./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1122b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1122b.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 fdbce805aa8b4a64f30ef9c8f5d71e1c7a99dc3654784a3c18b27b22409bd2e9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 22:24:30,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 22:24:30,979 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 22:24:30,985 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 22:24:30,986 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 22:24:31,017 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 22:24:31,018 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 22:24:31,018 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 22:24:31,019 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 22:24:31,019 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 22:24:31,019 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 22:24:31,020 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 22:24:31,020 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 22:24:31,021 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 22:24:31,021 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 22:24:31,021 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 22:24:31,022 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 22:24:31,022 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 22:24:31,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 22:24:31,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 22:24:31,026 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 22:24:31,027 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 22:24:31,027 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 22:24:31,029 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 22:24:31,029 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 22:24:31,030 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 22:24:31,030 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 22:24:31,030 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 22:24:31,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 22:24:31,031 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 22:24:31,031 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 22:24:31,031 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 22:24:31,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 22:24:31,032 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 22:24:31,032 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 22:24:31,032 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 22:24:31,033 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 22:24:31,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 22:24:31,033 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 22:24:31,034 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 22:24:31,034 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 22:24:31,035 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 22:24:31,035 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdbce805aa8b4a64f30ef9c8f5d71e1c7a99dc3654784a3c18b27b22409bd2e9 [2024-10-23 22:24:31,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 22:24:31,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 22:24:31,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 22:24:31,344 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 22:24:31,345 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 22:24:31,346 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2024-10-23 22:24:32,711 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 22:24:32,929 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 22:24:32,930 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2024-10-23 22:24:32,941 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26d3e6b1f/aa94e5ac4e144df7a0d6886a47ad7819/FLAG0eaee6daf [2024-10-23 22:24:33,290 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26d3e6b1f/aa94e5ac4e144df7a0d6886a47ad7819 [2024-10-23 22:24:33,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 22:24:33,293 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 22:24:33,294 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 22:24:33,294 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 22:24:33,300 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 22:24:33,300 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:24:33" (1/1) ... [2024-10-23 22:24:33,301 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f5e0f65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:33, skipping insertion in model container [2024-10-23 22:24:33,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:24:33" (1/1) ... [2024-10-23 22:24:33,324 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 22:24:33,533 WARN L248 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_1122b.c[3907,3920] [2024-10-23 22:24:33,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 22:24:33,547 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 22:24:33,598 WARN L248 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_1122b.c[3907,3920] [2024-10-23 22:24:33,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 22:24:33,624 INFO L204 MainTranslator]: Completed translation [2024-10-23 22:24:33,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:33 WrapperNode [2024-10-23 22:24:33,625 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 22:24:33,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 22:24:33,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 22:24:33,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 22:24:33,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:33" (1/1) ... [2024-10-23 22:24:33,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:33" (1/1) ... [2024-10-23 22:24:33,690 INFO L138 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 442 [2024-10-23 22:24:33,691 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 22:24:33,691 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 22:24:33,692 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 22:24:33,692 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 22:24:33,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:33" (1/1) ... [2024-10-23 22:24:33,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:33" (1/1) ... [2024-10-23 22:24:33,707 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:33" (1/1) ... [2024-10-23 22:24:33,727 INFO L175 MemorySlicer]: Split 19 memory accesses to 6 slices as follows [2, 3, 3, 5, 3, 3]. 26 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 0, 2, 0, 0]. The 6 writes are split as follows [0, 2, 2, 0, 1, 1]. [2024-10-23 22:24:33,727 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:33" (1/1) ... [2024-10-23 22:24:33,728 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:33" (1/1) ... [2024-10-23 22:24:33,744 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:33" (1/1) ... [2024-10-23 22:24:33,755 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:33" (1/1) ... [2024-10-23 22:24:33,758 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:33" (1/1) ... [2024-10-23 22:24:33,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:33" (1/1) ... [2024-10-23 22:24:33,767 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 22:24:33,768 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 22:24:33,769 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 22:24:33,769 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 22:24:33,770 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:33" (1/1) ... [2024-10-23 22:24:33,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 22:24:33,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 22:24:33,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-23 22:24:33,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-23 22:24:33,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 22:24:33,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 22:24:33,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-23 22:24:33,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-23 22:24:33,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-23 22:24:33,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-23 22:24:33,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-23 22:24:33,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-23 22:24:33,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-23 22:24:33,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-23 22:24:33,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-23 22:24:33,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-23 22:24:33,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-23 22:24:33,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-23 22:24:33,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-23 22:24:33,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-23 22:24:33,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-23 22:24:33,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-23 22:24:33,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-23 22:24:33,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-23 22:24:33,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-23 22:24:33,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-23 22:24:33,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-23 22:24:33,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-23 22:24:33,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-23 22:24:33,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-23 22:24:33,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 22:24:33,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 22:24:33,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-23 22:24:33,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-23 22:24:33,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-23 22:24:33,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-23 22:24:33,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-23 22:24:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-23 22:24:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-23 22:24:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-23 22:24:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-23 22:24:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-23 22:24:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-23 22:24:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-10-23 22:24:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-23 22:24:34,004 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 22:24:34,005 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 22:24:34,648 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2024-10-23 22:24:34,649 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 22:24:34,683 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 22:24:34,684 INFO L314 CfgBuilder]: Removed 14 assume(true) statements. [2024-10-23 22:24:34,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:24:34 BoogieIcfgContainer [2024-10-23 22:24:34,684 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 22:24:34,688 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 22:24:34,688 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 22:24:34,691 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 22:24:34,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:24:33" (1/3) ... [2024-10-23 22:24:34,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe622b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:24:34, skipping insertion in model container [2024-10-23 22:24:34,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:33" (2/3) ... [2024-10-23 22:24:34,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe622b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:24:34, skipping insertion in model container [2024-10-23 22:24:34,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:24:34" (3/3) ... [2024-10-23 22:24:34,696 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122b.c [2024-10-23 22:24:34,712 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 22:24:34,713 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 22:24:34,777 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 22:24:34,783 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;@6a4c397e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 22:24:34,784 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 22:24:34,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 139 states have (on average 1.6402877697841727) internal successors, (228), 140 states have internal predecessors, (228), 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) [2024-10-23 22:24:34,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-23 22:24:34,798 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:24:34,798 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:24:34,799 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:24:34,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:24:34,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1484006034, now seen corresponding path program 1 times [2024-10-23 22:24:34,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 22:24:34,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902708247] [2024-10-23 22:24:34,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:24:34,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 22:24:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:24:34,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 22:24:34,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 22:24:34,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902708247] [2024-10-23 22:24:34,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902708247] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:24:34,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:24:34,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 22:24:34,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715684943] [2024-10-23 22:24:34,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:24:34,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 22:24:34,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 22:24:35,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 22:24:35,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 22:24:35,029 INFO L87 Difference]: Start difference. First operand has 141 states, 139 states have (on average 1.6402877697841727) internal successors, (228), 140 states have internal predecessors, (228), 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) [2024-10-23 22:24:35,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:24:35,082 INFO L93 Difference]: Finished difference Result 281 states and 455 transitions. [2024-10-23 22:24:35,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 22:24:35,084 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 [2024-10-23 22:24:35,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:24:35,096 INFO L225 Difference]: With dead ends: 281 [2024-10-23 22:24:35,097 INFO L226 Difference]: Without dead ends: 139 [2024-10-23 22:24:35,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 22:24:35,103 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 22:24:35,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 204 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 22:24:35,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-10-23 22:24:35,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-10-23 22:24:35,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 1.5144927536231885) internal successors, (209), 138 states have internal predecessors, (209), 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) [2024-10-23 22:24:35,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 209 transitions. [2024-10-23 22:24:35,145 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 209 transitions. Word has length 13 [2024-10-23 22:24:35,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:24:35,145 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 209 transitions. [2024-10-23 22:24:35,146 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) [2024-10-23 22:24:35,146 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 209 transitions. [2024-10-23 22:24:35,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-23 22:24:35,146 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:24:35,147 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:24:35,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 22:24:35,147 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:24:35,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:24:35,148 INFO L85 PathProgramCache]: Analyzing trace with hash -394219925, now seen corresponding path program 1 times [2024-10-23 22:24:35,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 22:24:35,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91709369] [2024-10-23 22:24:35,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:24:35,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 22:24:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-23 22:24:35,233 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-23 22:24:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-23 22:24:35,325 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-23 22:24:35,325 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-23 22:24:35,327 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 22:24:35,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 22:24:35,333 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-23 22:24:35,364 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 22:24:35,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:24:35 BoogieIcfgContainer [2024-10-23 22:24:35,370 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 22:24:35,371 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 22:24:35,371 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 22:24:35,371 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 22:24:35,372 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:24:34" (3/4) ... [2024-10-23 22:24:35,374 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-23 22:24:35,375 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 22:24:35,376 INFO L158 Benchmark]: Toolchain (without parser) took 2082.83ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 89.5MB in the beginning and 87.7MB in the end (delta: 1.8MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2024-10-23 22:24:35,377 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 144.7MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 22:24:35,377 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.86ms. Allocated memory is still 144.7MB. Free memory was 89.5MB in the beginning and 73.7MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-23 22:24:35,378 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.91ms. Allocated memory is still 144.7MB. Free memory was 73.7MB in the beginning and 69.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-23 22:24:35,379 INFO L158 Benchmark]: Boogie Preprocessor took 76.24ms. Allocated memory is still 144.7MB. Free memory was 69.9MB in the beginning and 65.3MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-23 22:24:35,380 INFO L158 Benchmark]: RCFGBuilder took 915.79ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 65.3MB in the beginning and 124.4MB in the end (delta: -59.1MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2024-10-23 22:24:35,380 INFO L158 Benchmark]: TraceAbstraction took 682.66ms. Allocated memory is still 188.7MB. Free memory was 123.4MB in the beginning and 87.7MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-10-23 22:24:35,380 INFO L158 Benchmark]: Witness Printer took 4.11ms. Allocated memory is still 188.7MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 22:24:35,382 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 144.7MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.86ms. Allocated memory is still 144.7MB. Free memory was 89.5MB in the beginning and 73.7MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.91ms. Allocated memory is still 144.7MB. Free memory was 73.7MB in the beginning and 69.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.24ms. Allocated memory is still 144.7MB. Free memory was 69.9MB in the beginning and 65.3MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 915.79ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 65.3MB in the beginning and 124.4MB in the end (delta: -59.1MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * TraceAbstraction took 682.66ms. Allocated memory is still 188.7MB. Free memory was 123.4MB in the beginning and 87.7MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.11ms. Allocated memory is still 188.7MB. Free memory is still 87.7MB. 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: 178]: 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 someBinaryDOUBLEComparisonOperation at line 18, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L172] double x = -1.0 / 0.0; [L173] double y = __VERIFIER_nondet_double(); [L174] CALL, EXPR fmod_double(x, y) [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [Zero_fmod={4:0}, one_fmod=1] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 VAL [Zero_fmod={4:0}, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, sx=0, x=4294967311, y=4294967310] [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [Zero_fmod={4:0}, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, sx=0, x=4294967311, y=4294967310] [L45] EXPR hy | ly VAL [Zero_fmod={4:0}, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, sx=0, x=4294967311, y=4294967310] [L45-L46] (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) VAL [Zero_fmod={4:0}, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, sx=0, x=4294967311, y=4294967310] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [Zero_fmod={4:0}, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, sx=0, x=4294967311, y=4294967310] [L174] RET, EXPR fmod_double(x, y) [L174] double res = fmod_double(x, y); [L177] CALL, EXPR isnan_double(res) [L18] return x != x; [L177] RET, EXPR isnan_double(res) [L177] COND TRUE !isnan_double(res) [L178] reach_error() VAL [Zero_fmod={4:0}, one_fmod=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 141 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 204 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 204 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-23 22:24:35,420 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/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1122b.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 fdbce805aa8b4a64f30ef9c8f5d71e1c7a99dc3654784a3c18b27b22409bd2e9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 22:24:37,593 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 22:24:37,668 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-23 22:24:37,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 22:24:37,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 22:24:37,712 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 22:24:37,713 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 22:24:37,713 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 22:24:37,714 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 22:24:37,715 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 22:24:37,715 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 22:24:37,716 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 22:24:37,716 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 22:24:37,718 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 22:24:37,718 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 22:24:37,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 22:24:37,719 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 22:24:37,721 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 22:24:37,722 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 22:24:37,722 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 22:24:37,722 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 22:24:37,723 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 22:24:37,723 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 22:24:37,723 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-23 22:24:37,726 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-23 22:24:37,726 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 22:24:37,727 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-23 22:24:37,727 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 22:24:37,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 22:24:37,727 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 22:24:37,728 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 22:24:37,728 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 22:24:37,728 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 22:24:37,728 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 22:24:37,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 22:24:37,729 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 22:24:37,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 22:24:37,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 22:24:37,730 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-23 22:24:37,730 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-23 22:24:37,731 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 22:24:37,731 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 22:24:37,731 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 22:24:37,731 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 22:24:37,732 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-23 22:24:37,732 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdbce805aa8b4a64f30ef9c8f5d71e1c7a99dc3654784a3c18b27b22409bd2e9 [2024-10-23 22:24:38,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 22:24:38,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 22:24:38,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 22:24:38,059 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 22:24:38,061 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 22:24:38,063 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2024-10-23 22:24:39,654 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 22:24:39,871 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 22:24:39,871 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2024-10-23 22:24:39,884 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68d913e27/c7498cdae7d34b2aaa6bc45ca437f777/FLAG7cc8bf13f [2024-10-23 22:24:39,917 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68d913e27/c7498cdae7d34b2aaa6bc45ca437f777 [2024-10-23 22:24:39,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 22:24:39,922 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 22:24:39,925 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 22:24:39,925 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 22:24:39,930 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 22:24:39,931 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:24:39" (1/1) ... [2024-10-23 22:24:39,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@482cd9cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:39, skipping insertion in model container [2024-10-23 22:24:39,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:24:39" (1/1) ... [2024-10-23 22:24:39,962 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 22:24:40,210 WARN L248 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_1122b.c[3907,3920] [2024-10-23 22:24:40,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 22:24:40,232 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 22:24:40,288 WARN L248 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_1122b.c[3907,3920] [2024-10-23 22:24:40,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 22:24:40,315 INFO L204 MainTranslator]: Completed translation [2024-10-23 22:24:40,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:40 WrapperNode [2024-10-23 22:24:40,315 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 22:24:40,317 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 22:24:40,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 22:24:40,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 22:24:40,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:40" (1/1) ... [2024-10-23 22:24:40,342 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:40" (1/1) ... [2024-10-23 22:24:40,376 INFO L138 Inliner]: procedures = 21, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 228 [2024-10-23 22:24:40,377 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 22:24:40,378 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 22:24:40,378 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 22:24:40,378 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 22:24:40,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:40" (1/1) ... [2024-10-23 22:24:40,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:40" (1/1) ... [2024-10-23 22:24:40,400 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:40" (1/1) ... [2024-10-23 22:24:40,428 INFO L175 MemorySlicer]: Split 19 memory accesses to 6 slices as follows [2, 3, 5, 3, 3, 3]. 26 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 2, 0, 0, 0]. The 6 writes are split as follows [0, 1, 0, 2, 1, 2]. [2024-10-23 22:24:40,433 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:40" (1/1) ... [2024-10-23 22:24:40,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:40" (1/1) ... [2024-10-23 22:24:40,451 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:40" (1/1) ... [2024-10-23 22:24:40,460 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:40" (1/1) ... [2024-10-23 22:24:40,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:40" (1/1) ... [2024-10-23 22:24:40,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:40" (1/1) ... [2024-10-23 22:24:40,479 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 22:24:40,484 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 22:24:40,484 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 22:24:40,484 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 22:24:40,485 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:40" (1/1) ... [2024-10-23 22:24:40,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 22:24:40,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 22:24:40,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-23 22:24:40,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-23 22:24:40,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 22:24:40,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-10-23 22:24:40,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-10-23 22:24:40,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-10-23 22:24:40,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-10-23 22:24:40,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-10-23 22:24:40,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-10-23 22:24:40,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-10-23 22:24:40,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-10-23 22:24:40,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-10-23 22:24:40,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-10-23 22:24:40,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-10-23 22:24:40,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-10-23 22:24:40,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-23 22:24:40,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-23 22:24:40,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-23 22:24:40,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-23 22:24:40,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-10-23 22:24:40,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-10-23 22:24:40,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-23 22:24:40,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-10-23 22:24:40,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-10-23 22:24:40,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-10-23 22:24:40,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-10-23 22:24:40,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-10-23 22:24:40,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2024-10-23 22:24:40,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-23 22:24:40,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-23 22:24:40,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-23 22:24:40,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-23 22:24:40,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-10-23 22:24:40,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-10-23 22:24:40,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 22:24:40,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 22:24:40,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-23 22:24:40,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-23 22:24:40,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-23 22:24:40,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-23 22:24:40,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-10-23 22:24:40,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-10-23 22:24:40,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-23 22:24:40,690 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 22:24:40,693 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 22:24:46,465 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-10-23 22:24:46,465 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 22:24:46,510 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 22:24:46,511 INFO L314 CfgBuilder]: Removed 14 assume(true) statements. [2024-10-23 22:24:46,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:24:46 BoogieIcfgContainer [2024-10-23 22:24:46,511 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 22:24:46,514 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 22:24:46,514 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 22:24:46,517 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 22:24:46,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:24:39" (1/3) ... [2024-10-23 22:24:46,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c36728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:24:46, skipping insertion in model container [2024-10-23 22:24:46,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:24:40" (2/3) ... [2024-10-23 22:24:46,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c36728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:24:46, skipping insertion in model container [2024-10-23 22:24:46,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:24:46" (3/3) ... [2024-10-23 22:24:46,521 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122b.c [2024-10-23 22:24:46,537 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 22:24:46,537 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 22:24:46,590 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 22:24:46,596 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;@321d5cda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 22:24:46,596 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 22:24:46,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.934782608695652) internal successors, (89), 47 states have internal predecessors, (89), 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) [2024-10-23 22:24:46,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-23 22:24:46,606 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:24:46,607 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:24:46,607 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:24:46,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:24:46,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1583473967, now seen corresponding path program 1 times [2024-10-23 22:24:46,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-23 22:24:46,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970529026] [2024-10-23 22:24:46,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:24:46,626 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-23 22:24:46,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-23 22:24:46,631 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-23 22:24:46,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-23 22:24:47,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:24:47,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-23 22:24:47,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 22:24:47,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 22:24:47,444 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 22:24:47,444 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-23 22:24:47,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970529026] [2024-10-23 22:24:47,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [970529026] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:24:47,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:24:47,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 22:24:47,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500818004] [2024-10-23 22:24:47,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:24:47,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 22:24:47,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-23 22:24:47,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 22:24:47,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 22:24:47,480 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.934782608695652) internal successors, (89), 47 states have internal predecessors, (89), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-10-23 22:24:47,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:24:47,636 INFO L93 Difference]: Finished difference Result 95 states and 177 transitions. [2024-10-23 22:24:47,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 22:24:47,639 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2024-10-23 22:24:47,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:24:47,647 INFO L225 Difference]: With dead ends: 95 [2024-10-23 22:24:47,647 INFO L226 Difference]: Without dead ends: 46 [2024-10-23 22:24:47,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 22:24:47,653 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-23 22:24:47,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-23 22:24:47,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-10-23 22:24:47,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-10-23 22:24:47,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.6) internal successors, (72), 45 states have internal predecessors, (72), 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) [2024-10-23 22:24:47,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 72 transitions. [2024-10-23 22:24:47,685 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 72 transitions. Word has length 8 [2024-10-23 22:24:47,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:24:47,685 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 72 transitions. [2024-10-23 22:24:47,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-10-23 22:24:47,686 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 72 transitions. [2024-10-23 22:24:47,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-23 22:24:47,686 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:24:47,686 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:24:47,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-23 22:24:47,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-23 22:24:47,888 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:24:47,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:24:47,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1707486894, now seen corresponding path program 1 times [2024-10-23 22:24:47,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-23 22:24:47,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41343794] [2024-10-23 22:24:47,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:24:47,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-23 22:24:47,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-23 22:24:47,892 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-23 22:24:47,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-23 22:24:48,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:24:48,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-23 22:24:48,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 22:24:58,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 22:24:58,210 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 22:24:58,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-23 22:24:58,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41343794] [2024-10-23 22:24:58,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41343794] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:24:58,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:24:58,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 22:24:58,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188381284] [2024-10-23 22:24:58,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:24:58,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-23 22:24:58,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-23 22:24:58,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-23 22:24:58,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-23 22:24:58,218 INFO L87 Difference]: Start difference. First operand 46 states and 72 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-10-23 22:25:01,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-23 22:25:06,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:25:06,446 INFO L93 Difference]: Finished difference Result 51 states and 76 transitions. [2024-10-23 22:25:06,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-23 22:25:06,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2024-10-23 22:25:06,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:25:06,475 INFO L225 Difference]: With dead ends: 51 [2024-10-23 22:25:06,475 INFO L226 Difference]: Without dead ends: 47 [2024-10-23 22:25:06,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-23 22:25:06,477 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 55 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-10-23 22:25:06,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 188 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-10-23 22:25:06,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-10-23 22:25:06,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2024-10-23 22:25:06,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.5777777777777777) internal successors, (71), 45 states have internal predecessors, (71), 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) [2024-10-23 22:25:06,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 71 transitions. [2024-10-23 22:25:06,483 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 71 transitions. Word has length 10 [2024-10-23 22:25:06,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:25:06,484 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 71 transitions. [2024-10-23 22:25:06,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-10-23 22:25:06,484 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 71 transitions. [2024-10-23 22:25:06,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-23 22:25:06,484 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:25:06,485 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:25:06,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-10-23 22:25:06,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-23 22:25:06,686 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:25:06,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:25:06,686 INFO L85 PathProgramCache]: Analyzing trace with hash -376199059, now seen corresponding path program 1 times [2024-10-23 22:25:06,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-23 22:25:06,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385595184] [2024-10-23 22:25:06,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:25:06,687 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-23 22:25:06,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-23 22:25:06,688 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) [2024-10-23 22:25:06,690 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 [2024-10-23 22:25:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:25:06,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-23 22:25:06,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 22:25:07,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 22:25:07,828 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 22:25:07,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-23 22:25:07,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385595184] [2024-10-23 22:25:07,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [385595184] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:25:07,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:25:07,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 22:25:07,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407947557] [2024-10-23 22:25:07,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:25:07,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-23 22:25:07,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-23 22:25:07,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-23 22:25:07,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-23 22:25:07,830 INFO L87 Difference]: Start difference. First operand 46 states and 71 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-10-23 22:25:08,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:25:08,452 INFO L93 Difference]: Finished difference Result 46 states and 71 transitions. [2024-10-23 22:25:08,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-23 22:25:08,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2024-10-23 22:25:08,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:25:08,453 INFO L225 Difference]: With dead ends: 46 [2024-10-23 22:25:08,453 INFO L226 Difference]: Without dead ends: 0 [2024-10-23 22:25:08,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-23 22:25:08,454 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-23 22:25:08,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-23 22:25:08,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-23 22:25:08,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-23 22:25:08,455 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) [2024-10-23 22:25:08,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-23 22:25:08,456 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2024-10-23 22:25:08,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:25:08,456 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-23 22:25:08,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-10-23 22:25:08,456 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-23 22:25:08,456 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-23 22:25:08,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 22:25:08,471 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 (4)] Ended with exit code 0 [2024-10-23 22:25:08,662 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 [2024-10-23 22:25:08,665 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-23 22:25:08,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-23 22:25:09,497 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 22:25:09,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:25:09 BoogieIcfgContainer [2024-10-23 22:25:09,549 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 22:25:09,550 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 22:25:09,550 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 22:25:09,550 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 22:25:09,550 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:24:46" (3/4) ... [2024-10-23 22:25:09,558 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-23 22:25:09,575 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-23 22:25:09,575 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-23 22:25:09,575 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-23 22:25:09,575 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-23 22:25:09,674 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-23 22:25:09,674 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-23 22:25:09,674 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 22:25:09,675 INFO L158 Benchmark]: Toolchain (without parser) took 29753.31ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 48.2MB in the beginning and 57.5MB in the end (delta: -9.2MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2024-10-23 22:25:09,675 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 48.2MB. Free memory was 29.5MB in the beginning and 29.4MB in the end (delta: 60.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 22:25:09,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.01ms. Allocated memory is still 67.1MB. Free memory was 48.0MB in the beginning and 31.9MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-23 22:25:09,676 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.53ms. Allocated memory is still 67.1MB. Free memory was 31.6MB in the beginning and 29.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-23 22:25:09,676 INFO L158 Benchmark]: Boogie Preprocessor took 105.40ms. Allocated memory is still 67.1MB. Free memory was 29.4MB in the beginning and 44.8MB in the end (delta: -15.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-23 22:25:09,677 INFO L158 Benchmark]: RCFGBuilder took 6027.83ms. Allocated memory is still 67.1MB. Free memory was 44.8MB in the beginning and 34.2MB in the end (delta: 10.6MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2024-10-23 22:25:09,677 INFO L158 Benchmark]: TraceAbstraction took 23035.38ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 33.5MB in the beginning and 62.1MB in the end (delta: -28.6MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2024-10-23 22:25:09,678 INFO L158 Benchmark]: Witness Printer took 124.91ms. Allocated memory is still 86.0MB. Free memory was 61.6MB in the beginning and 57.5MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-23 22:25:09,680 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 48.2MB. Free memory was 29.5MB in the beginning and 29.4MB in the end (delta: 60.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 391.01ms. Allocated memory is still 67.1MB. Free memory was 48.0MB in the beginning and 31.9MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.53ms. Allocated memory is still 67.1MB. Free memory was 31.6MB in the beginning and 29.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 105.40ms. Allocated memory is still 67.1MB. Free memory was 29.4MB in the beginning and 44.8MB in the end (delta: -15.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 6027.83ms. Allocated memory is still 67.1MB. Free memory was 44.8MB in the beginning and 34.2MB in the end (delta: 10.6MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * TraceAbstraction took 23035.38ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 33.5MB in the beginning and 62.1MB in the end (delta: -28.6MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * Witness Printer took 124.91ms. Allocated memory is still 86.0MB. Free memory was 61.6MB in the beginning and 57.5MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 178]: 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, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 60 SdHoareTripleChecker+Valid, 8.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 261 SdHoareTripleChecker+Invalid, 8.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 128 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 133 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 10.6s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 7 QuantifiedInterpolants, 239 SizeOfPredicates, 6 NumberOfNonLiveVariables, 165 ConjunctsInSsa, 14 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: 35]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-10-23 22:25:09,892 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-10-23 22:25:09,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE