./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270a.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 cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 19:34:49,463 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 19:34:49,544 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 19:34:49,548 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 19:34:49,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 19:34:49,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 19:34:49,587 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 19:34:49,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 19:34:49,588 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 19:34:49,589 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 19:34:49,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 19:34:49,590 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 19:34:49,591 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 19:34:49,591 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 19:34:49,591 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 19:34:49,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 19:34:49,592 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 19:34:49,592 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 19:34:49,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 19:34:49,593 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 19:34:49,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 19:34:49,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 19:34:49,594 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 19:34:49,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 19:34:49,595 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 19:34:49,595 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 19:34:49,595 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 19:34:49,596 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 19:34:49,596 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 19:34:49,596 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 19:34:49,596 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 19:34:49,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 19:34:49,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:34:49,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 19:34:49,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 19:34:49,598 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 19:34:49,599 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 19:34:49,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 19:34:49,599 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 19:34:49,599 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 19:34:49,600 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 19:34:49,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 19:34:49,601 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c [2024-11-19 19:34:49,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 19:34:49,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 19:34:49,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 19:34:49,877 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 19:34:49,878 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 19:34:49,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2024-11-19 19:34:51,384 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 19:34:51,554 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 19:34:51,554 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2024-11-19 19:34:51,562 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a973f12cf/954a3981469d4b1daf916dc83acb01f1/FLAG3caac5e83 [2024-11-19 19:34:51,574 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a973f12cf/954a3981469d4b1daf916dc83acb01f1 [2024-11-19 19:34:51,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 19:34:51,577 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 19:34:51,578 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 19:34:51,579 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 19:34:51,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 19:34:51,583 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:51" (1/1) ... [2024-11-19 19:34:51,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4782042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:51, skipping insertion in model container [2024-11-19 19:34:51,584 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:51" (1/1) ... [2024-11-19 19:34:51,606 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 19:34:51,855 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_1270a.c[4702,4715] [2024-11-19 19:34:51,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:34:51,868 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 19:34:51,936 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_1270a.c[4702,4715] [2024-11-19 19:34:51,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:34:51,961 INFO L204 MainTranslator]: Completed translation [2024-11-19 19:34:51,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:51 WrapperNode [2024-11-19 19:34:51,962 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 19:34:51,964 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 19:34:51,964 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 19:34:51,964 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 19:34:51,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:51" (1/1) ... [2024-11-19 19:34:51,985 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:51" (1/1) ... [2024-11-19 19:34:52,017 INFO L138 Inliner]: procedures = 18, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 268 [2024-11-19 19:34:52,018 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 19:34:52,018 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 19:34:52,018 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 19:34:52,019 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 19:34:52,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:51" (1/1) ... [2024-11-19 19:34:52,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:51" (1/1) ... [2024-11-19 19:34:52,042 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:51" (1/1) ... [2024-11-19 19:34:52,073 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]. [2024-11-19 19:34:52,074 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:51" (1/1) ... [2024-11-19 19:34:52,074 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:51" (1/1) ... [2024-11-19 19:34:52,089 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:51" (1/1) ... [2024-11-19 19:34:52,093 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:51" (1/1) ... [2024-11-19 19:34:52,096 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:51" (1/1) ... [2024-11-19 19:34:52,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:51" (1/1) ... [2024-11-19 19:34:52,102 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 19:34:52,102 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 19:34:52,102 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 19:34:52,102 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 19:34:52,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:51" (1/1) ... [2024-11-19 19:34:52,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:34:52,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 19:34:52,140 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) [2024-11-19 19:34:52,143 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 [2024-11-19 19:34:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 19:34:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 19:34:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 19:34:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 19:34:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 19:34:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 19:34:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 19:34:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 19:34:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 19:34:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-19 19:34:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-19 19:34:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-19 19:34:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-19 19:34:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-19 19:34:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-19 19:34:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-19 19:34:52,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-19 19:34:52,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-19 19:34:52,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 19:34:52,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-19 19:34:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-19 19:34:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-19 19:34:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-19 19:34:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-19 19:34:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-19 19:34:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-19 19:34:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-19 19:34:52,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-19 19:34:52,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-19 19:34:52,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-19 19:34:52,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-11-19 19:34:52,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-11-19 19:34:52,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-11-19 19:34:52,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2024-11-19 19:34:52,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2024-11-19 19:34:52,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2024-11-19 19:34:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 19:34:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 19:34:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 19:34:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 19:34:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 19:34:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 19:34:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 19:34:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 19:34:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-19 19:34:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-19 19:34:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-19 19:34:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-19 19:34:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-19 19:34:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-19 19:34:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-19 19:34:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-19 19:34:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-19 19:34:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-19 19:34:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-19 19:34:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-19 19:34:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-19 19:34:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-19 19:34:52,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-19 19:34:52,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-19 19:34:52,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-19 19:34:52,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-19 19:34:52,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-19 19:34:52,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-19 19:34:52,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-11-19 19:34:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-11-19 19:34:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-11-19 19:34:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2024-11-19 19:34:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2024-11-19 19:34:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2024-11-19 19:34:52,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 19:34:52,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 19:34:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 19:34:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 19:34:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 19:34:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 19:34:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 19:34:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 19:34:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 19:34:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 19:34:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-19 19:34:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-19 19:34:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-19 19:34:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-19 19:34:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-19 19:34:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-19 19:34:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-19 19:34:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-19 19:34:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-19 19:34:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 19:34:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-19 19:34:52,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-19 19:34:52,370 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 19:34:52,372 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 19:34:52,806 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-19 19:34:52,806 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 19:34:52,818 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 19:34:52,819 INFO L316 CfgBuilder]: Removed 34 assume(true) statements. [2024-11-19 19:34:52,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:52 BoogieIcfgContainer [2024-11-19 19:34:52,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 19:34:52,822 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 19:34:52,822 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 19:34:52,825 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 19:34:52,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:34:51" (1/3) ... [2024-11-19 19:34:52,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ab4f95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:52, skipping insertion in model container [2024-11-19 19:34:52,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:51" (2/3) ... [2024-11-19 19:34:52,827 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ab4f95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:52, skipping insertion in model container [2024-11-19 19:34:52,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:52" (3/3) ... [2024-11-19 19:34:52,829 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270a.c [2024-11-19 19:34:52,846 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 19:34:52,846 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 19:34:52,939 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 19:34:52,945 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;@6f01f0dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 19:34:52,946 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 19:34:52,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 91 states have (on average 1.6813186813186813) internal successors, (153), 92 states have internal predecessors, (153), 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) [2024-11-19 19:34:52,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-19 19:34:52,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:34:52,961 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:34:52,961 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:34:52,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:34:52,968 INFO L85 PathProgramCache]: Analyzing trace with hash -575632410, now seen corresponding path program 1 times [2024-11-19 19:34:52,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 19:34:52,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135674894] [2024-11-19 19:34:52,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:34:52,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 19:34:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:34:53,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 19:34:53,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 19:34:53,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135674894] [2024-11-19 19:34:53,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135674894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:34:53,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:34:53,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 19:34:53,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67122914] [2024-11-19 19:34:53,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:34:53,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 19:34:53,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 19:34:53,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 19:34:53,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 19:34:53,189 INFO L87 Difference]: Start difference. First operand has 96 states, 91 states have (on average 1.6813186813186813) internal successors, (153), 92 states have internal predecessors, (153), 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) [2024-11-19 19:34:53,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 19:34:53,227 INFO L93 Difference]: Finished difference Result 190 states and 314 transitions. [2024-11-19 19:34:53,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 19:34:53,229 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 [2024-11-19 19:34:53,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 19:34:53,238 INFO L225 Difference]: With dead ends: 190 [2024-11-19 19:34:53,238 INFO L226 Difference]: Without dead ends: 93 [2024-11-19 19:34:53,244 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 [2024-11-19 19:34:53,248 INFO L432 NwaCegarLoop]: 121 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, 121 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 [2024-11-19 19:34:53,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 19:34:53,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-19 19:34:53,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-19 19:34:53,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 89 states have (on average 1.2808988764044944) internal successors, (114), 89 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) [2024-11-19 19:34:53,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 118 transitions. [2024-11-19 19:34:53,288 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 118 transitions. Word has length 16 [2024-11-19 19:34:53,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 19:34:53,288 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 118 transitions. [2024-11-19 19:34:53,289 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) [2024-11-19 19:34:53,289 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 118 transitions. [2024-11-19 19:34:53,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-19 19:34:53,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:34:53,290 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] [2024-11-19 19:34:53,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 19:34:53,291 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:34:53,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:34:53,291 INFO L85 PathProgramCache]: Analyzing trace with hash 780916204, now seen corresponding path program 1 times [2024-11-19 19:34:53,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 19:34:53,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314144913] [2024-11-19 19:34:53,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:34:53,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 19:34:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 19:34:53,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 19:34:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 19:34:53,514 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 19:34:53,514 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 19:34:53,516 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 19:34:53,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 19:34:53,522 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-19 19:34:53,547 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 19:34:53,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:34:53 BoogieIcfgContainer [2024-11-19 19:34:53,552 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 19:34:53,553 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 19:34:53,553 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 19:34:53,554 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 19:34:53,555 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:52" (3/4) ... [2024-11-19 19:34:53,557 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-19 19:34:53,558 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 19:34:53,559 INFO L158 Benchmark]: Toolchain (without parser) took 1981.48ms. Allocated memory is still 153.1MB. Free memory was 104.2MB in the beginning and 84.2MB in the end (delta: 20.1MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2024-11-19 19:34:53,560 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 153.1MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:34:53,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.41ms. Allocated memory is still 153.1MB. Free memory was 104.2MB in the beginning and 88.0MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-19 19:34:53,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.14ms. Allocated memory is still 153.1MB. Free memory was 88.0MB in the beginning and 85.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 19:34:53,561 INFO L158 Benchmark]: Boogie Preprocessor took 83.31ms. Allocated memory is still 153.1MB. Free memory was 85.4MB in the beginning and 80.9MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 19:34:53,562 INFO L158 Benchmark]: RCFGBuilder took 717.30ms. Allocated memory is still 153.1MB. Free memory was 80.9MB in the beginning and 47.6MB in the end (delta: 33.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-19 19:34:53,562 INFO L158 Benchmark]: TraceAbstraction took 731.08ms. Allocated memory is still 153.1MB. Free memory was 46.7MB in the beginning and 84.2MB in the end (delta: -37.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:34:53,562 INFO L158 Benchmark]: Witness Printer took 5.11ms. Allocated memory is still 153.1MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:34:53,569 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 153.1MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.41ms. Allocated memory is still 153.1MB. Free memory was 104.2MB in the beginning and 88.0MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.14ms. Allocated memory is still 153.1MB. Free memory was 88.0MB in the beginning and 85.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.31ms. Allocated memory is still 153.1MB. Free memory was 85.4MB in the beginning and 80.9MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 717.30ms. Allocated memory is still 153.1MB. Free memory was 80.9MB in the beginning and 47.6MB in the end (delta: 33.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 731.08ms. Allocated memory is still 153.1MB. Free memory was 46.7MB in the beginning and 84.2MB in the end (delta: -37.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.11ms. Allocated memory is still 153.1MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 236]: 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(); [L233] 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=2399141917, y=2399141916] [L88] ieee_float_shape_type gf_u; [L89] gf_u.value = (x) [L90] EXPR gf_u.word [L90] (ha) = gf_u.word [L92] ha &= 0x7fffffffL VAL [ha=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2399141917, y=2399141916] [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (y) [L96] EXPR gf_u.word [L96] (hb) = gf_u.word [L98] hb &= 0x7fffffffL VAL [ha=0, hb=251658241, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2399141917, y=2399141916] [L99] COND TRUE hb > ha [L100] a = y [L101] b = x [L102] j = ha [L103] ha = hb [L104] hb = j VAL [a=2399141916, b=2399141917, 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 [L115] ieee_float_shape_type sf_u; [L116] sf_u.word = (hb) [L117] EXPR sf_u.value [L117] (b) = sf_u.value [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [a=2399141918, b=2399141914, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L233] RET, EXPR __ieee754_hypotf(x, y) [L233] float res = __ieee754_hypotf(x, y); [L235] CALL, EXPR isinf_float(res) [L214] __int32_t ix; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2399141915] [L216] ieee_float_shape_type gf_u; [L217] gf_u.value = (x) [L218] EXPR gf_u.word [L218] (ix) = gf_u.word [L220] ix &= 0x7fffffff [L221] return ((ix) == 0x7f800000L); VAL [\result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2399141915] [L235] RET, EXPR isinf_float(res) [L235] COND TRUE !isinf_float(res) [L236] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 121 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 121 mSDtfsCounter, 0 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=96occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 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 [2024-11-19 19:34:53,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270a.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 cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 19:34:55,793 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 19:34:55,868 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-19 19:34:55,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 19:34:55,877 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 19:34:55,913 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 19:34:55,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 19:34:55,914 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 19:34:55,916 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 19:34:55,917 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 19:34:55,917 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 19:34:55,917 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 19:34:55,918 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 19:34:55,918 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 19:34:55,920 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 19:34:55,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 19:34:55,921 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 19:34:55,921 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 19:34:55,921 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 19:34:55,921 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 19:34:55,922 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 19:34:55,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 19:34:55,926 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 19:34:55,926 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 19:34:55,926 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-19 19:34:55,926 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 19:34:55,927 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-19 19:34:55,927 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 19:34:55,927 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 19:34:55,927 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 19:34:55,928 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 19:34:55,928 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 19:34:55,928 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 19:34:55,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 19:34:55,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:34:55,929 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 19:34:55,929 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 19:34:55,930 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 19:34:55,930 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-19 19:34:55,930 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-19 19:34:55,930 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 19:34:55,931 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 19:34:55,931 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 19:34:55,931 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 19:34:55,931 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c [2024-11-19 19:34:56,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 19:34:56,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 19:34:56,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 19:34:56,291 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 19:34:56,291 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 19:34:56,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2024-11-19 19:34:57,852 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 19:34:58,066 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 19:34:58,067 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2024-11-19 19:34:58,078 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a88392fa/1c509b7072a541289f4aa8dcf573b040/FLAGb6500700a [2024-11-19 19:34:58,437 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a88392fa/1c509b7072a541289f4aa8dcf573b040 [2024-11-19 19:34:58,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 19:34:58,440 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 19:34:58,442 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 19:34:58,442 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 19:34:58,447 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 19:34:58,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:58" (1/1) ... [2024-11-19 19:34:58,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34a5671a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58, skipping insertion in model container [2024-11-19 19:34:58,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:58" (1/1) ... [2024-11-19 19:34:58,487 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 19:34:58,701 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_1270a.c[4702,4715] [2024-11-19 19:34:58,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:34:58,718 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 19:34:58,781 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_1270a.c[4702,4715] [2024-11-19 19:34:58,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:34:58,807 INFO L204 MainTranslator]: Completed translation [2024-11-19 19:34:58,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58 WrapperNode [2024-11-19 19:34:58,807 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 19:34:58,808 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 19:34:58,808 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 19:34:58,808 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 19:34:58,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2024-11-19 19:34:58,831 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2024-11-19 19:34:58,865 INFO L138 Inliner]: procedures = 21, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 268 [2024-11-19 19:34:58,868 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 19:34:58,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 19:34:58,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 19:34:58,871 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 19:34:58,881 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2024-11-19 19:34:58,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2024-11-19 19:34:58,892 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2024-11-19 19:34:58,931 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]. [2024-11-19 19:34:58,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2024-11-19 19:34:58,931 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2024-11-19 19:34:58,972 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2024-11-19 19:34:58,981 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2024-11-19 19:34:58,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2024-11-19 19:34:58,996 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2024-11-19 19:34:59,006 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 19:34:59,007 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 19:34:59,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 19:34:59,008 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 19:34:59,008 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2024-11-19 19:34:59,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:34:59,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 19:34:59,045 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) [2024-11-19 19:34:59,048 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 [2024-11-19 19:34:59,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 19:34:59,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-19 19:34:59,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-19 19:34:59,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-19 19:34:59,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-19 19:34:59,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-19 19:34:59,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-19 19:34:59,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-19 19:34:59,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-19 19:34:59,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-19 19:34:59,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-19 19:34:59,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-19 19:34:59,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-19 19:34:59,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2024-11-19 19:34:59,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2024-11-19 19:34:59,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2024-11-19 19:34:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2024-11-19 19:34:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2024-11-19 19:34:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 19:34:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-19 19:34:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-19 19:34:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-19 19:34:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-19 19:34:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-19 19:34:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-19 19:34:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-19 19:34:59,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-19 19:34:59,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-19 19:34:59,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-19 19:34:59,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-19 19:34:59,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-19 19:34:59,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2024-11-19 19:34:59,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#13 [2024-11-19 19:34:59,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#14 [2024-11-19 19:34:59,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#15 [2024-11-19 19:34:59,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#16 [2024-11-19 19:34:59,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-19 19:34:59,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-19 19:34:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-19 19:34:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-19 19:34:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-19 19:34:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-19 19:34:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-19 19:34:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-19 19:34:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-19 19:34:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-19 19:34:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-19 19:34:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-19 19:34:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2024-11-19 19:34:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2024-11-19 19:34:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2024-11-19 19:34:59,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2024-11-19 19:34:59,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2024-11-19 19:34:59,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 19:34:59,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 19:34:59,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-19 19:34:59,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-19 19:34:59,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-19 19:34:59,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-19 19:34:59,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-19 19:34:59,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-19 19:34:59,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-19 19:34:59,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-19 19:34:59,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-19 19:34:59,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-19 19:34:59,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-19 19:34:59,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-19 19:34:59,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2024-11-19 19:34:59,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#13 [2024-11-19 19:34:59,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#14 [2024-11-19 19:34:59,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#15 [2024-11-19 19:34:59,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#16 [2024-11-19 19:34:59,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-19 19:34:59,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-19 19:34:59,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-19 19:34:59,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-19 19:34:59,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-19 19:34:59,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-19 19:34:59,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-19 19:34:59,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-19 19:34:59,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-19 19:34:59,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-19 19:34:59,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-11-19 19:34:59,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2024-11-19 19:34:59,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2024-11-19 19:34:59,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2024-11-19 19:34:59,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2024-11-19 19:34:59,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#15 [2024-11-19 19:34:59,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#16 [2024-11-19 19:34:59,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 19:34:59,110 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-19 19:34:59,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-19 19:34:59,323 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 19:34:59,325 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 19:35:02,649 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-19 19:35:02,649 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 19:35:02,668 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 19:35:02,669 INFO L316 CfgBuilder]: Removed 34 assume(true) statements. [2024-11-19 19:35:02,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:02 BoogieIcfgContainer [2024-11-19 19:35:02,670 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 19:35:02,672 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 19:35:02,674 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 19:35:02,677 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 19:35:02,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:34:58" (1/3) ... [2024-11-19 19:35:02,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f56c9b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:02, skipping insertion in model container [2024-11-19 19:35:02,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (2/3) ... [2024-11-19 19:35:02,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f56c9b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:02, skipping insertion in model container [2024-11-19 19:35:02,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:02" (3/3) ... [2024-11-19 19:35:02,682 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270a.c [2024-11-19 19:35:02,699 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 19:35:02,699 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 19:35:02,771 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 19:35:02,778 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;@e8cebba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 19:35:02,779 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 19:35:02,783 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 84 states have (on average 1.6904761904761905) internal successors, (142), 85 states have internal predecessors, (142), 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) [2024-11-19 19:35:02,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-19 19:35:02,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:35:02,792 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:35:02,792 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:35:02,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:35:02,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1703390490, now seen corresponding path program 1 times [2024-11-19 19:35:02,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 19:35:02,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057669454] [2024-11-19 19:35:02,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:35:02,810 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 [2024-11-19 19:35:02,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 19:35:02,813 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) [2024-11-19 19:35:02,816 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 [2024-11-19 19:35:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:35:03,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 19:35:03,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 19:35:03,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 19:35:03,056 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 19:35:03,056 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-19 19:35:03,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057669454] [2024-11-19 19:35:03,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2057669454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:35:03,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:35:03,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 19:35:03,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348530085] [2024-11-19 19:35:03,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:35:03,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 19:35:03,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-19 19:35:03,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 19:35:03,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 19:35:03,095 INFO L87 Difference]: Start difference. First operand has 89 states, 84 states have (on average 1.6904761904761905) internal successors, (142), 85 states have internal predecessors, (142), 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) [2024-11-19 19:35:03,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 19:35:03,137 INFO L93 Difference]: Finished difference Result 176 states and 292 transitions. [2024-11-19 19:35:03,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 19:35:03,140 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 [2024-11-19 19:35:03,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 19:35:03,149 INFO L225 Difference]: With dead ends: 176 [2024-11-19 19:35:03,149 INFO L226 Difference]: Without dead ends: 86 [2024-11-19 19:35:03,154 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 [2024-11-19 19:35:03,160 INFO L432 NwaCegarLoop]: 111 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, 111 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 [2024-11-19 19:35:03,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 19:35:03,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-19 19:35:03,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-19 19:35:03,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.2682926829268293) internal successors, (104), 82 states have internal predecessors, (104), 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) [2024-11-19 19:35:03,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 108 transitions. [2024-11-19 19:35:03,214 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 108 transitions. Word has length 16 [2024-11-19 19:35:03,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 19:35:03,215 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 108 transitions. [2024-11-19 19:35:03,216 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) [2024-11-19 19:35:03,216 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 108 transitions. [2024-11-19 19:35:03,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-19 19:35:03,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:35:03,217 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] [2024-11-19 19:35:03,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-19 19:35:03,418 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 [2024-11-19 19:35:03,418 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:35:03,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:35:03,419 INFO L85 PathProgramCache]: Analyzing trace with hash -384015085, now seen corresponding path program 1 times [2024-11-19 19:35:03,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 19:35:03,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772355455] [2024-11-19 19:35:03,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:35:03,420 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 [2024-11-19 19:35:03,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 19:35:03,447 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) [2024-11-19 19:35:03,448 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 [2024-11-19 19:35:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:35:03,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 19:35:03,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 19:35:03,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 19:35:03,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-11-19 19:35:04,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 19:35:04,254 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 19:35:04,255 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-19 19:35:04,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772355455] [2024-11-19 19:35:04,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772355455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:35:04,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:35:04,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 19:35:04,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607881306] [2024-11-19 19:35:04,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:35:04,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 19:35:04,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-19 19:35:04,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 19:35:04,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 19:35:04,270 INFO L87 Difference]: Start difference. First operand 86 states and 108 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) [2024-11-19 19:35:09,862 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] [2024-11-19 19:35:13,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-19 19:35:18,057 WARN L539 Checker$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] [2024-11-19 19:35:22,062 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] [2024-11-19 19:35:22,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 19:35:22,064 INFO L93 Difference]: Finished difference Result 184 states and 232 transitions. [2024-11-19 19:35:22,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 19:35:22,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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 [2024-11-19 19:35:22,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 19:35:22,121 INFO L225 Difference]: With dead ends: 184 [2024-11-19 19:35:22,121 INFO L226 Difference]: Without dead ends: 115 [2024-11-19 19:35:22,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-19 19:35:22,123 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 38 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2024-11-19 19:35:22,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 410 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 136 Invalid, 4 Unknown, 0 Unchecked, 17.6s Time] [2024-11-19 19:35:22,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-19 19:35:22,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 95. [2024-11-19 19:35:22,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.2417582417582418) internal successors, (113), 91 states have internal predecessors, (113), 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) [2024-11-19 19:35:22,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 117 transitions. [2024-11-19 19:35:22,145 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 117 transitions. Word has length 21 [2024-11-19 19:35:22,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 19:35:22,148 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 117 transitions. [2024-11-19 19:35:22,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) [2024-11-19 19:35:22,148 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 117 transitions. [2024-11-19 19:35:22,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-19 19:35:22,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:35:22,149 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] [2024-11-19 19:35:22,161 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 [2024-11-19 19:35:22,349 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 [2024-11-19 19:35:22,350 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:35:22,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:35:22,351 INFO L85 PathProgramCache]: Analyzing trace with hash -970821099, now seen corresponding path program 1 times [2024-11-19 19:35:22,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 19:35:22,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415657143] [2024-11-19 19:35:22,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:35:22,352 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 [2024-11-19 19:35:22,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 19:35:22,353 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) [2024-11-19 19:35:22,354 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 [2024-11-19 19:35:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:35:22,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-19 19:35:22,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 19:35:26,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 19:35:26,003 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 19:35:26,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-19 19:35:26,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415657143] [2024-11-19 19:35:26,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415657143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:35:26,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:35:26,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 19:35:26,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205028264] [2024-11-19 19:35:26,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:35:26,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 19:35:26,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-19 19:35:26,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 19:35:26,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-19 19:35:26,005 INFO L87 Difference]: Start difference. First operand 95 states and 117 transitions. Second operand has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 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) [2024-11-19 19:35:36,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-19 19:35:40,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-19 19:35:44,909 WARN L539 Checker$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] [2024-11-19 19:35:48,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-19 19:35:52,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-19 19:35:56,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-19 19:36:00,932 WARN L539 Checker$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] [2024-11-19 19:36:04,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-19 19:36:08,945 WARN L539 Checker$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] [2024-11-19 19:36:12,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-19 19:36:17,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-19 19:36:21,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-19 19:36:25,444 WARN L539 Checker$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] [2024-11-19 19:36:29,449 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]