 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 10:40:59,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:40:59 BoogieIcfgContainer [2023-11-26 10:40:59,029 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:40:59,038 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:40:59,041 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:40:59,044 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:40:59,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:40:56" (1/3) ... [2023-11-26 10:40:59,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3973bba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:40:59, skipping insertion in model container [2023-11-26 10:40:59,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:58" (2/3) ... [2023-11-26 10:40:59,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3973bba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:40:59, skipping insertion in model container [2023-11-26 10:40:59,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:40:59" (3/3) ... [2023-11-26 10:40:59,050 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_44_bad.i [2023-11-26 10:40:59,068 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:40:59,068 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 10:40:59,116 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:40:59,122 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;@667a4f39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:40:59,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 10:40:59,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 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) [2023-11-26 10:40:59,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 10:40:59,133 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:40:59,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:40:59,135 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 10:40:59,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:40:59,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1117656798, now seen corresponding path program 1 times [2023-11-26 10:40:59,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:40:59,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620512034] [2023-11-26 10:40:59,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:40:59,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:40:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:40:59,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:40:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:40:59,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:40:59,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:40:59,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620512034] [2023-11-26 10:40:59,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620512034] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:40:59,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:40:59,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:40:59,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156792798] [2023-11-26 10:40:59,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:40:59,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:40:59,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:40:59,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:40:59,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:40:59,762 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 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 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-26 10:40:59,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:40:59,827 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2023-11-26 10:40:59,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:40:59,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 10 [2023-11-26 10:40:59,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:40:59,837 INFO L225 Difference]: With dead ends: 18 [2023-11-26 10:40:59,837 INFO L226 Difference]: Without dead ends: 14 [2023-11-26 10:40:59,840 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 [2023-11-26 10:40:59,843 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 7 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:40:59,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 37 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:40:59,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-26 10:40:59,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-26 10:40:59,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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) [2023-11-26 10:40:59,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-11-26 10:40:59,886 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2023-11-26 10:40:59,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:40:59,887 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-11-26 10:40:59,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-26 10:40:59,888 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-26 10:40:59,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-26 10:40:59,889 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:40:59,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:40:59,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:40:59,890 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 10:40:59,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:40:59,891 INFO L85 PathProgramCache]: Analyzing trace with hash -287622315, now seen corresponding path program 1 times [2023-11-26 10:40:59,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:40:59,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855697816] [2023-11-26 10:40:59,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:40:59,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:40:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:40:59,925 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:40:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:40:59,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:40:59,968 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:40:59,970 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-26 10:40:59,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-26 10:40:59,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:40:59,977 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 10:40:59,981 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:41:00,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet104 [2023-11-26 10:41:00,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post98 could not be translated [2023-11-26 10:41:00,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:41:00 BoogieIcfgContainer [2023-11-26 10:41:00,017 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:41:00,017 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:41:00,018 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:41:00,018 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:41:00,018 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:40:59" (3/4) ... [2023-11-26 10:41:00,020 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:41:00,022 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:41:00,023 INFO L158 Benchmark]: Toolchain (without parser) took 3079.19ms. Allocated memory was 113.2MB in the beginning and 180.4MB in the end (delta: 67.1MB). Free memory was 64.8MB in the beginning and 98.5MB in the end (delta: -33.7MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2023-11-26 10:41:00,023 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 113.2MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:41:00,024 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1397.86ms. Allocated memory was 113.2MB in the beginning and 180.4MB in the end (delta: 67.1MB). Free memory was 64.5MB in the beginning and 100.6MB in the end (delta: -36.1MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2023-11-26 10:41:00,024 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.69ms. Allocated memory is still 180.4MB. Free memory was 100.6MB in the beginning and 97.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:41:00,025 INFO L158 Benchmark]: Boogie Preprocessor took 50.41ms. Allocated memory is still 180.4MB. Free memory was 97.4MB in the beginning and 95.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:41:00,025 INFO L158 Benchmark]: RCFGBuilder took 552.99ms. Allocated memory is still 180.4MB. Free memory was 95.3MB in the beginning and 141.4MB in the end (delta: -46.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 10:41:00,026 INFO L158 Benchmark]: TraceAbstraction took 978.62ms. Allocated memory is still 180.4MB. Free memory was 141.4MB in the beginning and 98.5MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-26 10:41:00,026 INFO L158 Benchmark]: Witness Printer took 4.36ms. Allocated memory is still 180.4MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:41:00,029 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 113.2MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1397.86ms. Allocated memory was 113.2MB in the beginning and 180.4MB in the end (delta: 67.1MB). Free memory was 64.5MB in the beginning and 100.6MB in the end (delta: -36.1MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.69ms. Allocated memory is still 180.4MB. Free memory was 100.6MB in the beginning and 97.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.41ms. Allocated memory is still 180.4MB. Free memory was 97.4MB in the beginning and 95.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 552.99ms. Allocated memory is still 180.4MB. Free memory was 95.3MB in the beginning and 141.4MB in the end (delta: -46.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 978.62ms. Allocated memory is still 180.4MB. Free memory was 141.4MB in the beginning and 98.5MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 4.36ms. Allocated memory is still 180.4MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet104 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post98 could not be translated - 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565, overapproximation of large string literal at line 1577. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1577] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1577] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=2147483649, argc=2147483649, argv={2147483653:2147483651}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL CWE190_Integer_Overflow__int_fgets_postinc_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1563] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] EXPR data = atoi(inputBuffer) [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1561-L1571] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1572] CALL funcPtr(data) [L1551] data++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=2147483647, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1551]: 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 14 mSDtfsCounter, 12 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=18occurred 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, 0.4s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 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 [2023-11-26 10:41:00,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme --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 1662a0a1bb5781a96ebe0a43800bee02f7d32295c8f6c443a6b6c5351ed37f0d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:41:02,627 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:41:02,713 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-26 10:41:02,719 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:41:02,720 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:41:02,720 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-26 10:41:02,754 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:41:02,755 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:41:02,756 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:41:02,757 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:41:02,757 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:41:02,758 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:41:02,758 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:41:02,759 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:41:02,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:41:02,760 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:41:02,761 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:41:02,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:41:02,762 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:41:02,763 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:41:02,763 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:41:02,764 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:41:02,765 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 10:41:02,765 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 10:41:02,766 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 10:41:02,766 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 10:41:02,767 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:41:02,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:41:02,767 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:41:02,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:41:02,768 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:41:02,769 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:41:02,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:41:02,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:02,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:41:02,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:41:02,771 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:41:02,771 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 10:41:02,771 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 10:41:02,771 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:41:02,772 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:41:02,772 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:41:02,772 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:41:02,772 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:41:02,773 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 10:41:02,773 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1662a0a1bb5781a96ebe0a43800bee02f7d32295c8f6c443a6b6c5351ed37f0d [2023-11-26 10:41:03,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:41:03,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:41:03,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:41:03,166 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:41:03,167 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:41:03,169 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_44_bad.i [2023-11-26 10:41:06,351 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:41:06,800 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:41:06,801 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_44_bad.i [2023-11-26 10:41:06,829 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/data/49b59ef13/e3dfae21ce3c45c8987771d43d91106a/FLAG3e70e1d55 [2023-11-26 10:41:06,849 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/data/49b59ef13/e3dfae21ce3c45c8987771d43d91106a [2023-11-26 10:41:06,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:41:06,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:41:06,862 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:06,862 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:41:06,867 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:41:06,868 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:06" (1/1) ... [2023-11-26 10:41:06,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5279e87e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:06, skipping insertion in model container [2023-11-26 10:41:06,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:06" (1/1) ... [2023-11-26 10:41:06,944 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:41:08,029 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:08,047 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:41:08,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:08,337 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:41:08,337 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:41:08,337 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:41:08,338 WARN L675 CHandler]: The function funcPtr is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:41:08,338 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:41:08,338 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:41:08,362 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:41:08,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:08 WrapperNode [2023-11-26 10:41:08,363 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:08,364 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:08,364 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:41:08,364 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:41:08,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:08" (1/1) ... [2023-11-26 10:41:08,412 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:08" (1/1) ... [2023-11-26 10:41:08,461 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 65 [2023-11-26 10:41:08,463 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:08,464 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:41:08,464 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:41:08,465 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:41:08,476 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:08" (1/1) ... [2023-11-26 10:41:08,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:08" (1/1) ... [2023-11-26 10:41:08,494 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:08" (1/1) ... [2023-11-26 10:41:08,517 INFO L175 MemorySlicer]: Split 4 memory accesses to 3 slices as follows [1, 1, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 1, 0]. The 2 writes are split as follows [0, 0, 2]. [2023-11-26 10:41:08,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:08" (1/1) ... [2023-11-26 10:41:08,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:08" (1/1) ... [2023-11-26 10:41:08,543 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:08" (1/1) ... [2023-11-26 10:41:08,557 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:08" (1/1) ... [2023-11-26 10:41:08,561 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:08" (1/1) ... [2023-11-26 10:41:08,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:08" (1/1) ... [2023-11-26 10:41:08,579 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:41:08,580 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:41:08,580 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:41:08,580 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:41:08,581 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:08" (1/1) ... [2023-11-26 10:41:08,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:08,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:08,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:41:08,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:41:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-26 10:41:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-26 10:41:08,649 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-26 10:41:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:41:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 10:41:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 10:41:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-26 10:41:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:41:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:41:08,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:41:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:41:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-26 10:41:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2023-11-26 10:41:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2023-11-26 10:41:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2023-11-26 10:41:08,841 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:41:08,844 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:41:08,987 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:41:09,049 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:41:09,049 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 10:41:09,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:09 BoogieIcfgContainer [2023-11-26 10:41:09,050 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:41:09,057 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:41:09,058 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:41:09,061 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:41:09,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:41:06" (1/3) ... [2023-11-26 10:41:09,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40adbdca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:41:09, skipping insertion in model container [2023-11-26 10:41:09,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:08" (2/3) ... [2023-11-26 10:41:09,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40adbdca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:41:09, skipping insertion in model container [2023-11-26 10:41:09,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:09" (3/3) ... [2023-11-26 10:41:09,070 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_44_bad.i [2023-11-26 10:41:09,085 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:41:09,086 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 10:41:09,156 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:41:09,166 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;@1a196761, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:41:09,167 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 10:41:09,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 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) [2023-11-26 10:41:09,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 10:41:09,179 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:09,185 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:09,185 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 10:41:09,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:09,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1314170303, now seen corresponding path program 1 times [2023-11-26 10:41:09,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:41:09,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488334300] [2023-11-26 10:41:09,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:09,206 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 [2023-11-26 10:41:09,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:41:09,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 10:41:09,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:41:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 10:41:09,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:09,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:09,416 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:09,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:41:09,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488334300] [2023-11-26 10:41:09,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488334300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:09,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:09,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:41:09,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496316991] [2023-11-26 10:41:09,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:09,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:41:09,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:41:09,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:41:09,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:41:09,463 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 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 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-26 10:41:09,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:09,492 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2023-11-26 10:41:09,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:41:09,496 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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 10 [2023-11-26 10:41:09,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:09,503 INFO L225 Difference]: With dead ends: 18 [2023-11-26 10:41:09,503 INFO L226 Difference]: Without dead ends: 14 [2023-11-26 10:41:09,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:41:09,511 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:09,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:09,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-26 10:41:09,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-26 10:41:09,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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) [2023-11-26 10:41:09,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-11-26 10:41:09,551 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2023-11-26 10:41:09,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:09,553 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-11-26 10:41:09,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-26 10:41:09,554 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-26 10:41:09,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-26 10:41:09,556 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:09,556 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:09,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:09,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:41:09,761 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 10:41:09,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:09,762 INFO L85 PathProgramCache]: Analyzing trace with hash -2084573674, now seen corresponding path program 1 times [2023-11-26 10:41:09,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:41:09,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1281694672] [2023-11-26 10:41:09,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:09,764 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 [2023-11-26 10:41:09,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:41:09,766 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 10:41:09,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:41:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:41:09,917 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:41:09,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:41:10,009 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-26 10:41:10,011 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:41:10,014 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-26 10:41:10,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-26 10:41:10,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:41:10,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:41:10,219 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 10:41:10,222 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:41:10,255 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-11-26 10:41:10,257 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post96 could not be translated [2023-11-26 10:41:10,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:41:10 BoogieIcfgContainer [2023-11-26 10:41:10,266 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:41:10,267 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:41:10,267 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:41:10,269 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:41:10,270 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:09" (3/4) ... [2023-11-26 10:41:10,273 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:41:10,274 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:41:10,276 INFO L158 Benchmark]: Toolchain (without parser) took 3414.57ms. Allocated memory was 73.4MB in the beginning and 119.5MB in the end (delta: 46.1MB). Free memory was 46.3MB in the beginning and 88.5MB in the end (delta: -42.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:41:10,277 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 73.4MB. Free memory is still 49.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:41:10,278 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1501.32ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 46.1MB in the beginning and 69.3MB in the end (delta: -23.2MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2023-11-26 10:41:10,278 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.96ms. Allocated memory is still 96.5MB. Free memory was 69.3MB in the beginning and 65.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:41:10,279 INFO L158 Benchmark]: Boogie Preprocessor took 115.01ms. Allocated memory is still 96.5MB. Free memory was 65.8MB in the beginning and 63.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:41:10,279 INFO L158 Benchmark]: RCFGBuilder took 471.36ms. Allocated memory is still 96.5MB. Free memory was 63.0MB in the beginning and 45.3MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 10:41:10,280 INFO L158 Benchmark]: TraceAbstraction took 1208.60ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 44.6MB in the beginning and 88.5MB in the end (delta: -43.9MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2023-11-26 10:41:10,280 INFO L158 Benchmark]: Witness Printer took 7.35ms. Allocated memory is still 119.5MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:41:10,283 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 73.4MB. Free memory is still 49.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1501.32ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 46.1MB in the beginning and 69.3MB in the end (delta: -23.2MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.96ms. Allocated memory is still 96.5MB. Free memory was 69.3MB in the beginning and 65.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 115.01ms. Allocated memory is still 96.5MB. Free memory was 65.8MB in the beginning and 63.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 471.36ms. Allocated memory is still 96.5MB. Free memory was 63.0MB in the beginning and 45.3MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1208.60ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 44.6MB in the beginning and 88.5MB in the end (delta: -43.9MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Witness Printer took 7.35ms. Allocated memory is still 119.5MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet102 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post96 could not be translated - 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565, overapproximation of large string literal at line 1577. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1577] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1577] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL CWE190_Integer_Overflow__int_fgets_postinc_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1563] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] EXPR data = atoi(inputBuffer) [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1561-L1571] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1572] CALL funcPtr(data) [L1551] data++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=2147483647, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1551]: 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, 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, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 73 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 [2023-11-26 10:41:10,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8dab80-7b06-4357-a882-58b42c26204e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample