./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0960a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0960a.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 391b103ca58c3d094d944df9f24eee43ed7a92e3ac56b8be31b22c2f90c4d314 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 20:50:10,975 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 20:50:11,041 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 20:50:11,047 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 20:50:11,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 20:50:11,080 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 20:50:11,080 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 20:50:11,080 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 20:50:11,081 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 20:50:11,084 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 20:50:11,084 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 20:50:11,084 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 20:50:11,085 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 20:50:11,085 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 20:50:11,086 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 20:50:11,086 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 20:50:11,086 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 20:50:11,089 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 20:50:11,090 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 20:50:11,090 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 20:50:11,090 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 20:50:11,093 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 20:50:11,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 20:50:11,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 20:50:11,095 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 20:50:11,095 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 20:50:11,096 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 20:50:11,096 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 20:50:11,096 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 20:50:11,096 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 20:50:11,096 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 20:50:11,097 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 20:50:11,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 20:50:11,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 20:50:11,098 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 20:50:11,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 20:50:11,099 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 20:50:11,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 20:50:11,099 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 20:50:11,099 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 20:50:11,099 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 20:50:11,100 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 20:50:11,100 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 391b103ca58c3d094d944df9f24eee43ed7a92e3ac56b8be31b22c2f90c4d314 [2024-11-09 20:50:11,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 20:50:11,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 20:50:11,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 20:50:11,415 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 20:50:11,415 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 20:50:11,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0960a.c [2024-11-09 20:50:12,798 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 20:50:13,034 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 20:50:13,035 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c [2024-11-09 20:50:13,043 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e81de4bd/9bf0b536cb47419aaf89799cb9b39030/FLAG26bf29fd6 [2024-11-09 20:50:13,057 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e81de4bd/9bf0b536cb47419aaf89799cb9b39030 [2024-11-09 20:50:13,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 20:50:13,061 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 20:50:13,062 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 20:50:13,062 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 20:50:13,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 20:50:13,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:50:13" (1/1) ... [2024-11-09 20:50:13,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72eb9782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:13, skipping insertion in model container [2024-11-09 20:50:13,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:50:13" (1/1) ... [2024-11-09 20:50:13,095 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 20:50:13,302 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c[4225,4238] [2024-11-09 20:50:13,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 20:50:13,316 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 20:50:13,352 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c[4225,4238] [2024-11-09 20:50:13,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 20:50:13,376 INFO L204 MainTranslator]: Completed translation [2024-11-09 20:50:13,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:13 WrapperNode [2024-11-09 20:50:13,377 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 20:50:13,378 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 20:50:13,379 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 20:50:13,379 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 20:50:13,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:13" (1/1) ... [2024-11-09 20:50:13,396 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:13" (1/1) ... [2024-11-09 20:50:13,425 INFO L138 Inliner]: procedures = 18, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 260 [2024-11-09 20:50:13,427 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 20:50:13,428 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 20:50:13,428 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 20:50:13,428 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 20:50:13,437 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:13" (1/1) ... [2024-11-09 20:50:13,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:13" (1/1) ... [2024-11-09 20:50:13,440 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:13" (1/1) ... [2024-11-09 20:50:13,465 INFO L175 MemorySlicer]: Split 16 memory accesses to 8 slices as follows [2, 2, 2, 2, 2, 2, 2, 2]. 13 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0]. The 7 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1]. [2024-11-09 20:50:13,466 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:13" (1/1) ... [2024-11-09 20:50:13,466 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:13" (1/1) ... [2024-11-09 20:50:13,493 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:13" (1/1) ... [2024-11-09 20:50:13,494 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:13" (1/1) ... [2024-11-09 20:50:13,499 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:13" (1/1) ... [2024-11-09 20:50:13,505 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:13" (1/1) ... [2024-11-09 20:50:13,514 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 20:50:13,515 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 20:50:13,515 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 20:50:13,515 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 20:50:13,516 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:13" (1/1) ... [2024-11-09 20:50:13,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 20:50:13,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 20:50:13,559 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 20:50:13,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 20:50:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 20:50:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 20:50:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 20:50:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 20:50:13,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 20:50:13,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 20:50:13,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 20:50:13,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-09 20:50:13,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-09 20:50:13,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 20:50:13,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-09 20:50:13,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-09 20:50:13,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-09 20:50:13,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-09 20:50:13,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-09 20:50:13,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-09 20:50:13,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-09 20:50:13,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-09 20:50:13,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 20:50:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 20:50:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 20:50:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 20:50:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 20:50:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 20:50:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-09 20:50:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-09 20:50:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-09 20:50:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-09 20:50:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-09 20:50:13,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-09 20:50:13,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-09 20:50:13,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-09 20:50:13,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-09 20:50:13,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-09 20:50:13,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 20:50:13,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 20:50:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 20:50:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 20:50:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 20:50:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 20:50:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 20:50:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 20:50:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-09 20:50:13,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-09 20:50:13,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 20:50:13,832 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 20:50:13,834 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 20:50:14,178 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live. [2024-11-09 20:50:14,179 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 20:50:14,206 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 20:50:14,206 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 20:50:14,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:50:14 BoogieIcfgContainer [2024-11-09 20:50:14,207 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 20:50:14,209 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 20:50:14,209 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 20:50:14,217 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 20:50:14,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:50:13" (1/3) ... [2024-11-09 20:50:14,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1086d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:50:14, skipping insertion in model container [2024-11-09 20:50:14,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:13" (2/3) ... [2024-11-09 20:50:14,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1086d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:50:14, skipping insertion in model container [2024-11-09 20:50:14,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:50:14" (3/3) ... [2024-11-09 20:50:14,223 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0960a.c [2024-11-09 20:50:14,240 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 20:50:14,241 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 20:50:14,301 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 20:50:14,310 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;@59ac9b22, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 20:50:14,310 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 20:50:14,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 66 states have (on average 1.6363636363636365) internal successors, (108), 67 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:50:14,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 20:50:14,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:50:14,322 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:50:14,323 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:50:14,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:50:14,331 INFO L85 PathProgramCache]: Analyzing trace with hash 652427775, now seen corresponding path program 1 times [2024-11-09 20:50:14,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:50:14,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687027550] [2024-11-09 20:50:14,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:50:14,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:50:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:50:14,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:50:14,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:50:14,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687027550] [2024-11-09 20:50:14,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687027550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:50:14,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:50:14,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 20:50:14,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76734532] [2024-11-09 20:50:14,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:50:14,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 20:50:14,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:50:14,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 20:50:14,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 20:50:14,564 INFO L87 Difference]: Start difference. First operand has 68 states, 66 states have (on average 1.6363636363636365) internal successors, (108), 67 states have internal predecessors, (108), 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) [2024-11-09 20:50:14,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:50:14,609 INFO L93 Difference]: Finished difference Result 133 states and 213 transitions. [2024-11-09 20:50:14,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 20:50:14,612 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 [2024-11-09 20:50:14,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:50:14,621 INFO L225 Difference]: With dead ends: 133 [2024-11-09 20:50:14,621 INFO L226 Difference]: Without dead ends: 64 [2024-11-09 20:50:14,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 20:50:14,630 INFO L432 NwaCegarLoop]: 86 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, 86 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 [2024-11-09 20:50:14,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 20:50:14,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-09 20:50:14,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-11-09 20:50:14,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 63 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:50:14,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 88 transitions. [2024-11-09 20:50:14,673 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 88 transitions. Word has length 11 [2024-11-09 20:50:14,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:50:14,674 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 88 transitions. [2024-11-09 20:50:14,674 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) [2024-11-09 20:50:14,674 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 88 transitions. [2024-11-09 20:50:14,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 20:50:14,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:50:14,677 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:50:14,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 20:50:14,677 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:50:14,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:50:14,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1610286032, now seen corresponding path program 1 times [2024-11-09 20:50:14,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:50:14,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280187038] [2024-11-09 20:50:14,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:50:14,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:50:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 20:50:14,750 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 20:50:14,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 20:50:14,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 20:50:14,852 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 20:50:14,854 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 20:50:14,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 20:50:14,860 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 20:50:14,896 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 20:50:14,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 08:50:14 BoogieIcfgContainer [2024-11-09 20:50:14,901 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 20:50:14,901 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 20:50:14,902 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 20:50:14,902 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 20:50:14,903 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:50:14" (3/4) ... [2024-11-09 20:50:14,905 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-09 20:50:14,907 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 20:50:14,908 INFO L158 Benchmark]: Toolchain (without parser) took 1846.51ms. Allocated memory is still 167.8MB. Free memory was 136.9MB in the beginning and 82.7MB in the end (delta: 54.2MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2024-11-09 20:50:14,909 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 109.1MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 20:50:14,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.38ms. Allocated memory is still 167.8MB. Free memory was 136.9MB in the beginning and 121.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 20:50:14,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.58ms. Allocated memory is still 167.8MB. Free memory was 121.5MB in the beginning and 118.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 20:50:14,912 INFO L158 Benchmark]: Boogie Preprocessor took 86.53ms. Allocated memory is still 167.8MB. Free memory was 118.4MB in the beginning and 115.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 20:50:14,913 INFO L158 Benchmark]: IcfgBuilder took 692.18ms. Allocated memory is still 167.8MB. Free memory was 115.3MB in the beginning and 117.3MB in the end (delta: -2.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 20:50:14,913 INFO L158 Benchmark]: TraceAbstraction took 691.52ms. Allocated memory is still 167.8MB. Free memory was 116.3MB in the beginning and 82.7MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-09 20:50:14,913 INFO L158 Benchmark]: Witness Printer took 5.53ms. Allocated memory is still 167.8MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 20:50:14,915 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 109.1MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.38ms. Allocated memory is still 167.8MB. Free memory was 136.9MB in the beginning and 121.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.58ms. Allocated memory is still 167.8MB. Free memory was 121.5MB in the beginning and 118.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.53ms. Allocated memory is still 167.8MB. Free memory was 118.4MB in the beginning and 115.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 692.18ms. Allocated memory is still 167.8MB. Free memory was 115.3MB in the beginning and 117.3MB in the end (delta: -2.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 691.52ms. Allocated memory is still 167.8MB. Free memory was 116.3MB in the beginning and 82.7MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 5.53ms. Allocated memory is still 167.8MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 169]: 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 someBinaryArithmeticFLOAToperation at line 119. Possible FailurePath: [L14-L18] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L20] static const float zero_log = 0.0; [L100-L103] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L105] static const float zero = 0.0; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, zero=0, zero_log=0] [L164] float x = 0.0f; [L165] CALL, EXPR __ieee754_log10f(x) [L108] float y, z; [L109] __int32_t i, k, hx; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=0, zero=0, zero_log=0] [L112] ieee_float_shape_type gf_u; [L113] gf_u.value = (x) [L114] EXPR gf_u.word [L114] (hx) = gf_u.word [L115] COND FALSE !(0) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, hx=-2147483648, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=0, zero=0, zero_log=0] [L117] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, hx=-2147483648, ivln10_log10=43429449201/100000000000, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=0, zero=0, zero_log=0] [L118] COND TRUE ((hx & 0x7fffffff) == 0) [L119] return -two25_log10 / zero; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ivln10_log10=43429449201/100000000000, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=0, zero=0, zero_log=0] [L165] RET, EXPR __ieee754_log10f(x) [L165] float res = __ieee754_log10f(x); [L168] CALL, EXPR isinf_float(res) [L148] __int32_t ix; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=2147483661, zero=0, zero_log=0] [L150] ieee_float_shape_type gf_u; [L151] gf_u.value = (x) [L152] EXPR gf_u.word [L152] (ix) = gf_u.word [L153] COND FALSE !(0) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ivln10_log10=43429449201/100000000000, ix=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=2147483661, zero=0, zero_log=0] [L154] ix &= 0x7fffffff [L155] return ((ix) == 0x7f800000L); VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \result=0, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=2147483661, zero=0, zero_log=0] [L168] RET, EXPR isinf_float(res) [L168] COND TRUE !isinf_float(res) [L169] reach_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 86 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, 86 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=68occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 20:50:14,954 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/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0960a.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 391b103ca58c3d094d944df9f24eee43ed7a92e3ac56b8be31b22c2f90c4d314 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 20:50:17,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 20:50:17,333 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-09 20:50:17,338 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 20:50:17,339 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 20:50:17,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 20:50:17,369 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 20:50:17,369 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 20:50:17,370 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 20:50:17,373 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 20:50:17,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 20:50:17,374 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 20:50:17,375 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 20:50:17,377 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 20:50:17,377 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 20:50:17,377 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 20:50:17,378 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 20:50:17,378 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 20:50:17,378 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 20:50:17,378 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 20:50:17,379 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 20:50:17,380 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 20:50:17,380 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 20:50:17,380 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 20:50:17,380 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 20:50:17,380 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 20:50:17,381 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 20:50:17,381 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 20:50:17,381 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 20:50:17,381 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 20:50:17,382 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 20:50:17,382 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 20:50:17,382 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 20:50:17,382 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 20:50:17,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 20:50:17,383 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 20:50:17,383 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 20:50:17,383 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 20:50:17,385 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-09 20:50:17,385 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 20:50:17,385 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 20:50:17,385 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 20:50:17,385 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 20:50:17,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 20:50:17,386 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 391b103ca58c3d094d944df9f24eee43ed7a92e3ac56b8be31b22c2f90c4d314 [2024-11-09 20:50:17,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 20:50:17,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 20:50:17,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 20:50:17,753 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 20:50:17,753 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 20:50:17,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0960a.c [2024-11-09 20:50:19,244 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 20:50:19,497 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 20:50:19,498 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c [2024-11-09 20:50:19,510 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d13b2afad/56299134623e41ef95b3568f0e44f671/FLAGd43bc4fa8 [2024-11-09 20:50:19,530 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d13b2afad/56299134623e41ef95b3568f0e44f671 [2024-11-09 20:50:19,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 20:50:19,534 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 20:50:19,537 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 20:50:19,537 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 20:50:19,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 20:50:19,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:50:19" (1/1) ... [2024-11-09 20:50:19,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d8ac98b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:19, skipping insertion in model container [2024-11-09 20:50:19,546 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:50:19" (1/1) ... [2024-11-09 20:50:19,572 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 20:50:19,830 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c[4225,4238] [2024-11-09 20:50:19,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 20:50:19,855 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 20:50:19,918 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c[4225,4238] [2024-11-09 20:50:19,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 20:50:19,952 INFO L204 MainTranslator]: Completed translation [2024-11-09 20:50:19,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:19 WrapperNode [2024-11-09 20:50:19,953 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 20:50:19,954 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 20:50:19,954 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 20:50:19,955 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 20:50:19,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:19" (1/1) ... [2024-11-09 20:50:19,976 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:19" (1/1) ... [2024-11-09 20:50:20,008 INFO L138 Inliner]: procedures = 21, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 218 [2024-11-09 20:50:20,009 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 20:50:20,009 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 20:50:20,010 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 20:50:20,010 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 20:50:20,019 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:19" (1/1) ... [2024-11-09 20:50:20,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:19" (1/1) ... [2024-11-09 20:50:20,025 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:19" (1/1) ... [2024-11-09 20:50:20,045 INFO L175 MemorySlicer]: Split 16 memory accesses to 8 slices as follows [2, 2, 2, 2, 2, 2, 2, 2]. 13 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0]. The 7 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1]. [2024-11-09 20:50:20,046 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:19" (1/1) ... [2024-11-09 20:50:20,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:19" (1/1) ... [2024-11-09 20:50:20,065 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:19" (1/1) ... [2024-11-09 20:50:20,066 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:19" (1/1) ... [2024-11-09 20:50:20,069 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:19" (1/1) ... [2024-11-09 20:50:20,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:19" (1/1) ... [2024-11-09 20:50:20,085 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 20:50:20,088 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 20:50:20,088 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 20:50:20,089 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 20:50:20,089 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:19" (1/1) ... [2024-11-09 20:50:20,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 20:50:20,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 20:50:20,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 20:50:20,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 20:50:20,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 20:50:20,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-09 20:50:20,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-09 20:50:20,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-09 20:50:20,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-09 20:50:20,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-09 20:50:20,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-09 20:50:20,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-09 20:50:20,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-09 20:50:20,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 20:50:20,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-09 20:50:20,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-09 20:50:20,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-09 20:50:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-09 20:50:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-09 20:50:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-09 20:50:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-09 20:50:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-09 20:50:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-09 20:50:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-09 20:50:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-09 20:50:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-09 20:50:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-09 20:50:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-09 20:50:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-09 20:50:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-09 20:50:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 20:50:20,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 20:50:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-09 20:50:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-09 20:50:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-09 20:50:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-09 20:50:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-09 20:50:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-09 20:50:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-09 20:50:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-09 20:50:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-09 20:50:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-09 20:50:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-09 20:50:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-09 20:50:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-09 20:50:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-09 20:50:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-09 20:50:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-09 20:50:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 20:50:20,358 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 20:50:20,360 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 20:50:54,488 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2024-11-09 20:50:54,489 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 20:50:54,501 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 20:50:54,501 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 20:50:54,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:50:54 BoogieIcfgContainer [2024-11-09 20:50:54,502 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 20:50:54,505 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 20:50:54,505 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 20:50:54,508 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 20:50:54,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:50:19" (1/3) ... [2024-11-09 20:50:54,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1d2b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:50:54, skipping insertion in model container [2024-11-09 20:50:54,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:19" (2/3) ... [2024-11-09 20:50:54,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1d2b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:50:54, skipping insertion in model container [2024-11-09 20:50:54,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:50:54" (3/3) ... [2024-11-09 20:50:54,511 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0960a.c [2024-11-09 20:50:54,524 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 20:50:54,524 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 20:50:54,589 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 20:50:54,597 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;@7784fb14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 20:50:54,598 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 20:50:54,601 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.673913043478261) internal successors, (77), 47 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:50:54,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 20:50:54,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:50:54,609 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:50:54,609 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:50:54,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:50:54,616 INFO L85 PathProgramCache]: Analyzing trace with hash -155453989, now seen corresponding path program 1 times [2024-11-09 20:50:54,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 20:50:54,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228826892] [2024-11-09 20:50:54,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:50:54,629 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 20:50:54,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 20:50:54,633 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 20:50:54,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 20:50:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:50:55,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 20:50:55,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 20:50:55,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:50:55,271 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 20:50:55,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 20:50:55,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1228826892] [2024-11-09 20:50:55,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1228826892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:50:55,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:50:55,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 20:50:55,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398352451] [2024-11-09 20:50:55,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:50:55,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 20:50:55,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 20:50:55,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 20:50:55,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 20:50:55,307 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.673913043478261) internal successors, (77), 47 states have internal predecessors, (77), 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) [2024-11-09 20:50:55,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:50:55,324 INFO L93 Difference]: Finished difference Result 93 states and 151 transitions. [2024-11-09 20:50:55,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 20:50:55,326 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 [2024-11-09 20:50:55,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:50:55,335 INFO L225 Difference]: With dead ends: 93 [2024-11-09 20:50:55,335 INFO L226 Difference]: Without dead ends: 44 [2024-11-09 20:50:55,340 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 [2024-11-09 20:50:55,344 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 20:50:55,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 20:50:55,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-09 20:50:55,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-09 20:50:55,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:50:55,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2024-11-09 20:50:55,387 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 11 [2024-11-09 20:50:55,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:50:55,389 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2024-11-09 20:50:55,389 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) [2024-11-09 20:50:55,390 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2024-11-09 20:50:55,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 20:50:55,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:50:55,391 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:50:55,411 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 20:50:55,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 20:50:55,593 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:50:55,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:50:55,594 INFO L85 PathProgramCache]: Analyzing trace with hash 13361488, now seen corresponding path program 1 times [2024-11-09 20:50:55,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 20:50:55,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033337180] [2024-11-09 20:50:55,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:50:55,595 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 20:50:55,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 20:50:55,599 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 20:50:55,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 20:50:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:50:56,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 20:50:56,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 20:50:57,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:50:57,643 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 20:50:57,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 20:50:57,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033337180] [2024-11-09 20:50:57,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033337180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:50:57,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:50:57,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 20:50:57,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109189383] [2024-11-09 20:50:57,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:50:57,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 20:50:57,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 20:50:57,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 20:50:57,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 20:50:57,649 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:51:01,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 20:51:06,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 20:51:10,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:51:14,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 20:51:18,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:51:22,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:51:26,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 20:51:32,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 20:51:36,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:51:40,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 20:51:44,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:51:48,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:51:52,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 20:51:53,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []