./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1032d.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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/float-newlib/double_req_bl_1032d.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe21f92d149d9e0056822eb7bda6d756c9c1bed4285c287108aa0b8294aaabc8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 20:43:53,867 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 20:43:53,921 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 20:43:53,926 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 20:43:53,926 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 20:43:53,949 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 20:43:53,950 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 20:43:53,950 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 20:43:53,951 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 20:43:53,951 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 20:43:53,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 20:43:53,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 20:43:53,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 20:43:53,954 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 20:43:53,954 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 20:43:53,955 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 20:43:53,955 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 20:43:53,955 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 20:43:53,956 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 20:43:53,956 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 20:43:53,956 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 20:43:53,961 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 20:43:53,962 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 20:43:53,962 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 20:43:53,962 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 20:43:53,962 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 20:43:53,962 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 20:43:53,963 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 20:43:53,963 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 20:43:53,963 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 20:43:53,963 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 20:43:53,963 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 20:43:53,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 20:43:53,964 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 20:43:53,964 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 20:43:53,964 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 20:43:53,964 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 20:43:53,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 20:43:53,964 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 20:43:53,965 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 20:43:53,965 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 20:43:53,966 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 20:43:53,967 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe21f92d149d9e0056822eb7bda6d756c9c1bed4285c287108aa0b8294aaabc8 [2024-11-09 20:43:54,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 20:43:54,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 20:43:54,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 20:43:54,161 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 20:43:54,161 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 20:43:54,162 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1032d.c [2024-11-09 20:43:55,420 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 20:43:55,575 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 20:43:55,575 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1032d.c [2024-11-09 20:43:55,581 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1317916fd/3e6985e6175f416a893328d2e1842645/FLAG4b7734dbf [2024-11-09 20:43:55,593 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1317916fd/3e6985e6175f416a893328d2e1842645 [2024-11-09 20:43:55,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 20:43:55,597 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 20:43:55,600 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 20:43:55,600 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 20:43:55,604 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 20:43:55,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:43:55" (1/1) ... [2024-11-09 20:43:55,605 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d8c98b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:43:55, skipping insertion in model container [2024-11-09 20:43:55,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:43:55" (1/1) ... [2024-11-09 20:43:55,623 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 20:43:55,786 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1032d.c[2356,2369] [2024-11-09 20:43:55,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 20:43:55,795 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 20:43:55,819 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1032d.c[2356,2369] [2024-11-09 20:43:55,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 20:43:55,832 INFO L204 MainTranslator]: Completed translation [2024-11-09 20:43:55,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:43:55 WrapperNode [2024-11-09 20:43:55,832 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 20:43:55,833 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 20:43:55,833 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 20:43:55,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 20:43:55,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:43:55" (1/1) ... [2024-11-09 20:43:55,845 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:43:55" (1/1) ... [2024-11-09 20:43:55,865 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 207 [2024-11-09 20:43:55,865 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 20:43:55,866 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 20:43:55,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 20:43:55,866 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 20:43:55,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:43:55" (1/1) ... [2024-11-09 20:43:55,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:43:55" (1/1) ... [2024-11-09 20:43:55,877 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:43:55" (1/1) ... [2024-11-09 20:43:55,895 INFO L175 MemorySlicer]: Split 11 memory accesses to 4 slices as follows [2, 3, 3, 3]. 27 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 2]. [2024-11-09 20:43:55,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:43:55" (1/1) ... [2024-11-09 20:43:55,895 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:43:55" (1/1) ... [2024-11-09 20:43:55,906 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:43:55" (1/1) ... [2024-11-09 20:43:55,906 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:43:55" (1/1) ... [2024-11-09 20:43:55,912 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:43:55" (1/1) ... [2024-11-09 20:43:55,913 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:43:55" (1/1) ... [2024-11-09 20:43:55,917 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 20:43:55,918 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 20:43:55,918 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 20:43:55,918 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 20:43:55,919 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:43:55" (1/1) ... [2024-11-09 20:43:55,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 20:43:55,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 20:43:55,959 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) [2024-11-09 20:43:55,962 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 [2024-11-09 20:43:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 20:43:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 20:43:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 20:43:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 20:43:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 20:43:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 20:43:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-09 20:43:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-09 20:43:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-09 20:43:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-09 20:43:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 20:43:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 20:43:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 20:43:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 20:43:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-09 20:43:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-09 20:43:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-09 20:43:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-09 20:43:56,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 20:43:56,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 20:43:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 20:43:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 20:43:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 20:43:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 20:43:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 20:43:56,133 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 20:43:56,135 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 20:43:56,393 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L77: havoc isinf_double_#t~bitwise21#1; [2024-11-09 20:43:56,409 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-09 20:43:56,409 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 20:43:56,455 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 20:43:56,456 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 20:43:56,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:43:56 BoogieIcfgContainer [2024-11-09 20:43:56,456 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 20:43:56,458 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 20:43:56,458 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 20:43:56,461 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 20:43:56,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:43:55" (1/3) ... [2024-11-09 20:43:56,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1634fe3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:43:56, skipping insertion in model container [2024-11-09 20:43:56,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:43:55" (2/3) ... [2024-11-09 20:43:56,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1634fe3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:43:56, skipping insertion in model container [2024-11-09 20:43:56,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:43:56" (3/3) ... [2024-11-09 20:43:56,465 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032d.c [2024-11-09 20:43:56,478 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 20:43:56,479 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 20:43:56,524 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 20:43:56,529 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2b41f8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 20:43:56,529 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 20:43:56,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 72 states have (on average 1.5277777777777777) internal successors, (110), 73 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:43:56,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 20:43:56,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:43:56,538 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:43:56,539 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:43:56,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:43:56,543 INFO L85 PathProgramCache]: Analyzing trace with hash -924558980, now seen corresponding path program 1 times [2024-11-09 20:43:56,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:43:56,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006662915] [2024-11-09 20:43:56,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:43:56,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:43:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:43:56,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:43:56,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:43:56,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006662915] [2024-11-09 20:43:56,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006662915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:43:56,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:43:56,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 20:43:56,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726679189] [2024-11-09 20:43:56,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:43:56,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 20:43:56,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:43:56,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 20:43:56,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 20:43:56,688 INFO L87 Difference]: Start difference. First operand has 74 states, 72 states have (on average 1.5277777777777777) internal successors, (110), 73 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:43:56,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:43:56,719 INFO L93 Difference]: Finished difference Result 145 states and 217 transitions. [2024-11-09 20:43:56,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 20:43:56,722 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-09 20:43:56,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:43:56,729 INFO L225 Difference]: With dead ends: 145 [2024-11-09 20:43:56,729 INFO L226 Difference]: Without dead ends: 70 [2024-11-09 20:43:56,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 20:43:56,733 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 20:43:56,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 20:43:56,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-09 20:43:56,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-11-09 20:43:56,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.4202898550724639) internal successors, (98), 69 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:43:56,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 98 transitions. [2024-11-09 20:43:56,760 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 98 transitions. Word has length 19 [2024-11-09 20:43:56,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:43:56,760 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 98 transitions. [2024-11-09 20:43:56,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:43:56,760 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 98 transitions. [2024-11-09 20:43:56,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 20:43:56,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:43:56,762 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:43:56,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 20:43:56,762 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:43:56,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:43:56,763 INFO L85 PathProgramCache]: Analyzing trace with hash 54470151, now seen corresponding path program 1 times [2024-11-09 20:43:56,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:43:56,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986513767] [2024-11-09 20:43:56,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:43:56,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:43:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:43:56,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:43:56,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:43:56,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986513767] [2024-11-09 20:43:56,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986513767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:43:56,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:43:56,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 20:43:56,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419343925] [2024-11-09 20:43:56,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:43:56,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 20:43:56,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:43:56,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 20:43:56,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 20:43:56,955 INFO L87 Difference]: Start difference. First operand 70 states and 98 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:43:57,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:43:57,025 INFO L93 Difference]: Finished difference Result 133 states and 187 transitions. [2024-11-09 20:43:57,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 20:43:57,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-09 20:43:57,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:43:57,027 INFO L225 Difference]: With dead ends: 133 [2024-11-09 20:43:57,027 INFO L226 Difference]: Without dead ends: 74 [2024-11-09 20:43:57,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 20:43:57,028 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 2 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 20:43:57,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 222 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 20:43:57,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-09 20:43:57,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-09 20:43:57,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.3972602739726028) internal successors, (102), 73 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:43:57,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2024-11-09 20:43:57,035 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 102 transitions. Word has length 21 [2024-11-09 20:43:57,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:43:57,035 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 102 transitions. [2024-11-09 20:43:57,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:43:57,035 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 102 transitions. [2024-11-09 20:43:57,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 20:43:57,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:43:57,036 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:43:57,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 20:43:57,036 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:43:57,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:43:57,037 INFO L85 PathProgramCache]: Analyzing trace with hash 952489158, now seen corresponding path program 1 times [2024-11-09 20:43:57,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:43:57,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470839194] [2024-11-09 20:43:57,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:43:57,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:43:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:43:57,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:43:57,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:43:57,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470839194] [2024-11-09 20:43:57,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470839194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:43:57,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:43:57,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 20:43:57,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388456801] [2024-11-09 20:43:57,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:43:57,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 20:43:57,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:43:57,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 20:43:57,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 20:43:57,305 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:43:57,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:43:57,373 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2024-11-09 20:43:57,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 20:43:57,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-09 20:43:57,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:43:57,374 INFO L225 Difference]: With dead ends: 83 [2024-11-09 20:43:57,374 INFO L226 Difference]: Without dead ends: 78 [2024-11-09 20:43:57,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 20:43:57,375 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 2 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 20:43:57,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 233 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 20:43:57,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-09 20:43:57,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 77. [2024-11-09 20:43:57,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.381578947368421) internal successors, (105), 76 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:43:57,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 105 transitions. [2024-11-09 20:43:57,386 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 105 transitions. Word has length 22 [2024-11-09 20:43:57,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:43:57,386 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 105 transitions. [2024-11-09 20:43:57,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:43:57,386 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 105 transitions. [2024-11-09 20:43:57,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 20:43:57,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:43:57,387 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:43:57,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 20:43:57,387 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:43:57,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:43:57,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1534307991, now seen corresponding path program 1 times [2024-11-09 20:43:57,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:43:57,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609370420] [2024-11-09 20:43:57,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:43:57,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:43:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:43:57,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:43:57,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:43:57,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609370420] [2024-11-09 20:43:57,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609370420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:43:57,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:43:57,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 20:43:57,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415679122] [2024-11-09 20:43:57,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:43:57,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 20:43:57,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:43:57,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 20:43:57,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 20:43:57,576 INFO L87 Difference]: Start difference. First operand 77 states and 105 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:43:57,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:43:57,635 INFO L93 Difference]: Finished difference Result 82 states and 109 transitions. [2024-11-09 20:43:57,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 20:43:57,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-09 20:43:57,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:43:57,636 INFO L225 Difference]: With dead ends: 82 [2024-11-09 20:43:57,636 INFO L226 Difference]: Without dead ends: 77 [2024-11-09 20:43:57,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 20:43:57,638 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 20:43:57,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 326 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 20:43:57,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-09 20:43:57,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 74. [2024-11-09 20:43:57,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.36986301369863) internal successors, (100), 73 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:43:57,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 100 transitions. [2024-11-09 20:43:57,645 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 100 transitions. Word has length 23 [2024-11-09 20:43:57,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:43:57,646 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 100 transitions. [2024-11-09 20:43:57,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:43:57,646 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 100 transitions. [2024-11-09 20:43:57,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 20:43:57,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:43:57,649 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:43:57,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 20:43:57,650 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:43:57,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:43:57,650 INFO L85 PathProgramCache]: Analyzing trace with hash 915366592, now seen corresponding path program 1 times [2024-11-09 20:43:57,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:43:57,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669955922] [2024-11-09 20:43:57,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:43:57,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:43:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 20:43:57,685 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 20:43:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 20:43:57,740 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 20:43:57,741 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 20:43:57,742 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 20:43:57,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 20:43:57,745 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-09 20:43:57,765 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 20:43:57,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 08:43:57 BoogieIcfgContainer [2024-11-09 20:43:57,770 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 20:43:57,771 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 20:43:57,771 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 20:43:57,771 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 20:43:57,771 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:43:56" (3/4) ... [2024-11-09 20:43:57,773 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-09 20:43:57,776 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 20:43:57,777 INFO L158 Benchmark]: Toolchain (without parser) took 2179.77ms. Allocated memory is still 184.5MB. Free memory was 115.8MB in the beginning and 84.2MB in the end (delta: 31.5MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2024-11-09 20:43:57,777 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 141.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 20:43:57,777 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.44ms. Allocated memory is still 184.5MB. Free memory was 115.5MB in the beginning and 102.0MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 20:43:57,778 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.26ms. Allocated memory is still 184.5MB. Free memory was 102.0MB in the beginning and 99.6MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 20:43:57,778 INFO L158 Benchmark]: Boogie Preprocessor took 51.09ms. Allocated memory is still 184.5MB. Free memory was 99.6MB in the beginning and 96.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 20:43:57,778 INFO L158 Benchmark]: IcfgBuilder took 538.31ms. Allocated memory is still 184.5MB. Free memory was 96.9MB in the beginning and 132.3MB in the end (delta: -35.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-11-09 20:43:57,778 INFO L158 Benchmark]: TraceAbstraction took 1312.26ms. Allocated memory is still 184.5MB. Free memory was 132.3MB in the beginning and 84.2MB in the end (delta: 48.1MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. [2024-11-09 20:43:57,781 INFO L158 Benchmark]: Witness Printer took 5.82ms. Allocated memory is still 184.5MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 20:43:57,782 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 141.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.44ms. Allocated memory is still 184.5MB. Free memory was 115.5MB in the beginning and 102.0MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.26ms. Allocated memory is still 184.5MB. Free memory was 102.0MB in the beginning and 99.6MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.09ms. Allocated memory is still 184.5MB. Free memory was 99.6MB in the beginning and 96.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 538.31ms. Allocated memory is still 184.5MB. Free memory was 96.9MB in the beginning and 132.3MB in the end (delta: -35.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1312.26ms. Allocated memory is still 184.5MB. Free memory was 132.3MB in the beginning and 84.2MB in the end (delta: 48.1MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. * Witness Printer took 5.82ms. Allocated memory is still 184.5MB. Free memory is still 84.2MB. 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: 93]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 77, overapproximation of someBinaryArithmeticDOUBLEoperation at line 42. Possible FailurePath: [L88] double x = -1.0 / 0.0; [L89] CALL, EXPR round_double(x) [L17] __int32_t msw, exponent_less_1023; [L18] __uint32_t lsw; VAL [x=6441402382] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (msw) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (lsw) = ew_u.parts.lsw [L24] COND FALSE !(0) VAL [lsw=6441402369, msw=2146435072, x=6441402382] [L25] EXPR msw & 0x7ff00000 VAL [lsw=6441402369, msw=2146435072, x=6441402382] [L25] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L26] COND FALSE !(exponent_less_1023 < 20) VAL [exponent_less_1023=1024, lsw=6441402369, msw=2146435072, x=6441402382] [L40] COND TRUE exponent_less_1023 > 51 VAL [exponent_less_1023=1024, lsw=6441402369, msw=2146435072, x=6441402382] [L41] COND TRUE exponent_less_1023 == 1024 [L42] return x + x; VAL [lsw=6441402369, msw=2146435072, x=6441402382] [L89] RET, EXPR round_double(x) [L89] double res = round_double(x); [L92] CALL, EXPR isinf_double(res) [L67] __int32_t hx, lx; VAL [x=6441402383] [L69] ieee_double_shape_type ew_u; [L70] ew_u.value = (x) [L71] EXPR ew_u.parts.msw [L71] (hx) = ew_u.parts.msw [L72] EXPR ew_u.parts.lsw [L72] (lx) = ew_u.parts.lsw [L73] COND FALSE !(0) VAL [hx=-2147483648, lx=0, x=6441402383] [L74] hx &= 0x7fffffff VAL [hx=0, lx=0, x=6441402383] [L75] EXPR lx | (-lx) VAL [hx=0, x=6441402383] [L75] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L76] hx = 0x7ff00000 - hx VAL [hx=2146435072, x=6441402383] [L77] EXPR hx | (-hx) VAL [x=6441402383] [L77] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L92] RET, EXPR isinf_double(res) [L92] COND TRUE !isinf_double(res) [L93] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 869 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 535 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 208 IncrementalHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 334 mSDtfsCounter, 208 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=3, InterpolantAutomatonStates: 15, 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 117 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 [2024-11-09 20:43:57,805 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/float-newlib/double_req_bl_1032d.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe21f92d149d9e0056822eb7bda6d756c9c1bed4285c287108aa0b8294aaabc8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 20:43:59,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 20:43:59,752 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-09 20:43:59,757 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 20:43:59,757 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 20:43:59,787 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 20:43:59,790 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 20:43:59,791 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 20:43:59,791 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 20:43:59,791 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 20:43:59,791 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 20:43:59,792 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 20:43:59,792 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 20:43:59,792 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 20:43:59,792 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 20:43:59,793 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 20:43:59,793 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 20:43:59,793 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 20:43:59,793 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 20:43:59,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 20:43:59,794 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 20:43:59,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 20:43:59,797 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 20:43:59,797 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 20:43:59,798 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 20:43:59,799 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 20:43:59,799 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 20:43:59,799 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 20:43:59,799 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 20:43:59,800 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 20:43:59,800 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 20:43:59,801 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 20:43:59,801 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 20:43:59,802 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 20:43:59,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 20:43:59,802 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 20:43:59,802 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 20:43:59,803 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 20:43:59,803 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-09 20:43:59,803 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 20:43:59,804 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 20:43:59,804 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 20:43:59,804 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 20:43:59,805 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 20:43:59,805 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe21f92d149d9e0056822eb7bda6d756c9c1bed4285c287108aa0b8294aaabc8 [2024-11-09 20:44:00,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 20:44:00,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 20:44:00,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 20:44:00,091 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 20:44:00,091 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 20:44:00,092 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1032d.c [2024-11-09 20:44:01,507 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 20:44:01,676 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 20:44:01,677 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1032d.c [2024-11-09 20:44:01,683 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5d53f2db/f1768a137e64456088fc826a19507832/FLAG51ce41756 [2024-11-09 20:44:01,696 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5d53f2db/f1768a137e64456088fc826a19507832 [2024-11-09 20:44:01,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 20:44:01,699 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 20:44:01,701 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 20:44:01,701 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 20:44:01,705 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 20:44:01,706 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:44:01" (1/1) ... [2024-11-09 20:44:01,707 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5566319a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:01, skipping insertion in model container [2024-11-09 20:44:01,707 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:44:01" (1/1) ... [2024-11-09 20:44:01,727 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 20:44:01,894 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1032d.c[2356,2369] [2024-11-09 20:44:01,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 20:44:01,916 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 20:44:01,949 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1032d.c[2356,2369] [2024-11-09 20:44:01,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 20:44:01,967 INFO L204 MainTranslator]: Completed translation [2024-11-09 20:44:01,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:01 WrapperNode [2024-11-09 20:44:01,968 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 20:44:01,969 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 20:44:01,969 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 20:44:01,969 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 20:44:01,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:01" (1/1) ... [2024-11-09 20:44:01,985 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:01" (1/1) ... [2024-11-09 20:44:02,005 INFO L138 Inliner]: procedures = 19, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 109 [2024-11-09 20:44:02,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 20:44:02,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 20:44:02,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 20:44:02,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 20:44:02,017 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:01" (1/1) ... [2024-11-09 20:44:02,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:01" (1/1) ... [2024-11-09 20:44:02,023 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:01" (1/1) ... [2024-11-09 20:44:02,046 INFO L175 MemorySlicer]: Split 11 memory accesses to 4 slices as follows [2, 3, 3, 3]. 27 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 2, 1, 1]. [2024-11-09 20:44:02,048 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:01" (1/1) ... [2024-11-09 20:44:02,049 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:01" (1/1) ... [2024-11-09 20:44:02,059 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:01" (1/1) ... [2024-11-09 20:44:02,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:01" (1/1) ... [2024-11-09 20:44:02,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:01" (1/1) ... [2024-11-09 20:44:02,068 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:01" (1/1) ... [2024-11-09 20:44:02,073 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 20:44:02,074 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 20:44:02,078 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 20:44:02,078 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 20:44:02,079 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:01" (1/1) ... [2024-11-09 20:44:02,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 20:44:02,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 20:44:02,113 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) [2024-11-09 20:44:02,149 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 [2024-11-09 20:44:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 20:44:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-09 20:44:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-09 20:44:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-09 20:44:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-09 20:44:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-09 20:44:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-09 20:44:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-09 20:44:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-09 20:44:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-09 20:44:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-09 20:44:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-09 20:44:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-09 20:44:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 20:44:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-09 20:44:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-09 20:44:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-09 20:44:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-09 20:44:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 20:44:02,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 20:44:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-09 20:44:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-09 20:44:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-09 20:44:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-09 20:44:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 20:44:02,263 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 20:44:02,264 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 20:44:02,526 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-09 20:44:02,526 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 20:44:02,540 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 20:44:02,541 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 20:44:02,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:44:02 BoogieIcfgContainer [2024-11-09 20:44:02,542 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 20:44:02,544 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 20:44:02,544 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 20:44:02,546 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 20:44:02,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:44:01" (1/3) ... [2024-11-09 20:44:02,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370112d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:44:02, skipping insertion in model container [2024-11-09 20:44:02,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:01" (2/3) ... [2024-11-09 20:44:02,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370112d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:44:02, skipping insertion in model container [2024-11-09 20:44:02,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:44:02" (3/3) ... [2024-11-09 20:44:02,550 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032d.c [2024-11-09 20:44:02,570 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 20:44:02,571 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 20:44:02,622 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 20:44:02,629 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;@421063bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 20:44:02,629 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 20:44:02,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:44:02,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 20:44:02,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:44:02,638 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:44:02,638 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:44:02,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:44:02,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1443334669, now seen corresponding path program 1 times [2024-11-09 20:44:02,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 20:44:02,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847937938] [2024-11-09 20:44:02,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:44:02,652 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 [2024-11-09 20:44:02,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 20:44:02,658 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) [2024-11-09 20:44:02,663 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 [2024-11-09 20:44:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:44:02,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 20:44:02,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 20:44:02,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:44:02,778 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 20:44:02,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 20:44:02,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847937938] [2024-11-09 20:44:02,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [847937938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:44:02,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:44:02,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 20:44:02,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698316091] [2024-11-09 20:44:02,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:44:02,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 20:44:02,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 20:44:02,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 20:44:02,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 20:44:02,802 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:44:02,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:44:02,815 INFO L93 Difference]: Finished difference Result 57 states and 85 transitions. [2024-11-09 20:44:02,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 20:44:02,817 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-09 20:44:02,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:44:02,823 INFO L225 Difference]: With dead ends: 57 [2024-11-09 20:44:02,823 INFO L226 Difference]: Without dead ends: 26 [2024-11-09 20:44:02,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 20:44:02,830 INFO L432 NwaCegarLoop]: 36 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, 36 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 [2024-11-09 20:44:02,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 20:44:02,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-09 20:44:02,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-09 20:44:02,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:44:02,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2024-11-09 20:44:02,859 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 13 [2024-11-09 20:44:02,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:44:02,859 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2024-11-09 20:44:02,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:44:02,860 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-11-09 20:44:02,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 20:44:02,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:44:02,861 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:44:02,866 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 [2024-11-09 20:44:03,065 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 [2024-11-09 20:44:03,066 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:44:03,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:44:03,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1023355469, now seen corresponding path program 1 times [2024-11-09 20:44:03,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 20:44:03,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823772096] [2024-11-09 20:44:03,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:44:03,067 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 [2024-11-09 20:44:03,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 20:44:03,070 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) [2024-11-09 20:44:03,093 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 [2024-11-09 20:44:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:44:03,199 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 20:44:03,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 20:44:03,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:44:03,422 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 20:44:03,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 20:44:03,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823772096] [2024-11-09 20:44:03,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [823772096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:44:03,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:44:03,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 20:44:03,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482723600] [2024-11-09 20:44:03,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:44:03,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 20:44:03,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 20:44:03,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 20:44:03,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 20:44:03,425 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:44:03,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:44:03,636 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2024-11-09 20:44:03,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 20:44:03,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-09 20:44:03,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:44:03,637 INFO L225 Difference]: With dead ends: 34 [2024-11-09 20:44:03,637 INFO L226 Difference]: Without dead ends: 16 [2024-11-09 20:44:03,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 20:44:03,638 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 11 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 20:44:03,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 32 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 20:44:03,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-09 20:44:03,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-09 20:44:03,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:44:03,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2024-11-09 20:44:03,644 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2024-11-09 20:44:03,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:44:03,645 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2024-11-09 20:44:03,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:44:03,645 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2024-11-09 20:44:03,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 20:44:03,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:44:03,646 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:44:03,652 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 [2024-11-09 20:44:03,850 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 [2024-11-09 20:44:03,851 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:44:03,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:44:03,852 INFO L85 PathProgramCache]: Analyzing trace with hash -630310597, now seen corresponding path program 1 times [2024-11-09 20:44:03,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 20:44:03,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454334423] [2024-11-09 20:44:03,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:44:03,852 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 [2024-11-09 20:44:03,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 20:44:03,859 INFO L229 MonitoredProcess]: Starting monitored process 4 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) [2024-11-09 20:44:03,860 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 (4)] Waiting until timeout for monitored process [2024-11-09 20:44:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:44:03,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 20:44:03,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 20:44:04,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:44:04,196 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 20:44:04,197 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 20:44:04,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454334423] [2024-11-09 20:44:04,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454334423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:44:04,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:44:04,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 20:44:04,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455705961] [2024-11-09 20:44:04,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:44:04,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 20:44:04,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 20:44:04,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 20:44:04,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-09 20:44:04,201 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:44:04,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:44:04,494 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2024-11-09 20:44:04,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 20:44:04,494 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-09 20:44:04,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:44:04,495 INFO L225 Difference]: With dead ends: 16 [2024-11-09 20:44:04,495 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 20:44:04,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-09 20:44:04,498 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 20:44:04,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 35 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 20:44:04,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 20:44:04,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 20:44:04,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:44:04,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 20:44:04,502 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2024-11-09 20:44:04,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:44:04,503 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 20:44:04,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:44:04,503 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 20:44:04,503 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 20:44:04,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 20:44:04,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-09 20:44:04,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /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 [2024-11-09 20:44:04,716 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-09 20:44:04,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 20:44:04,771 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 20:44:04,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 08:44:04 BoogieIcfgContainer [2024-11-09 20:44:04,792 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 20:44:04,792 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 20:44:04,792 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 20:44:04,792 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 20:44:04,793 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:44:02" (3/4) ... [2024-11-09 20:44:04,799 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 20:44:04,809 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2024-11-09 20:44:04,810 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-09 20:44:04,810 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 20:44:04,810 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 20:44:04,894 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 20:44:04,896 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 20:44:04,896 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 20:44:04,897 INFO L158 Benchmark]: Toolchain (without parser) took 3197.86ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 64.3MB in the beginning and 86.6MB in the end (delta: -22.3MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2024-11-09 20:44:04,897 INFO L158 Benchmark]: CDTParser took 0.87ms. Allocated memory is still 50.3MB. Free memory was 30.0MB in the beginning and 30.0MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 20:44:04,899 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.46ms. Allocated memory is still 96.5MB. Free memory was 64.0MB in the beginning and 49.7MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 20:44:04,899 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.43ms. Allocated memory is still 96.5MB. Free memory was 49.7MB in the beginning and 47.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 20:44:04,899 INFO L158 Benchmark]: Boogie Preprocessor took 65.88ms. Allocated memory is still 96.5MB. Free memory was 47.9MB in the beginning and 45.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 20:44:04,900 INFO L158 Benchmark]: IcfgBuilder took 467.82ms. Allocated memory is still 96.5MB. Free memory was 45.2MB in the beginning and 61.2MB in the end (delta: -16.0MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2024-11-09 20:44:04,900 INFO L158 Benchmark]: TraceAbstraction took 2247.85ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 60.5MB in the beginning and 91.9MB in the end (delta: -31.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 20:44:04,900 INFO L158 Benchmark]: Witness Printer took 104.44ms. Allocated memory is still 136.3MB. Free memory was 90.8MB in the beginning and 86.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 20:44:04,902 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87ms. Allocated memory is still 50.3MB. Free memory was 30.0MB in the beginning and 30.0MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.46ms. Allocated memory is still 96.5MB. Free memory was 64.0MB in the beginning and 49.7MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.43ms. Allocated memory is still 96.5MB. Free memory was 49.7MB in the beginning and 47.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.88ms. Allocated memory is still 96.5MB. Free memory was 47.9MB in the beginning and 45.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 467.82ms. Allocated memory is still 96.5MB. Free memory was 45.2MB in the beginning and 61.2MB in the end (delta: -16.0MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2247.85ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 60.5MB in the beginning and 91.9MB in the end (delta: -31.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 104.44ms. Allocated memory is still 136.3MB. Free memory was 90.8MB in the beginning and 86.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 93]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 103 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 51 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 52 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 8 QuantifiedInterpolants, 421 SizeOfPredicates, 8 NumberOfNonLiveVariables, 153 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 56]: Location Invariant Derived location invariant: null - InvariantResult [Line: 19]: Location Invariant Derived location invariant: null - InvariantResult [Line: 68]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-09 20:44:04,931 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 Result: TRUE