./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_64_good.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_3b4d5962-92f1-404f-b2e1-d73ca29e0787/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d5962-92f1-404f-b2e1-d73ca29e0787/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_3b4d5962-92f1-404f-b2e1-d73ca29e0787/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d5962-92f1-404f-b2e1-d73ca29e0787/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_64_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d5962-92f1-404f-b2e1-d73ca29e0787/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_3b4d5962-92f1-404f-b2e1-d73ca29e0787/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 505c99c7060109fd7563bcf178091e6242c81bcde3f3b7dbc1a689ed9ac97aa1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:52:36,711 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:52:36,795 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d5962-92f1-404f-b2e1-d73ca29e0787/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-23 23:52:36,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:52:36,803 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:52:36,843 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:52:36,844 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:52:36,845 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:52:36,845 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:52:36,845 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:52:36,846 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:52:36,847 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:52:36,847 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:52:36,847 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:52:36,848 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:52:36,848 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:52:36,848 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:52:36,849 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:52:36,849 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:52:36,849 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:52:36,849 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:52:36,849 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:52:36,849 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 23:52:36,849 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 23:52:36,849 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:52:36,849 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:52:36,850 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:52:36,850 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:52:36,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:52:36,850 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:52:36,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:52:36,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:52:36,850 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:52:36,851 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:52:36,851 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:52:36,852 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:52:36,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:52:36,852 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:52:36,852 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:52:36,852 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:52:36,852 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:52:36,852 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:52:36,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:52:36,852 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:52:36,853 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:52:36,853 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:52:36,853 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:52:36,853 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_3b4d5962-92f1-404f-b2e1-d73ca29e0787/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 -> 505c99c7060109fd7563bcf178091e6242c81bcde3f3b7dbc1a689ed9ac97aa1 [2024-11-23 23:52:37,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:52:37,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:52:37,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:52:37,171 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:52:37,171 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:52:37,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d5962-92f1-404f-b2e1-d73ca29e0787/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_64_good.i [2024-11-23 23:52:40,110 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d5962-92f1-404f-b2e1-d73ca29e0787/bin/uautomizer-verify-LYvppIcaGC/data/755c9afc1/5c3d139378704083a36849d2ab3577ff/FLAG8637c5351 [2024-11-23 23:52:40,494 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:52:40,495 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d5962-92f1-404f-b2e1-d73ca29e0787/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_64_good.i [2024-11-23 23:52:40,522 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d5962-92f1-404f-b2e1-d73ca29e0787/bin/uautomizer-verify-LYvppIcaGC/data/755c9afc1/5c3d139378704083a36849d2ab3577ff/FLAG8637c5351 [2024-11-23 23:52:40,690 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d5962-92f1-404f-b2e1-d73ca29e0787/bin/uautomizer-verify-LYvppIcaGC/data/755c9afc1/5c3d139378704083a36849d2ab3577ff [2024-11-23 23:52:40,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:52:40,695 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:52:40,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:52:40,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:52:40,701 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:52:40,702 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:52:40" (1/1) ... [2024-11-23 23:52:40,705 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@361df4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:40, skipping insertion in model container [2024-11-23 23:52:40,705 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:52:40" (1/1) ... [2024-11-23 23:52:40,769 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:52:41,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:52:41,596 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:52:41,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:52:41,926 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:52:41,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:41 WrapperNode [2024-11-23 23:52:41,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:52:41,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:52:41,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:52:41,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:52:41,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:41" (1/1) ... [2024-11-23 23:52:41,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:41" (1/1) ... [2024-11-23 23:52:41,985 INFO L138 Inliner]: procedures = 502, calls = 44, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 88 [2024-11-23 23:52:41,985 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:52:41,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:52:41,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:52:41,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:52:41,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:41" (1/1) ... [2024-11-23 23:52:41,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:41" (1/1) ... [2024-11-23 23:52:42,002 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:41" (1/1) ... [2024-11-23 23:52:42,033 INFO L175 MemorySlicer]: Split 7 memory accesses to 3 slices as follows [1, 3, 3]. 43 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0, 0]. The 4 writes are split as follows [0, 2, 2]. [2024-11-23 23:52:42,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:41" (1/1) ... [2024-11-23 23:52:42,039 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:41" (1/1) ... [2024-11-23 23:52:42,048 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:41" (1/1) ... [2024-11-23 23:52:42,049 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:41" (1/1) ... [2024-11-23 23:52:42,056 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:41" (1/1) ... [2024-11-23 23:52:42,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:41" (1/1) ... [2024-11-23 23:52:42,062 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:41" (1/1) ... [2024-11-23 23:52:42,064 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:52:42,069 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:52:42,069 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:52:42,069 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:52:42,070 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:41" (1/1) ... [2024-11-23 23:52:42,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:52:42,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d5962-92f1-404f-b2e1-d73ca29e0787/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:52:42,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d5962-92f1-404f-b2e1-d73ca29e0787/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:52:42,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d5962-92f1-404f-b2e1-d73ca29e0787/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:52:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2024-11-23 23:52:42,141 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2024-11-23 23:52:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-23 23:52:42,141 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-23 23:52:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 23:52:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 23:52:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 23:52:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 23:52:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:52:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:52:42,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:52:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 23:52:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 23:52:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 23:52:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 23:52:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:52:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:52:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:52:42,345 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:52:42,348 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:52:42,576 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-23 23:52:42,579 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:52:42,588 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:52:42,588 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 23:52:42,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:52:42 BoogieIcfgContainer [2024-11-23 23:52:42,589 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:52:42,591 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:52:42,592 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:52:42,596 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:52:42,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:52:40" (1/3) ... [2024-11-23 23:52:42,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3960ad78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:52:42, skipping insertion in model container [2024-11-23 23:52:42,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:41" (2/3) ... [2024-11-23 23:52:42,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3960ad78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:52:42, skipping insertion in model container [2024-11-23 23:52:42,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:52:42" (3/3) ... [2024-11-23 23:52:42,599 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_64_good.i [2024-11-23 23:52:42,614 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:52:42,616 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_64_good.i that has 3 procedures, 40 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-23 23:52:42,685 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:52:42,697 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;@76123b6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:52:42,698 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-23 23:52:42,702 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 33 states have internal predecessors, (36), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-23 23:52:42,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-23 23:52:42,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:52:42,710 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:52:42,711 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-23 23:52:42,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:52:42,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1216831151, now seen corresponding path program 1 times [2024-11-23 23:52:42,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:52:42,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983134237] [2024-11-23 23:52:42,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:52:42,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:52:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:52:43,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:52:43,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:52:43,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983134237] [2024-11-23 23:52:43,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983134237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:52:43,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:52:43,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:52:43,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140386917] [2024-11-23 23:52:43,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:52:43,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:52:43,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:52:43,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:52:43,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:52:43,381 INFO L87 Difference]: Start difference. First operand has 40 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 33 states have internal predecessors, (36), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:52:43,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:52:43,427 INFO L93 Difference]: Finished difference Result 69 states and 82 transitions. [2024-11-23 23:52:43,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:52:43,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-11-23 23:52:43,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:52:43,435 INFO L225 Difference]: With dead ends: 69 [2024-11-23 23:52:43,435 INFO L226 Difference]: Without dead ends: 27 [2024-11-23 23:52:43,439 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:52:43,443 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 1 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:52:43,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 82 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:52:43,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-23 23:52:43,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-23 23:52:43,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-23 23:52:43,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2024-11-23 23:52:43,481 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 10 [2024-11-23 23:52:43,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:52:43,483 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2024-11-23 23:52:43,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:52:43,483 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2024-11-23 23:52:43,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-23 23:52:43,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:52:43,484 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:52:43,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:52:43,485 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-23 23:52:43,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:52:43,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1279407152, now seen corresponding path program 1 times [2024-11-23 23:52:43,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:52:43,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761758025] [2024-11-23 23:52:43,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:52:43,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:52:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:52:43,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:52:43,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:52:43,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761758025] [2024-11-23 23:52:43,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761758025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:52:43,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:52:43,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:52:43,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394111691] [2024-11-23 23:52:43,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:52:43,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:52:43,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:52:43,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:52:43,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:52:43,667 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 23:52:43,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:52:43,687 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2024-11-23 23:52:43,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:52:43,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-23 23:52:43,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:52:43,690 INFO L225 Difference]: With dead ends: 27 [2024-11-23 23:52:43,690 INFO L226 Difference]: Without dead ends: 26 [2024-11-23 23:52:43,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:52:43,691 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:52:43,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 49 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:52:43,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-23 23:52:43,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-23 23:52:43,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-23 23:52:43,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2024-11-23 23:52:43,697 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 23 [2024-11-23 23:52:43,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:52:43,698 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-11-23 23:52:43,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 23:52:43,698 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2024-11-23 23:52:43,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-23 23:52:43,698 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:52:43,699 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:52:43,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:52:43,699 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-23 23:52:43,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:52:43,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1006916125, now seen corresponding path program 1 times [2024-11-23 23:52:43,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:52:43,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072173129] [2024-11-23 23:52:43,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:52:43,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:52:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:52:43,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:52:43,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:52:43,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072173129] [2024-11-23 23:52:43,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072173129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:52:43,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:52:43,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:52:43,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000417591] [2024-11-23 23:52:43,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:52:43,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:52:43,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:52:43,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:52:43,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:52:43,874 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 23:52:43,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:52:43,890 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2024-11-23 23:52:43,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:52:43,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-11-23 23:52:43,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:52:43,891 INFO L225 Difference]: With dead ends: 26 [2024-11-23 23:52:43,892 INFO L226 Difference]: Without dead ends: 0 [2024-11-23 23:52:43,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:52:43,893 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:52:43,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:52:43,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-23 23:52:43,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-23 23:52:43,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:43,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 23:52:43,898 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2024-11-23 23:52:43,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:52:43,898 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:52:43,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 23:52:43,898 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-23 23:52:43,898 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-23 23:52:43,903 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-23 23:52:43,903 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-23 23:52:43,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-23 23:52:43,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-23 23:52:43,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:52:43,907 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-23 23:52:43,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-23 23:52:43,934 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:52:43,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:52:43 BoogieIcfgContainer [2024-11-23 23:52:43,941 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:52:43,942 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:52:43,942 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:52:43,942 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:52:43,943 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:52:42" (3/4) ... [2024-11-23 23:52:43,945 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 23:52:43,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2024-11-23 23:52:43,949 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2024-11-23 23:52:43,952 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-23 23:52:43,953 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-23 23:52:43,953 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-23 23:52:43,953 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 23:52:44,032 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d5962-92f1-404f-b2e1-d73ca29e0787/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 23:52:44,033 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d5962-92f1-404f-b2e1-d73ca29e0787/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 23:52:44,033 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:52:44,034 INFO L158 Benchmark]: Toolchain (without parser) took 3339.89ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 39.1MB in the end (delta: 50.3MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2024-11-23 23:52:44,034 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:52:44,034 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1231.05ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 79.5MB in the end (delta: 9.9MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-11-23 23:52:44,035 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.96ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 76.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:52:44,035 INFO L158 Benchmark]: Boogie Preprocessor took 82.15ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 74.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:52:44,035 INFO L158 Benchmark]: RCFGBuilder took 520.71ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 59.3MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:52:44,036 INFO L158 Benchmark]: TraceAbstraction took 1349.76ms. Allocated memory is still 117.4MB. Free memory was 58.8MB in the beginning and 43.7MB in the end (delta: 15.1MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2024-11-23 23:52:44,036 INFO L158 Benchmark]: Witness Printer took 91.31ms. Allocated memory is still 117.4MB. Free memory was 43.7MB in the beginning and 39.1MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:52:44,038 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1231.05ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 79.5MB in the end (delta: 9.9MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.96ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 76.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 82.15ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 74.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 520.71ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 59.3MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1349.76ms. Allocated memory is still 117.4MB. Free memory was 58.8MB in the beginning and 43.7MB in the end (delta: 15.1MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * Witness Printer took 91.31ms. Allocated memory is still 117.4MB. Free memory was 43.7MB in the beginning and 39.1MB in the end (delta: 4.6MB). 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 - PositiveResult [Line: 1593]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1593]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 40 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 179 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 93 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 9, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-23 23:52:44,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d5962-92f1-404f-b2e1-d73ca29e0787/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: TRUE