./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 32bit --witnessprinter.graph.data.programhash a7dff50a5c131f5f3e263636f30a459d7f3ec4f0fe901f92a5987676a99374c1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 20:45:13,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 20:45:13,841 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 20:45:13,845 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 20:45:13,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 20:45:13,870 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 20:45:13,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 20:45:13,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 20:45:13,871 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 20:45:13,872 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 20:45:13,872 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 20:45:13,872 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 20:45:13,873 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 20:45:13,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 20:45:13,875 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 20:45:13,875 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 20:45:13,875 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 20:45:13,875 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 20:45:13,876 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 20:45:13,876 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 20:45:13,876 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 20:45:13,879 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 20:45:13,879 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 20:45:13,879 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 20:45:13,879 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 20:45:13,880 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 20:45:13,880 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 20:45:13,880 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 20:45:13,880 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 20:45:13,881 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 20:45:13,881 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 20:45:13,881 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 20:45:13,881 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 20:45:13,882 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 20:45:13,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:45:13,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 20:45:13,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 20:45:13,883 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 20:45:13,883 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 20:45:13,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 20:45:13,883 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 20:45:13,884 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 20:45:13,884 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 20:45:13,884 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 20:45:13,884 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7dff50a5c131f5f3e263636f30a459d7f3ec4f0fe901f92a5987676a99374c1 [2024-10-24 20:45:14,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 20:45:14,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 20:45:14,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 20:45:14,088 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 20:45:14,088 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 20:45:14,089 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2024-10-24 20:45:15,390 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 20:45:15,524 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 20:45:15,525 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2024-10-24 20:45:15,534 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f6207aa4/8a7bc84da76a435b86cb79f874cf8bf9/FLAG38d966cb0 [2024-10-24 20:45:15,551 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f6207aa4/8a7bc84da76a435b86cb79f874cf8bf9 [2024-10-24 20:45:15,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 20:45:15,554 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 20:45:15,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 20:45:15,556 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 20:45:15,560 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 20:45:15,561 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:45:15" (1/1) ... [2024-10-24 20:45:15,562 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fbcee63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:15, skipping insertion in model container [2024-10-24 20:45:15,562 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:45:15" (1/1) ... [2024-10-24 20:45:15,580 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 20:45:15,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:45:15,752 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 20:45:15,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:45:15,789 INFO L204 MainTranslator]: Completed translation [2024-10-24 20:45:15,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:15 WrapperNode [2024-10-24 20:45:15,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 20:45:15,791 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 20:45:15,791 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 20:45:15,792 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 20:45:15,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:15" (1/1) ... [2024-10-24 20:45:15,803 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:15" (1/1) ... [2024-10-24 20:45:15,820 INFO L138 Inliner]: procedures = 16, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-10-24 20:45:15,821 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 20:45:15,821 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 20:45:15,822 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 20:45:15,822 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 20:45:15,832 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:15" (1/1) ... [2024-10-24 20:45:15,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:15" (1/1) ... [2024-10-24 20:45:15,835 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:15" (1/1) ... [2024-10-24 20:45:15,855 INFO L175 MemorySlicer]: Split 29 memory accesses to 6 slices as follows [2, 4, 5, 8, 5, 5]. 28 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 9 writes are split as follows [0, 1, 1, 3, 2, 2]. [2024-10-24 20:45:15,855 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:15" (1/1) ... [2024-10-24 20:45:15,855 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:15" (1/1) ... [2024-10-24 20:45:15,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:15" (1/1) ... [2024-10-24 20:45:15,863 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:15" (1/1) ... [2024-10-24 20:45:15,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:15" (1/1) ... [2024-10-24 20:45:15,866 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:15" (1/1) ... [2024-10-24 20:45:15,871 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 20:45:15,872 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 20:45:15,872 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 20:45:15,872 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 20:45:15,872 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:15" (1/1) ... [2024-10-24 20:45:15,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:45:15,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:45:15,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 20:45:15,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 20:45:15,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 20:45:15,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 20:45:15,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 20:45:15,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 20:45:15,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 20:45:15,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 20:45:15,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-24 20:45:15,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 20:45:15,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 20:45:15,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 20:45:15,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 20:45:15,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 20:45:15,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 20:45:15,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-24 20:45:15,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 20:45:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 20:45:15,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 20:45:15,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 20:45:15,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 20:45:15,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 20:45:15,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 20:45:15,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-24 20:45:15,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 20:45:15,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 20:45:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_40_0 [2024-10-24 20:45:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_40_0 [2024-10-24 20:45:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 20:45:16,035 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 20:45:16,038 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 20:45:16,257 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-10-24 20:45:16,258 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 20:45:16,294 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 20:45:16,294 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 20:45:16,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:45:16 BoogieIcfgContainer [2024-10-24 20:45:16,296 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 20:45:16,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 20:45:16,300 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 20:45:16,303 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 20:45:16,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:45:15" (1/3) ... [2024-10-24 20:45:16,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df9fe24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:45:16, skipping insertion in model container [2024-10-24 20:45:16,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:15" (2/3) ... [2024-10-24 20:45:16,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df9fe24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:45:16, skipping insertion in model container [2024-10-24 20:45:16,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:45:16" (3/3) ... [2024-10-24 20:45:16,308 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_prodbin.c [2024-10-24 20:45:16,322 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 20:45:16,322 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-24 20:45:16,376 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 20:45:16,381 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;@4e43c5f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 20:45:16,382 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-10-24 20:45:16,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 48 states have internal predecessors, (52), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-24 20:45:16,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-24 20:45:16,392 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:45:16,392 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:45:16,393 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-24 20:45:16,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:45:16,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1055229645, now seen corresponding path program 1 times [2024-10-24 20:45:16,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:45:16,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302723313] [2024-10-24 20:45:16,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:45:16,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:45:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:45:16,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 20:45:16,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:45:16,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302723313] [2024-10-24 20:45:16,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302723313] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:45:16,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:45:16,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:45:16,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379653003] [2024-10-24 20:45:16,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:45:16,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 20:45:16,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:45:16,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 20:45:16,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 20:45:16,620 INFO L87 Difference]: Start difference. First operand has 54 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 48 states have internal predecessors, (52), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 20:45:16,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:45:16,644 INFO L93 Difference]: Finished difference Result 106 states and 121 transitions. [2024-10-24 20:45:16,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 20:45:16,645 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-24 20:45:16,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:45:16,650 INFO L225 Difference]: With dead ends: 106 [2024-10-24 20:45:16,650 INFO L226 Difference]: Without dead ends: 51 [2024-10-24 20:45:16,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 20:45:16,654 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:45:16,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:45:16,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-10-24 20:45:16,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-10-24 20:45:16,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 46 states have internal predecessors, (47), 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) [2024-10-24 20:45:16,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2024-10-24 20:45:16,682 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 7 [2024-10-24 20:45:16,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:45:16,683 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2024-10-24 20:45:16,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 20:45:16,683 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2024-10-24 20:45:16,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-24 20:45:16,684 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:45:16,684 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:45:16,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 20:45:16,684 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-24 20:45:16,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:45:16,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1112487947, now seen corresponding path program 1 times [2024-10-24 20:45:16,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:45:16,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859285851] [2024-10-24 20:45:16,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:45:16,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:45:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:45:16,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1308224436] [2024-10-24 20:45:16,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:45:16,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:45:16,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:45:16,739 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:45:16,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 20:45:16,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 20:45:16,851 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 20:45:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 20:45:16,894 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 20:45:16,895 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 20:45:16,896 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-10-24 20:45:16,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-10-24 20:45:16,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2024-10-24 20:45:16,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2024-10-24 20:45:16,900 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2024-10-24 20:45:16,900 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2024-10-24 20:45:16,900 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2024-10-24 20:45:16,900 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2024-10-24 20:45:16,900 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-10-24 20:45:16,900 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-10-24 20:45:16,901 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2024-10-24 20:45:16,901 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2024-10-24 20:45:16,901 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-10-24 20:45:16,901 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-10-24 20:45:16,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-10-24 20:45:16,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-10-24 20:45:16,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 20:45:17,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:45:17,110 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-24 20:45:17,135 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 20:45:17,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 08:45:17 BoogieIcfgContainer [2024-10-24 20:45:17,140 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 20:45:17,141 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 20:45:17,141 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 20:45:17,141 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 20:45:17,141 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:45:16" (3/4) ... [2024-10-24 20:45:17,143 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 20:45:17,144 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 20:45:17,145 INFO L158 Benchmark]: Toolchain (without parser) took 1591.13ms. Allocated memory is still 163.6MB. Free memory was 108.7MB in the beginning and 100.3MB in the end (delta: 8.4MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2024-10-24 20:45:17,146 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 163.6MB. Free memory is still 125.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 20:45:17,146 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.71ms. Allocated memory is still 163.6MB. Free memory was 108.2MB in the beginning and 96.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 20:45:17,147 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.26ms. Allocated memory is still 163.6MB. Free memory was 95.6MB in the beginning and 94.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 20:45:17,147 INFO L158 Benchmark]: Boogie Preprocessor took 50.16ms. Allocated memory is still 163.6MB. Free memory was 94.4MB in the beginning and 92.0MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 20:45:17,150 INFO L158 Benchmark]: RCFGBuilder took 423.91ms. Allocated memory is still 163.6MB. Free memory was 92.0MB in the beginning and 72.1MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-24 20:45:17,150 INFO L158 Benchmark]: TraceAbstraction took 842.52ms. Allocated memory is still 163.6MB. Free memory was 71.5MB in the beginning and 100.3MB in the end (delta: -28.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 20:45:17,150 INFO L158 Benchmark]: Witness Printer took 3.98ms. Allocated memory is still 163.6MB. Free memory is still 100.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 20:45:17,151 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 163.6MB. Free memory is still 125.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.71ms. Allocated memory is still 163.6MB. Free memory was 108.2MB in the beginning and 96.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.26ms. Allocated memory is still 163.6MB. Free memory was 95.6MB in the beginning and 94.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.16ms. Allocated memory is still 163.6MB. Free memory was 94.4MB in the beginning and 92.0MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 423.91ms. Allocated memory is still 163.6MB. Free memory was 92.0MB in the beginning and 72.1MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 842.52ms. Allocated memory is still 163.6MB. Free memory was 71.5MB in the beginning and 100.3MB in the end (delta: -28.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.98ms. Allocated memory is still 163.6MB. Free memory is still 100.3MB. 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: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of to_int at line 87. Possible FailurePath: [L82] int a; [L83] int b; [L84] int x; [L85] int y; [L86] int z; [L87] a = __VERIFIER_nondet_double() [L88] b = __VERIFIER_nondet_double() [L89] EXPR \read(b) [L89] CALL assume_abort_if_not(b >= 1) [L24] COND FALSE !(!cond) [L89] RET assume_abort_if_not(b >= 1) [L90] EXPR \read(a) [L90] x = a [L91] EXPR \read(b) [L91] y = b [L92] z = 0 [L93] CALL func_to_recursive_line_30_to_40_0(&a, &b, &z, &x, &y) VAL [\old(a)={4:0}, \old(b)={8:0}, \old(x)={6:0}, \old(y)={5:0}, \old(z)={7:0}] [L54] \read(*z) [L54] EXPR \read(*x) [L54] EXPR \read(*y) VAL [\old(a)={4:0}, \old(b)={8:0}, \old(x)={6:0}, \old(y)={5:0}, \old(z)={7:0}, a={4:0}, b={8:0}, x={6:0}, y={5:0}, z={7:0}] [L54] (*x) * (*y) VAL [\old(a)={4:0}, \old(b)={8:0}, \old(x)={6:0}, \old(y)={5:0}, \old(z)={7:0}, a={4:0}, b={8:0}, x={6:0}, y={5:0}, z={7:0}] - UnprovableResult [Line: 94]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 94]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: 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 3 procedures, 54 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 55 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-24 20:45:17,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 32bit --witnessprinter.graph.data.programhash a7dff50a5c131f5f3e263636f30a459d7f3ec4f0fe901f92a5987676a99374c1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 20:45:19,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 20:45:19,080 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2024-10-24 20:45:19,085 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 20:45:19,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 20:45:19,112 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 20:45:19,112 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 20:45:19,112 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 20:45:19,113 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 20:45:19,113 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 20:45:19,113 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 20:45:19,114 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 20:45:19,114 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 20:45:19,114 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 20:45:19,114 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 20:45:19,115 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 20:45:19,115 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 20:45:19,117 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 20:45:19,117 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 20:45:19,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 20:45:19,120 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 20:45:19,121 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 20:45:19,121 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 20:45:19,121 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 20:45:19,121 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 20:45:19,121 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 20:45:19,121 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 20:45:19,121 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 20:45:19,122 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 20:45:19,122 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 20:45:19,122 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 20:45:19,122 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 20:45:19,122 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 20:45:19,122 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 20:45:19,127 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 20:45:19,127 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 20:45:19,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:45:19,128 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 20:45:19,128 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 20:45:19,128 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 20:45:19,128 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 20:45:19,130 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 20:45:19,130 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 20:45:19,131 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 20:45:19,131 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 20:45:19,131 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 20:45:19,131 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 20:45:19,132 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7dff50a5c131f5f3e263636f30a459d7f3ec4f0fe901f92a5987676a99374c1 [2024-10-24 20:45:19,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 20:45:19,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 20:45:19,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 20:45:19,409 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 20:45:19,409 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 20:45:19,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2024-10-24 20:45:20,734 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 20:45:20,890 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 20:45:20,891 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2024-10-24 20:45:20,900 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18034d6c9/7b228b68910d4ec1b4869085b49a6e30/FLAGb34da44d5 [2024-10-24 20:45:20,915 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18034d6c9/7b228b68910d4ec1b4869085b49a6e30 [2024-10-24 20:45:20,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 20:45:20,918 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 20:45:20,919 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 20:45:20,921 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 20:45:20,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 20:45:20,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:45:20" (1/1) ... [2024-10-24 20:45:20,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b885c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:20, skipping insertion in model container [2024-10-24 20:45:20,931 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:45:20" (1/1) ... [2024-10-24 20:45:20,949 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 20:45:21,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:45:21,105 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 20:45:21,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:45:21,147 INFO L204 MainTranslator]: Completed translation [2024-10-24 20:45:21,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:21 WrapperNode [2024-10-24 20:45:21,147 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 20:45:21,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 20:45:21,148 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 20:45:21,148 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 20:45:21,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:21" (1/1) ... [2024-10-24 20:45:21,162 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:21" (1/1) ... [2024-10-24 20:45:21,178 INFO L138 Inliner]: procedures = 19, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2024-10-24 20:45:21,179 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 20:45:21,180 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 20:45:21,180 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 20:45:21,180 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 20:45:21,188 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:21" (1/1) ... [2024-10-24 20:45:21,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:21" (1/1) ... [2024-10-24 20:45:21,195 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:21" (1/1) ... [2024-10-24 20:45:21,205 INFO L175 MemorySlicer]: Split 29 memory accesses to 6 slices as follows [2, 5, 5, 4, 5, 8]. 28 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 9 writes are split as follows [0, 2, 1, 1, 2, 3]. [2024-10-24 20:45:21,205 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:21" (1/1) ... [2024-10-24 20:45:21,205 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:21" (1/1) ... [2024-10-24 20:45:21,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:21" (1/1) ... [2024-10-24 20:45:21,217 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:21" (1/1) ... [2024-10-24 20:45:21,219 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:21" (1/1) ... [2024-10-24 20:45:21,220 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:21" (1/1) ... [2024-10-24 20:45:21,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 20:45:21,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 20:45:21,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 20:45:21,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 20:45:21,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:21" (1/1) ... [2024-10-24 20:45:21,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:45:21,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:45:21,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 20:45:21,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 20:45:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 20:45:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 20:45:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-24 20:45:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-24 20:45:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-24 20:45:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-10-24 20:45:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-10-24 20:45:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 20:45:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-24 20:45:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-24 20:45:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-24 20:45:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-24 20:45:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-10-24 20:45:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-10-24 20:45:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 20:45:21,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 20:45:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 20:45:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 20:45:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_40_0 [2024-10-24 20:45:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_40_0 [2024-10-24 20:45:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 20:45:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-24 20:45:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-24 20:45:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-24 20:45:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-24 20:45:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-10-24 20:45:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-10-24 20:45:21,375 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 20:45:21,377 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 20:45:22,428 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2024-10-24 20:45:22,428 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 20:45:22,458 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 20:45:22,458 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 20:45:22,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:45:22 BoogieIcfgContainer [2024-10-24 20:45:22,458 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 20:45:22,460 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 20:45:22,460 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 20:45:22,462 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 20:45:22,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:45:20" (1/3) ... [2024-10-24 20:45:22,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc6406e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:45:22, skipping insertion in model container [2024-10-24 20:45:22,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:45:21" (2/3) ... [2024-10-24 20:45:22,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc6406e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:45:22, skipping insertion in model container [2024-10-24 20:45:22,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:45:22" (3/3) ... [2024-10-24 20:45:22,467 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_prodbin.c [2024-10-24 20:45:22,481 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 20:45:22,481 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-24 20:45:22,524 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 20:45:22,529 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;@4fede0af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 20:45:22,529 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-10-24 20:45:22,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 48 states have internal predecessors, (52), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-24 20:45:22,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-24 20:45:22,537 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:45:22,538 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:45:22,538 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-24 20:45:22,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:45:22,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1055229645, now seen corresponding path program 1 times [2024-10-24 20:45:22,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 20:45:22,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191627352] [2024-10-24 20:45:22,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:45:22,552 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 [2024-10-24 20:45:22,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 20:45:22,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/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) [2024-10-24 20:45:22,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-24 20:45:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:45:22,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 20:45:22,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:45:22,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 20:45:22,699 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:45:22,699 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 20:45:22,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191627352] [2024-10-24 20:45:22,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191627352] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:45:22,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:45:22,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:45:22,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117731463] [2024-10-24 20:45:22,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:45:22,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 20:45:22,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 20:45:22,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 20:45:22,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 20:45:22,727 INFO L87 Difference]: Start difference. First operand has 54 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 48 states have internal predecessors, (52), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 20:45:23,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:45:23,015 INFO L93 Difference]: Finished difference Result 103 states and 121 transitions. [2024-10-24 20:45:23,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 20:45:23,018 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-24 20:45:23,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:45:23,023 INFO L225 Difference]: With dead ends: 103 [2024-10-24 20:45:23,023 INFO L226 Difference]: Without dead ends: 48 [2024-10-24 20:45:23,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 20:45:23,028 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:45:23,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:45:23,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-10-24 20:45:23,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-10-24 20:45:23,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 43 states have internal predecessors, (44), 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) [2024-10-24 20:45:23,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2024-10-24 20:45:23,057 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 7 [2024-10-24 20:45:23,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:45:23,057 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2024-10-24 20:45:23,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 20:45:23,058 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2024-10-24 20:45:23,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-24 20:45:23,058 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:45:23,058 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:45:23,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-24 20:45:23,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/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 [2024-10-24 20:45:23,259 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-24 20:45:23,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:45:23,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1112487947, now seen corresponding path program 1 times [2024-10-24 20:45:23,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 20:45:23,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557289788] [2024-10-24 20:45:23,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:45:23,261 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 [2024-10-24 20:45:23,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 20:45:23,264 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/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) [2024-10-24 20:45:23,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (3)] Waiting until timeout for monitored process [2024-10-24 20:45:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 20:45:23,420 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 20:45:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 20:45:23,519 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-24 20:45:23,519 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 20:45:23,521 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-10-24 20:45:23,522 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-10-24 20:45:23,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2024-10-24 20:45:23,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2024-10-24 20:45:23,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2024-10-24 20:45:23,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2024-10-24 20:45:23,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2024-10-24 20:45:23,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2024-10-24 20:45:23,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-10-24 20:45:23,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-10-24 20:45:23,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2024-10-24 20:45:23,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2024-10-24 20:45:23,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-10-24 20:45:23,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-10-24 20:45:23,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-10-24 20:45:23,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-10-24 20:45:23,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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 (3)] Forceful destruction successful, exit code 0 [2024-10-24 20:45:23,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/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 [2024-10-24 20:45:23,734 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-24 20:45:23,755 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 20:45:23,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 08:45:23 BoogieIcfgContainer [2024-10-24 20:45:23,758 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 20:45:23,758 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 20:45:23,758 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 20:45:23,759 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 20:45:23,759 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:45:22" (3/4) ... [2024-10-24 20:45:23,760 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-24 20:45:23,793 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 20:45:23,793 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 20:45:23,794 INFO L158 Benchmark]: Toolchain (without parser) took 2875.50ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 40.0MB in the beginning and 60.5MB in the end (delta: -20.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 20:45:23,794 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 56.6MB. Free memory is still 31.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 20:45:23,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.03ms. Allocated memory is still 71.3MB. Free memory was 39.9MB in the beginning and 44.7MB in the end (delta: -4.8MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2024-10-24 20:45:23,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.73ms. Allocated memory is still 71.3MB. Free memory was 44.7MB in the beginning and 43.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 20:45:23,794 INFO L158 Benchmark]: Boogie Preprocessor took 42.41ms. Allocated memory is still 71.3MB. Free memory was 43.0MB in the beginning and 40.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 20:45:23,795 INFO L158 Benchmark]: RCFGBuilder took 1235.88ms. Allocated memory is still 71.3MB. Free memory was 40.4MB in the beginning and 39.4MB in the end (delta: 1.0MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2024-10-24 20:45:23,795 INFO L158 Benchmark]: TraceAbstraction took 1298.33ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 38.7MB in the beginning and 62.6MB in the end (delta: -23.9MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2024-10-24 20:45:23,795 INFO L158 Benchmark]: Witness Printer took 34.75ms. Allocated memory is still 86.0MB. Free memory was 62.6MB in the beginning and 60.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 20:45:23,797 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 56.6MB. Free memory is still 31.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.03ms. Allocated memory is still 71.3MB. Free memory was 39.9MB in the beginning and 44.7MB in the end (delta: -4.8MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.73ms. Allocated memory is still 71.3MB. Free memory was 44.7MB in the beginning and 43.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.41ms. Allocated memory is still 71.3MB. Free memory was 43.0MB in the beginning and 40.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1235.88ms. Allocated memory is still 71.3MB. Free memory was 40.4MB in the beginning and 39.4MB in the end (delta: 1.0MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1298.33ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 38.7MB in the beginning and 62.6MB in the end (delta: -23.9MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * Witness Printer took 34.75ms. Allocated memory is still 86.0MB. Free memory was 62.6MB in the beginning and 60.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 54]: integer overflow possible integer overflow possible We found a FailurePath: [L82] int a; [L83] int b; [L84] int x; [L85] int y; [L86] int z; [L87] a = __VERIFIER_nondet_double() [L88] b = __VERIFIER_nondet_double() [L89] EXPR \read(b) [L89] CALL assume_abort_if_not(b >= 1) [L24] COND FALSE !(!cond) [L89] RET assume_abort_if_not(b >= 1) [L90] EXPR \read(a) [L90] x = a [L91] EXPR \read(b) [L91] y = b [L92] z = 0 [L93] CALL func_to_recursive_line_30_to_40_0(&a, &b, &z, &x, &y) VAL [\old(a)={6:0}, \old(b)={-2147483647:0}, \old(x)={-2147483643:0}, \old(y)={1048582:0}, \old(z)={-2147483644:0}] [L54] \read(*z) [L54] EXPR \read(*x) [L54] EXPR \read(*y) VAL [\old(a)={6:0}, \old(b)={-2147483647:0}, \old(x)={-2147483643:0}, \old(y)={1048582:0}, \old(z)={-2147483644:0}, a={6:0}, b={-2147483647:0}, x={-2147483643:0}, y={1048582:0}, z={-2147483644:0}] [L54] (*x) * (*y) VAL [\old(a)={6:0}, \old(b)={-2147483647:0}, \old(x)={-2147483643:0}, \old(y)={1048582:0}, \old(z)={-2147483644:0}, a={6:0}, b={-2147483647:0}, x={-2147483643:0}, y={1048582:0}, z={-2147483644:0}] - UnprovableResult [Line: 94]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 94]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: 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 3 procedures, 54 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 52 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 92 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-24 20:45:23,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)