./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! overflow) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', 'e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 22:57:17,184 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 22:57:17,280 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-07 22:57:17,287 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 22:57:17,288 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 22:57:17,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 22:57:17,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 22:57:17,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 22:57:17,314 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 22:57:17,314 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 22:57:17,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 22:57:17,315 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 22:57:17,315 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 22:57:17,315 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 22:57:17,315 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 22:57:17,315 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 22:57:17,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 22:57:17,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 22:57:17,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 22:57:17,316 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 22:57:17,316 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 22:57:17,316 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 22:57:17,316 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 22:57:17,316 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 22:57:17,316 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 22:57:17,317 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 22:57:17,317 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 22:57:17,317 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 22:57:17,317 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 22:57:17,317 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 22:57:17,317 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 22:57:17,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 22:57:17,317 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 22:57:17,318 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 22:57:17,318 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 22:57:17,318 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 22:57:17,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 22:57:17,318 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 22:57:17,318 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 22:57:17,319 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 22:57:17,319 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 22:57:17,319 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 [2024-11-07 22:57:17,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 22:57:17,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 22:57:17,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 22:57:17,590 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 22:57:17,590 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 22:57:17,591 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2024-11-07 22:57:18,907 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 22:57:19,249 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 22:57:19,252 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2024-11-07 22:57:19,282 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aa9ca5cb5/49fe669e7a2e409bbf0b170a85b2ec18/FLAG2925a00df [2024-11-07 22:57:19,303 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aa9ca5cb5/49fe669e7a2e409bbf0b170a85b2ec18 [2024-11-07 22:57:19,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 22:57:19,307 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 22:57:19,308 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 22:57:19,308 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 22:57:19,315 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 22:57:19,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:57:19" (1/1) ... [2024-11-07 22:57:19,319 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51de7c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:19, skipping insertion in model container [2024-11-07 22:57:19,320 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:57:19" (1/1) ... [2024-11-07 22:57:19,371 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 22:57:19,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 22:57:19,975 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 22:57:20,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 22:57:20,183 INFO L204 MainTranslator]: Completed translation [2024-11-07 22:57:20,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:20 WrapperNode [2024-11-07 22:57:20,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 22:57:20,184 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 22:57:20,184 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 22:57:20,184 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 22:57:20,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:20" (1/1) ... [2024-11-07 22:57:20,212 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:20" (1/1) ... [2024-11-07 22:57:20,233 INFO L138 Inliner]: procedures = 498, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 124 [2024-11-07 22:57:20,234 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 22:57:20,234 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 22:57:20,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 22:57:20,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 22:57:20,242 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:20" (1/1) ... [2024-11-07 22:57:20,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:20" (1/1) ... [2024-11-07 22:57:20,245 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:20" (1/1) ... [2024-11-07 22:57:20,260 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [4, 3, 4]. 36 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 1, 0]. The 4 writes are split as follows [1, 1, 2]. [2024-11-07 22:57:20,260 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:20" (1/1) ... [2024-11-07 22:57:20,260 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:20" (1/1) ... [2024-11-07 22:57:20,270 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:20" (1/1) ... [2024-11-07 22:57:20,272 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:20" (1/1) ... [2024-11-07 22:57:20,274 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:20" (1/1) ... [2024-11-07 22:57:20,275 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:20" (1/1) ... [2024-11-07 22:57:20,277 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 22:57:20,277 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 22:57:20,277 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 22:57:20,278 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 22:57:20,278 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:20" (1/1) ... [2024-11-07 22:57:20,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 22:57:20,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 22:57:20,315 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 22:57:20,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 22:57:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-07 22:57:20,341 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-07 22:57:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 22:57:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 22:57:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 22:57:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 22:57:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 22:57:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 22:57:20,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 22:57:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 22:57:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 22:57:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 22:57:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 22:57:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 22:57:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 22:57:20,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 22:57:20,463 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 22:57:20,464 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 22:57:20,691 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-11-07 22:57:20,692 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 22:57:20,701 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 22:57:20,701 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 22:57:20,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:57:20 BoogieIcfgContainer [2024-11-07 22:57:20,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 22:57:20,705 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 22:57:20,705 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 22:57:20,709 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 22:57:20,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:57:19" (1/3) ... [2024-11-07 22:57:20,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a937e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:57:20, skipping insertion in model container [2024-11-07 22:57:20,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:20" (2/3) ... [2024-11-07 22:57:20,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a937e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:57:20, skipping insertion in model container [2024-11-07 22:57:20,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:57:20" (3/3) ... [2024-11-07 22:57:20,712 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2024-11-07 22:57:20,726 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 22:57:20,726 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 22:57:20,775 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 22:57:20,788 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;@713a866f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 22:57:20,789 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 22:57:20,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 35 states have (on average 1.457142857142857) internal successors, (51), 37 states have internal predecessors, (51), 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) [2024-11-07 22:57:20,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-07 22:57:20,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 22:57:20,799 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 22:57:20,800 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 22:57:20,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 22:57:20,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1571693812, now seen corresponding path program 1 times [2024-11-07 22:57:20,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 22:57:20,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901877904] [2024-11-07 22:57:20,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 22:57:20,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 22:57:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 22:57:21,007 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 22:57:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 22:57:21,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 22:57:21,083 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 22:57:21,083 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-07 22:57:21,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-07 22:57:21,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 22:57:21,088 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-07 22:57:21,107 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 22:57:21,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 10:57:21 BoogieIcfgContainer [2024-11-07 22:57:21,110 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 22:57:21,111 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 22:57:21,111 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 22:57:21,111 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 22:57:21,112 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:57:20" (3/4) ... [2024-11-07 22:57:21,114 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-07 22:57:21,114 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 22:57:21,116 INFO L158 Benchmark]: Toolchain (without parser) took 1808.81ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 88.4MB in the beginning and 111.1MB in the end (delta: -22.7MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2024-11-07 22:57:21,116 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:57:21,116 INFO L158 Benchmark]: CACSL2BoogieTranslator took 875.94ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 72.5MB in the end (delta: 15.8MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. [2024-11-07 22:57:21,116 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.29ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 69.8MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 22:57:21,116 INFO L158 Benchmark]: Boogie Preprocessor took 42.76ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 67.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:57:21,117 INFO L158 Benchmark]: RCFGBuilder took 425.10ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 50.2MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 22:57:21,117 INFO L158 Benchmark]: TraceAbstraction took 405.59ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 49.8MB in the beginning and 111.8MB in the end (delta: -62.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:57:21,117 INFO L158 Benchmark]: Witness Printer took 3.63ms. Allocated memory is still 151.0MB. Free memory was 111.1MB in the beginning and 111.1MB in the end (delta: 22.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:57:21,119 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 875.94ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 72.5MB in the end (delta: 15.8MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.29ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 69.8MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.76ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 67.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 425.10ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 50.2MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 405.59ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 49.8MB in the beginning and 111.8MB in the end (delta: -62.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.63ms. Allocated memory is still 151.0MB. Free memory was 111.1MB in the beginning and 111.1MB in the end (delta: 22.5kB). 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: 1562]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1571. 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] [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] int data = *dataPtr1; [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={6:0}, dataPtr1={5:0}, dataPtr2={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={6:0}, dataPtr1={5:0}, dataPtr2={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={6:0}, dataPtr1={5:0}, dataPtr2={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] EXPR \read(data) [L1557] *dataPtr1 = data [L1555] int data = *dataPtr1; [L1560] int data = *dataPtr2; [L1560] EXPR \read(*dataPtr2) [L1560] int data = *dataPtr2; [L1562] EXPR \read(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] [L1562] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1562]: 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, 41 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-07 22:57:21,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 22:57:23,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 22:57:23,329 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-07 22:57:23,361 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 22:57:23,362 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 22:57:23,362 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-07 22:57:23,408 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 22:57:23,412 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 22:57:23,412 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 22:57:23,412 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 22:57:23,413 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 22:57:23,413 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 22:57:23,413 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 22:57:23,413 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 22:57:23,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 22:57:23,413 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 22:57:23,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 22:57:23,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 22:57:23,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 22:57:23,413 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 22:57:23,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 22:57:23,414 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 22:57:23,414 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 22:57:23,414 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-07 22:57:23,414 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 22:57:23,414 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 22:57:23,414 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-07 22:57:23,414 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 22:57:23,418 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 22:57:23,418 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 22:57:23,418 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 22:57:23,418 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 22:57:23,419 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 22:57:23,419 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 22:57:23,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 22:57:23,419 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 22:57:23,419 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 22:57:23,419 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 22:57:23,419 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-07 22:57:23,419 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-07 22:57:23,419 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 22:57:23,419 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 22:57:23,419 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 22:57:23,419 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 22:57:23,419 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 [2024-11-07 22:57:23,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 22:57:23,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 22:57:23,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 22:57:23,737 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 22:57:23,740 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 22:57:23,741 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2024-11-07 22:57:25,120 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 22:57:25,451 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 22:57:25,454 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2024-11-07 22:57:25,477 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1c726a80d/73ae405589624912a583cfe947748518/FLAG9a82eabe7 [2024-11-07 22:57:25,494 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1c726a80d/73ae405589624912a583cfe947748518 [2024-11-07 22:57:25,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 22:57:25,499 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 22:57:25,501 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 22:57:25,501 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 22:57:25,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 22:57:25,505 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:57:25" (1/1) ... [2024-11-07 22:57:25,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e7ed69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:25, skipping insertion in model container [2024-11-07 22:57:25,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:57:25" (1/1) ... [2024-11-07 22:57:25,550 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 22:57:26,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 22:57:26,211 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 22:57:26,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 22:57:26,470 INFO L204 MainTranslator]: Completed translation [2024-11-07 22:57:26,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:26 WrapperNode [2024-11-07 22:57:26,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 22:57:26,472 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 22:57:26,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 22:57:26,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 22:57:26,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:26" (1/1) ... [2024-11-07 22:57:26,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:26" (1/1) ... [2024-11-07 22:57:26,544 INFO L138 Inliner]: procedures = 503, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 84 [2024-11-07 22:57:26,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 22:57:26,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 22:57:26,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 22:57:26,546 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 22:57:26,553 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:26" (1/1) ... [2024-11-07 22:57:26,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:26" (1/1) ... [2024-11-07 22:57:26,559 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:26" (1/1) ... [2024-11-07 22:57:26,579 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [3, 4, 4]. 36 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 1, 0]. The 4 writes are split as follows [1, 1, 2]. [2024-11-07 22:57:26,579 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:26" (1/1) ... [2024-11-07 22:57:26,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:26" (1/1) ... [2024-11-07 22:57:26,593 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:26" (1/1) ... [2024-11-07 22:57:26,598 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:26" (1/1) ... [2024-11-07 22:57:26,603 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:26" (1/1) ... [2024-11-07 22:57:26,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:26" (1/1) ... [2024-11-07 22:57:26,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 22:57:26,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 22:57:26,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 22:57:26,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 22:57:26,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:26" (1/1) ... [2024-11-07 22:57:26,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 22:57:26,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 22:57:26,639 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 22:57:26,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 22:57:26,659 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-07 22:57:26,660 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-07 22:57:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 22:57:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-07 22:57:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-07 22:57:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-07 22:57:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 22:57:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 22:57:26,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 22:57:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-07 22:57:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-07 22:57:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-07 22:57:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 22:57:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-07 22:57:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-07 22:57:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-07 22:57:26,800 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 22:57:26,801 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 22:57:26,997 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-11-07 22:57:26,997 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 22:57:27,005 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 22:57:27,006 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 22:57:27,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:57:27 BoogieIcfgContainer [2024-11-07 22:57:27,006 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 22:57:27,008 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 22:57:27,009 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 22:57:27,014 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 22:57:27,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:57:25" (1/3) ... [2024-11-07 22:57:27,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab4af82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:57:27, skipping insertion in model container [2024-11-07 22:57:27,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:57:26" (2/3) ... [2024-11-07 22:57:27,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab4af82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:57:27, skipping insertion in model container [2024-11-07 22:57:27,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:57:27" (3/3) ... [2024-11-07 22:57:27,017 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2024-11-07 22:57:27,030 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 22:57:27,030 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 22:57:27,079 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 22:57:27,093 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;@76519445, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 22:57:27,093 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 22:57:27,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 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) [2024-11-07 22:57:27,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-07 22:57:27,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 22:57:27,108 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 22:57:27,108 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 22:57:27,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 22:57:27,113 INFO L85 PathProgramCache]: Analyzing trace with hash 51472802, now seen corresponding path program 1 times [2024-11-07 22:57:27,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 22:57:27,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206474116] [2024-11-07 22:57:27,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 22:57:27,125 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 22:57:27,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 22:57:27,128 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 22:57:27,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-07 22:57:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 22:57:27,322 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 22:57:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 22:57:27,433 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-07 22:57:27,435 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 22:57:27,436 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-07 22:57:27,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-07 22:57:27,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-07 22:57:27,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 22:57:27,643 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-07 22:57:27,677 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 22:57:27,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 10:57:27 BoogieIcfgContainer [2024-11-07 22:57:27,684 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 22:57:27,685 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 22:57:27,685 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 22:57:27,685 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 22:57:27,686 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:57:27" (3/4) ... [2024-11-07 22:57:27,689 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-07 22:57:27,690 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 22:57:27,691 INFO L158 Benchmark]: Toolchain (without parser) took 2192.03ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 89.7MB in the beginning and 217.0MB in the end (delta: -127.4MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2024-11-07 22:57:27,692 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:57:27,692 INFO L158 Benchmark]: CACSL2BoogieTranslator took 970.82ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 67.1MB in the end (delta: 22.4MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2024-11-07 22:57:27,693 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.47ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 63.9MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:57:27,693 INFO L158 Benchmark]: Boogie Preprocessor took 66.15ms. Allocated memory is still 117.4MB. Free memory was 63.9MB in the beginning and 61.3MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 22:57:27,694 INFO L158 Benchmark]: RCFGBuilder took 394.39ms. Allocated memory is still 117.4MB. Free memory was 61.3MB in the beginning and 46.4MB in the end (delta: 14.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 22:57:27,696 INFO L158 Benchmark]: TraceAbstraction took 675.80ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 45.5MB in the beginning and 217.8MB in the end (delta: -172.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:57:27,696 INFO L158 Benchmark]: Witness Printer took 4.98ms. Allocated memory is still 260.0MB. Free memory was 217.8MB in the beginning and 217.7MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:57:27,698 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 970.82ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 67.1MB in the end (delta: 22.4MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.47ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 63.9MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 66.15ms. Allocated memory is still 117.4MB. Free memory was 63.9MB in the beginning and 61.3MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 394.39ms. Allocated memory is still 117.4MB. Free memory was 61.3MB in the beginning and 46.4MB in the end (delta: 14.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 675.80ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 45.5MB in the beginning and 217.8MB in the end (delta: -172.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.98ms. Allocated memory is still 260.0MB. Free memory was 217.8MB in the beginning and 217.7MB in the end (delta: 48.1kB). 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: 1562]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1571. 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] [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] int data = *dataPtr1; [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={3:0}, dataPtr1={7:0}, dataPtr2={7:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] EXPR \read(data) [L1557] *dataPtr1 = data [L1555] int data = *dataPtr1; [L1560] int data = *dataPtr2; [L1560] EXPR \read(*dataPtr2) [L1560] int data = *dataPtr2; [L1562] EXPR \read(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] [L1562] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1562]: 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, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-07 22:57:27,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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