./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../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-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 17:52:38,911 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 17:52:38,981 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 17:52:38,984 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 17:52:38,985 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 17:52:39,005 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 17:52:39,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 17:52:39,006 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 17:52:39,006 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 17:52:39,006 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 17:52:39,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 17:52:39,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 17:52:39,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 17:52:39,010 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 17:52:39,011 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 17:52:39,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 17:52:39,011 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 17:52:39,011 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 17:52:39,011 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 17:52:39,011 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 17:52:39,012 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 17:52:39,012 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 17:52:39,012 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 17:52:39,012 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 17:52:39,014 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 17:52:39,014 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 17:52:39,014 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 17:52:39,014 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 17:52:39,014 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 17:52:39,015 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 17:52:39,015 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 17:52:39,015 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 17:52:39,015 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 17:52:39,015 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 17:52:39,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:52:39,015 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 17:52:39,016 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 17:52:39,016 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 17:52:39,016 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 17:52:39,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 17:52:39,016 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 17:52:39,017 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 17:52:39,017 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 17:52:39,017 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 17:52:39,018 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7dff50a5c131f5f3e263636f30a459d7f3ec4f0fe901f92a5987676a99374c1 [2024-11-12 17:52:39,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 17:52:39,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 17:52:39,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 17:52:39,238 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 17:52:39,238 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 17:52:39,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2024-11-12 17:52:40,688 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 17:52:40,853 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 17:52:40,853 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2024-11-12 17:52:40,863 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f477c6495/ad108eb7b023432a9cb4c46b7d98d173/FLAG588f042ef [2024-11-12 17:52:40,875 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f477c6495/ad108eb7b023432a9cb4c46b7d98d173 [2024-11-12 17:52:40,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 17:52:40,879 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 17:52:40,881 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 17:52:40,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 17:52:40,886 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 17:52:40,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:52:40" (1/1) ... [2024-11-12 17:52:40,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62e46711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:40, skipping insertion in model container [2024-11-12 17:52:40,889 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:52:40" (1/1) ... [2024-11-12 17:52:40,907 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 17:52:41,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:52:41,152 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 17:52:41,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:52:41,184 INFO L204 MainTranslator]: Completed translation [2024-11-12 17:52:41,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:41 WrapperNode [2024-11-12 17:52:41,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 17:52:41,186 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 17:52:41,186 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 17:52:41,186 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 17:52:41,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:41" (1/1) ... [2024-11-12 17:52:41,200 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:41" (1/1) ... [2024-11-12 17:52:41,217 INFO L138 Inliner]: procedures = 16, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-11-12 17:52:41,218 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 17:52:41,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 17:52:41,219 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 17:52:41,219 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 17:52:41,227 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:41" (1/1) ... [2024-11-12 17:52:41,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:41" (1/1) ... [2024-11-12 17:52:41,230 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:41" (1/1) ... [2024-11-12 17:52:41,242 INFO L175 MemorySlicer]: Split 29 memory accesses to 6 slices as follows [2, 5, 4, 5, 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]. [2024-11-12 17:52:41,242 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:41" (1/1) ... [2024-11-12 17:52:41,242 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:41" (1/1) ... [2024-11-12 17:52:41,248 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:41" (1/1) ... [2024-11-12 17:52:41,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:41" (1/1) ... [2024-11-12 17:52:41,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:41" (1/1) ... [2024-11-12 17:52:41,254 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:41" (1/1) ... [2024-11-12 17:52:41,256 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 17:52:41,257 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 17:52:41,257 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 17:52:41,257 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 17:52:41,258 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:41" (1/1) ... [2024-11-12 17:52:41,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:52:41,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:52:41,284 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) [2024-11-12 17:52:41,286 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 [2024-11-12 17:52:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 17:52:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 17:52:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 17:52:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 17:52:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 17:52:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-12 17:52:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-12 17:52:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 17:52:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 17:52:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 17:52:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 17:52:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 17:52:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-12 17:52:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-12 17:52:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 17:52:41,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 17:52:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 17:52:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 17:52:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 17:52:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 17:52:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-12 17:52:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-12 17:52:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 17:52:41,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 17:52:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_40_0 [2024-11-12 17:52:41,327 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_40_0 [2024-11-12 17:52:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 17:52:41,426 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 17:52:41,428 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 17:52:41,678 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-12 17:52:41,679 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 17:52:41,690 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 17:52:41,690 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 17:52:41,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:52:41 BoogieIcfgContainer [2024-11-12 17:52:41,691 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 17:52:41,693 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 17:52:41,693 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 17:52:41,696 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 17:52:41,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:52:40" (1/3) ... [2024-11-12 17:52:41,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fee224a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:52:41, skipping insertion in model container [2024-11-12 17:52:41,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:41" (2/3) ... [2024-11-12 17:52:41,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fee224a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:52:41, skipping insertion in model container [2024-11-12 17:52:41,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:52:41" (3/3) ... [2024-11-12 17:52:41,698 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_prodbin.c [2024-11-12 17:52:41,712 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 17:52:41,713 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-12 17:52:41,760 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 17:52:41,766 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;@57c635b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 17:52:41,767 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-12 17:52:41,770 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 53 states have internal predecessors, (57), 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) [2024-11-12 17:52:41,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-12 17:52:41,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:52:41,775 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:52:41,776 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)] === [2024-11-12 17:52:41,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:52:41,780 INFO L85 PathProgramCache]: Analyzing trace with hash 121515862, now seen corresponding path program 1 times [2024-11-12 17:52:41,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:52:41,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883070638] [2024-11-12 17:52:41,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:52:41,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:52:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:52:41,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:52:41,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:52:41,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883070638] [2024-11-12 17:52:41,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883070638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:52:41,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:52:41,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:52:41,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086948397] [2024-11-12 17:52:41,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:52:41,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 17:52:41,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:52:42,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 17:52:42,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 17:52:42,013 INFO L87 Difference]: Start difference. First operand has 59 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 53 states have internal predecessors, (57), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-12 17:52:42,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:52:42,050 INFO L93 Difference]: Finished difference Result 114 states and 129 transitions. [2024-11-12 17:52:42,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 17:52:42,052 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 8 [2024-11-12 17:52:42,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:52:42,060 INFO L225 Difference]: With dead ends: 114 [2024-11-12 17:52:42,061 INFO L226 Difference]: Without dead ends: 52 [2024-11-12 17:52:42,064 INFO L434 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 [2024-11-12 17:52:42,069 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:52:42,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:52:42,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-12 17:52:42,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-12 17:52:42,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 47 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-12 17:52:42,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2024-11-12 17:52:42,101 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 8 [2024-11-12 17:52:42,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:52:42,101 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2024-11-12 17:52:42,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-12 17:52:42,101 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2024-11-12 17:52:42,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-12 17:52:42,102 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:52:42,102 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:52:42,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 17:52:42,102 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)] === [2024-11-12 17:52:42,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:52:42,103 INFO L85 PathProgramCache]: Analyzing trace with hash 178774164, now seen corresponding path program 1 times [2024-11-12 17:52:42,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:52:42,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188401577] [2024-11-12 17:52:42,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:52:42,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:52:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:52:42,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1973603772] [2024-11-12 17:52:42,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:52:42,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:52:42,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:52:42,143 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) [2024-11-12 17:52:42,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 17:52:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 17:52:42,231 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 17:52:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 17:52:42,265 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 17:52:42,265 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 17:52:42,266 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-11-12 17:52:42,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-11-12 17:52:42,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2024-11-12 17:52:42,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2024-11-12 17:52:42,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2024-11-12 17:52:42,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2024-11-12 17:52:42,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2024-11-12 17:52:42,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2024-11-12 17:52:42,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-11-12 17:52:42,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-11-12 17:52:42,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2024-11-12 17:52:42,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2024-11-12 17:52:42,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-11-12 17:52:42,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-11-12 17:52:42,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-11-12 17:52:42,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-11-12 17:52:42,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 17:52:42,471 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 [2024-11-12 17:52:42,474 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-12 17:52:42,504 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 17:52:42,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 05:52:42 BoogieIcfgContainer [2024-11-12 17:52:42,508 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 17:52:42,510 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 17:52:42,510 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 17:52:42,510 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 17:52:42,510 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:52:41" (3/4) ... [2024-11-12 17:52:42,512 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-12 17:52:42,513 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 17:52:42,514 INFO L158 Benchmark]: Toolchain (without parser) took 1635.09ms. Allocated memory was 136.3MB in the beginning and 190.8MB in the end (delta: 54.5MB). Free memory was 66.0MB in the beginning and 92.1MB in the end (delta: -26.1MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2024-11-12 17:52:42,514 INFO L158 Benchmark]: CDTParser took 1.59ms. Allocated memory is still 136.3MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 17:52:42,515 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.86ms. Allocated memory was 136.3MB in the beginning and 190.8MB in the end (delta: 54.5MB). Free memory was 65.8MB in the beginning and 156.2MB in the end (delta: -90.4MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2024-11-12 17:52:42,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.98ms. Allocated memory is still 190.8MB. Free memory was 156.2MB in the beginning and 155.3MB in the end (delta: 933.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 17:52:42,516 INFO L158 Benchmark]: Boogie Preprocessor took 37.70ms. Allocated memory is still 190.8MB. Free memory was 155.3MB in the beginning and 153.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 17:52:42,519 INFO L158 Benchmark]: RCFGBuilder took 434.30ms. Allocated memory is still 190.8MB. Free memory was 153.1MB in the beginning and 134.0MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-12 17:52:42,519 INFO L158 Benchmark]: TraceAbstraction took 815.60ms. Allocated memory is still 190.8MB. Free memory was 133.1MB in the beginning and 92.1MB in the end (delta: 41.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-12 17:52:42,519 INFO L158 Benchmark]: Witness Printer took 3.91ms. Allocated memory is still 190.8MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 17:52:42,521 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.59ms. Allocated memory is still 136.3MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.86ms. Allocated memory was 136.3MB in the beginning and 190.8MB in the end (delta: 54.5MB). Free memory was 65.8MB in the beginning and 156.2MB in the end (delta: -90.4MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.98ms. Allocated memory is still 190.8MB. Free memory was 156.2MB in the beginning and 155.3MB in the end (delta: 933.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.70ms. Allocated memory is still 190.8MB. Free memory was 155.3MB in the beginning and 153.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.30ms. Allocated memory is still 190.8MB. Free memory was 153.1MB in the beginning and 134.0MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 815.60ms. Allocated memory is still 190.8MB. Free memory was 133.1MB in the beginning and 92.1MB in the end (delta: 41.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 3.91ms. Allocated memory is still 190.8MB. Free memory is still 92.1MB. 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)={7:0}, \old(b)={6:0}, \old(x)={5:0}, \old(y)={8:0}, \old(z)={4:0}] [L54] \read(*z) [L54] EXPR \read(*x) [L54] EXPR \read(*y) VAL [\old(a)={7:0}, \old(b)={6:0}, \old(x)={5:0}, \old(y)={8:0}, \old(z)={4:0}, a={7:0}, b={6:0}, x={5:0}, y={8:0}, z={4:0}] [L54] (*x) * (*y) VAL [\old(a)={7:0}, \old(b)={6:0}, \old(x)={5:0}, \old(y)={8:0}, \old(z)={4:0}, a={7:0}, b={6:0}, x={5:0}, y={8:0}, z={4:0}] - 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, 59 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 61 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 61 mSDtfsCounter, 0 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=59occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 [2024-11-12 17:52:42,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../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-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 17:52:44,729 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 17:52:44,789 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2024-11-12 17:52:44,795 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 17:52:44,796 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 17:52:44,823 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 17:52:44,824 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 17:52:44,824 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 17:52:44,824 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 17:52:44,825 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 17:52:44,825 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 17:52:44,825 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 17:52:44,826 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 17:52:44,826 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 17:52:44,826 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 17:52:44,826 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 17:52:44,826 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 17:52:44,827 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 17:52:44,827 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 17:52:44,829 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 17:52:44,829 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 17:52:44,834 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 17:52:44,834 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 17:52:44,835 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 17:52:44,835 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-12 17:52:44,835 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 17:52:44,835 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 17:52:44,836 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-12 17:52:44,836 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 17:52:44,836 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 17:52:44,836 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 17:52:44,836 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 17:52:44,837 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 17:52:44,837 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 17:52:44,837 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 17:52:44,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 17:52:44,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:52:44,838 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 17:52:44,838 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 17:52:44,838 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 17:52:44,838 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-12 17:52:44,840 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-12 17:52:44,840 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 17:52:44,840 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 17:52:44,840 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 17:52:44,840 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 17:52:44,841 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7dff50a5c131f5f3e263636f30a459d7f3ec4f0fe901f92a5987676a99374c1 [2024-11-12 17:52:45,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 17:52:45,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 17:52:45,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 17:52:45,150 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 17:52:45,151 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 17:52:45,152 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2024-11-12 17:52:46,776 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 17:52:46,954 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 17:52:46,954 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2024-11-12 17:52:46,963 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec9d79d78/986cdc7f224d4254a21822622b90c188/FLAGdc6d79731 [2024-11-12 17:52:47,359 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec9d79d78/986cdc7f224d4254a21822622b90c188 [2024-11-12 17:52:47,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 17:52:47,363 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 17:52:47,364 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 17:52:47,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 17:52:47,368 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 17:52:47,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:52:47" (1/1) ... [2024-11-12 17:52:47,370 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a1146a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:47, skipping insertion in model container [2024-11-12 17:52:47,370 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:52:47" (1/1) ... [2024-11-12 17:52:47,390 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 17:52:47,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:52:47,577 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 17:52:47,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:52:47,632 INFO L204 MainTranslator]: Completed translation [2024-11-12 17:52:47,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:47 WrapperNode [2024-11-12 17:52:47,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 17:52:47,634 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 17:52:47,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 17:52:47,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 17:52:47,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:47" (1/1) ... [2024-11-12 17:52:47,647 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:47" (1/1) ... [2024-11-12 17:52:47,662 INFO L138 Inliner]: procedures = 19, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2024-11-12 17:52:47,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 17:52:47,663 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 17:52:47,663 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 17:52:47,663 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 17:52:47,672 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:47" (1/1) ... [2024-11-12 17:52:47,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:47" (1/1) ... [2024-11-12 17:52:47,675 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:47" (1/1) ... [2024-11-12 17:52:47,691 INFO L175 MemorySlicer]: Split 29 memory accesses to 6 slices as follows [2, 5, 8, 5, 4, 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, 2, 3, 1, 1, 2]. [2024-11-12 17:52:47,692 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:47" (1/1) ... [2024-11-12 17:52:47,692 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:47" (1/1) ... [2024-11-12 17:52:47,703 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:47" (1/1) ... [2024-11-12 17:52:47,704 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:47" (1/1) ... [2024-11-12 17:52:47,706 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:47" (1/1) ... [2024-11-12 17:52:47,707 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:47" (1/1) ... [2024-11-12 17:52:47,710 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 17:52:47,713 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 17:52:47,714 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 17:52:47,714 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 17:52:47,714 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:47" (1/1) ... [2024-11-12 17:52:47,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:52:47,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:52:47,744 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) [2024-11-12 17:52:47,747 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 [2024-11-12 17:52:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 17:52:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-12 17:52:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-12 17:52:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-12 17:52:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-12 17:52:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-12 17:52:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-12 17:52:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 17:52:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-12 17:52:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-12 17:52:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-12 17:52:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-12 17:52:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-12 17:52:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-12 17:52:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 17:52:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 17:52:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 17:52:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 17:52:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_40_0 [2024-11-12 17:52:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_40_0 [2024-11-12 17:52:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 17:52:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-12 17:52:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-12 17:52:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-12 17:52:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-12 17:52:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-12 17:52:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-12 17:52:47,873 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 17:52:47,875 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 17:52:49,233 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2024-11-12 17:52:49,233 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 17:52:49,258 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 17:52:49,258 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 17:52:49,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:52:49 BoogieIcfgContainer [2024-11-12 17:52:49,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 17:52:49,260 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 17:52:49,260 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 17:52:49,263 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 17:52:49,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:52:47" (1/3) ... [2024-11-12 17:52:49,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34260218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:52:49, skipping insertion in model container [2024-11-12 17:52:49,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:52:47" (2/3) ... [2024-11-12 17:52:49,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34260218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:52:49, skipping insertion in model container [2024-11-12 17:52:49,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:52:49" (3/3) ... [2024-11-12 17:52:49,266 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_prodbin.c [2024-11-12 17:52:49,283 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 17:52:49,283 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-12 17:52:49,341 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 17:52:49,346 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;@7988c33c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 17:52:49,346 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-12 17:52:49,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 53 states have internal predecessors, (57), 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) [2024-11-12 17:52:49,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-12 17:52:49,353 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:52:49,354 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:52:49,354 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)] === [2024-11-12 17:52:49,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:52:49,358 INFO L85 PathProgramCache]: Analyzing trace with hash 121515862, now seen corresponding path program 1 times [2024-11-12 17:52:49,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 17:52:49,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070056328] [2024-11-12 17:52:49,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:52:49,368 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 17:52:49,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 17:52:49,369 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) [2024-11-12 17:52:49,370 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 [2024-11-12 17:52:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:52:49,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-12 17:52:49,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:52:49,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:52:49,533 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:52:49,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 17:52:49,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070056328] [2024-11-12 17:52:49,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070056328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:52:49,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:52:49,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:52:49,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419128023] [2024-11-12 17:52:49,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:52:49,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 17:52:49,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 17:52:49,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 17:52:49,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 17:52:49,555 INFO L87 Difference]: Start difference. First operand has 59 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 53 states have internal predecessors, (57), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-12 17:52:49,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:52:49,571 INFO L93 Difference]: Finished difference Result 111 states and 129 transitions. [2024-11-12 17:52:49,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 17:52:49,574 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 8 [2024-11-12 17:52:49,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:52:49,581 INFO L225 Difference]: With dead ends: 111 [2024-11-12 17:52:49,581 INFO L226 Difference]: Without dead ends: 49 [2024-11-12 17:52:49,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 17:52:49,588 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:52:49,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:52:49,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-12 17:52:49,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-12 17:52:49,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 44 states have internal predecessors, (45), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-12 17:52:49,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2024-11-12 17:52:49,622 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 8 [2024-11-12 17:52:49,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:52:49,623 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2024-11-12 17:52:49,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-12 17:52:49,623 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2024-11-12 17:52:49,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-12 17:52:49,624 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:52:49,624 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:52:49,632 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 [2024-11-12 17:52:49,828 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 [2024-11-12 17:52:49,829 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)] === [2024-11-12 17:52:49,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:52:49,830 INFO L85 PathProgramCache]: Analyzing trace with hash 178774164, now seen corresponding path program 1 times [2024-11-12 17:52:49,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 17:52:49,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176709617] [2024-11-12 17:52:49,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:52:49,830 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 17:52:49,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 17:52:49,833 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) [2024-11-12 17:52:49,929 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 [2024-11-12 17:52:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 17:52:50,076 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 17:52:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 17:52:50,200 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-12 17:52:50,200 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 17:52:50,201 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-11-12 17:52:50,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-11-12 17:52:50,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2024-11-12 17:52:50,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2024-11-12 17:52:50,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2024-11-12 17:52:50,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2024-11-12 17:52:50,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2024-11-12 17:52:50,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2024-11-12 17:52:50,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-11-12 17:52:50,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-11-12 17:52:50,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2024-11-12 17:52:50,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2024-11-12 17:52:50,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-11-12 17:52:50,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-11-12 17:52:50,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-11-12 17:52:50,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-11-12 17:52:50,213 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 (3)] Ended with exit code 0 [2024-11-12 17:52:50,406 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 [2024-11-12 17:52:50,410 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-12 17:52:50,427 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 17:52:50,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 05:52:50 BoogieIcfgContainer [2024-11-12 17:52:50,430 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 17:52:50,430 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 17:52:50,430 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 17:52:50,430 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 17:52:50,431 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:52:49" (3/4) ... [2024-11-12 17:52:50,431 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-12 17:52:50,461 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 17:52:50,461 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 17:52:50,462 INFO L158 Benchmark]: Toolchain (without parser) took 3098.68ms. Allocated memory was 62.9MB in the beginning and 94.4MB in the end (delta: 31.5MB). Free memory was 38.5MB in the beginning and 38.6MB in the end (delta: -128.9kB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2024-11-12 17:52:50,462 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory was 39.3MB in the beginning and 39.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 17:52:50,462 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.40ms. Allocated memory was 62.9MB in the beginning and 94.4MB in the end (delta: 31.5MB). Free memory was 38.2MB in the beginning and 74.1MB in the end (delta: -35.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-12 17:52:50,462 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.38ms. Allocated memory is still 94.4MB. Free memory was 73.7MB in the beginning and 72.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 17:52:50,463 INFO L158 Benchmark]: Boogie Preprocessor took 50.14ms. Allocated memory is still 94.4MB. Free memory was 72.0MB in the beginning and 69.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 17:52:50,463 INFO L158 Benchmark]: RCFGBuilder took 1545.12ms. Allocated memory is still 94.4MB. Free memory was 69.6MB in the beginning and 49.7MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-12 17:52:50,463 INFO L158 Benchmark]: TraceAbstraction took 1169.53ms. Allocated memory is still 94.4MB. Free memory was 49.0MB in the beginning and 40.7MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-12 17:52:50,463 INFO L158 Benchmark]: Witness Printer took 31.00ms. Allocated memory is still 94.4MB. Free memory was 40.7MB in the beginning and 38.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 17:52:50,465 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 62.9MB. Free memory was 39.3MB in the beginning and 39.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.40ms. Allocated memory was 62.9MB in the beginning and 94.4MB in the end (delta: 31.5MB). Free memory was 38.2MB in the beginning and 74.1MB in the end (delta: -35.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.38ms. Allocated memory is still 94.4MB. Free memory was 73.7MB in the beginning and 72.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.14ms. Allocated memory is still 94.4MB. Free memory was 72.0MB in the beginning and 69.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1545.12ms. Allocated memory is still 94.4MB. Free memory was 69.6MB in the beginning and 49.7MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1169.53ms. Allocated memory is still 94.4MB. Free memory was 49.0MB in the beginning and 40.7MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 31.00ms. Allocated memory is still 94.4MB. Free memory was 40.7MB in the beginning and 38.6MB 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)={15:0}, \old(b)={5:0}, \old(x)={4:0}, \old(y)={7:0}, \old(z)={6:0}] [L54] \read(*z) [L54] EXPR \read(*x) [L54] EXPR \read(*y) VAL [\old(a)={15:0}, \old(b)={5:0}, \old(x)={4:0}, \old(y)={7:0}, \old(z)={6:0}, a={15:0}, b={5:0}, x={4:0}, y={7:0}, z={6:0}] [L54] (*x) * (*y) VAL [\old(a)={15:0}, \old(b)={5:0}, \old(x)={4:0}, \old(y)={7:0}, \old(z)={6:0}, a={15:0}, b={5:0}, x={4:0}, y={7:0}, z={6:0}] - 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, 59 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 58 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred 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, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 94 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! [2024-11-12 17:52:50,491 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)