/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0460.c


--------------------------------------------------------------------------------


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 02:27:19,758 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 02:27:19,801 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 02:27:19,804 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 02:27:19,805 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 02:27:19,819 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 02:27:19,819 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 02:27:19,820 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 02:27:19,820 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 02:27:19,820 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 02:27:19,821 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 02:27:19,821 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 02:27:19,821 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 02:27:19,821 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 02:27:19,822 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 02:27:19,822 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 02:27:19,822 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 02:27:19,822 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 02:27:19,823 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 02:27:19,823 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 02:27:19,823 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 02:27:19,823 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 02:27:19,824 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 02:27:19,824 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 02:27:19,824 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 02:27:19,824 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 02:27:19,825 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 02:27:19,825 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 02:27:19,825 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 02:27:19,825 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 02:27:19,825 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 02:27:19,826 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 02:27:19,826 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 02:27:19,826 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 02:27:19,826 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 02:27:19,827 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 02:27:19,827 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 02:27:19,827 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 02:27:19,827 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 02:27:19,827 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 02:27:19,827 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 02:27:19,831 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 02:27:19,831 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 02:27:19,832 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 02:27:19,832 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 02:27:20,044 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 02:27:20,076 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 02:27:20,079 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 02:27:20,080 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 02:27:20,080 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 02:27:20,082 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0460.c
[2024-11-03 02:27:21,426 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 02:27:21,608 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 02:27:21,612 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0460.c
[2024-11-03 02:27:21,623 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3f312d29/48abcbd2cd3d4fcf98a68dcba8587428/FLAGb1c0cadba
[2024-11-03 02:27:21,639 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3f312d29/48abcbd2cd3d4fcf98a68dcba8587428
[2024-11-03 02:27:21,641 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 02:27:21,643 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 02:27:21,646 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 02:27:21,646 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 02:27:21,650 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 02:27:21,650 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:27:21" (1/1) ...
[2024-11-03 02:27:21,651 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e132165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:21, skipping insertion in model container
[2024-11-03 02:27:21,651 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:27:21" (1/1) ...
[2024-11-03 02:27:21,678 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 02:27:21,877 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0460.c[5763,5776]
[2024-11-03 02:27:21,881 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 02:27:21,892 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 02:27:21,938 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0460.c[5763,5776]
[2024-11-03 02:27:21,939 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 02:27:21,963 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 02:27:21,963 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:21 WrapperNode
[2024-11-03 02:27:21,963 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 02:27:21,964 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 02:27:21,964 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 02:27:21,965 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 02:27:21,970 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:21" (1/1) ...
[2024-11-03 02:27:21,980 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:21" (1/1) ...
[2024-11-03 02:27:22,016 INFO  L138                Inliner]: procedures = 21, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 139
[2024-11-03 02:27:22,017 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 02:27:22,018 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 02:27:22,018 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 02:27:22,018 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 02:27:22,033 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:21" (1/1) ...
[2024-11-03 02:27:22,033 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:21" (1/1) ...
[2024-11-03 02:27:22,046 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:21" (1/1) ...
[2024-11-03 02:27:22,067 INFO  L175           MemorySlicer]: Split 15 memory accesses to 6 slices as follows [2, 3, 3, 3, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 7 writes are split as follows [0, 1, 2, 2, 1, 1].
[2024-11-03 02:27:22,067 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:21" (1/1) ...
[2024-11-03 02:27:22,067 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:21" (1/1) ...
[2024-11-03 02:27:22,082 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:21" (1/1) ...
[2024-11-03 02:27:22,088 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:21" (1/1) ...
[2024-11-03 02:27:22,093 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:21" (1/1) ...
[2024-11-03 02:27:22,095 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:21" (1/1) ...
[2024-11-03 02:27:22,132 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 02:27:22,133 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 02:27:22,133 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 02:27:22,134 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 02:27:22,134 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:21" (1/1) ...
[2024-11-03 02:27:22,143 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 02:27:22,153 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 02:27:22,168 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)
[2024-11-03 02:27:22,172 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
[2024-11-03 02:27:22,195 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 02:27:22,196 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0
[2024-11-03 02:27:22,196 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1
[2024-11-03 02:27:22,196 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2
[2024-11-03 02:27:22,196 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3
[2024-11-03 02:27:22,196 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4
[2024-11-03 02:27:22,196 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5
[2024-11-03 02:27:22,196 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0
[2024-11-03 02:27:22,196 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1
[2024-11-03 02:27:22,197 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2
[2024-11-03 02:27:22,197 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3
[2024-11-03 02:27:22,197 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4
[2024-11-03 02:27:22,197 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5
[2024-11-03 02:27:22,197 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 02:27:22,197 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-03 02:27:22,197 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-11-03 02:27:22,197 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3
[2024-11-03 02:27:22,197 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4
[2024-11-03 02:27:22,197 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5
[2024-11-03 02:27:22,197 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-03 02:27:22,198 INFO  L130     BoogieDeclarations]: Found specification of procedure __ieee754_sqrt
[2024-11-03 02:27:22,198 INFO  L138     BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt
[2024-11-03 02:27:22,198 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-11-03 02:27:22,198 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-11-03 02:27:22,198 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2
[2024-11-03 02:27:22,198 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3
[2024-11-03 02:27:22,198 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4
[2024-11-03 02:27:22,198 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5
[2024-11-03 02:27:22,198 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 02:27:22,198 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 02:27:22,199 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-11-03 02:27:22,199 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2024-11-03 02:27:22,199 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2
[2024-11-03 02:27:22,199 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3
[2024-11-03 02:27:22,199 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4
[2024-11-03 02:27:22,199 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5
[2024-11-03 02:27:22,199 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-03 02:27:22,306 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 02:27:22,307 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 02:27:51,865 INFO  L?                        ?]: Removed 69 outVars from TransFormulas that were not future-live.
[2024-11-03 02:27:51,866 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 02:27:51,878 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 02:27:51,878 INFO  L316             CfgBuilder]: Removed 14 assume(true) statements.
[2024-11-03 02:27:51,878 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:27:51 BoogieIcfgContainer
[2024-11-03 02:27:51,879 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 02:27:51,880 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 02:27:51,880 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 02:27:51,883 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 02:27:51,884 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:27:21" (1/3) ...
[2024-11-03 02:27:51,884 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485afca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:27:51, skipping insertion in model container
[2024-11-03 02:27:51,885 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:21" (2/3) ...
[2024-11-03 02:27:51,885 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485afca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:27:51, skipping insertion in model container
[2024-11-03 02:27:51,885 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:27:51" (3/3) ...
[2024-11-03 02:27:51,886 INFO  L112   eAbstractionObserver]: Analyzing ICFG double_req_bl_0460.c
[2024-11-03 02:27:51,899 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 02:27:51,900 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 02:27:51,952 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 02:27:51,957 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;@20d61c57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 02:27:51,957 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 02:27:51,961 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 72 states, 67 states have (on average 1.6417910447761195) internal successors, (110), 68 states have internal predecessors, (110), 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)
[2024-11-03 02:27:51,966 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-03 02:27:51,966 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:27:51,967 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 02:27:51,967 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:27:51,971 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:27:51,971 INFO  L85        PathProgramCache]: Analyzing trace with hash 260887967, now seen corresponding path program 1 times
[2024-11-03 02:27:51,979 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:27:51,979 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616406126]
[2024-11-03 02:27:51,980 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:27:51,981 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:27:51,981 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:27:51,984 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 02:27:51,985 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process
[2024-11-03 02:27:52,487 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:27:52,512 INFO  L255         TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 02:27:52,515 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 02:27:52,528 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 02:27:52,528 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 02:27:52,534 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 02:27:52,534 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 02:27:52,535 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616406126]
[2024-11-03 02:27:52,535 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [616406126] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 02:27:52,535 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 02:27:52,535 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 02:27:52,538 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604990731]
[2024-11-03 02:27:52,539 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 02:27:52,542 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 02:27:52,543 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 02:27:52,561 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 02:27:52,562 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 02:27:52,563 INFO  L87              Difference]: Start difference. First operand  has 72 states, 67 states have (on average 1.6417910447761195) internal successors, (110), 68 states have internal predecessors, (110), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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)
[2024-11-03 02:27:52,588 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 02:27:52,589 INFO  L93              Difference]: Finished difference Result 141 states and 226 transitions.
[2024-11-03 02:27:52,590 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 02:27:52,591 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12
[2024-11-03 02:27:52,591 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 02:27:52,597 INFO  L225             Difference]: With dead ends: 141
[2024-11-03 02:27:52,598 INFO  L226             Difference]: Without dead ends: 68
[2024-11-03 02:27:52,600 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 02:27:52,603 INFO  L432           NwaCegarLoop]: 99 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, 99 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
[2024-11-03 02:27:52,604 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 02:27:52,618 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2024-11-03 02:27:52,632 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68.
[2024-11-03 02:27:52,634 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 68 states, 64 states have (on average 1.40625) internal successors, (90), 64 states have internal predecessors, (90), 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)
[2024-11-03 02:27:52,635 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions.
[2024-11-03 02:27:52,636 INFO  L78                 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 12
[2024-11-03 02:27:52,636 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 02:27:52,637 INFO  L471      AbstractCegarLoop]: Abstraction has 68 states and 94 transitions.
[2024-11-03 02:27:52,637 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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)
[2024-11-03 02:27:52,637 INFO  L276                IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions.
[2024-11-03 02:27:52,637 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-03 02:27:52,638 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:27:52,638 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 02:27:52,648 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0
[2024-11-03 02:27:52,841 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 02:27:52,842 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:27:52,843 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:27:52,843 INFO  L85        PathProgramCache]: Analyzing trace with hash -843068167, now seen corresponding path program 1 times
[2024-11-03 02:27:52,843 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:27:52,843 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031587846]
[2024-11-03 02:27:52,843 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:27:52,843 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:27:52,844 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:27:52,848 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 02:27:52,850 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process
[2024-11-03 02:27:54,615 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:27:54,643 INFO  L255         TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-03 02:27:54,647 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 02:28:00,077 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 02:28:00,077 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 02:28:04,621 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 02:28:04,622 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 02:28:04,622 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1031587846]
[2024-11-03 02:28:04,622 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1031587846] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 02:28:04,622 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 02:28:04,622 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8
[2024-11-03 02:28:04,622 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503507766]
[2024-11-03 02:28:04,623 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 02:28:04,624 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 02:28:04,624 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 02:28:04,624 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 02:28:04,624 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-11-03 02:28:04,625 INFO  L87              Difference]: Start difference. First operand 68 states and 94 transitions. Second operand  has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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)
[2024-11-03 02:28:11,894 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-03 02:28:12,945 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 02:28:12,946 INFO  L93              Difference]: Finished difference Result 74 states and 99 transitions.
[2024-11-03 02:28:12,952 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-03 02:28:12,952 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13
[2024-11-03 02:28:12,953 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 02:28:12,953 INFO  L225             Difference]: With dead ends: 74
[2024-11-03 02:28:12,953 INFO  L226             Difference]: Without dead ends: 17
[2024-11-03 02:28:12,954 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90
[2024-11-03 02:28:12,954 INFO  L432           NwaCegarLoop]: 10 mSDtfsCounter, 30 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time
[2024-11-03 02:28:12,955 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 31 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time]
[2024-11-03 02:28:12,958 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2024-11-03 02:28:12,961 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16.
[2024-11-03 02:28:12,962 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 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)
[2024-11-03 02:28:12,962 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions.
[2024-11-03 02:28:12,962 INFO  L78                 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 13
[2024-11-03 02:28:12,962 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 02:28:12,963 INFO  L471      AbstractCegarLoop]: Abstraction has 16 states and 17 transitions.
[2024-11-03 02:28:12,963 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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)
[2024-11-03 02:28:12,963 INFO  L276                IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions.
[2024-11-03 02:28:12,963 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-03 02:28:12,963 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:28:12,963 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 02:28:12,977 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0
[2024-11-03 02:28:13,164 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 02:28:13,164 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:28:13,165 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:28:13,165 INFO  L85        PathProgramCache]: Analyzing trace with hash 1156017025, now seen corresponding path program 1 times
[2024-11-03 02:28:13,165 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:28:13,165 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [814346613]
[2024-11-03 02:28:13,165 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:28:13,165 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:28:13,166 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:28:13,171 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 02:28:13,172 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-03 02:28:15,448 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:28:15,479 INFO  L255         TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-03 02:28:15,481 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 02:28:29,505 WARN  L286               SmtUtils]: Spent 5.00s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-03 02:28:36,635 WARN  L851   $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start___ieee754_acos_~x#1_13| (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (and (fp.gt |v_ULTIMATE.start___ieee754_acos_~x#1_13| ((_ to_fp 11 53) currentRoundingMode 1.0)) (= (let ((.cse0 (fp.sub currentRoundingMode |v_ULTIMATE.start___ieee754_acos_~x#1_13| |v_ULTIMATE.start___ieee754_acos_~x#1_13|))) (fp.div currentRoundingMode .cse0 .cse0)) |c_ULTIMATE.start___ieee754_acos_#res#1|))) (exists ((|v_ULTIMATE.start___ieee754_acos_~x#1_13| (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (and (fp.lt |v_ULTIMATE.start___ieee754_acos_~x#1_13| (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0))) (= (let ((.cse1 (fp.sub currentRoundingMode |v_ULTIMATE.start___ieee754_acos_~x#1_13| |v_ULTIMATE.start___ieee754_acos_~x#1_13|))) (fp.div currentRoundingMode .cse1 .cse1)) |c_ULTIMATE.start___ieee754_acos_#res#1|)))) is different from false
[2024-11-03 02:28:40,329 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 02:28:40,330 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 02:28:45,710 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 02:28:45,711 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 02:28:45,711 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [814346613]
[2024-11-03 02:28:45,711 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [814346613] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 02:28:45,711 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 02:28:45,711 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9
[2024-11-03 02:28:45,711 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074697131]
[2024-11-03 02:28:45,711 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 02:28:45,712 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-03 02:28:45,712 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 02:28:45,712 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-03 02:28:45,712 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=42, Unknown=1, NotChecked=12, Total=72
[2024-11-03 02:28:45,713 INFO  L87              Difference]: Start difference. First operand 16 states and 17 transitions. Second operand  has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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)
[2024-11-03 02:28:48,085 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 02:28:53,198 WARN  L851   $PredicateComparison]: unable to prove that (and (or (exists ((|v_ULTIMATE.start___ieee754_acos_~x#1_13| (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (and (fp.gt |v_ULTIMATE.start___ieee754_acos_~x#1_13| ((_ to_fp 11 53) currentRoundingMode 1.0)) (= (let ((.cse0 (fp.sub currentRoundingMode |v_ULTIMATE.start___ieee754_acos_~x#1_13| |v_ULTIMATE.start___ieee754_acos_~x#1_13|))) (fp.div currentRoundingMode .cse0 .cse0)) |c_ULTIMATE.start___ieee754_acos_#res#1|))) (exists ((|v_ULTIMATE.start___ieee754_acos_~x#1_13| (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (and (fp.lt |v_ULTIMATE.start___ieee754_acos_~x#1_13| (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0))) (= (let ((.cse1 (fp.sub currentRoundingMode |v_ULTIMATE.start___ieee754_acos_~x#1_13| |v_ULTIMATE.start___ieee754_acos_~x#1_13|))) (fp.div currentRoundingMode .cse1 .cse1)) |c_ULTIMATE.start___ieee754_acos_#res#1|)))) (not (fp.eq |c_ULTIMATE.start___ieee754_acos_#res#1| |c_ULTIMATE.start___ieee754_acos_#res#1|))) is different from false
[2024-11-03 02:28:56,475 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 02:28:57,812 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 02:28:57,812 INFO  L93              Difference]: Finished difference Result 21 states and 21 transitions.
[2024-11-03 02:28:57,813 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-03 02:28:57,813 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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
[2024-11-03 02:28:57,813 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 02:28:57,814 INFO  L225             Difference]: With dead ends: 21
[2024-11-03 02:28:57,814 INFO  L226             Difference]: Without dead ends: 16
[2024-11-03 02:28:57,814 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=19, Invalid=43, Unknown=2, NotChecked=26, Total=90
[2024-11-03 02:28:57,815 INFO  L432           NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time
[2024-11-03 02:28:57,815 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 60 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 18 Unchecked, 5.9s Time]
[2024-11-03 02:28:57,816 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2024-11-03 02:28:57,817 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2024-11-03 02:28:57,818 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 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)
[2024-11-03 02:28:57,818 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions.
[2024-11-03 02:28:57,818 INFO  L78                 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14
[2024-11-03 02:28:57,818 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 02:28:57,818 INFO  L471      AbstractCegarLoop]: Abstraction has 16 states and 16 transitions.
[2024-11-03 02:28:57,818 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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)
[2024-11-03 02:28:57,818 INFO  L276                IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions.
[2024-11-03 02:28:57,819 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-11-03 02:28:57,819 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:28:57,819 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 02:28:57,838 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0
[2024-11-03 02:28:58,019 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 02:28:58,020 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:28:58,020 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:28:58,021 INFO  L85        PathProgramCache]: Analyzing trace with hash 1239382277, now seen corresponding path program 1 times
[2024-11-03 02:28:58,021 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:28:58,021 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055905590]
[2024-11-03 02:28:58,021 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:28:58,021 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:28:58,021 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:28:58,023 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 02:28:58,026 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 02:28:59,759 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:28:59,792 INFO  L255         TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-03 02:28:59,794 INFO  L278         TraceCheckSpWp]: Computing forward predicates...