./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/float_req_bl_1131a.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/float_req_bl_1131a.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 9d7de4eae0919f71f47a70084dddfbb7e8bba2261ae33533b8e450f3643f4e28 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 22:33:37,079 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 22:33:37,133 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 22:33:37,136 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 22:33:37,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 22:33:37,150 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 22:33:37,151 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 22:33:37,151 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 22:33:37,152 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 22:33:37,152 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 22:33:37,152 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 22:33:37,152 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 22:33:37,153 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 22:33:37,153 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 22:33:37,153 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 22:33:37,154 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 22:33:37,154 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 22:33:37,154 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 22:33:37,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 22:33:37,155 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 22:33:37,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 22:33:37,155 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 22:33:37,156 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 22:33:37,156 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 22:33:37,156 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 22:33:37,156 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 22:33:37,157 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 22:33:37,157 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 22:33:37,157 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 22:33:37,157 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 22:33:37,158 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 22:33:37,158 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 22:33:37,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 22:33:37,158 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 22:33:37,159 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 22:33:37,159 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 22:33:37,159 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 22:33:37,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 22:33:37,159 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 22:33:37,160 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 22:33:37,160 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 22:33:37,160 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 22:33:37,160 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d7de4eae0919f71f47a70084dddfbb7e8bba2261ae33533b8e450f3643f4e28 [2024-10-23 22:33:37,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 22:33:37,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 22:33:37,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 22:33:37,466 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 22:33:37,468 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 22:33:37,469 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131a.c [2024-10-23 22:33:38,811 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 22:33:38,972 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 22:33:38,973 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131a.c [2024-10-23 22:33:38,980 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a09d7faab/b55510c266fc480aae629a9562e020aa/FLAG4187bb028 [2024-10-23 22:33:38,991 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a09d7faab/b55510c266fc480aae629a9562e020aa [2024-10-23 22:33:38,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 22:33:38,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 22:33:38,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 22:33:38,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 22:33:39,000 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 22:33:39,001 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:33:38" (1/1) ... [2024-10-23 22:33:39,001 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c8b5e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:39, skipping insertion in model container [2024-10-23 22:33:39,001 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:33:38" (1/1) ... [2024-10-23 22:33:39,021 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 22:33:39,264 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/float_req_bl_1131a.c[2945,2958] [2024-10-23 22:33:39,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 22:33:39,276 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 22:33:39,303 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/float_req_bl_1131a.c[2945,2958] [2024-10-23 22:33:39,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 22:33:39,323 INFO L204 MainTranslator]: Completed translation [2024-10-23 22:33:39,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:39 WrapperNode [2024-10-23 22:33:39,324 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 22:33:39,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 22:33:39,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 22:33:39,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 22:33:39,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:39" (1/1) ... [2024-10-23 22:33:39,342 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:39" (1/1) ... [2024-10-23 22:33:39,381 INFO L138 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 255 [2024-10-23 22:33:39,385 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 22:33:39,390 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 22:33:39,390 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 22:33:39,390 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 22:33:39,410 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:39" (1/1) ... [2024-10-23 22:33:39,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:39" (1/1) ... [2024-10-23 22:33:39,414 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:39" (1/1) ... [2024-10-23 22:33:39,434 INFO L175 MemorySlicer]: Split 17 memory accesses to 7 slices as follows [2, 2, 5, 2, 2, 2, 2]. 29 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 2, 0, 0, 0, 0]. The 5 writes are split as follows [0, 1, 0, 1, 1, 1, 1]. [2024-10-23 22:33:39,435 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:39" (1/1) ... [2024-10-23 22:33:39,435 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:39" (1/1) ... [2024-10-23 22:33:39,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:39" (1/1) ... [2024-10-23 22:33:39,450 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:39" (1/1) ... [2024-10-23 22:33:39,452 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:39" (1/1) ... [2024-10-23 22:33:39,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:39" (1/1) ... [2024-10-23 22:33:39,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 22:33:39,461 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 22:33:39,461 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 22:33:39,461 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 22:33:39,462 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:39" (1/1) ... [2024-10-23 22:33:39,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 22:33:39,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 22:33:39,504 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 22:33:39,510 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 22:33:39,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 22:33:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 22:33:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-23 22:33:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-23 22:33:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-23 22:33:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-23 22:33:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-23 22:33:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-23 22:33:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-23 22:33:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-23 22:33:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-23 22:33:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-23 22:33:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-23 22:33:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-23 22:33:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-23 22:33:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-23 22:33:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-23 22:33:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-23 22:33:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-23 22:33:39,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-23 22:33:39,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-23 22:33:39,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-23 22:33:39,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-10-23 22:33:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-23 22:33:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-23 22:33:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-23 22:33:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-23 22:33:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-23 22:33:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-23 22:33:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-10-23 22:33:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 22:33:39,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 22:33:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-23 22:33:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-23 22:33:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-23 22:33:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-23 22:33:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-23 22:33:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-23 22:33:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-23 22:33:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-23 22:33:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-23 22:33:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-23 22:33:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-23 22:33:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-23 22:33:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-10-23 22:33:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-10-23 22:33:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-23 22:33:39,733 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 22:33:39,735 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 22:33:40,040 INFO L? ?]: Removed 62 outVars from TransFormulas that were not future-live. [2024-10-23 22:33:40,040 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 22:33:40,061 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 22:33:40,061 INFO L314 CfgBuilder]: Removed 14 assume(true) statements. [2024-10-23 22:33:40,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:33:40 BoogieIcfgContainer [2024-10-23 22:33:40,061 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 22:33:40,063 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 22:33:40,063 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 22:33:40,068 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 22:33:40,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:33:38" (1/3) ... [2024-10-23 22:33:40,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e3ab897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:33:40, skipping insertion in model container [2024-10-23 22:33:40,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:39" (2/3) ... [2024-10-23 22:33:40,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e3ab897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:33:40, skipping insertion in model container [2024-10-23 22:33:40,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:33:40" (3/3) ... [2024-10-23 22:33:40,070 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131a.c [2024-10-23 22:33:40,085 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 22:33:40,085 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 22:33:40,131 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 22:33:40,136 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;@36e9b8ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 22:33:40,136 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 22:33:40,139 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 74 states have (on average 1.662162162162162) internal successors, (123), 75 states have internal predecessors, (123), 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 22:33:40,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-23 22:33:40,144 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:33:40,144 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:33:40,145 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:33:40,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:33:40,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1091642384, now seen corresponding path program 1 times [2024-10-23 22:33:40,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 22:33:40,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709960120] [2024-10-23 22:33:40,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:33:40,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 22:33:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:33:40,299 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 22:33:40,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 22:33:40,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709960120] [2024-10-23 22:33:40,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709960120] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:33:40,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:33:40,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 22:33:40,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979219285] [2024-10-23 22:33:40,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:33:40,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 22:33:40,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 22:33:40,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 22:33:40,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 22:33:40,326 INFO L87 Difference]: Start difference. First operand has 76 states, 74 states have (on average 1.662162162162162) internal successors, (123), 75 states have internal predecessors, (123), 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 22:33:40,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:33:40,358 INFO L93 Difference]: Finished difference Result 151 states and 245 transitions. [2024-10-23 22:33:40,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 22:33:40,360 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 22:33:40,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:33:40,367 INFO L225 Difference]: With dead ends: 151 [2024-10-23 22:33:40,368 INFO L226 Difference]: Without dead ends: 73 [2024-10-23 22:33:40,370 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 22:33:40,373 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 22:33:40,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 101 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 22:33:40,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-10-23 22:33:40,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-10-23 22:33:40,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.4166666666666667) internal successors, (102), 72 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 22:33:40,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2024-10-23 22:33:40,405 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 13 [2024-10-23 22:33:40,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:33:40,405 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2024-10-23 22:33:40,405 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 22:33:40,405 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2024-10-23 22:33:40,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-23 22:33:40,406 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:33:40,406 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:33:40,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 22:33:40,407 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:33:40,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:33:40,408 INFO L85 PathProgramCache]: Analyzing trace with hash -400376572, now seen corresponding path program 1 times [2024-10-23 22:33:40,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 22:33:40,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233756650] [2024-10-23 22:33:40,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:33:40,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 22:33:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-23 22:33:40,495 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-23 22:33:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-23 22:33:40,559 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-23 22:33:40,559 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-23 22:33:40,561 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 22:33:40,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 22:33:40,566 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-23 22:33:40,587 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 22:33:40,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:33:40 BoogieIcfgContainer [2024-10-23 22:33:40,589 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 22:33:40,590 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 22:33:40,590 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 22:33:40,590 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 22:33:40,591 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:33:40" (3/4) ... [2024-10-23 22:33:40,592 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-23 22:33:40,593 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 22:33:40,594 INFO L158 Benchmark]: Toolchain (without parser) took 1599.53ms. Allocated memory is still 195.0MB. Free memory was 118.4MB in the beginning and 102.4MB in the end (delta: 16.0MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2024-10-23 22:33:40,594 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 195.0MB. Free memory is still 164.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 22:33:40,594 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.30ms. Allocated memory is still 195.0MB. Free memory was 118.1MB in the beginning and 103.7MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-23 22:33:40,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.97ms. Allocated memory is still 195.0MB. Free memory was 103.7MB in the beginning and 101.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-23 22:33:40,595 INFO L158 Benchmark]: Boogie Preprocessor took 70.73ms. Allocated memory is still 195.0MB. Free memory was 101.1MB in the beginning and 97.7MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-23 22:33:40,595 INFO L158 Benchmark]: RCFGBuilder took 600.51ms. Allocated memory is still 195.0MB. Free memory was 97.7MB in the beginning and 139.0MB in the end (delta: -41.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-23 22:33:40,596 INFO L158 Benchmark]: TraceAbstraction took 526.76ms. Allocated memory is still 195.0MB. Free memory was 139.0MB in the beginning and 103.3MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-10-23 22:33:40,596 INFO L158 Benchmark]: Witness Printer took 3.31ms. Allocated memory is still 195.0MB. Free memory was 103.3MB in the beginning and 102.4MB in the end (delta: 892.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 22:33:40,598 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 195.0MB. Free memory is still 164.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.30ms. Allocated memory is still 195.0MB. Free memory was 118.1MB in the beginning and 103.7MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.97ms. Allocated memory is still 195.0MB. Free memory was 103.7MB in the beginning and 101.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.73ms. Allocated memory is still 195.0MB. Free memory was 101.1MB in the beginning and 97.7MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 600.51ms. Allocated memory is still 195.0MB. Free memory was 97.7MB in the beginning and 139.0MB in the end (delta: -41.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 526.76ms. Allocated memory is still 195.0MB. Free memory was 139.0MB in the beginning and 103.3MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 3.31ms. Allocated memory is still 195.0MB. Free memory was 103.3MB in the beginning and 102.4MB in the end (delta: 892.0kB). 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: 137]: 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 someBinaryFLOATComparisonOperation at line 136, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L128] float x = __VERIFIER_nondet_float(); [L129] float y = 1.0f / 0.0f; [L131] CALL isfinite_float(x) [L111] __int32_t ix; VAL [Zero_fmod={4:0}, one_fmod=1, x=2139095042] [L113] ieee_float_shape_type gf_u; [L114] gf_u.value = (x) [L115] EXPR gf_u.word [L115] (ix) = gf_u.word [L117] ix &= 0x7fffffff [L118] return (((ix) < 0x7f800000L)); [L131] RET isfinite_float(x) [L131] COND TRUE isfinite_float(x) [L133] CALL, EXPR fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [Zero_fmod={4:0}, one_fmod=1, x=2139095042, y=2139095041] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 VAL [Zero_fmod={4:0}, hx=0, hy=0, one_fmod=1, sx=0, x=2139095042, y=2139095041] [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [Zero_fmod={4:0}, hx=0, hy=0, one_fmod=1, sx=0, x=2139095042, y=2139095041] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [Zero_fmod={4:0}, one_fmod=1, sx=0, x=2139095042, y=2139095041] [L133] RET, EXPR fmod_float(x, y) [L133] float res = fmod_float(x, y); [L136] COND TRUE res != x VAL [Zero_fmod={4:0}, one_fmod=1] [L137] reach_error() VAL [Zero_fmod={4:0}, one_fmod=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 101 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 101 mSDtfsCounter, 5 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=76occurred 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, 29 NumberOfCodeBlocks, 29 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 22:33:40,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131a.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 9d7de4eae0919f71f47a70084dddfbb7e8bba2261ae33533b8e450f3643f4e28 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 22:33:42,547 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 22:33:42,612 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-23 22:33:42,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 22:33:42,618 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 22:33:42,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 22:33:42,647 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 22:33:42,648 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 22:33:42,648 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 22:33:42,649 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 22:33:42,649 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 22:33:42,649 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 22:33:42,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 22:33:42,650 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 22:33:42,652 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 22:33:42,652 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 22:33:42,652 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 22:33:42,653 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 22:33:42,653 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 22:33:42,653 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 22:33:42,653 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 22:33:42,656 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 22:33:42,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 22:33:42,657 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-23 22:33:42,657 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-23 22:33:42,657 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 22:33:42,657 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-23 22:33:42,657 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 22:33:42,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 22:33:42,657 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 22:33:42,658 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 22:33:42,658 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 22:33:42,658 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 22:33:42,658 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 22:33:42,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 22:33:42,658 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 22:33:42,658 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 22:33:42,658 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 22:33:42,659 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-23 22:33:42,659 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-23 22:33:42,659 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 22:33:42,660 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 22:33:42,660 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 22:33:42,661 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 22:33:42,661 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-23 22:33:42,661 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d7de4eae0919f71f47a70084dddfbb7e8bba2261ae33533b8e450f3643f4e28 [2024-10-23 22:33:42,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 22:33:42,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 22:33:42,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 22:33:42,967 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 22:33:42,968 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 22:33:42,970 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131a.c [2024-10-23 22:33:44,434 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 22:33:44,579 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 22:33:44,579 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131a.c [2024-10-23 22:33:44,587 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c050d8b8/714c4f15269d486eb44a5c5e39ac718e/FLAG2d9f102d6 [2024-10-23 22:33:44,599 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c050d8b8/714c4f15269d486eb44a5c5e39ac718e [2024-10-23 22:33:44,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 22:33:44,602 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 22:33:44,604 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 22:33:44,604 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 22:33:44,607 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 22:33:44,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:33:44" (1/1) ... [2024-10-23 22:33:44,610 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@648df3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:44, skipping insertion in model container [2024-10-23 22:33:44,610 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:33:44" (1/1) ... [2024-10-23 22:33:44,628 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 22:33:44,815 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/float_req_bl_1131a.c[2945,2958] [2024-10-23 22:33:44,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 22:33:44,831 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 22:33:44,862 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/float_req_bl_1131a.c[2945,2958] [2024-10-23 22:33:44,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 22:33:44,882 INFO L204 MainTranslator]: Completed translation [2024-10-23 22:33:44,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:44 WrapperNode [2024-10-23 22:33:44,882 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 22:33:44,883 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 22:33:44,883 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 22:33:44,883 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 22:33:44,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:44" (1/1) ... [2024-10-23 22:33:44,898 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:44" (1/1) ... [2024-10-23 22:33:44,925 INFO L138 Inliner]: procedures = 21, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 189 [2024-10-23 22:33:44,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 22:33:44,926 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 22:33:44,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 22:33:44,927 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 22:33:44,935 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:44" (1/1) ... [2024-10-23 22:33:44,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:44" (1/1) ... [2024-10-23 22:33:44,941 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:44" (1/1) ... [2024-10-23 22:33:44,960 INFO L175 MemorySlicer]: Split 17 memory accesses to 7 slices as follows [2, 2, 2, 5, 2, 2, 2]. 29 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 0, 2, 0, 0, 0]. The 5 writes are split as follows [0, 1, 1, 0, 1, 1, 1]. [2024-10-23 22:33:44,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:44" (1/1) ... [2024-10-23 22:33:44,960 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:44" (1/1) ... [2024-10-23 22:33:44,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:44" (1/1) ... [2024-10-23 22:33:44,974 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:44" (1/1) ... [2024-10-23 22:33:44,977 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:44" (1/1) ... [2024-10-23 22:33:44,980 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:44" (1/1) ... [2024-10-23 22:33:44,990 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 22:33:44,991 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 22:33:44,991 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 22:33:44,991 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 22:33:44,991 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:44" (1/1) ... [2024-10-23 22:33:44,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 22:33:45,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 22:33:45,019 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 22:33:45,022 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 22:33:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 22:33:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-10-23 22:33:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-10-23 22:33:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-10-23 22:33:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-10-23 22:33:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-10-23 22:33:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-10-23 22:33:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-10-23 22:33:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-23 22:33:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-23 22:33:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-23 22:33:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-23 22:33:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-10-23 22:33:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-10-23 22:33:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-10-23 22:33:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-23 22:33:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-10-23 22:33:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-10-23 22:33:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-10-23 22:33:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-10-23 22:33:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-10-23 22:33:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-10-23 22:33:45,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-10-23 22:33:45,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-23 22:33:45,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-23 22:33:45,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-23 22:33:45,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-23 22:33:45,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-10-23 22:33:45,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-10-23 22:33:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-10-23 22:33:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 22:33:45,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 22:33:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-10-23 22:33:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-10-23 22:33:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-10-23 22:33:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-10-23 22:33:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-10-23 22:33:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-10-23 22:33:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-10-23 22:33:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-23 22:33:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-23 22:33:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-23 22:33:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-23 22:33:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-10-23 22:33:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-10-23 22:33:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-10-23 22:33:45,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-23 22:33:45,200 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 22:33:45,201 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 22:33:49,107 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-10-23 22:33:49,107 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 22:33:49,138 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 22:33:49,138 INFO L314 CfgBuilder]: Removed 14 assume(true) statements. [2024-10-23 22:33:49,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:33:49 BoogieIcfgContainer [2024-10-23 22:33:49,139 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 22:33:49,141 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 22:33:49,141 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 22:33:49,143 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 22:33:49,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:33:44" (1/3) ... [2024-10-23 22:33:49,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5e0a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:33:49, skipping insertion in model container [2024-10-23 22:33:49,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:33:44" (2/3) ... [2024-10-23 22:33:49,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5e0a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:33:49, skipping insertion in model container [2024-10-23 22:33:49,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:33:49" (3/3) ... [2024-10-23 22:33:49,146 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131a.c [2024-10-23 22:33:49,159 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 22:33:49,159 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 22:33:49,204 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 22:33:49,210 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;@420d3b5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 22:33:49,211 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 22:33:49,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.825) internal successors, (73), 41 states have internal predecessors, (73), 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 22:33:49,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-23 22:33:49,218 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:33:49,219 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:33:49,219 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:33:49,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:33:49,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1164250482, now seen corresponding path program 1 times [2024-10-23 22:33:49,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-23 22:33:49,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932154342] [2024-10-23 22:33:49,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:33:49,232 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 22:33:49,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-23 22:33:49,235 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 22:33:49,236 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 22:33:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:33:49,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-23 22:33:49,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 22:33:49,474 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 22:33:49,474 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 22:33:49,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-23 22:33:49,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932154342] [2024-10-23 22:33:49,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932154342] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:33:49,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:33:49,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 22:33:49,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682901774] [2024-10-23 22:33:49,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:33:49,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 22:33:49,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-23 22:33:49,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 22:33:49,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 22:33:49,509 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.825) internal successors, (73), 41 states have internal predecessors, (73), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 22:33:49,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:33:49,555 INFO L93 Difference]: Finished difference Result 83 states and 145 transitions. [2024-10-23 22:33:49,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 22:33:49,557 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2024-10-23 22:33:49,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:33:49,565 INFO L225 Difference]: With dead ends: 83 [2024-10-23 22:33:49,566 INFO L226 Difference]: Without dead ends: 39 [2024-10-23 22:33:49,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 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 22:33:49,572 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 22:33:49,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 22:33:49,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-10-23 22:33:49,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-10-23 22:33:49,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 38 states have internal predecessors, (54), 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 22:33:49,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2024-10-23 22:33:49,605 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 11 [2024-10-23 22:33:49,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:33:49,606 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2024-10-23 22:33:49,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 22:33:49,607 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2024-10-23 22:33:49,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-23 22:33:49,607 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:33:49,608 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:33:49,620 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 22:33:49,809 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 22:33:49,810 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:33:49,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:33:49,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1997828190, now seen corresponding path program 1 times [2024-10-23 22:33:49,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-23 22:33:49,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787041830] [2024-10-23 22:33:49,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:33:49,815 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 22:33:49,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-23 22:33:49,821 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 22:33:49,823 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 22:33:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:33:50,097 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-23 22:33:50,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 22:33:51,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-23 22:33:51,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-10-23 22:33:51,985 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 22:33:51,985 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 22:33:51,985 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-23 22:33:51,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787041830] [2024-10-23 22:33:51,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787041830] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:33:51,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:33:51,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-23 22:33:51,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594039031] [2024-10-23 22:33:51,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:33:51,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-23 22:33:51,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-23 22:33:51,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-23 22:33:51,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-23 22:33:51,988 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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 22:33:53,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:33:53,117 INFO L93 Difference]: Finished difference Result 43 states and 57 transitions. [2024-10-23 22:33:53,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-23 22:33:53,118 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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 14 [2024-10-23 22:33:53,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:33:53,119 INFO L225 Difference]: With dead ends: 43 [2024-10-23 22:33:53,119 INFO L226 Difference]: Without dead ends: 16 [2024-10-23 22:33:53,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-23 22:33:53,124 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 13 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 22:33:53,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 30 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 22:33:53,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-10-23 22:33:53,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-10-23 22:33:53,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 22:33:53,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2024-10-23 22:33:53,132 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 14 [2024-10-23 22:33:53,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:33:53,132 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2024-10-23 22:33:53,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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 22:33:53,132 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2024-10-23 22:33:53,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-23 22:33:53,133 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 22:33:53,133 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 22:33:53,146 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 22:33:53,333 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 22:33:53,333 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 22:33:53,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 22:33:53,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1800805330, now seen corresponding path program 1 times [2024-10-23 22:33:53,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-23 22:33:53,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499178432] [2024-10-23 22:33:53,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 22:33:53,334 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 22:33:53,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-23 22:33:53,336 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 22:33:53,359 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 22:33:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 22:33:53,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-23 22:33:53,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 22:33:54,155 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 22:33:54,155 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 22:33:54,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-23 22:33:54,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499178432] [2024-10-23 22:33:54,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499178432] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 22:33:54,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 22:33:54,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-23 22:33:54,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414973056] [2024-10-23 22:33:54,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 22:33:54,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-23 22:33:54,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-23 22:33:54,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-23 22:33:54,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-23 22:33:54,160 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 22:33:54,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 22:33:54,745 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2024-10-23 22:33:54,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-23 22:33:54,746 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-23 22:33:54,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 22:33:54,746 INFO L225 Difference]: With dead ends: 16 [2024-10-23 22:33:54,746 INFO L226 Difference]: Without dead ends: 0 [2024-10-23 22:33:54,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-23 22:33:54,747 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 22:33:54,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 35 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 22:33:54,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-23 22:33:54,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-23 22:33:54,749 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 22:33:54,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-23 22:33:54,749 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2024-10-23 22:33:54,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 22:33:54,749 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-23 22:33:54,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 22:33:54,750 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-23 22:33:54,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-23 22:33:54,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 22:33:54,756 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 22:33:54,952 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 22:33:54,955 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-23 22:33:54,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-23 22:33:55,183 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 22:33:55,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:33:55 BoogieIcfgContainer [2024-10-23 22:33:55,191 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 22:33:55,192 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 22:33:55,192 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 22:33:55,192 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 22:33:55,192 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:33:49" (3/4) ... [2024-10-23 22:33:55,194 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-23 22:33:55,200 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-10-23 22:33:55,202 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-23 22:33:55,202 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-23 22:33:55,202 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-23 22:33:55,284 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-23 22:33:55,284 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-23 22:33:55,284 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 22:33:55,285 INFO L158 Benchmark]: Toolchain (without parser) took 10682.80ms. Allocated memory was 83.9MB in the beginning and 119.5MB in the end (delta: 35.7MB). Free memory was 47.5MB in the beginning and 42.4MB in the end (delta: 5.1MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2024-10-23 22:33:55,285 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 22:33:55,286 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.72ms. Allocated memory is still 83.9MB. Free memory was 47.5MB in the beginning and 58.3MB in the end (delta: -10.8MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2024-10-23 22:33:55,286 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.90ms. Allocated memory is still 83.9MB. Free memory was 58.0MB in the beginning and 55.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-23 22:33:55,286 INFO L158 Benchmark]: Boogie Preprocessor took 63.72ms. Allocated memory is still 83.9MB. Free memory was 55.9MB in the beginning and 52.5MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-23 22:33:55,286 INFO L158 Benchmark]: RCFGBuilder took 4148.39ms. Allocated memory was 83.9MB in the beginning and 119.5MB in the end (delta: 35.7MB). Free memory was 52.5MB in the beginning and 88.9MB in the end (delta: -36.5MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2024-10-23 22:33:55,287 INFO L158 Benchmark]: TraceAbstraction took 6051.02ms. Allocated memory is still 119.5MB. Free memory was 88.4MB in the beginning and 46.6MB in the end (delta: 41.8MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2024-10-23 22:33:55,287 INFO L158 Benchmark]: Witness Printer took 92.37ms. Allocated memory is still 119.5MB. Free memory was 46.6MB in the beginning and 42.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-23 22:33:55,288 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.72ms. Allocated memory is still 83.9MB. Free memory was 47.5MB in the beginning and 58.3MB in the end (delta: -10.8MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.90ms. Allocated memory is still 83.9MB. Free memory was 58.0MB in the beginning and 55.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.72ms. Allocated memory is still 83.9MB. Free memory was 55.9MB in the beginning and 52.5MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 4148.39ms. Allocated memory was 83.9MB in the beginning and 119.5MB in the end (delta: 35.7MB). Free memory was 52.5MB in the beginning and 88.9MB in the end (delta: -36.5MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6051.02ms. Allocated memory is still 119.5MB. Free memory was 88.4MB in the beginning and 46.6MB in the end (delta: 41.8MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. * Witness Printer took 92.37ms. Allocated memory is still 119.5MB. Free memory was 46.6MB in the beginning and 42.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 137]: 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, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 118 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 100 IncrementalHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 65 mSDtfsCounter, 100 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 37 ConstructedInterpolants, 20 QuantifiedInterpolants, 577 SizeOfPredicates, 11 NumberOfNonLiveVariables, 192 ConjunctsInSsa, 40 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: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-10-23 22:33:55,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE