/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 bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0620b.c


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 14:09:41,119 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 14:09:41,196 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 14:09:41,201 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 14:09:41,201 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 14:09:41,223 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 14:09:41,224 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 14:09:41,224 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 14:09:41,225 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 14:09:41,226 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 14:09:41,227 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 14:09:41,227 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 14:09:41,228 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 14:09:41,228 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 14:09:41,228 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 14:09:41,229 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 14:09:41,229 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 14:09:41,229 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 14:09:41,230 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 14:09:41,230 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 14:09:41,230 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 14:09:41,231 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 14:09:41,231 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 14:09:41,231 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 14:09:41,231 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 14:09:41,232 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 14:09:41,232 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 14:09:41,232 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 14:09:41,232 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 14:09:41,233 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 14:09:41,233 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 14:09:41,233 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 14:09:41,234 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 14:09:41,234 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 14:09:41,235 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 14:09:41,235 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 14:09:41,235 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 14:09:41,235 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 14:09:41,236 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 14:09:41,236 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 14:09:41,236 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 14:09:41,236 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 14:09:41,237 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 14:09:41,237 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 14:09:41,237 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 14:09:41,455 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 14:09:41,480 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 14:09:41,485 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 14:09:41,486 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 14:09:41,487 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 14:09:41,489 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0620b.c
[2024-11-03 14:09:42,893 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 14:09:43,064 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 14:09:43,065 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0620b.c
[2024-11-03 14:09:43,071 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58414c93b/a1caba0ecee144fc85059b81e6064d2b/FLAG9c38a40dd
[2024-11-03 14:09:43,088 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58414c93b/a1caba0ecee144fc85059b81e6064d2b
[2024-11-03 14:09:43,090 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 14:09:43,091 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 14:09:43,092 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 14:09:43,093 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 14:09:43,097 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 14:09:43,098 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:09:43" (1/1) ...
[2024-11-03 14:09:43,099 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f69f40a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:43, skipping insertion in model container
[2024-11-03 14:09:43,099 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:09:43" (1/1) ...
[2024-11-03 14:09:43,127 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 14:09:43,307 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/float_req_bl_0620b.c[3330,3343]
[2024-11-03 14:09:43,313 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 14:09:43,328 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 14:09:43,360 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/float_req_bl_0620b.c[3330,3343]
[2024-11-03 14:09:43,361 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 14:09:43,387 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 14:09:43,388 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:43 WrapperNode
[2024-11-03 14:09:43,388 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 14:09:43,389 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 14:09:43,389 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 14:09:43,389 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 14:09:43,396 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:43" (1/1) ...
[2024-11-03 14:09:43,407 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:43" (1/1) ...
[2024-11-03 14:09:43,433 INFO  L138                Inliner]: procedures = 23, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 198
[2024-11-03 14:09:43,434 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 14:09:43,434 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 14:09:43,435 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 14:09:43,435 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 14:09:43,447 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:43" (1/1) ...
[2024-11-03 14:09:43,447 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:43" (1/1) ...
[2024-11-03 14:09:43,452 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:43" (1/1) ...
[2024-11-03 14:09:43,472 INFO  L175           MemorySlicer]: Split 47 memory accesses to 8 slices as follows [2, 2, 2, 7, 7, 2, 23, 2]. 49 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 0, 0, 4, 4, 0, 0, 0]. The 16 writes are split as follows [0, 1, 1, 0, 0, 1, 12, 1].
[2024-11-03 14:09:43,472 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:43" (1/1) ...
[2024-11-03 14:09:43,472 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:43" (1/1) ...
[2024-11-03 14:09:43,485 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:43" (1/1) ...
[2024-11-03 14:09:43,489 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:43" (1/1) ...
[2024-11-03 14:09:43,492 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:43" (1/1) ...
[2024-11-03 14:09:43,494 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:43" (1/1) ...
[2024-11-03 14:09:43,504 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 14:09:43,505 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 14:09:43,505 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 14:09:43,505 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 14:09:43,510 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:43" (1/1) ...
[2024-11-03 14:09:43,520 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 14:09:43,529 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 14:09:43,540 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 14:09:43,544 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 14:09:43,577 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 14:09:43,577 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0
[2024-11-03 14:09:43,577 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1
[2024-11-03 14:09:43,578 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2
[2024-11-03 14:09:43,578 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3
[2024-11-03 14:09:43,579 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4
[2024-11-03 14:09:43,579 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5
[2024-11-03 14:09:43,579 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6
[2024-11-03 14:09:43,579 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7
[2024-11-03 14:09:43,579 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 14:09:43,579 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-03 14:09:43,579 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-11-03 14:09:43,579 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3
[2024-11-03 14:09:43,579 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4
[2024-11-03 14:09:43,580 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5
[2024-11-03 14:09:43,580 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6
[2024-11-03 14:09:43,580 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7
[2024-11-03 14:09:43,580 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-03 14:09:43,580 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0
[2024-11-03 14:09:43,580 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1
[2024-11-03 14:09:43,580 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2
[2024-11-03 14:09:43,580 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3
[2024-11-03 14:09:43,580 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4
[2024-11-03 14:09:43,580 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5
[2024-11-03 14:09:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6
[2024-11-03 14:09:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7
[2024-11-03 14:09:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-11-03 14:09:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-11-03 14:09:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2
[2024-11-03 14:09:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3
[2024-11-03 14:09:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4
[2024-11-03 14:09:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5
[2024-11-03 14:09:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6
[2024-11-03 14:09:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7
[2024-11-03 14:09:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0
[2024-11-03 14:09:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1
[2024-11-03 14:09:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2
[2024-11-03 14:09:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3
[2024-11-03 14:09:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4
[2024-11-03 14:09:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5
[2024-11-03 14:09:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6
[2024-11-03 14:09:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7
[2024-11-03 14:09:43,583 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 14:09:43,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 14:09:43,583 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0
[2024-11-03 14:09:43,583 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1
[2024-11-03 14:09:43,583 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2
[2024-11-03 14:09:43,583 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3
[2024-11-03 14:09:43,583 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4
[2024-11-03 14:09:43,583 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5
[2024-11-03 14:09:43,583 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6
[2024-11-03 14:09:43,583 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7
[2024-11-03 14:09:43,583 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-11-03 14:09:43,584 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2024-11-03 14:09:43,584 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2
[2024-11-03 14:09:43,584 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3
[2024-11-03 14:09:43,584 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4
[2024-11-03 14:09:43,584 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5
[2024-11-03 14:09:43,584 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6
[2024-11-03 14:09:43,584 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7
[2024-11-03 14:09:43,584 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-03 14:09:43,709 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 14:09:43,711 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 14:10:02,972 INFO  L?                        ?]: Removed 39 outVars from TransFormulas that were not future-live.
[2024-11-03 14:10:02,972 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 14:10:02,982 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 14:10:02,982 INFO  L316             CfgBuilder]: Removed 8 assume(true) statements.
[2024-11-03 14:10:02,986 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:10:02 BoogieIcfgContainer
[2024-11-03 14:10:02,987 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 14:10:02,988 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 14:10:02,988 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 14:10:02,991 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 14:10:02,992 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:09:43" (1/3) ...
[2024-11-03 14:10:02,992 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e1e63f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:10:02, skipping insertion in model container
[2024-11-03 14:10:02,992 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:43" (2/3) ...
[2024-11-03 14:10:02,993 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e1e63f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:10:02, skipping insertion in model container
[2024-11-03 14:10:02,993 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:10:02" (3/3) ...
[2024-11-03 14:10:02,994 INFO  L112   eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c
[2024-11-03 14:10:03,009 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 14:10:03,010 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 14:10:03,079 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 14:10:03,086 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;@7e2e67c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 14:10:03,086 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 14:10:03,090 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 35 states, 33 states have (on average 1.6363636363636365) internal successors, (54), 34 states have internal predecessors, (54), 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 14:10:03,096 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-03 14:10:03,097 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 14:10:03,097 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 14:10:03,098 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 14:10:03,103 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 14:10:03,103 INFO  L85        PathProgramCache]: Analyzing trace with hash 1030213693, now seen corresponding path program 1 times
[2024-11-03 14:10:03,113 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 14:10:03,113 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [905964054]
[2024-11-03 14:10:03,114 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 14:10:03,116 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 14:10:03,116 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 14:10:03,119 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 14:10:03,120 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 14:10:03,267 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 14:10:03,269 INFO  L255         TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 14:10:03,273 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 14:10:03,288 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 14:10:03,288 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 14:10:03,291 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 14:10:03,292 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 14:10:03,292 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [905964054]
[2024-11-03 14:10:03,292 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [905964054] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 14:10:03,293 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 14:10:03,293 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 14:10:03,294 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411806939]
[2024-11-03 14:10:03,295 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 14:10:03,298 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 14:10:03,298 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 14:10:03,322 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 14:10:03,323 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 14:10:03,325 INFO  L87              Difference]: Start difference. First operand  has 35 states, 33 states have (on average 1.6363636363636365) internal successors, (54), 34 states have internal predecessors, (54), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 14:10:03,338 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 14:10:03,338 INFO  L93              Difference]: Finished difference Result 68 states and 106 transitions.
[2024-11-03 14:10:03,339 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 14:10:03,340 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10
[2024-11-03 14:10:03,340 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 14:10:03,346 INFO  L225             Difference]: With dead ends: 68
[2024-11-03 14:10:03,346 INFO  L226             Difference]: Without dead ends: 32
[2024-11-03 14:10:03,348 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 14:10:03,351 INFO  L432           NwaCegarLoop]: 45 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, 45 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 14:10:03,352 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 14:10:03,365 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2024-11-03 14:10:03,374 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2024-11-03 14:10:03,375 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 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 14:10:03,376 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions.
[2024-11-03 14:10:03,377 INFO  L78                 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 10
[2024-11-03 14:10:03,377 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 14:10:03,378 INFO  L471      AbstractCegarLoop]: Abstraction has 32 states and 42 transitions.
[2024-11-03 14:10:03,378 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 14:10:03,378 INFO  L276                IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions.
[2024-11-03 14:10:03,379 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-03 14:10:03,379 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 14:10:03,379 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 14:10:03,383 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0
[2024-11-03 14:10:03,579 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 14:10:03,580 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 14:10:03,581 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 14:10:03,581 INFO  L85        PathProgramCache]: Analyzing trace with hash -1305093504, now seen corresponding path program 1 times
[2024-11-03 14:10:03,581 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 14:10:03,581 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962547034]
[2024-11-03 14:10:03,581 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 14:10:03,582 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 14:10:03,582 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 14:10:03,584 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 14:10:03,585 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 14:10:03,711 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 14:10:03,714 INFO  L255         TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-03 14:10:03,716 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 14:10:04,488 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 14:10:04,488 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 14:10:05,832 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 14:10:05,832 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 14:10:05,833 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962547034]
[2024-11-03 14:10:05,833 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [962547034] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 14:10:05,833 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 14:10:05,833 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8
[2024-11-03 14:10:05,833 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482234295]
[2024-11-03 14:10:05,833 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 14:10:05,834 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 14:10:05,834 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 14:10:05,835 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 14:10:05,835 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-11-03 14:10:05,836 INFO  L87              Difference]: Start difference. First operand 32 states and 42 transitions. Second operand  has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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 14:10:07,032 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 14:10:12,532 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 14:10:16,560 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 14:10:20,565 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 14:10:24,581 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 14:10:25,780 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 14:10:31,034 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 14:10:35,044 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 14:10:38,814 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 14:10:43,113 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 14:10:47,116 WARN  L539   Checker$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 14:10:48,458 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 14:10:52,983 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 14:10:56,989 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 14:11:00,999 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 14:11:05,018 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 14:11:09,023 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 14:11:13,029 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 14:11:13,030 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 14:11:13,030 INFO  L93              Difference]: Finished difference Result 40 states and 51 transitions.
[2024-11-03 14:11:13,137 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-03 14:11:13,137 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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 14:11:13,138 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 14:11:13,138 INFO  L225             Difference]: With dead ends: 40
[2024-11-03 14:11:13,138 INFO  L226             Difference]: Without dead ends: 37
[2024-11-03 14:11:13,139 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90
[2024-11-03 14:11:13,140 INFO  L432           NwaCegarLoop]: 27 mSDtfsCounter, 62 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.9s IncrementalHoareTripleChecker+Time
[2024-11-03 14:11:13,140 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 113 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 14 Unknown, 0 Unchecked, 66.9s Time]
[2024-11-03 14:11:13,141 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2024-11-03 14:11:13,145 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34.
[2024-11-03 14:11:13,145 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 34 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 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 14:11:13,145 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions.
[2024-11-03 14:11:13,146 INFO  L78                 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 11
[2024-11-03 14:11:13,146 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 14:11:13,146 INFO  L471      AbstractCegarLoop]: Abstraction has 34 states and 44 transitions.
[2024-11-03 14:11:13,146 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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 14:11:13,146 INFO  L276                IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions.
[2024-11-03 14:11:13,147 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-03 14:11:13,147 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 14:11:13,147 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 14:11:13,149 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Forceful destruction successful, exit code 0
[2024-11-03 14:11:13,347 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 14:11:13,348 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 14:11:13,349 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 14:11:13,349 INFO  L85        PathProgramCache]: Analyzing trace with hash -1813027742, now seen corresponding path program 1 times
[2024-11-03 14:11:13,349 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 14:11:13,349 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148744066]
[2024-11-03 14:11:13,349 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 14:11:13,349 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 14:11:13,350 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 14:11:13,351 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 14:11:13,352 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 14:11:13,510 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 14:11:13,512 INFO  L255         TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-03 14:11:13,514 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 14:11:13,695 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-03 14:11:13,727 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14
[2024-11-03 14:11:14,156 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 14:11:14,156 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 14:11:14,955 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 14:11:14,955 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 14:11:14,955 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148744066]
[2024-11-03 14:11:14,955 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [148744066] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 14:11:14,955 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 14:11:14,956 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8
[2024-11-03 14:11:14,956 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252706163]
[2024-11-03 14:11:14,956 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 14:11:14,957 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 14:11:14,957 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 14:11:14,957 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 14:11:14,958 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-11-03 14:11:14,958 INFO  L87              Difference]: Start difference. First operand 34 states and 44 transitions. Second operand  has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 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 14:11:20,018 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 14:11:24,030 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-03 14:11:28,042 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 14:11:29,118 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 14:11:29,869 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 14:11:29,870 INFO  L93              Difference]: Finished difference Result 49 states and 60 transitions.
[2024-11-03 14:11:29,883 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-03 14:11:29,884 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 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) Word has length 12
[2024-11-03 14:11:29,884 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 14:11:29,884 INFO  L225             Difference]: With dead ends: 49
[2024-11-03 14:11:29,884 INFO  L226             Difference]: Without dead ends: 24
[2024-11-03 14:11:29,885 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90
[2024-11-03 14:11:29,885 INFO  L432           NwaCegarLoop]: 13 mSDtfsCounter, 29 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time
[2024-11-03 14:11:29,886 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 62 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 3 Unknown, 0 Unchecked, 14.6s Time]
[2024-11-03 14:11:29,886 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2024-11-03 14:11:29,889 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23.
[2024-11-03 14:11:29,889 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 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 14:11:29,889 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions.
[2024-11-03 14:11:29,890 INFO  L78                 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 12
[2024-11-03 14:11:29,890 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 14:11:29,890 INFO  L471      AbstractCegarLoop]: Abstraction has 23 states and 25 transitions.
[2024-11-03 14:11:29,890 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 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 14:11:29,890 INFO  L276                IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions.
[2024-11-03 14:11:29,890 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-11-03 14:11:29,891 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 14:11:29,891 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 14:11:29,900 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0
[2024-11-03 14:11:30,091 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 14:11:30,092 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 14:11:30,092 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 14:11:30,092 INFO  L85        PathProgramCache]: Analyzing trace with hash 1850164023, now seen corresponding path program 1 times
[2024-11-03 14:11:30,093 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 14:11:30,093 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1115164403]
[2024-11-03 14:11:30,093 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 14:11:30,093 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 14:11:30,093 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 14:11:30,094 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 14:11:30,095 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 14:11:30,203 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 14:11:30,205 INFO  L255         TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-03 14:11:30,206 INFO  L278         TraceCheckSpWp]: Computing forward predicates...