./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1270b.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_1270b.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 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 20:52:16,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 20:52:16,861 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 20:52:16,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 20:52:16,864 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 20:52:16,892 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 20:52:16,892 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 20:52:16,892 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 20:52:16,893 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 20:52:16,897 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 20:52:16,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 20:52:16,898 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 20:52:16,898 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 20:52:16,899 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 20:52:16,899 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 20:52:16,899 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 20:52:16,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 20:52:16,899 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 20:52:16,900 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 20:52:16,900 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 20:52:16,900 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 20:52:16,903 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 20:52:16,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 20:52:16,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 20:52:16,903 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 20:52:16,904 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 20:52:16,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 20:52:16,904 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 20:52:16,904 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 20:52:16,904 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 20:52:16,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 20:52:16,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 20:52:16,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 20:52:16,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 20:52:16,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 20:52:16,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 20:52:16,906 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 20:52:16,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 20:52:16,906 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 20:52:16,907 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 20:52:16,907 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 20:52:16,907 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 20:52:16,908 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e [2024-11-09 20:52:17,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 20:52:17,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 20:52:17,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 20:52:17,136 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 20:52:17,136 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 20:52:17,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2024-11-09 20:52:18,633 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 20:52:18,803 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 20:52:18,804 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2024-11-09 20:52:18,816 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d67fe9368/933746644f024c4d8a4d6919fc45177a/FLAGd93549ddc [2024-11-09 20:52:19,203 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d67fe9368/933746644f024c4d8a4d6919fc45177a [2024-11-09 20:52:19,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 20:52:19,206 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 20:52:19,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 20:52:19,207 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 20:52:19,211 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 20:52:19,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:52:19" (1/1) ... [2024-11-09 20:52:19,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3174136c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:19, skipping insertion in model container [2024-11-09 20:52:19,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:52:19" (1/1) ... [2024-11-09 20:52:19,240 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 20:52:19,402 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_1270b.c[4704,4717] [2024-11-09 20:52:19,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 20:52:19,415 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 20:52:19,447 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_1270b.c[4704,4717] [2024-11-09 20:52:19,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 20:52:19,461 INFO L204 MainTranslator]: Completed translation [2024-11-09 20:52:19,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:19 WrapperNode [2024-11-09 20:52:19,461 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 20:52:19,462 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 20:52:19,463 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 20:52:19,463 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 20:52:19,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:19" (1/1) ... [2024-11-09 20:52:19,479 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:19" (1/1) ... [2024-11-09 20:52:19,503 INFO L138 Inliner]: procedures = 18, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 254 [2024-11-09 20:52:19,503 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 20:52:19,504 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 20:52:19,504 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 20:52:19,504 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 20:52:19,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:19" (1/1) ... [2024-11-09 20:52:19,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:19" (1/1) ... [2024-11-09 20:52:19,520 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:19" (1/1) ... [2024-11-09 20:52:19,536 INFO L175 MemorySlicer]: Split 34 memory accesses to 17 slices as follows [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]. 6 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 16 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2024-11-09 20:52:19,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:19" (1/1) ... [2024-11-09 20:52:19,537 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:19" (1/1) ... [2024-11-09 20:52:19,547 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:19" (1/1) ... [2024-11-09 20:52:19,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:19" (1/1) ... [2024-11-09 20:52:19,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:19" (1/1) ... [2024-11-09 20:52:19,553 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:19" (1/1) ... [2024-11-09 20:52:19,557 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 20:52:19,563 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 20:52:19,563 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 20:52:19,563 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 20:52:19,591 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:19" (1/1) ... [2024-11-09 20:52:19,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 20:52:19,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 20:52:19,665 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 20:52:19,667 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 20:52:19,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 20:52:19,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 20:52:19,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 20:52:19,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 20:52:19,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 20:52:19,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 20:52:19,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 20:52:19,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-09 20:52:19,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-09 20:52:19,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-09 20:52:19,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-09 20:52:19,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-09 20:52:19,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-09 20:52:19,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-09 20:52:19,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-09 20:52:19,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-09 20:52:19,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-09 20:52:19,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-09 20:52:19,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 20:52:19,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-09 20:52:19,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-09 20:52:19,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-09 20:52:19,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-09 20:52:19,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-09 20:52:19,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-09 20:52:19,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-09 20:52:19,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-09 20:52:19,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-09 20:52:19,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-09 20:52:19,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-09 20:52:19,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-11-09 20:52:19,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-11-09 20:52:19,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-11-09 20:52:19,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2024-11-09 20:52:19,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2024-11-09 20:52:19,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2024-11-09 20:52:19,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 20:52:19,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 20:52:19,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 20:52:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 20:52:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 20:52:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 20:52:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-09 20:52:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-09 20:52:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-09 20:52:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-09 20:52:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-09 20:52:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-09 20:52:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-09 20:52:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-09 20:52:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-09 20:52:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-09 20:52:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-09 20:52:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-09 20:52:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-09 20:52:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-09 20:52:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-09 20:52:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-09 20:52:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-09 20:52:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-09 20:52:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-09 20:52:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-09 20:52:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-09 20:52:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-09 20:52:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-11-09 20:52:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-11-09 20:52:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-11-09 20:52:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2024-11-09 20:52:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2024-11-09 20:52:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2024-11-09 20:52:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 20:52:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 20:52:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 20:52:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 20:52:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 20:52:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 20:52:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 20:52:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 20:52:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-09 20:52:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-09 20:52:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-09 20:52:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-09 20:52:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-09 20:52:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-09 20:52:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-09 20:52:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-09 20:52:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-09 20:52:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-09 20:52:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-09 20:52:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 20:52:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-09 20:52:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-09 20:52:19,854 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 20:52:19,856 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 20:52:20,168 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-09 20:52:20,169 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 20:52:20,188 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 20:52:20,189 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 20:52:20,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:52:20 BoogieIcfgContainer [2024-11-09 20:52:20,189 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 20:52:20,190 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 20:52:20,190 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 20:52:20,193 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 20:52:20,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:52:19" (1/3) ... [2024-11-09 20:52:20,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a650ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:52:20, skipping insertion in model container [2024-11-09 20:52:20,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:19" (2/3) ... [2024-11-09 20:52:20,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a650ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:52:20, skipping insertion in model container [2024-11-09 20:52:20,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:52:20" (3/3) ... [2024-11-09 20:52:20,196 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270b.c [2024-11-09 20:52:20,208 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 20:52:20,209 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 20:52:20,251 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 20:52:20,256 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;@eb53928, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 20:52:20,256 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 20:52:20,260 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 93 states have (on average 1.6666666666666667) internal successors, (155), 94 states have internal predecessors, (155), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 20:52:20,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 20:52:20,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:52:20,265 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:52:20,266 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:52:20,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:52:20,269 INFO L85 PathProgramCache]: Analyzing trace with hash 34824845, now seen corresponding path program 1 times [2024-11-09 20:52:20,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:52:20,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339735818] [2024-11-09 20:52:20,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:52:20,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:52:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:52:20,495 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 20:52:20,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:52:20,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339735818] [2024-11-09 20:52:20,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339735818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:52:20,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:52:20,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 20:52:20,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104052800] [2024-11-09 20:52:20,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:52:20,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 20:52:20,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:52:20,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 20:52:20,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 20:52:20,554 INFO L87 Difference]: Start difference. First operand has 98 states, 93 states have (on average 1.6666666666666667) internal successors, (155), 94 states have internal predecessors, (155), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 20:52:20,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:52:20,611 INFO L93 Difference]: Finished difference Result 193 states and 317 transitions. [2024-11-09 20:52:20,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 20:52:20,619 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2024-11-09 20:52:20,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:52:20,634 INFO L225 Difference]: With dead ends: 193 [2024-11-09 20:52:20,634 INFO L226 Difference]: Without dead ends: 94 [2024-11-09 20:52:20,642 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 20:52:20,645 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 20:52:20,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 20:52:20,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-09 20:52:20,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-09 20:52:20,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 90 states have (on average 1.2777777777777777) internal successors, (115), 90 states have internal predecessors, (115), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 20:52:20,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 119 transitions. [2024-11-09 20:52:20,721 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 119 transitions. Word has length 16 [2024-11-09 20:52:20,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:52:20,721 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 119 transitions. [2024-11-09 20:52:20,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 20:52:20,722 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 119 transitions. [2024-11-09 20:52:20,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 20:52:20,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:52:20,722 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:52:20,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 20:52:20,723 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:52:20,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:52:20,727 INFO L85 PathProgramCache]: Analyzing trace with hash -22157578, now seen corresponding path program 1 times [2024-11-09 20:52:20,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:52:20,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269094211] [2024-11-09 20:52:20,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:52:20,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:52:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 20:52:20,882 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 20:52:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 20:52:21,021 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 20:52:21,022 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 20:52:21,023 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 20:52:21,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 20:52:21,030 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 20:52:21,062 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 20:52:21,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 08:52:21 BoogieIcfgContainer [2024-11-09 20:52:21,069 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 20:52:21,070 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 20:52:21,070 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 20:52:21,070 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 20:52:21,074 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:52:20" (3/4) ... [2024-11-09 20:52:21,076 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-09 20:52:21,077 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 20:52:21,077 INFO L158 Benchmark]: Toolchain (without parser) took 1870.91ms. Allocated memory is still 192.9MB. Free memory was 121.9MB in the beginning and 88.9MB in the end (delta: 33.0MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2024-11-09 20:52:21,077 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory is still 149.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 20:52:21,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.57ms. Allocated memory is still 192.9MB. Free memory was 121.6MB in the beginning and 105.7MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 20:52:21,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.03ms. Allocated memory is still 192.9MB. Free memory was 105.7MB in the beginning and 103.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 20:52:21,078 INFO L158 Benchmark]: Boogie Preprocessor took 53.43ms. Allocated memory is still 192.9MB. Free memory was 103.3MB in the beginning and 98.8MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 20:52:21,078 INFO L158 Benchmark]: IcfgBuilder took 626.56ms. Allocated memory is still 192.9MB. Free memory was 98.8MB in the beginning and 129.7MB in the end (delta: -30.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 20:52:21,079 INFO L158 Benchmark]: TraceAbstraction took 878.76ms. Allocated memory is still 192.9MB. Free memory was 128.7MB in the beginning and 89.9MB in the end (delta: 38.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-09 20:52:21,079 INFO L158 Benchmark]: Witness Printer took 7.27ms. Allocated memory is still 192.9MB. Free memory was 89.9MB in the beginning and 88.9MB in the end (delta: 967.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 20:52:21,080 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory is still 149.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.57ms. Allocated memory is still 192.9MB. Free memory was 121.6MB in the beginning and 105.7MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.03ms. Allocated memory is still 192.9MB. Free memory was 105.7MB in the beginning and 103.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.43ms. Allocated memory is still 192.9MB. Free memory was 103.3MB in the beginning and 98.8MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 626.56ms. Allocated memory is still 192.9MB. Free memory was 98.8MB in the beginning and 129.7MB in the end (delta: -30.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 878.76ms. Allocated memory is still 192.9MB. Free memory was 128.7MB in the beginning and 89.9MB in the end (delta: 38.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 7.27ms. Allocated memory is still 192.9MB. Free memory was 89.9MB in the beginning and 88.9MB in the end (delta: 967.5kB). 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: 237]: 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 120. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L231] float x = -1.0f / 0.0f; [L232] float y = __VERIFIER_nondet_float(); [L234] CALL, EXPR __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450972, y=6442450970] [L88] ieee_float_shape_type gf_u; [L89] gf_u.value = (x) [L90] EXPR gf_u.word [L90] (ha) = gf_u.word [L91] COND FALSE !(0) VAL [ha=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450972, y=6442450970] [L92] ha &= 0x7fffffffL VAL [ha=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450972, y=6442450970] [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (y) [L96] EXPR gf_u.word [L96] (hb) = gf_u.word [L97] COND FALSE !(0) VAL [ha=0, hb=-1895825407, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450972, y=6442450970] [L98] hb &= 0x7fffffffL VAL [ha=0, hb=251658241, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450972, y=6442450970] [L99] COND TRUE hb > ha [L100] a = y [L101] b = x [L102] j = ha [L103] ha = hb [L104] hb = j VAL [a=6442450970, b=6442450972, ha=251658241, hb=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L110] ieee_float_shape_type sf_u; [L111] sf_u.word = (ha) [L112] EXPR sf_u.value [L112] (a) = sf_u.value [L113] COND FALSE !(0) VAL [a=6442450971, b=6442450972, ha=251658241, hb=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L115] ieee_float_shape_type sf_u; [L116] sf_u.word = (hb) [L117] EXPR sf_u.value [L117] (b) = sf_u.value [L118] COND FALSE !(0) VAL [a=6442450971, b=6442450973, ha=251658241, hb=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [a=6442450971, b=6442450973, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L234] RET, EXPR __ieee754_hypotf(x, y) [L234] float res = __ieee754_hypotf(x, y); [L236] CALL, EXPR isinf_float(res) [L214] __int32_t ix; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450969] [L216] ieee_float_shape_type gf_u; [L217] gf_u.value = (x) [L218] EXPR gf_u.word [L218] (ix) = gf_u.word [L219] COND FALSE !(0) VAL [ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450969] [L220] ix &= 0x7fffffff [L221] return ((ix) == 0x7f800000L); VAL [\result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450969] [L236] RET, EXPR isinf_float(res) [L236] COND TRUE !isinf_float(res) [L237] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 98 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 120 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 120 mSDtfsCounter, 2 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=98occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 20:52:21,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1270b.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 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 20:52:23,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 20:52:23,280 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-09 20:52:23,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 20:52:23,285 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 20:52:23,306 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 20:52:23,307 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 20:52:23,308 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 20:52:23,308 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 20:52:23,311 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 20:52:23,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 20:52:23,312 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 20:52:23,312 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 20:52:23,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 20:52:23,313 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 20:52:23,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 20:52:23,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 20:52:23,313 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 20:52:23,313 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 20:52:23,314 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 20:52:23,314 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 20:52:23,315 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 20:52:23,315 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 20:52:23,315 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 20:52:23,316 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 20:52:23,316 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 20:52:23,316 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 20:52:23,316 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 20:52:23,316 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 20:52:23,317 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 20:52:23,317 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 20:52:23,317 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 20:52:23,318 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 20:52:23,318 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 20:52:23,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 20:52:23,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 20:52:23,319 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 20:52:23,319 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 20:52:23,319 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-09 20:52:23,320 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 20:52:23,320 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 20:52:23,320 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 20:52:23,320 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 20:52:23,320 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 20:52:23,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e [2024-11-09 20:52:23,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 20:52:23,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 20:52:23,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 20:52:23,633 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 20:52:23,634 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 20:52:23,635 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2024-11-09 20:52:25,062 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 20:52:25,203 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 20:52:25,204 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2024-11-09 20:52:25,210 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50a310c95/9a35f6a427024ae2abe776cf9a883836/FLAG94f33af7f [2024-11-09 20:52:25,622 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50a310c95/9a35f6a427024ae2abe776cf9a883836 [2024-11-09 20:52:25,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 20:52:25,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 20:52:25,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 20:52:25,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 20:52:25,630 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 20:52:25,631 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:52:25" (1/1) ... [2024-11-09 20:52:25,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c0714b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:25, skipping insertion in model container [2024-11-09 20:52:25,631 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:52:25" (1/1) ... [2024-11-09 20:52:25,649 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 20:52:25,798 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_1270b.c[4704,4717] [2024-11-09 20:52:25,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 20:52:25,817 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 20:52:25,846 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_1270b.c[4704,4717] [2024-11-09 20:52:25,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 20:52:25,861 INFO L204 MainTranslator]: Completed translation [2024-11-09 20:52:25,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:25 WrapperNode [2024-11-09 20:52:25,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 20:52:25,862 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 20:52:25,862 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 20:52:25,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 20:52:25,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:25" (1/1) ... [2024-11-09 20:52:25,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:25" (1/1) ... [2024-11-09 20:52:25,894 INFO L138 Inliner]: procedures = 21, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 254 [2024-11-09 20:52:25,894 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 20:52:25,895 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 20:52:25,895 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 20:52:25,895 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 20:52:25,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:25" (1/1) ... [2024-11-09 20:52:25,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:25" (1/1) ... [2024-11-09 20:52:25,907 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:25" (1/1) ... [2024-11-09 20:52:25,937 INFO L175 MemorySlicer]: Split 34 memory accesses to 17 slices as follows [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]. 6 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 16 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2024-11-09 20:52:25,937 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:25" (1/1) ... [2024-11-09 20:52:25,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:25" (1/1) ... [2024-11-09 20:52:25,948 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:25" (1/1) ... [2024-11-09 20:52:25,949 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:25" (1/1) ... [2024-11-09 20:52:25,951 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:25" (1/1) ... [2024-11-09 20:52:25,953 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:25" (1/1) ... [2024-11-09 20:52:25,957 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 20:52:25,958 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 20:52:25,958 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 20:52:25,958 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 20:52:25,958 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:25" (1/1) ... [2024-11-09 20:52:25,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 20:52:25,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 20:52:25,983 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 20:52:25,986 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 20:52:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 20:52:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-09 20:52:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-09 20:52:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-09 20:52:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-09 20:52:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-09 20:52:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-09 20:52:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-09 20:52:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-09 20:52:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-09 20:52:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-09 20:52:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-09 20:52:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-09 20:52:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2024-11-09 20:52:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2024-11-09 20:52:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2024-11-09 20:52:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2024-11-09 20:52:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2024-11-09 20:52:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 20:52:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-09 20:52:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-09 20:52:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-09 20:52:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-09 20:52:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-09 20:52:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-09 20:52:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-09 20:52:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-09 20:52:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-09 20:52:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-09 20:52:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-09 20:52:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-09 20:52:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2024-11-09 20:52:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#13 [2024-11-09 20:52:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#14 [2024-11-09 20:52:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#15 [2024-11-09 20:52:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#16 [2024-11-09 20:52:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-09 20:52:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-09 20:52:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-09 20:52:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-09 20:52:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-09 20:52:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-09 20:52:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-09 20:52:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-09 20:52:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-09 20:52:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-09 20:52:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-09 20:52:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-09 20:52:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2024-11-09 20:52:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2024-11-09 20:52:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2024-11-09 20:52:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2024-11-09 20:52:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2024-11-09 20:52:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 20:52:26,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 20:52:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-09 20:52:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-09 20:52:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-09 20:52:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-09 20:52:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-09 20:52:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-09 20:52:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-09 20:52:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-09 20:52:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-09 20:52:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-09 20:52:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-09 20:52:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-09 20:52:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2024-11-09 20:52:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#13 [2024-11-09 20:52:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#14 [2024-11-09 20:52:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#15 [2024-11-09 20:52:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#16 [2024-11-09 20:52:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-09 20:52:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-09 20:52:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-09 20:52:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-09 20:52:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-09 20:52:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-09 20:52:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-09 20:52:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-09 20:52:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-09 20:52:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-09 20:52:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-11-09 20:52:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2024-11-09 20:52:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2024-11-09 20:52:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2024-11-09 20:52:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2024-11-09 20:52:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#15 [2024-11-09 20:52:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#16 [2024-11-09 20:52:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 20:52:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-09 20:52:26,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-09 20:52:26,204 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 20:52:26,206 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 20:52:27,466 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-09 20:52:27,466 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 20:52:27,476 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 20:52:27,477 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 20:52:27,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:52:27 BoogieIcfgContainer [2024-11-09 20:52:27,477 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 20:52:27,479 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 20:52:27,479 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 20:52:27,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 20:52:27,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:52:25" (1/3) ... [2024-11-09 20:52:27,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33632c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:52:27, skipping insertion in model container [2024-11-09 20:52:27,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:52:25" (2/3) ... [2024-11-09 20:52:27,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33632c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:52:27, skipping insertion in model container [2024-11-09 20:52:27,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:52:27" (3/3) ... [2024-11-09 20:52:27,484 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270b.c [2024-11-09 20:52:27,496 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 20:52:27,496 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 20:52:27,547 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 20:52:27,552 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;@f50deb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 20:52:27,552 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 20:52:27,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 86 states have (on average 1.6744186046511629) internal successors, (144), 87 states have internal predecessors, (144), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 20:52:27,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 20:52:27,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:52:27,586 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:52:27,586 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:52:27,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:52:27,590 INFO L85 PathProgramCache]: Analyzing trace with hash 2025371021, now seen corresponding path program 1 times [2024-11-09 20:52:27,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 20:52:27,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446006247] [2024-11-09 20:52:27,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:52:27,599 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 20:52:27,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 20:52:27,602 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 20:52:27,709 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 20:52:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:52:27,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 20:52:27,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 20:52:27,882 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 20:52:27,882 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 20:52:27,882 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 20:52:27,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446006247] [2024-11-09 20:52:27,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446006247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:52:27,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:52:27,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 20:52:27,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54757714] [2024-11-09 20:52:27,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:52:27,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 20:52:27,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 20:52:27,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 20:52:27,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 20:52:27,903 INFO L87 Difference]: Start difference. First operand has 91 states, 86 states have (on average 1.6744186046511629) internal successors, (144), 87 states have internal predecessors, (144), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 20:52:27,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:52:27,923 INFO L93 Difference]: Finished difference Result 179 states and 295 transitions. [2024-11-09 20:52:27,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 20:52:27,925 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2024-11-09 20:52:27,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:52:27,930 INFO L225 Difference]: With dead ends: 179 [2024-11-09 20:52:27,930 INFO L226 Difference]: Without dead ends: 87 [2024-11-09 20:52:27,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 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 20:52:27,934 INFO L432 NwaCegarLoop]: 112 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, 112 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 20:52:27,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 20:52:27,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-09 20:52:27,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-09 20:52:27,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 83 states have (on average 1.2650602409638554) internal successors, (105), 83 states have internal predecessors, (105), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 20:52:27,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 109 transitions. [2024-11-09 20:52:27,961 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 109 transitions. Word has length 16 [2024-11-09 20:52:27,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:52:27,961 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 109 transitions. [2024-11-09 20:52:27,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 20:52:27,962 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 109 transitions. [2024-11-09 20:52:27,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 20:52:27,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:52:27,962 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:52:27,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-09 20:52:28,163 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 20:52:28,164 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:52:28,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:52:28,165 INFO L85 PathProgramCache]: Analyzing trace with hash -2002311383, now seen corresponding path program 1 times [2024-11-09 20:52:28,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 20:52:28,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326244135] [2024-11-09 20:52:28,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:52:28,166 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 20:52:28,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 20:52:28,168 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 20:52:28,170 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 20:52:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:52:28,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 20:52:28,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 20:52:29,228 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 20:52:29,228 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 20:52:29,228 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 20:52:29,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326244135] [2024-11-09 20:52:29,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326244135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:52:29,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:52:29,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 20:52:29,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483549744] [2024-11-09 20:52:29,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:52:29,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 20:52:29,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 20:52:29,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 20:52:29,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 20:52:29,231 INFO L87 Difference]: Start difference. First operand 87 states and 109 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:52:34,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:52:37,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:52:42,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:52:46,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:52:50,117 WARN L539 Checker$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 20:52:50,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:52:50,119 INFO L93 Difference]: Finished difference Result 186 states and 234 transitions. [2024-11-09 20:52:50,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 20:52:50,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-09 20:52:50,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:52:50,171 INFO L225 Difference]: With dead ends: 186 [2024-11-09 20:52:50,171 INFO L226 Difference]: Without dead ends: 116 [2024-11-09 20:52:50,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 20:52:50,173 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 38 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2024-11-09 20:52:50,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 500 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 168 Invalid, 4 Unknown, 0 Unchecked, 20.7s Time] [2024-11-09 20:52:50,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-09 20:52:50,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 96. [2024-11-09 20:52:50,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 92 states have (on average 1.2391304347826086) internal successors, (114), 92 states have internal predecessors, (114), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 20:52:50,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 118 transitions. [2024-11-09 20:52:50,190 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 118 transitions. Word has length 21 [2024-11-09 20:52:50,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:52:50,190 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 118 transitions. [2024-11-09 20:52:50,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:52:50,191 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 118 transitions. [2024-11-09 20:52:50,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 20:52:50,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:52:50,191 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:52:50,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-09 20:52:50,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 20:52:50,393 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:52:50,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:52:50,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1999252906, now seen corresponding path program 1 times [2024-11-09 20:52:50,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 20:52:50,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813708121] [2024-11-09 20:52:50,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:52:50,394 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 20:52:50,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 20:52:50,396 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 20:52:50,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 20:52:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:52:50,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 20:52:50,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 20:52:55,011 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 20:52:55,011 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 20:52:55,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 20:52:55,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [813708121] [2024-11-09 20:52:55,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [813708121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:52:55,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:52:55,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 20:52:55,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603581799] [2024-11-09 20:52:55,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:52:55,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 20:52:55,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 20:52:55,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 20:52:55,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-09 20:52:55,013 INFO L87 Difference]: Start difference. First operand 96 states and 118 transitions. Second operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:53:05,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:53:09,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 20:53:11,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:53:17,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:53:21,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 20:53:25,007 WARN L539 Checker$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 20:53:29,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:53:33,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 20:53:37,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:53:41,026 WARN L539 Checker$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 20:53:45,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:53:49,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 20:53:53,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:53:57,046 WARN L539 Checker$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 20:54:01,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers []