./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_17_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_17_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC --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 cf4a075a6c732c9d5671312c13d0b2dc4348f970607068cc69b1faf8eb643f8e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:20:42,205 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:20:42,316 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-24 00:20:42,330 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:20:42,330 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:20:42,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:20:42,380 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:20:42,381 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:20:42,382 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:20:42,382 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:20:42,383 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:20:42,383 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:20:42,384 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:20:42,384 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:20:42,384 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:20:42,384 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:20:42,384 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:20:42,384 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:20:42,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:20:42,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:20:42,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:20:42,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:20:42,385 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 00:20:42,385 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:20:42,385 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:20:42,386 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:20:42,387 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:20:42,387 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:20:42,387 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:20:42,387 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:20:42,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:20:42,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:20:42,388 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:20:42,388 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:20:42,389 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:20:42,389 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:20:42,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:20:42,389 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:20:42,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:20:42,389 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:20:42,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:20:42,390 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:20:42,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:20:42,390 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:20:42,391 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:20:42,391 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:20:42,391 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:20:42,391 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC 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 -> cf4a075a6c732c9d5671312c13d0b2dc4348f970607068cc69b1faf8eb643f8e [2024-11-24 00:20:42,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:20:42,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:20:42,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:20:42,832 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:20:42,834 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:20:42,836 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_17_bad.i [2024-11-24 00:20:46,078 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/data/acf3735a7/f6e7d34abbf4436ea109c167f28e5bf5/FLAGd52ded1ad [2024-11-24 00:20:46,745 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:20:46,746 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_17_bad.i [2024-11-24 00:20:46,784 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/data/acf3735a7/f6e7d34abbf4436ea109c167f28e5bf5/FLAGd52ded1ad [2024-11-24 00:20:46,805 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/data/acf3735a7/f6e7d34abbf4436ea109c167f28e5bf5 [2024-11-24 00:20:46,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:20:46,812 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:20:46,814 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:20:46,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:20:46,822 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:20:46,823 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:20:46" (1/1) ... [2024-11-24 00:20:46,826 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e5dbeff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:46, skipping insertion in model container [2024-11-24 00:20:46,827 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:20:46" (1/1) ... [2024-11-24 00:20:46,910 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:20:48,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:20:48,904 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:20:49,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:20:49,296 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:20:49,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:49 WrapperNode [2024-11-24 00:20:49,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:20:49,299 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:20:49,299 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:20:49,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:20:49,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:49" (1/1) ... [2024-11-24 00:20:49,332 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:49" (1/1) ... [2024-11-24 00:20:49,360 INFO L138 Inliner]: procedures = 936, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 78 [2024-11-24 00:20:49,360 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:20:49,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:20:49,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:20:49,361 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:20:49,371 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:49" (1/1) ... [2024-11-24 00:20:49,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:49" (1/1) ... [2024-11-24 00:20:49,374 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:49" (1/1) ... [2024-11-24 00:20:49,392 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-11-24 00:20:49,393 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:49" (1/1) ... [2024-11-24 00:20:49,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:49" (1/1) ... [2024-11-24 00:20:49,402 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:49" (1/1) ... [2024-11-24 00:20:49,403 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:49" (1/1) ... [2024-11-24 00:20:49,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:49" (1/1) ... [2024-11-24 00:20:49,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:49" (1/1) ... [2024-11-24 00:20:49,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:49" (1/1) ... [2024-11-24 00:20:49,422 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:20:49,427 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:20:49,427 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:20:49,427 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:20:49,428 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:49" (1/1) ... [2024-11-24 00:20:49,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:20:49,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:20:49,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:20:49,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:20:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:20:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:20:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:20:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-24 00:20:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-24 00:20:49,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:20:49,732 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:20:49,735 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:20:49,929 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-24 00:20:49,929 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:20:49,943 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:20:49,944 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:20:49,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:20:49 BoogieIcfgContainer [2024-11-24 00:20:49,944 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:20:49,948 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:20:49,948 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:20:49,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:20:49,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:20:46" (1/3) ... [2024-11-24 00:20:49,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9e2a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:20:49, skipping insertion in model container [2024-11-24 00:20:49,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:49" (2/3) ... [2024-11-24 00:20:49,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9e2a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:20:49, skipping insertion in model container [2024-11-24 00:20:49,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:20:49" (3/3) ... [2024-11-24 00:20:49,961 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_17_bad.i [2024-11-24 00:20:49,982 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:20:49,985 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_square_17_bad.i that has 2 procedures, 34 locations, 1 initial locations, 2 loop locations, and 6 error locations. [2024-11-24 00:20:50,069 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:20:50,086 INFO L333 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, 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;@7252b177, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:20:50,087 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-24 00:20:50,093 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 30 states have internal predecessors, (35), 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) [2024-11-24 00:20:50,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-24 00:20:50,101 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:20:50,102 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:20:50,103 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-24 00:20:50,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:20:50,110 INFO L85 PathProgramCache]: Analyzing trace with hash 182664546, now seen corresponding path program 1 times [2024-11-24 00:20:50,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:20:50,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489125656] [2024-11-24 00:20:50,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:20:50,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:20:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:20:50,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:20:50,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:20:50,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489125656] [2024-11-24 00:20:50,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489125656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:20:50,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:20:50,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-24 00:20:50,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348637615] [2024-11-24 00:20:50,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:20:50,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:20:50,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:20:50,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:20:50,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:20:50,414 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 30 states have internal predecessors, (35), 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 10.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2024-11-24 00:20:50,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:20:50,435 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2024-11-24 00:20:50,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:20:50,437 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 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 12 [2024-11-24 00:20:50,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:20:50,443 INFO L225 Difference]: With dead ends: 54 [2024-11-24 00:20:50,443 INFO L226 Difference]: Without dead ends: 27 [2024-11-24 00:20:50,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:20:50,450 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:20:50,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:20:50,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-24 00:20:50,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-24 00:20:50,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 24 states have internal predecessors, (27), 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) [2024-11-24 00:20:50,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2024-11-24 00:20:50,494 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 12 [2024-11-24 00:20:50,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:20:50,497 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2024-11-24 00:20:50,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2024-11-24 00:20:50,498 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2024-11-24 00:20:50,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-24 00:20:50,500 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:20:50,500 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:20:50,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:20:50,500 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-24 00:20:50,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:20:50,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1365291146, now seen corresponding path program 1 times [2024-11-24 00:20:50,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:20:50,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197245427] [2024-11-24 00:20:50,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:20:50,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:20:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:20:50,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:20:50,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:20:50,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197245427] [2024-11-24 00:20:50,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197245427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:20:50,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:20:50,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:20:50,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435977464] [2024-11-24 00:20:50,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:20:50,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:20:50,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:20:50,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:20:50,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:20:50,844 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-24 00:20:50,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:20:50,903 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2024-11-24 00:20:50,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:20:50,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 13 [2024-11-24 00:20:50,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:20:50,907 INFO L225 Difference]: With dead ends: 46 [2024-11-24 00:20:50,907 INFO L226 Difference]: Without dead ends: 34 [2024-11-24 00:20:50,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:20:50,908 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:20:50,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 78 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:20:50,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-24 00:20:50,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-24 00:20:50,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.36) internal successors, (34), 31 states have internal predecessors, (34), 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) [2024-11-24 00:20:50,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2024-11-24 00:20:50,920 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 13 [2024-11-24 00:20:50,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:20:50,923 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2024-11-24 00:20:50,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-24 00:20:50,923 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2024-11-24 00:20:50,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-24 00:20:50,925 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:20:50,925 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:20:50,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:20:50,926 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-24 00:20:50,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:20:50,932 INFO L85 PathProgramCache]: Analyzing trace with hash 103524927, now seen corresponding path program 1 times [2024-11-24 00:20:50,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:20:50,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032997188] [2024-11-24 00:20:50,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:20:50,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:20:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:20:51,225 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:20:51,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:20:51,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032997188] [2024-11-24 00:20:51,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032997188] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:20:51,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024481519] [2024-11-24 00:20:51,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:20:51,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:20:51,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:20:51,228 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:20:51,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:20:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:20:51,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:20:51,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:20:51,482 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:20:51,482 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:20:51,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024481519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:20:51,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:20:51,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-24 00:20:51,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239291254] [2024-11-24 00:20:51,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:20:51,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:20:51,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:20:51,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:20:51,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:20:51,489 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2024-11-24 00:20:51,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:20:51,545 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2024-11-24 00:20:51,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:20:51,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 19 [2024-11-24 00:20:51,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:20:51,548 INFO L225 Difference]: With dead ends: 49 [2024-11-24 00:20:51,548 INFO L226 Difference]: Without dead ends: 26 [2024-11-24 00:20:51,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:20:51,549 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:20:51,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 69 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:20:51,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-24 00:20:51,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-24 00:20:51,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.25) internal successors, (25), 23 states have internal predecessors, (25), 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) [2024-11-24 00:20:51,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2024-11-24 00:20:51,559 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 19 [2024-11-24 00:20:51,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:20:51,559 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2024-11-24 00:20:51,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2024-11-24 00:20:51,559 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2024-11-24 00:20:51,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-24 00:20:51,560 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:20:51,560 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:20:51,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 00:20:51,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:20:51,766 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-24 00:20:51,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:20:51,767 INFO L85 PathProgramCache]: Analyzing trace with hash 105867492, now seen corresponding path program 1 times [2024-11-24 00:20:51,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:20:51,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269109008] [2024-11-24 00:20:51,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:20:51,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:20:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:20:51,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [710508671] [2024-11-24 00:20:51,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:20:51,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:20:51,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:20:51,823 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:20:51,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:20:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:20:51,967 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:20:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:20:52,035 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:20:52,035 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:20:52,037 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-24 00:20:52,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-24 00:20:52,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-24 00:20:52,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-24 00:20:52,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-24 00:20:52,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-24 00:20:52,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:20:52,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:20:52,243 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:20:52,271 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:20:52,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:20:52 BoogieIcfgContainer [2024-11-24 00:20:52,275 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:20:52,276 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:20:52,276 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:20:52,277 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:20:52,277 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:20:49" (3/4) ... [2024-11-24 00:20:52,281 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:20:52,282 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:20:52,283 INFO L158 Benchmark]: Toolchain (without parser) took 5471.44ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 114.1MB in the beginning and 327.8MB in the end (delta: -213.7MB). Peak memory consumption was 73.3MB. Max. memory is 16.1GB. [2024-11-24 00:20:52,283 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:20:52,284 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2484.29ms. Allocated memory is still 142.6MB. Free memory was 113.8MB in the beginning and 90.7MB in the end (delta: 23.2MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. [2024-11-24 00:20:52,284 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.92ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 86.6MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:20:52,285 INFO L158 Benchmark]: Boogie Preprocessor took 65.28ms. Allocated memory is still 142.6MB. Free memory was 86.6MB in the beginning and 85.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:20:52,285 INFO L158 Benchmark]: RCFGBuilder took 517.85ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 71.5MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:20:52,286 INFO L158 Benchmark]: TraceAbstraction took 2327.31ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 71.5MB in the beginning and 327.9MB in the end (delta: -256.4MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2024-11-24 00:20:52,286 INFO L158 Benchmark]: Witness Printer took 5.73ms. Allocated memory is still 427.8MB. Free memory was 327.9MB in the beginning and 327.8MB in the end (delta: 13.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:20:52,288 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2484.29ms. Allocated memory is still 142.6MB. Free memory was 113.8MB in the beginning and 90.7MB in the end (delta: 23.2MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.92ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 86.6MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 65.28ms. Allocated memory is still 142.6MB. Free memory was 86.6MB in the beginning and 85.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 517.85ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 71.5MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2327.31ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 71.5MB in the beginning and 327.9MB in the end (delta: -256.4MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. * Witness Printer took 5.73ms. Allocated memory is still 427.8MB. Free memory was 327.9MB in the beginning and 327.8MB in the end (delta: 13.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1854]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1843, overapproximation of fgets at line 1841. 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1862] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1862] RET 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] [L1863] CALL CWE190_Integer_Overflow__int_fgets_square_17_bad() [L1834] int i,j; [L1835] int data; [L1836] data = 0 [L1837] i = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1837] COND TRUE i < 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1840] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1841] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1843] data = atoi(inputBuffer) [L1837] i++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-46341, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1] [L1837] COND FALSE !(i < 1) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-46341, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1851] j = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-46341, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] [L1851] COND TRUE j < 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-46341, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] [L1854] data * data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] - UnprovableResult [Line: 1837]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1837]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1854]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1851]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1851]: 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, 34 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 185 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 95 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 90 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 97 SizeOfPredicates, 0 NumberOfNonLiveVariables, 147 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 9/10 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 00:20:52,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_17_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC --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 cf4a075a6c732c9d5671312c13d0b2dc4348f970607068cc69b1faf8eb643f8e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:20:55,480 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:20:55,578 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-24 00:20:55,585 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:20:55,589 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:20:55,589 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-24 00:20:55,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:20:55,676 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:20:55,677 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:20:55,677 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:20:55,677 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:20:55,677 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:20:55,677 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:20:55,678 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:20:55,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:20:55,678 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:20:55,678 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:20:55,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:20:55,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:20:55,679 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:20:55,679 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:20:55,686 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:20:55,686 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:20:55,686 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:20:55,686 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 00:20:55,687 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:20:55,687 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:20:55,687 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:20:55,687 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:20:55,687 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:20:55,688 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:20:55,688 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:20:55,688 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:20:55,689 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:20:55,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:20:55,689 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:20:55,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:20:55,690 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:20:55,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:20:55,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:20:55,690 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:20:55,691 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:20:55,692 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:20:55,692 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:20:55,692 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:20:55,693 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:20:55,693 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:20:55,693 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:20:55,693 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:20:55,693 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:20:55,694 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC 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 -> cf4a075a6c732c9d5671312c13d0b2dc4348f970607068cc69b1faf8eb643f8e [2024-11-24 00:20:56,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:20:56,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:20:56,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:20:56,080 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:20:56,081 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:20:56,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_17_bad.i [2024-11-24 00:20:59,297 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/data/1c3af3099/2aa838a0c6bb40778dab0ec83d5e758e/FLAGa979da628 [2024-11-24 00:20:59,820 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:20:59,820 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_17_bad.i [2024-11-24 00:20:59,864 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/data/1c3af3099/2aa838a0c6bb40778dab0ec83d5e758e/FLAGa979da628 [2024-11-24 00:20:59,890 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/data/1c3af3099/2aa838a0c6bb40778dab0ec83d5e758e [2024-11-24 00:20:59,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:20:59,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:20:59,898 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:20:59,899 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:20:59,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:20:59,904 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:20:59" (1/1) ... [2024-11-24 00:20:59,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fbcbccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:59, skipping insertion in model container [2024-11-24 00:20:59,905 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:20:59" (1/1) ... [2024-11-24 00:20:59,989 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:21:01,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:21:02,009 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:21:02,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:21:02,424 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:21:02,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:21:02 WrapperNode [2024-11-24 00:21:02,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:21:02,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:21:02,427 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:21:02,427 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:21:02,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:21:02" (1/1) ... [2024-11-24 00:21:02,486 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:21:02" (1/1) ... [2024-11-24 00:21:02,526 INFO L138 Inliner]: procedures = 941, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2024-11-24 00:21:02,526 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:21:02,527 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:21:02,527 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:21:02,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:21:02,535 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:21:02" (1/1) ... [2024-11-24 00:21:02,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:21:02" (1/1) ... [2024-11-24 00:21:02,539 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:21:02" (1/1) ... [2024-11-24 00:21:02,553 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-11-24 00:21:02,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:21:02" (1/1) ... [2024-11-24 00:21:02,554 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:21:02" (1/1) ... [2024-11-24 00:21:02,574 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:21:02" (1/1) ... [2024-11-24 00:21:02,575 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:21:02" (1/1) ... [2024-11-24 00:21:02,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:21:02" (1/1) ... [2024-11-24 00:21:02,581 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:21:02" (1/1) ... [2024-11-24 00:21:02,582 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:21:02" (1/1) ... [2024-11-24 00:21:02,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:21:02,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:21:02,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:21:02,587 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:21:02,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:21:02" (1/1) ... [2024-11-24 00:21:02,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:21:02,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:02,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:21:02,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:21:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:21:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:21:02,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:21:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-24 00:21:02,664 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-24 00:21:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:21:02,855 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:21:02,858 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:21:04,460 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-24 00:21:04,461 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:21:04,479 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:21:04,480 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:21:04,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:21:04 BoogieIcfgContainer [2024-11-24 00:21:04,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:21:04,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:21:04,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:21:04,496 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:21:04,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:20:59" (1/3) ... [2024-11-24 00:21:04,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732c455d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:21:04, skipping insertion in model container [2024-11-24 00:21:04,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:21:02" (2/3) ... [2024-11-24 00:21:04,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732c455d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:21:04, skipping insertion in model container [2024-11-24 00:21:04,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:21:04" (3/3) ... [2024-11-24 00:21:04,501 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_17_bad.i [2024-11-24 00:21:04,517 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:21:04,518 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_square_17_bad.i that has 2 procedures, 34 locations, 1 initial locations, 2 loop locations, and 6 error locations. [2024-11-24 00:21:04,581 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:21:04,598 INFO L333 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, 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;@416ebfaf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:21:04,598 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-24 00:21:04,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 30 states have internal predecessors, (35), 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) [2024-11-24 00:21:04,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-24 00:21:04,614 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:04,616 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:04,617 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-24 00:21:04,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:04,625 INFO L85 PathProgramCache]: Analyzing trace with hash 182664546, now seen corresponding path program 1 times [2024-11-24 00:21:04,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:21:04,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1421593133] [2024-11-24 00:21:04,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:04,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:04,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:04,643 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:04,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:21:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:04,853 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 00:21:04,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:04,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:21:04,926 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:21:04,927 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:21:04,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421593133] [2024-11-24 00:21:04,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421593133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:04,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:04,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:21:04,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563865667] [2024-11-24 00:21:04,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:04,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:21:04,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:21:04,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:21:04,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:21:04,968 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 30 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-24 00:21:05,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:05,021 INFO L93 Difference]: Finished difference Result 59 states and 73 transitions. [2024-11-24 00:21:05,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:21:05,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2024-11-24 00:21:05,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:05,032 INFO L225 Difference]: With dead ends: 59 [2024-11-24 00:21:05,033 INFO L226 Difference]: Without dead ends: 31 [2024-11-24 00:21:05,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:21:05,044 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 4 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:05,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 67 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:21:05,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-24 00:21:05,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2024-11-24 00:21:05,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.35) internal successors, (27), 24 states have internal predecessors, (27), 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) [2024-11-24 00:21:05,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2024-11-24 00:21:05,099 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 12 [2024-11-24 00:21:05,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:05,100 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2024-11-24 00:21:05,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-24 00:21:05,101 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2024-11-24 00:21:05,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-24 00:21:05,104 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:05,104 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:05,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:21:05,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:05,305 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-24 00:21:05,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:05,307 INFO L85 PathProgramCache]: Analyzing trace with hash -625647370, now seen corresponding path program 1 times [2024-11-24 00:21:05,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:21:05,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1731787383] [2024-11-24 00:21:05,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:05,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:05,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:05,310 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:05,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:21:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:05,436 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:21:05,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:05,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:21:05,518 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:21:05,518 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:21:05,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731787383] [2024-11-24 00:21:05,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731787383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:05,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:05,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:21:05,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400431668] [2024-11-24 00:21:05,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:05,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:21:05,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:21:05,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:21:05,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:21:05,524 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-24 00:21:05,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:05,582 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2024-11-24 00:21:05,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:21:05,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 14 [2024-11-24 00:21:05,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:05,586 INFO L225 Difference]: With dead ends: 34 [2024-11-24 00:21:05,586 INFO L226 Difference]: Without dead ends: 33 [2024-11-24 00:21:05,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:21:05,587 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 1 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:05,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 74 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:21:05,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-24 00:21:05,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-24 00:21:05,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 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) [2024-11-24 00:21:05,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2024-11-24 00:21:05,600 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 14 [2024-11-24 00:21:05,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:05,601 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2024-11-24 00:21:05,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-24 00:21:05,602 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2024-11-24 00:21:05,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-24 00:21:05,603 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:05,603 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:05,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:21:05,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:05,808 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-24 00:21:05,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:05,809 INFO L85 PathProgramCache]: Analyzing trace with hash -827868915, now seen corresponding path program 1 times [2024-11-24 00:21:05,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:21:05,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [531105684] [2024-11-24 00:21:05,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:05,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:05,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:05,816 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:05,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:21:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:21:06,998 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:21:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:21:07,964 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-24 00:21:07,964 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:21:07,965 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-24 00:21:07,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-24 00:21:07,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-24 00:21:07,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-24 00:21:07,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-24 00:21:07,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-24 00:21:07,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 00:21:08,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:08,174 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-24 00:21:08,221 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:21:08,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:21:08 BoogieIcfgContainer [2024-11-24 00:21:08,227 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:21:08,228 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:21:08,229 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:21:08,229 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:21:08,230 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:21:04" (3/4) ... [2024-11-24 00:21:08,235 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:21:08,237 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:21:08,238 INFO L158 Benchmark]: Toolchain (without parser) took 8342.54ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 87.9MB in the beginning and 182.6MB in the end (delta: -94.7MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. [2024-11-24 00:21:08,239 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 117.4MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:21:08,241 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2527.72ms. Allocated memory is still 117.4MB. Free memory was 87.7MB in the beginning and 43.0MB in the end (delta: 44.7MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. [2024-11-24 00:21:08,241 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.01ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 43.0MB in the beginning and 248.3MB in the end (delta: -205.4MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2024-11-24 00:21:08,242 INFO L158 Benchmark]: Boogie Preprocessor took 58.69ms. Allocated memory is still 285.2MB. Free memory was 248.3MB in the beginning and 245.7MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:21:08,243 INFO L158 Benchmark]: RCFGBuilder took 1896.09ms. Allocated memory is still 285.2MB. Free memory was 245.7MB in the beginning and 229.6MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:21:08,244 INFO L158 Benchmark]: TraceAbstraction took 3742.07ms. Allocated memory is still 285.2MB. Free memory was 229.0MB in the beginning and 183.1MB in the end (delta: 45.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-24 00:21:08,244 INFO L158 Benchmark]: Witness Printer took 8.70ms. Allocated memory is still 285.2MB. Free memory was 183.1MB in the beginning and 182.6MB in the end (delta: 553.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:21:08,248 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 117.4MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2527.72ms. Allocated memory is still 117.4MB. Free memory was 87.7MB in the beginning and 43.0MB in the end (delta: 44.7MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.01ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 43.0MB in the beginning and 248.3MB in the end (delta: -205.4MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.69ms. Allocated memory is still 285.2MB. Free memory was 248.3MB in the beginning and 245.7MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1896.09ms. Allocated memory is still 285.2MB. Free memory was 245.7MB in the beginning and 229.6MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3742.07ms. Allocated memory is still 285.2MB. Free memory was 229.0MB in the beginning and 183.1MB in the end (delta: 45.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 8.70ms. Allocated memory is still 285.2MB. Free memory was 183.1MB in the beginning and 182.6MB in the end (delta: 553.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1854]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1843, overapproximation of fgets at line 1841. 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1862] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1862] RET 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] [L1863] CALL CWE190_Integer_Overflow__int_fgets_square_17_bad() [L1834] int i,j; [L1835] int data; [L1836] data = 0 [L1837] i = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1837] COND TRUE i < 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1840] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1841] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1843] data = atoi(inputBuffer) [L1837] i++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1] [L1837] COND FALSE !(i < 1) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1851] j = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] [L1851] COND TRUE j < 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] [L1854] data * data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] - UnprovableResult [Line: 1837]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1837]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1854]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1851]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1851]: 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, 34 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 141 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 62 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 SizeOfPredicates, 0 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 00:21:08,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f65af2-eca8-4de3-b9d5-3bf553b965c2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample