/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_0832.c


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 02:32:32,292 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 02:32:32,364 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 02:32:32,370 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 02:32:32,370 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 02:32:32,404 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 02:32:32,405 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 02:32:32,405 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 02:32:32,406 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 02:32:32,406 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 02:32:32,406 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 02:32:32,407 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 02:32:32,407 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 02:32:32,408 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 02:32:32,408 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 02:32:32,408 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 02:32:32,409 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 02:32:32,409 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 02:32:32,409 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 02:32:32,410 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 02:32:32,410 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 02:32:32,412 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 02:32:32,412 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 02:32:32,413 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 02:32:32,413 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 02:32:32,413 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 02:32:32,413 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 02:32:32,414 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 02:32:32,414 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 02:32:32,414 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 02:32:32,415 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 02:32:32,415 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 02:32:32,419 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 02:32:32,419 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 02:32:32,419 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 02:32:32,420 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 02:32:32,420 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 02:32:32,420 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 02:32:32,420 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 02:32:32,420 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 02:32:32,421 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 02:32:32,423 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 02:32:32,423 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 02:32:32,424 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 02:32:32,424 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 02:32:32,679 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 02:32:32,702 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 02:32:32,707 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 02:32:32,708 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 02:32:32,708 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 02:32:32,710 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0832.c
[2024-11-03 02:32:34,208 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 02:32:34,416 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 02:32:34,417 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0832.c
[2024-11-03 02:32:34,424 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/725d2902a/8e7b2801cd1441589da055a5f6623938/FLAG2aeb3f7f9
[2024-11-03 02:32:34,811 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/725d2902a/8e7b2801cd1441589da055a5f6623938
[2024-11-03 02:32:34,813 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 02:32:34,814 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 02:32:34,817 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 02:32:34,817 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 02:32:34,823 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 02:32:34,823 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:32:34" (1/1) ...
[2024-11-03 02:32:34,824 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b411950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:34, skipping insertion in model container
[2024-11-03 02:32:34,825 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:32:34" (1/1) ...
[2024-11-03 02:32:34,852 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 02:32:35,062 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_0832.c[3927,3940]
[2024-11-03 02:32:35,067 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 02:32:35,082 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 02:32:35,116 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_0832.c[3927,3940]
[2024-11-03 02:32:35,117 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 02:32:35,139 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 02:32:35,139 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:35 WrapperNode
[2024-11-03 02:32:35,140 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 02:32:35,141 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 02:32:35,141 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 02:32:35,141 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 02:32:35,147 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:35" (1/1) ...
[2024-11-03 02:32:35,158 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:35" (1/1) ...
[2024-11-03 02:32:35,199 INFO  L138                Inliner]: procedures = 20, calls = 48, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 186
[2024-11-03 02:32:35,200 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 02:32:35,201 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 02:32:35,201 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 02:32:35,201 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 02:32:35,212 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:35" (1/1) ...
[2024-11-03 02:32:35,212 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:35" (1/1) ...
[2024-11-03 02:32:35,218 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:35" (1/1) ...
[2024-11-03 02:32:35,237 INFO  L175           MemorySlicer]: Split 27 memory accesses to 10 slices as follows [2, 2, 2, 3, 4, 4, 3, 2, 2, 3]. 15 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 0, 0, 2, 2, 2, 0, 0, 0, 0]. The 8 writes are split as follows [0, 1, 1, 0, 0, 0, 2, 1, 1, 2].
[2024-11-03 02:32:35,238 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:35" (1/1) ...
[2024-11-03 02:32:35,255 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:35" (1/1) ...
[2024-11-03 02:32:35,275 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:35" (1/1) ...
[2024-11-03 02:32:35,279 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:35" (1/1) ...
[2024-11-03 02:32:35,286 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:35" (1/1) ...
[2024-11-03 02:32:35,289 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:35" (1/1) ...
[2024-11-03 02:32:35,305 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 02:32:35,307 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 02:32:35,307 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 02:32:35,307 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 02:32:35,308 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:35" (1/1) ...
[2024-11-03 02:32:35,317 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 02:32:35,329 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 02:32:35,347 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 02:32:35,351 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 02:32:35,383 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 02:32:35,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0
[2024-11-03 02:32:35,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1
[2024-11-03 02:32:35,384 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2
[2024-11-03 02:32:35,384 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3
[2024-11-03 02:32:35,384 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4
[2024-11-03 02:32:35,384 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5
[2024-11-03 02:32:35,384 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6
[2024-11-03 02:32:35,384 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#7
[2024-11-03 02:32:35,384 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#8
[2024-11-03 02:32:35,384 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#9
[2024-11-03 02:32:35,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0
[2024-11-03 02:32:35,385 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1
[2024-11-03 02:32:35,385 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2
[2024-11-03 02:32:35,385 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3
[2024-11-03 02:32:35,385 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4
[2024-11-03 02:32:35,385 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5
[2024-11-03 02:32:35,385 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6
[2024-11-03 02:32:35,385 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#7
[2024-11-03 02:32:35,385 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#8
[2024-11-03 02:32:35,385 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#9
[2024-11-03 02:32:35,386 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 02:32:35,386 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-03 02:32:35,386 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-11-03 02:32:35,386 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3
[2024-11-03 02:32:35,386 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4
[2024-11-03 02:32:35,386 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5
[2024-11-03 02:32:35,386 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6
[2024-11-03 02:32:35,386 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7
[2024-11-03 02:32:35,387 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8
[2024-11-03 02:32:35,387 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9
[2024-11-03 02:32:35,387 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-03 02:32:35,387 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0
[2024-11-03 02:32:35,387 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1
[2024-11-03 02:32:35,389 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2
[2024-11-03 02:32:35,389 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3
[2024-11-03 02:32:35,389 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4
[2024-11-03 02:32:35,391 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5
[2024-11-03 02:32:35,391 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6
[2024-11-03 02:32:35,391 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#7
[2024-11-03 02:32:35,392 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#8
[2024-11-03 02:32:35,392 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#9
[2024-11-03 02:32:35,392 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-11-03 02:32:35,392 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-11-03 02:32:35,392 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2
[2024-11-03 02:32:35,392 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3
[2024-11-03 02:32:35,392 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4
[2024-11-03 02:32:35,392 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5
[2024-11-03 02:32:35,392 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6
[2024-11-03 02:32:35,392 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7
[2024-11-03 02:32:35,393 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8
[2024-11-03 02:32:35,393 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9
[2024-11-03 02:32:35,393 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 02:32:35,393 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 02:32:35,393 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-11-03 02:32:35,393 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2024-11-03 02:32:35,393 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2
[2024-11-03 02:32:35,393 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3
[2024-11-03 02:32:35,393 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4
[2024-11-03 02:32:35,394 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5
[2024-11-03 02:32:35,394 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6
[2024-11-03 02:32:35,394 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7
[2024-11-03 02:32:35,394 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8
[2024-11-03 02:32:35,394 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9
[2024-11-03 02:32:35,395 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-03 02:32:35,601 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 02:32:35,604 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 02:32:55,648 INFO  L?                        ?]: Removed 36 outVars from TransFormulas that were not future-live.
[2024-11-03 02:32:55,648 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 02:32:55,658 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 02:32:55,658 INFO  L316             CfgBuilder]: Removed 12 assume(true) statements.
[2024-11-03 02:32:55,658 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:32:55 BoogieIcfgContainer
[2024-11-03 02:32:55,658 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 02:32:55,660 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 02:32:55,660 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 02:32:55,667 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 02:32:55,667 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:32:34" (1/3) ...
[2024-11-03 02:32:55,669 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c7a4d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:32:55, skipping insertion in model container
[2024-11-03 02:32:55,669 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:35" (2/3) ...
[2024-11-03 02:32:55,669 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c7a4d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:32:55, skipping insertion in model container
[2024-11-03 02:32:55,669 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:32:55" (3/3) ...
[2024-11-03 02:32:55,671 INFO  L112   eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c
[2024-11-03 02:32:55,682 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 02:32:55,683 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 02:32:55,731 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 02:32:55,737 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;@79323a10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 02:32:55,738 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 02:32:55,741 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 39 states, 37 states have (on average 1.7027027027027026) internal successors, (63), 38 states have internal predecessors, (63), 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 02:32:55,746 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-03 02:32:55,747 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:32:55,748 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 02:32:55,749 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:32:55,754 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:32:55,754 INFO  L85        PathProgramCache]: Analyzing trace with hash 841509721, now seen corresponding path program 1 times
[2024-11-03 02:32:55,762 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:32:55,762 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76967474]
[2024-11-03 02:32:55,762 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:32:55,764 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:32:55,765 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:32:55,767 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 02:32:55,770 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 02:32:56,294 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:32:56,311 INFO  L255         TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 02:32:56,316 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 02:32:56,329 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 02:32:56,329 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 02:32:56,332 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 02:32:56,333 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 02:32:56,333 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76967474]
[2024-11-03 02:32:56,334 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [76967474] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 02:32:56,334 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 02:32:56,334 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 02:32:56,335 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927877669]
[2024-11-03 02:32:56,336 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 02:32:56,340 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 02:32:56,340 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 02:32:56,361 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 02:32:56,361 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 02:32:56,363 INFO  L87              Difference]: Start difference. First operand  has 39 states, 37 states have (on average 1.7027027027027026) internal successors, (63), 38 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 02:32:56,383 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 02:32:56,383 INFO  L93              Difference]: Finished difference Result 75 states and 122 transitions.
[2024-11-03 02:32:56,385 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 02:32:56,387 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2024-11-03 02:32:56,387 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 02:32:56,394 INFO  L225             Difference]: With dead ends: 75
[2024-11-03 02:32:56,394 INFO  L226             Difference]: Without dead ends: 35
[2024-11-03 02:32:56,397 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 02:32:56,400 INFO  L432           NwaCegarLoop]: 50 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, 50 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 02:32:56,401 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 02:32:56,414 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 35 states.
[2024-11-03 02:32:56,424 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35.
[2024-11-03 02:32:56,426 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 35 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 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 02:32:56,426 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions.
[2024-11-03 02:32:56,428 INFO  L78                 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 11
[2024-11-03 02:32:56,428 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 02:32:56,428 INFO  L471      AbstractCegarLoop]: Abstraction has 35 states and 45 transitions.
[2024-11-03 02:32:56,428 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 02:32:56,428 INFO  L276                IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions.
[2024-11-03 02:32:56,429 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-03 02:32:56,429 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:32:56,429 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 02:32:56,437 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 02:32:56,630 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 02:32:56,631 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:32:56,632 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:32:56,632 INFO  L85        PathProgramCache]: Analyzing trace with hash 957201089, now seen corresponding path program 1 times
[2024-11-03 02:32:56,632 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:32:56,632 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771034669]
[2024-11-03 02:32:56,632 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:32:56,633 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:32:56,633 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:32:56,636 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 02:32:56,638 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 02:32:58,611 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:32:58,631 INFO  L255         TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-03 02:32:58,634 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 02:33:01,102 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 02:33:01,102 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 02:33:03,317 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 02:33:03,317 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 02:33:03,317 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771034669]
[2024-11-03 02:33:03,318 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1771034669] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 02:33:03,318 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 02:33:03,318 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 10
[2024-11-03 02:33:03,319 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560248486]
[2024-11-03 02:33:03,319 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 02:33:03,321 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-03 02:33:03,321 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 02:33:03,322 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-03 02:33:03,322 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90
[2024-11-03 02:33:03,322 INFO  L87              Difference]: Start difference. First operand 35 states and 45 transitions. Second operand  has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 02:33:09,655 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 02:33:13,677 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-03 02:33:17,694 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-03 02:33:22,456 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 02:33:26,476 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 02:33:30,490 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 02:33:34,517 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-03 02:33:38,579 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-03 02:33:42,594 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 02:33:46,609 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 02:33:50,615 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 02:33:55,326 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 02:33:59,350 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 02:34:03,360 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 02:34:07,393 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-03 02:34:11,424 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-03 02:34:12,610 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 02:34:12,614 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 02:34:12,614 INFO  L93              Difference]: Finished difference Result 55 states and 69 transitions.
[2024-11-03 02:34:12,859 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-03 02:34:12,859 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12
[2024-11-03 02:34:12,860 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 02:34:12,860 INFO  L225             Difference]: With dead ends: 55
[2024-11-03 02:34:12,860 INFO  L226             Difference]: Without dead ends: 27
[2024-11-03 02:34:12,861 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90
[2024-11-03 02:34:12,861 INFO  L432           NwaCegarLoop]: 19 mSDtfsCounter, 35 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.3s IncrementalHoareTripleChecker+Time
[2024-11-03 02:34:12,862 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 65 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 16 Unknown, 0 Unchecked, 69.3s Time]
[2024-11-03 02:34:12,863 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2024-11-03 02:34:12,865 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27.
[2024-11-03 02:34:12,865 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 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 02:34:12,865 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions.
[2024-11-03 02:34:12,866 INFO  L78                 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 12
[2024-11-03 02:34:12,866 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 02:34:12,866 INFO  L471      AbstractCegarLoop]: Abstraction has 27 states and 29 transitions.
[2024-11-03 02:34:12,866 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 02:34:12,866 INFO  L276                IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions.
[2024-11-03 02:34:12,866 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-03 02:34:12,867 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:34:12,867 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 02:34:12,881 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 02:34:13,067 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 02:34:13,068 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:34:13,068 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:34:13,068 INFO  L85        PathProgramCache]: Analyzing trace with hash 455664593, now seen corresponding path program 1 times
[2024-11-03 02:34:13,068 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:34:13,069 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060541648]
[2024-11-03 02:34:13,069 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:34:13,069 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:34:13,069 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:34:13,071 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 02:34:13,072 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 02:34:14,279 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:34:14,298 INFO  L255         TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-03 02:34:14,301 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 02:34:19,368 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 02:34:19,368 INFO  L311         TraceCheckSpWp]: Computing backward predicates...