./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/sqrt_poly2.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 4f9af400
extending candidate: java
['java']
extending candidate: /usr/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/oracle-jdk-bin-*/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/openjdk-*/bin/java
['java', '/usr/bin/java']
extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java
['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java']
['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/float-benchs/sqrt_poly2.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '14164d07a16e34a605f7e42a9694dd7b1f0302594742e37b160cf821b53bc94e']
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/sqrt_poly2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 14164d07a16e34a605f7e42a9694dd7b1f0302594742e37b160cf821b53bc94e
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-06 20:47:03,904 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-06 20:47:03,973 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-06 20:47:03,978 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 20:47:03,978 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 20:47:03,997 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 20:47:03,999 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 20:47:03,999 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 20:47:03,999 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 20:47:04,000 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-06 20:47:04,001 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 20:47:04,001 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 20:47:04,001 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 20:47:04,001 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-06 20:47:04,001 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-06 20:47:04,001 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 20:47:04,001 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-06 20:47:04,001 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-06 20:47:04,002 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-06 20:47:04,002 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-06 20:47:04,002 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-06 20:47:04,002 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 20:47:04,002 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 20:47:04,002 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 20:47:04,002 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-06 20:47:04,002 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-06 20:47:04,002 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-06 20:47:04,002 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-06 20:47:04,003 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 20:47:04,003 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-06 20:47:04,003 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 20:47:04,003 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-06 20:47:04,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 20:47:04,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 20:47:04,004 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 20:47:04,004 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 20:47:04,004 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-06 20:47:04,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-06 20:47:04,004 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 20:47:04,004 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 20:47:04,004 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 20:47:04,004 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 20:47:04,005 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
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-jdk21/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 -> 14164d07a16e34a605f7e42a9694dd7b1f0302594742e37b160cf821b53bc94e
[2024-11-06 20:47:04,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 20:47:04,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 20:47:04,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 20:47:04,237 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-06 20:47:04,237 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-06 20:47:04,238 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/sqrt_poly2.c
[2024-11-06 20:47:05,328 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-06 20:47:05,477 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-06 20:47:05,477 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/sqrt_poly2.c
[2024-11-06 20:47:05,482 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2625d7f24/eb6f3d34460f4253bafd4bcf70d15337/FLAGc4c26f18d
[2024-11-06 20:47:05,491 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2625d7f24/eb6f3d34460f4253bafd4bcf70d15337
[2024-11-06 20:47:05,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 20:47:05,493 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-06 20:47:05,494 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 20:47:05,494 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 20:47:05,497 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 20:47:05,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:47:05" (1/1) ...
[2024-11-06 20:47:05,498 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@325f7a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:05, skipping insertion in model container
[2024-11-06 20:47:05,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:47:05" (1/1) ...
[2024-11-06 20:47:05,506 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-06 20:47:05,593 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/sqrt_poly2.c[587,600]
[2024-11-06 20:47:05,610 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 20:47:05,620 INFO L200 MainTranslator]: Completed pre-run
[2024-11-06 20:47:05,627 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/sqrt_poly2.c[587,600]
[2024-11-06 20:47:05,634 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 20:47:05,650 INFO L204 MainTranslator]: Completed translation
[2024-11-06 20:47:05,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:05 WrapperNode
[2024-11-06 20:47:05,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 20:47:05,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 20:47:05,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 20:47:05,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 20:47:05,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:05" (1/1) ...
[2024-11-06 20:47:05,660 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:05" (1/1) ...
[2024-11-06 20:47:05,677 INFO L138 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 90
[2024-11-06 20:47:05,679 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 20:47:05,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 20:47:05,679 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 20:47:05,680 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 20:47:05,686 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:05" (1/1) ...
[2024-11-06 20:47:05,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:05" (1/1) ...
[2024-11-06 20:47:05,691 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:05" (1/1) ...
[2024-11-06 20:47:05,698 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3].
[2024-11-06 20:47:05,699 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:05" (1/1) ...
[2024-11-06 20:47:05,699 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:05" (1/1) ...
[2024-11-06 20:47:05,705 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:05" (1/1) ...
[2024-11-06 20:47:05,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:05" (1/1) ...
[2024-11-06 20:47:05,709 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:05" (1/1) ...
[2024-11-06 20:47:05,712 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:05" (1/1) ...
[2024-11-06 20:47:05,714 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 20:47:05,714 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 20:47:05,714 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 20:47:05,714 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-06 20:47:05,715 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:05" (1/1) ...
[2024-11-06 20:47:05,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 20:47:05,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 20:47:05,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-06 20:47:05,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-06 20:47:05,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 20:47:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-06 20:47:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-06 20:47:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-06 20:47:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0
[2024-11-06 20:47:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1
[2024-11-06 20:47:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-06 20:47:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-06 20:47:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0
[2024-11-06 20:47:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1
[2024-11-06 20:47:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 20:47:05,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 20:47:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-06 20:47:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-06 20:47:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-06 20:47:05,840 INFO L238 CfgBuilder]: Building ICFG
[2024-11-06 20:47:05,841 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 20:47:05,988 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live.
[2024-11-06 20:47:05,988 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-06 20:47:05,996 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 20:47:05,997 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-06 20:47:05,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:47:05 BoogieIcfgContainer
[2024-11-06 20:47:05,998 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 20:47:05,999 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 20:47:05,999 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 20:47:06,003 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-06 20:47:06,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:47:05" (1/3) ...
[2024-11-06 20:47:06,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661e46a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:47:06, skipping insertion in model container
[2024-11-06 20:47:06,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:05" (2/3) ...
[2024-11-06 20:47:06,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661e46a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:47:06, skipping insertion in model container
[2024-11-06 20:47:06,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:47:05" (3/3) ...
[2024-11-06 20:47:06,006 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2.c
[2024-11-06 20:47:06,016 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 20:47:06,017 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 20:47:06,058 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 20:47:06,067 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;@5f9ccb98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 20:47:06,069 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 20:47:06,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.434782608695652) internal successors, (33), 24 states have internal predecessors, (33), 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)
[2024-11-06 20:47:06,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-06 20:47:06,077 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 20:47:06,077 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 20:47:06,077 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 20:47:06,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 20:47:06,081 INFO L85 PathProgramCache]: Analyzing trace with hash -402094428, now seen corresponding path program 1 times
[2024-11-06 20:47:06,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 20:47:06,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582364023]
[2024-11-06 20:47:06,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 20:47:06,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 20:47:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 20:47:06,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 20:47:06,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-06 20:47:06,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582364023]
[2024-11-06 20:47:06,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582364023] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 20:47:06,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 20:47:06,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 20:47:06,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492266867]
[2024-11-06 20:47:06,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 20:47:06,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 20:47:06,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-06 20:47:06,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 20:47:06,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 20:47:06,237 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.434782608695652) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-06 20:47:06,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 20:47:06,246 INFO L93 Difference]: Finished difference Result 47 states and 62 transitions.
[2024-11-06 20:47:06,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-06 20:47:06,247 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14
[2024-11-06 20:47:06,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 20:47:06,252 INFO L225 Difference]: With dead ends: 47
[2024-11-06 20:47:06,252 INFO L226 Difference]: Without dead ends: 21
[2024-11-06 20:47:06,254 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
[2024-11-06 20:47:06,255 INFO L432 NwaCegarLoop]: 30 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, 30 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
[2024-11-06 20:47:06,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 20:47:06,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2024-11-06 20:47:06,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2024-11-06 20:47:06,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 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)
[2024-11-06 20:47:06,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions.
[2024-11-06 20:47:06,278 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 14
[2024-11-06 20:47:06,278 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 20:47:06,278 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions.
[2024-11-06 20:47:06,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-06 20:47:06,279 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions.
[2024-11-06 20:47:06,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-06 20:47:06,279 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 20:47:06,279 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 20:47:06,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-06 20:47:06,280 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 20:47:06,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 20:47:06,281 INFO L85 PathProgramCache]: Analyzing trace with hash -143928990, now seen corresponding path program 1 times
[2024-11-06 20:47:06,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 20:47:06,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074562224]
[2024-11-06 20:47:06,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 20:47:06,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 20:47:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-06 20:47:06,356 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-06 20:47:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-06 20:47:06,419 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-06 20:47:06,420 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-06 20:47:06,421 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-06 20:47:06,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-06 20:47:06,424 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-11-06 20:47:06,436 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-06 20:47:06,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 08:47:06 BoogieIcfgContainer
[2024-11-06 20:47:06,438 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-06 20:47:06,439 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-06 20:47:06,439 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-06 20:47:06,439 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-06 20:47:06,440 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:47:05" (3/4) ...
[2024-11-06 20:47:06,441 INFO L145 WitnessPrinter]: No result that supports witness generation found
[2024-11-06 20:47:06,441 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-06 20:47:06,442 INFO L158 Benchmark]: Toolchain (without parser) took 948.74ms. Allocated memory is still 109.1MB. Free memory was 85.2MB in the beginning and 76.1MB in the end (delta: 9.1MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB.
[2024-11-06 20:47:06,442 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 20:47:06,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 156.91ms. Allocated memory is still 109.1MB. Free memory was 85.1MB in the beginning and 73.6MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 20:47:06,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.50ms. Allocated memory is still 109.1MB. Free memory was 73.5MB in the beginning and 72.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 20:47:06,443 INFO L158 Benchmark]: Boogie Preprocessor took 34.27ms. Allocated memory is still 109.1MB. Free memory was 72.1MB in the beginning and 70.5MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 20:47:06,443 INFO L158 Benchmark]: RCFGBuilder took 283.60ms. Allocated memory is still 109.1MB. Free memory was 70.5MB in the beginning and 58.1MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 20:47:06,443 INFO L158 Benchmark]: TraceAbstraction took 439.36ms. Allocated memory is still 109.1MB. Free memory was 57.4MB in the beginning and 76.1MB in the end (delta: -18.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 20:47:06,443 INFO L158 Benchmark]: Witness Printer took 2.64ms. Allocated memory is still 109.1MB. Free memory was 76.1MB in the beginning and 76.1MB in the end (delta: 34.6kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 20:47:06,444 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.63ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 156.91ms. Allocated memory is still 109.1MB. Free memory was 85.1MB in the beginning and 73.6MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 27.50ms. Allocated memory is still 109.1MB. Free memory was 73.5MB in the beginning and 72.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 34.27ms. Allocated memory is still 109.1MB. Free memory was 72.1MB in the beginning and 70.5MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 283.60ms. Allocated memory is still 109.1MB. Free memory was 70.5MB in the beginning and 58.1MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 439.36ms. Allocated memory is still 109.1MB. Free memory was 57.4MB in the beginning and 76.1MB in the end (delta: -18.7MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 2.64ms. Allocated memory is still 109.1MB. Free memory was 76.1MB in the beginning and 76.1MB in the end (delta: 34.6kB). 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: 14]: Unable to prove that a call to reach_error is unreachable
Unable to prove that a call to reach_error is unreachable
Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 65, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51.
Possible FailurePath:
[L17] double C0 = 1.414213538;
[L18] double C1 = 0.229761391;
[L19] double C2 = 1.296735525;
[L20] double C3 = -0.901098370;
[L21] double C4 = 0.493553400;
[L22] double C5 = -0.118958666;
VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000]
[L58] double x,y;
[L60] x = __VERIFIER_nondet_double()
[L61] CALL assume_abort_if_not(x >= 1. && x <= 1e10)
[L12] COND FALSE !(!cond)
VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000]
[L61] RET assume_abort_if_not(x >= 1. && x <= 1e10)
[L63] CALL, EXPR sqrt_custom(x)
[L31] union u x;
[L32] double r;
[L33] int exp;
[L35] x.d = a
[L37] EXPR x.i[0]
VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000]
[L37] EXPR x.i[0] & 0x7FF00000
VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, x={4:0}]
[L37] exp = (x.i[0] & 0x7FF00000) >> 20
[L38] EXPR x.i[0]
VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000]
[L38] EXPR x.i[0] & 0x800FFFFF
VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=0, x={4:0}]
[L38] EXPR (x.i[0] & 0x800FFFFF) | 0x3FF00000
VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=0, x={4:0}]
[L38] x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000
[L39] EXPR x.d
[L39] r = x.d * 0.5
[L41] r = C1+C2+(C3+(C4+C5*r)*r)*r
VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=0, x={4:0}]
[L43] COND TRUE exp % 2 == 0
[L44] exp++
VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=1, x={4:0}]
[L50] x.i[0] = (exp/2 + 511) << 20
[L51] EXPR x.d
[L51] r = r * x.d
[L53] return r;
[L53] return r;
VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, \result=1072693259]
[L63] RET, EXPR sqrt_custom(x)
[L63] y = sqrt_custom(x)
[L65] CALL __VERIFIER_assert(y >= 0. && y <= 1e6)
[L14] COND TRUE !(cond)
VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000]
[L14] reach_error()
VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 30 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, 30 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=25occurred 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, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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
[2024-11-06 20:47:06,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/sqrt_poly2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 14164d07a16e34a605f7e42a9694dd7b1f0302594742e37b160cf821b53bc94e
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-06 20:47:08,117 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-06 20:47:08,198 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-06 20:47:08,204 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 20:47:08,206 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 20:47:08,223 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 20:47:08,223 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 20:47:08,224 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 20:47:08,224 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 20:47:08,224 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-06 20:47:08,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 20:47:08,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 20:47:08,224 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 20:47:08,224 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-06 20:47:08,225 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-06 20:47:08,225 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 20:47:08,225 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-06 20:47:08,225 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-06 20:47:08,225 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-06 20:47:08,225 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-06 20:47:08,225 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 20:47:08,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 20:47:08,225 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 20:47:08,225 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-06 20:47:08,225 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-06 20:47:08,226 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-06 20:47:08,226 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 20:47:08,226 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-06 20:47:08,226 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-06 20:47:08,226 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-06 20:47:08,226 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 20:47:08,226 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-06 20:47:08,226 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 20:47:08,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-06 20:47:08,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 20:47:08,226 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 20:47:08,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 20:47:08,227 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 20:47:08,227 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2024-11-06 20:47:08,227 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 20:47:08,227 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 20:47:08,227 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 20:47:08,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 20:47:08,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 20:47:08,227 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
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-jdk21/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 -> 14164d07a16e34a605f7e42a9694dd7b1f0302594742e37b160cf821b53bc94e
[2024-11-06 20:47:08,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 20:47:08,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 20:47:08,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 20:47:08,452 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-06 20:47:08,452 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-06 20:47:08,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/sqrt_poly2.c
[2024-11-06 20:47:09,573 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-06 20:47:09,748 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-06 20:47:09,748 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/sqrt_poly2.c
[2024-11-06 20:47:09,755 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0f1f0cc58/c288d46dca8d41a5a5b6b4dba5d77fe8/FLAG95cf030ab
[2024-11-06 20:47:10,124 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0f1f0cc58/c288d46dca8d41a5a5b6b4dba5d77fe8
[2024-11-06 20:47:10,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 20:47:10,127 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-06 20:47:10,129 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 20:47:10,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 20:47:10,132 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 20:47:10,132 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:47:10" (1/1) ...
[2024-11-06 20:47:10,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c40c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:10, skipping insertion in model container
[2024-11-06 20:47:10,133 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:47:10" (1/1) ...
[2024-11-06 20:47:10,144 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-06 20:47:10,248 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/sqrt_poly2.c[587,600]
[2024-11-06 20:47:10,273 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 20:47:10,286 INFO L200 MainTranslator]: Completed pre-run
[2024-11-06 20:47:10,295 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/sqrt_poly2.c[587,600]
[2024-11-06 20:47:10,308 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 20:47:10,327 INFO L204 MainTranslator]: Completed translation
[2024-11-06 20:47:10,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:10 WrapperNode
[2024-11-06 20:47:10,328 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 20:47:10,329 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 20:47:10,329 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 20:47:10,329 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 20:47:10,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:10" (1/1) ...
[2024-11-06 20:47:10,339 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:10" (1/1) ...
[2024-11-06 20:47:10,352 INFO L138 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67
[2024-11-06 20:47:10,352 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 20:47:10,353 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 20:47:10,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 20:47:10,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 20:47:10,359 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:10" (1/1) ...
[2024-11-06 20:47:10,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:10" (1/1) ...
[2024-11-06 20:47:10,362 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:10" (1/1) ...
[2024-11-06 20:47:10,370 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3].
[2024-11-06 20:47:10,373 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:10" (1/1) ...
[2024-11-06 20:47:10,373 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:10" (1/1) ...
[2024-11-06 20:47:10,381 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:10" (1/1) ...
[2024-11-06 20:47:10,385 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:10" (1/1) ...
[2024-11-06 20:47:10,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:10" (1/1) ...
[2024-11-06 20:47:10,387 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:10" (1/1) ...
[2024-11-06 20:47:10,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 20:47:10,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 20:47:10,389 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 20:47:10,389 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-06 20:47:10,393 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:10" (1/1) ...
[2024-11-06 20:47:10,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 20:47:10,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 20:47:10,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-06 20:47:10,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-06 20:47:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 20:47:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0
[2024-11-06 20:47:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1
[2024-11-06 20:47:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0
[2024-11-06 20:47:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1
[2024-11-06 20:47:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 20:47:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-06 20:47:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-06 20:47:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-11-06 20:47:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-11-06 20:47:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 20:47:10,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 20:47:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-06 20:47:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-11-06 20:47:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2024-11-06 20:47:10,489 INFO L238 CfgBuilder]: Building ICFG
[2024-11-06 20:47:10,490 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 20:47:15,501 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live.
[2024-11-06 20:47:15,501 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-06 20:47:15,506 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 20:47:15,507 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-06 20:47:15,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:47:15 BoogieIcfgContainer
[2024-11-06 20:47:15,507 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 20:47:15,509 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 20:47:15,509 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 20:47:15,512 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-06 20:47:15,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:47:10" (1/3) ...
[2024-11-06 20:47:15,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e28fdf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:47:15, skipping insertion in model container
[2024-11-06 20:47:15,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:47:10" (2/3) ...
[2024-11-06 20:47:15,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e28fdf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:47:15, skipping insertion in model container
[2024-11-06 20:47:15,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:47:15" (3/3) ...
[2024-11-06 20:47:15,514 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2.c
[2024-11-06 20:47:15,523 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 20:47:15,523 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 20:47:15,550 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 20:47:15,558 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;@3e1c342f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 20:47:15,558 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 20:47:15,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 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)
[2024-11-06 20:47:15,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-06 20:47:15,565 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 20:47:15,565 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 20:47:15,565 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 20:47:15,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 20:47:15,568 INFO L85 PathProgramCache]: Analyzing trace with hash -594069783, now seen corresponding path program 1 times
[2024-11-06 20:47:15,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-06 20:47:15,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69249544]
[2024-11-06 20:47:15,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 20:47:15,578 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
[2024-11-06 20:47:15,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 20:47:15,581 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/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)
[2024-11-06 20:47:15,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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
[2024-11-06 20:47:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 20:47:16,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 20:47:16,502 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 20:47:16,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 20:47:16,512 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 20:47:16,513 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-06 20:47:16,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69249544]
[2024-11-06 20:47:16,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69249544] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 20:47:16,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 20:47:16,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 20:47:16,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678316641]
[2024-11-06 20:47:16,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 20:47:16,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 20:47:16,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-06 20:47:16,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 20:47:16,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 20:47:16,528 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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)
[2024-11-06 20:47:16,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 20:47:16,534 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions.
[2024-11-06 20:47:16,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-06 20:47:16,535 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9
[2024-11-06 20:47:16,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 20:47:16,539 INFO L225 Difference]: With dead ends: 25
[2024-11-06 20:47:16,539 INFO L226 Difference]: Without dead ends: 10
[2024-11-06 20:47:16,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 20:47:16,542 INFO L432 NwaCegarLoop]: 14 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, 14 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
[2024-11-06 20:47:16,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 20:47:16,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states.
[2024-11-06 20:47:16,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10.
[2024-11-06 20:47:16,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-06 20:47:16,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions.
[2024-11-06 20:47:16,560 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 9
[2024-11-06 20:47:16,560 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 20:47:16,560 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions.
[2024-11-06 20:47:16,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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)
[2024-11-06 20:47:16,560 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions.
[2024-11-06 20:47:16,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-06 20:47:16,561 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 20:47:16,561 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 20:47:16,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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
[2024-11-06 20:47:16,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/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
[2024-11-06 20:47:16,762 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 20:47:16,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 20:47:16,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1180937579, now seen corresponding path program 1 times
[2024-11-06 20:47:16,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-06 20:47:16,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131514529]
[2024-11-06 20:47:16,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 20:47:16,763 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
[2024-11-06 20:47:16,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 20:47:16,765 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/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)
[2024-11-06 20:47:16,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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
[2024-11-06 20:47:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-06 20:47:22,044 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-06 20:47:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-06 20:47:29,170 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2024-11-06 20:47:29,171 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-06 20:47:29,171 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-06 20:47:29,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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
[2024-11-06 20:47:29,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/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
[2024-11-06 20:47:29,379 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-11-06 20:47:29,396 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-06 20:47:29,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 08:47:29 BoogieIcfgContainer
[2024-11-06 20:47:29,399 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-06 20:47:29,400 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-06 20:47:29,400 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-06 20:47:29,400 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-06 20:47:29,401 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:47:15" (3/4) ...
[2024-11-06 20:47:29,401 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample
[2024-11-06 20:47:29,425 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-06 20:47:29,425 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-06 20:47:29,426 INFO L158 Benchmark]: Toolchain (without parser) took 19298.64ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 42.9MB in the end (delta: 17.7MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB.
[2024-11-06 20:47:29,426 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 20:47:29,426 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.96ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 48.2MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 20:47:29,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.60ms. Allocated memory is still 83.9MB. Free memory was 48.2MB in the beginning and 47.0MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 20:47:29,429 INFO L158 Benchmark]: Boogie Preprocessor took 35.52ms. Allocated memory is still 83.9MB. Free memory was 47.0MB in the beginning and 44.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 20:47:29,430 INFO L158 Benchmark]: RCFGBuilder took 5118.04ms. Allocated memory is still 83.9MB. Free memory was 44.9MB in the beginning and 33.1MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 20:47:29,430 INFO L158 Benchmark]: TraceAbstraction took 13890.55ms. Allocated memory is still 83.9MB. Free memory was 32.7MB in the beginning and 45.4MB in the end (delta: -12.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 20:47:29,430 INFO L158 Benchmark]: Witness Printer took 25.50ms. Allocated memory is still 83.9MB. Free memory was 45.4MB in the beginning and 42.9MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 20:47:29,431 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 199.96ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 48.2MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 23.60ms. Allocated memory is still 83.9MB. Free memory was 48.2MB in the beginning and 47.0MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 35.52ms. Allocated memory is still 83.9MB. Free memory was 47.0MB in the beginning and 44.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 5118.04ms. Allocated memory is still 83.9MB. Free memory was 44.9MB in the beginning and 33.1MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 13890.55ms. Allocated memory is still 83.9MB. Free memory was 32.7MB in the beginning and 45.4MB in the end (delta: -12.7MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 25.50ms. Allocated memory is still 83.9MB. Free memory was 45.4MB in the beginning and 42.9MB in the end (delta: 2.5MB). 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
- CounterExampleResult [Line: 14]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L17] double C0 = 1.414213538;
[L18] double C1 = 0.229761391;
[L19] double C2 = 1.296735525;
[L20] double C3 = -0.901098370;
[L21] double C4 = 0.493553400;
[L22] double C5 = -0.118958666;
VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666]
[L58] double x,y;
[L60] x = __VERIFIER_nondet_double()
[L61] CALL assume_abort_if_not(x >= 1. && x <= 1e10)
[L12] COND FALSE !(!cond)
VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666]
[L61] RET assume_abort_if_not(x >= 1. && x <= 1e10)
[L63] CALL, EXPR sqrt_custom(x)
[L31] union u x;
[L32] double r;
[L33] int exp;
[L35] x.d = a
[L37] EXPR x.i[0]
[L37] exp = (x.i[0] & 0x7FF00000) >> 20
[L38] EXPR x.i[0]
[L38] x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000
[L39] EXPR x.d
[L39] r = x.d * 0.5
[L41] r = C1+C2+(C3+(C4+C5*r)*r)*r
VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=390, r=-50494938.75361517, x={6:0}]
[L43] COND TRUE exp % 2 == 0
[L44] exp++
VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=391, r=-50494938.75361517, x={6:0}]
[L50] x.i[0] = (exp/2 + 511) << 20
[L51] EXPR x.d
[L51] r = r * x.d
[L53] return r;
[L53] return r;
VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, \result=-76037249870.93173]
[L63] RET, EXPR sqrt_custom(x)
[L63] y = sqrt_custom(x)
[L65] CALL __VERIFIER_assert(y >= 0. && y <= 1e6)
[L14] COND TRUE !(cond)
VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666]
[L14] reach_error()
VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 14 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, 14 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 6.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 56 ConjunctsInSsa, 1 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 proved your program to be incorrect!
[2024-11-06 20:47:29,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE