/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_0680a.c


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 02:30:23,964 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 02:30:24,048 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 02:30:24,053 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 02:30:24,053 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 02:30:24,081 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 02:30:24,081 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 02:30:24,082 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 02:30:24,082 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 02:30:24,082 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 02:30:24,083 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 02:30:24,083 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 02:30:24,084 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 02:30:24,084 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 02:30:24,084 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 02:30:24,085 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 02:30:24,085 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 02:30:24,085 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 02:30:24,086 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 02:30:24,086 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 02:30:24,086 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 02:30:24,087 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 02:30:24,087 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 02:30:24,087 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 02:30:24,088 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 02:30:24,088 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 02:30:24,088 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 02:30:24,089 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 02:30:24,089 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 02:30:24,089 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 02:30:24,090 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 02:30:24,090 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 02:30:24,094 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 02:30:24,095 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 02:30:24,095 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 02:30:24,095 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 02:30:24,095 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 02:30:24,096 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 02:30:24,096 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 02:30:24,096 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 02:30:24,096 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 02:30:24,099 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 02:30:24,099 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 02:30:24,099 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 02:30:24,099 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 02:30:24,324 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 02:30:24,349 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 02:30:24,352 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 02:30:24,353 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 02:30:24,353 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 02:30:24,354 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0680a.c
[2024-11-03 02:30:25,825 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 02:30:26,030 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 02:30:26,031 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0680a.c
[2024-11-03 02:30:26,043 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b570f3886/07275233d30e482092c6847ca2158385/FLAG34b460a54
[2024-11-03 02:30:26,055 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b570f3886/07275233d30e482092c6847ca2158385
[2024-11-03 02:30:26,057 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 02:30:26,058 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 02:30:26,060 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 02:30:26,060 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 02:30:26,064 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 02:30:26,064 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:30:26" (1/1) ...
[2024-11-03 02:30:26,065 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@90317d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:26, skipping insertion in model container
[2024-11-03 02:30:26,065 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:30:26" (1/1) ...
[2024-11-03 02:30:26,094 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 02:30:26,324 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_0680a.c[6165,6178]
[2024-11-03 02:30:26,329 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 02:30:26,344 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 02:30:26,415 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_0680a.c[6165,6178]
[2024-11-03 02:30:26,415 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 02:30:26,443 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 02:30:26,443 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:26 WrapperNode
[2024-11-03 02:30:26,443 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 02:30:26,445 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 02:30:26,445 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 02:30:26,445 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 02:30:26,451 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:26" (1/1) ...
[2024-11-03 02:30:26,466 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:26" (1/1) ...
[2024-11-03 02:30:26,493 INFO  L138                Inliner]: procedures = 23, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 225
[2024-11-03 02:30:26,494 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 02:30:26,497 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 02:30:26,497 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 02:30:26,497 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 02:30:26,508 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:26" (1/1) ...
[2024-11-03 02:30:26,509 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:26" (1/1) ...
[2024-11-03 02:30:26,524 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:26" (1/1) ...
[2024-11-03 02:30:26,546 INFO  L175           MemorySlicer]: Split 59 memory accesses to 12 slices as follows [2, 2, 2, 7, 7, 23, 2, 3, 3, 2, 3, 3]. 39 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [0, 0, 2, 4, 4, 0, 0, 0, 0, 0, 0, 0]. The 22 writes are split as follows [1, 1, 0, 0, 0, 12, 1, 1, 1, 1, 2, 2].
[2024-11-03 02:30:26,546 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:26" (1/1) ...
[2024-11-03 02:30:26,547 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:26" (1/1) ...
[2024-11-03 02:30:26,570 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:26" (1/1) ...
[2024-11-03 02:30:26,581 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:26" (1/1) ...
[2024-11-03 02:30:26,592 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:26" (1/1) ...
[2024-11-03 02:30:26,595 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:26" (1/1) ...
[2024-11-03 02:30:26,602 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 02:30:26,603 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 02:30:26,603 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 02:30:26,604 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 02:30:26,604 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:26" (1/1) ...
[2024-11-03 02:30:26,613 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 02:30:26,625 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 02:30:26,650 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 02:30:26,660 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 02:30:26,691 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 02:30:26,691 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0
[2024-11-03 02:30:26,691 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1
[2024-11-03 02:30:26,691 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2
[2024-11-03 02:30:26,691 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3
[2024-11-03 02:30:26,691 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4
[2024-11-03 02:30:26,692 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5
[2024-11-03 02:30:26,692 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6
[2024-11-03 02:30:26,692 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#7
[2024-11-03 02:30:26,696 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#8
[2024-11-03 02:30:26,696 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#9
[2024-11-03 02:30:26,697 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#10
[2024-11-03 02:30:26,697 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#11
[2024-11-03 02:30:26,697 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#0
[2024-11-03 02:30:26,697 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#1
[2024-11-03 02:30:26,697 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#2
[2024-11-03 02:30:26,697 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#3
[2024-11-03 02:30:26,697 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#4
[2024-11-03 02:30:26,697 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#5
[2024-11-03 02:30:26,698 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#6
[2024-11-03 02:30:26,698 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#7
[2024-11-03 02:30:26,698 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#8
[2024-11-03 02:30:26,698 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#9
[2024-11-03 02:30:26,698 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#10
[2024-11-03 02:30:26,698 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#11
[2024-11-03 02:30:26,698 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0
[2024-11-03 02:30:26,699 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1
[2024-11-03 02:30:26,699 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2
[2024-11-03 02:30:26,699 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3
[2024-11-03 02:30:26,699 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4
[2024-11-03 02:30:26,702 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5
[2024-11-03 02:30:26,702 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6
[2024-11-03 02:30:26,702 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#7
[2024-11-03 02:30:26,702 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#8
[2024-11-03 02:30:26,702 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#9
[2024-11-03 02:30:26,703 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#10
[2024-11-03 02:30:26,703 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#11
[2024-11-03 02:30:26,703 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 02:30:26,703 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-03 02:30:26,703 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-11-03 02:30:26,703 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3
[2024-11-03 02:30:26,703 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4
[2024-11-03 02:30:26,704 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5
[2024-11-03 02:30:26,704 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6
[2024-11-03 02:30:26,704 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7
[2024-11-03 02:30:26,704 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8
[2024-11-03 02:30:26,704 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9
[2024-11-03 02:30:26,704 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10
[2024-11-03 02:30:26,704 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11
[2024-11-03 02:30:26,704 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-03 02:30:26,705 INFO  L130     BoogieDeclarations]: Found specification of procedure fabs_double
[2024-11-03 02:30:26,705 INFO  L138     BoogieDeclarations]: Found implementation of procedure fabs_double
[2024-11-03 02:30:26,705 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0
[2024-11-03 02:30:26,705 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1
[2024-11-03 02:30:26,707 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2
[2024-11-03 02:30:26,707 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3
[2024-11-03 02:30:26,707 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4
[2024-11-03 02:30:26,707 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5
[2024-11-03 02:30:26,708 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6
[2024-11-03 02:30:26,708 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#7
[2024-11-03 02:30:26,708 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#8
[2024-11-03 02:30:26,708 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#9
[2024-11-03 02:30:26,708 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#10
[2024-11-03 02:30:26,708 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#11
[2024-11-03 02:30:26,708 INFO  L130     BoogieDeclarations]: Found specification of procedure atan_double
[2024-11-03 02:30:26,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure atan_double
[2024-11-03 02:30:26,708 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-11-03 02:30:26,709 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-11-03 02:30:26,709 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2
[2024-11-03 02:30:26,709 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3
[2024-11-03 02:30:26,709 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4
[2024-11-03 02:30:26,709 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5
[2024-11-03 02:30:26,709 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6
[2024-11-03 02:30:26,709 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7
[2024-11-03 02:30:26,709 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8
[2024-11-03 02:30:26,710 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9
[2024-11-03 02:30:26,710 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10
[2024-11-03 02:30:26,710 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11
[2024-11-03 02:30:26,710 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 02:30:26,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 02:30:26,712 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-11-03 02:30:26,712 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2024-11-03 02:30:26,712 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2
[2024-11-03 02:30:26,712 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3
[2024-11-03 02:30:26,712 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4
[2024-11-03 02:30:26,713 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5
[2024-11-03 02:30:26,713 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6
[2024-11-03 02:30:26,713 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7
[2024-11-03 02:30:26,713 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8
[2024-11-03 02:30:26,713 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9
[2024-11-03 02:30:26,714 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10
[2024-11-03 02:30:26,714 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11
[2024-11-03 02:30:26,714 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-03 02:30:26,958 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 02:30:26,963 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 02:31:07,440 INFO  L?                        ?]: Removed 85 outVars from TransFormulas that were not future-live.
[2024-11-03 02:31:07,440 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 02:31:07,460 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 02:31:07,461 INFO  L316             CfgBuilder]: Removed 16 assume(true) statements.
[2024-11-03 02:31:07,461 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:31:07 BoogieIcfgContainer
[2024-11-03 02:31:07,461 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 02:31:07,464 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 02:31:07,464 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 02:31:07,469 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 02:31:07,469 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:30:26" (1/3) ...
[2024-11-03 02:31:07,470 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b0bf75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:31:07, skipping insertion in model container
[2024-11-03 02:31:07,471 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:26" (2/3) ...
[2024-11-03 02:31:07,471 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b0bf75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:31:07, skipping insertion in model container
[2024-11-03 02:31:07,471 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:31:07" (3/3) ...
[2024-11-03 02:31:07,473 INFO  L112   eAbstractionObserver]: Analyzing ICFG double_req_bl_0680a.c
[2024-11-03 02:31:07,489 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 02:31:07,489 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 02:31:07,553 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 02:31:07,563 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;@2e89fc25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 02:31:07,563 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 02:31:07,569 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 86 states, 78 states have (on average 1.6794871794871795) internal successors, (131), 79 states have internal predecessors, (131), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-03 02:31:07,576 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-03 02:31:07,577 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:31:07,579 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 02:31:07,580 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:31:07,586 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:31:07,587 INFO  L85        PathProgramCache]: Analyzing trace with hash 1416917136, now seen corresponding path program 1 times
[2024-11-03 02:31:07,599 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:31:07,599 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1283536104]
[2024-11-03 02:31:07,600 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:31:07,602 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:31:07,603 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:31:07,606 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 02:31:07,609 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 02:31:08,745 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:31:08,817 INFO  L255         TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 02:31:08,821 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 02:31:08,837 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 02:31:08,837 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 02:31:08,842 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 02:31:08,845 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 02:31:08,846 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1283536104]
[2024-11-03 02:31:08,847 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1283536104] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 02:31:08,847 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 02:31:08,847 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 02:31:08,849 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881391933]
[2024-11-03 02:31:08,850 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 02:31:08,856 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 02:31:08,857 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 02:31:08,881 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 02:31:08,883 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 02:31:08,887 INFO  L87              Difference]: Start difference. First operand  has 86 states, 78 states have (on average 1.6794871794871795) internal successors, (131), 79 states have internal predecessors, (131), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) 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 02:31:08,930 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 02:31:08,931 INFO  L93              Difference]: Finished difference Result 170 states and 280 transitions.
[2024-11-03 02:31:08,933 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 02:31:08,935 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 02:31:08,935 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 02:31:08,947 INFO  L225             Difference]: With dead ends: 170
[2024-11-03 02:31:08,947 INFO  L226             Difference]: Without dead ends: 83
[2024-11-03 02:31:08,951 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 02:31:08,958 INFO  L432           NwaCegarLoop]: 122 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, 122 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 02:31:08,960 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 02:31:08,979 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 83 states.
[2024-11-03 02:31:09,006 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83.
[2024-11-03 02:31:09,008 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 83 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 76 states have internal predecessors, (111), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-03 02:31:09,012 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 119 transitions.
[2024-11-03 02:31:09,014 INFO  L78                 Accepts]: Start accepts. Automaton has 83 states and 119 transitions. Word has length 10
[2024-11-03 02:31:09,014 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 02:31:09,015 INFO  L471      AbstractCegarLoop]: Abstraction has 83 states and 119 transitions.
[2024-11-03 02:31:09,015 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 02:31:09,015 INFO  L276                IsEmpty]: Start isEmpty. Operand 83 states and 119 transitions.
[2024-11-03 02:31:09,015 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-03 02:31:09,016 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:31:09,016 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 02:31:09,028 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 02:31:09,217 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 02:31:09,218 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:31:09,218 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:31:09,218 INFO  L85        PathProgramCache]: Analyzing trace with hash 194980505, now seen corresponding path program 1 times
[2024-11-03 02:31:09,219 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:31:09,219 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698437345]
[2024-11-03 02:31:09,219 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:31:09,219 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:31:09,219 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:31:09,220 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 02:31:09,221 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 02:31:12,184 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:31:12,262 INFO  L255         TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-03 02:31:12,266 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 02:31:19,521 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 02:31:19,521 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 02:31:32,198 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 02:31:32,199 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 02:31:32,199 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698437345]
[2024-11-03 02:31:32,199 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1698437345] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 02:31:32,199 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 02:31:32,200 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12
[2024-11-03 02:31:32,200 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190118210]
[2024-11-03 02:31:32,200 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 02:31:32,201 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-03 02:31:32,201 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 02:31:32,202 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-03 02:31:32,202 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132
[2024-11-03 02:31:32,203 INFO  L87              Difference]: Start difference. First operand 83 states and 119 transitions. Second operand  has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 02:31:44,971 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 02:31:44,971 INFO  L93              Difference]: Finished difference Result 148 states and 205 transitions.
[2024-11-03 02:31:44,973 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-03 02:31:44,973 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12
[2024-11-03 02:31:44,973 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 02:31:44,977 INFO  L225             Difference]: With dead ends: 148
[2024-11-03 02:31:44,977 INFO  L226             Difference]: Without dead ends: 84
[2024-11-03 02:31:44,978 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272
[2024-11-03 02:31:44,979 INFO  L432           NwaCegarLoop]: 79 mSDtfsCounter, 198 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time
[2024-11-03 02:31:44,980 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 481 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time]
[2024-11-03 02:31:44,983 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 84 states.
[2024-11-03 02:31:44,990 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 70.
[2024-11-03 02:31:44,990 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 70 states, 64 states have (on average 1.34375) internal successors, (86), 64 states have internal predecessors, (86), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-03 02:31:44,991 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 92 transitions.
[2024-11-03 02:31:44,992 INFO  L78                 Accepts]: Start accepts. Automaton has 70 states and 92 transitions. Word has length 12
[2024-11-03 02:31:44,992 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 02:31:44,992 INFO  L471      AbstractCegarLoop]: Abstraction has 70 states and 92 transitions.
[2024-11-03 02:31:44,992 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 02:31:44,993 INFO  L276                IsEmpty]: Start isEmpty. Operand 70 states and 92 transitions.
[2024-11-03 02:31:44,993 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-11-03 02:31:44,993 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:31:44,993 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 02:31:45,016 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0
[2024-11-03 02:31:45,194 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 02:31:45,195 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:31:45,195 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:31:45,195 INFO  L85        PathProgramCache]: Analyzing trace with hash -1034986538, now seen corresponding path program 1 times
[2024-11-03 02:31:45,196 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:31:45,196 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2098596312]
[2024-11-03 02:31:45,196 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:31:45,196 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:31:45,196 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:31:45,198 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 02:31:45,199 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 02:31:47,738 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:31:47,805 INFO  L255         TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-03 02:31:47,807 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 02:31:52,014 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 02:31:52,014 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 02:31:55,843 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 02:31:55,844 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 02:31:55,844 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2098596312]
[2024-11-03 02:31:55,844 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2098596312] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 02:31:55,844 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 02:31:55,844 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8
[2024-11-03 02:31:55,845 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49390106]
[2024-11-03 02:31:55,845 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 02:31:55,845 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 02:31:55,845 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 02:31:55,846 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 02:31:55,846 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-03 02:31:55,846 INFO  L87              Difference]: Start difference. First operand 70 states and 92 transitions. Second operand  has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 02:32:00,284 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 02:32:00,285 INFO  L93              Difference]: Finished difference Result 124 states and 163 transitions.
[2024-11-03 02:32:00,285 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-03 02:32:00,286 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2024-11-03 02:32:00,286 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 02:32:00,287 INFO  L225             Difference]: With dead ends: 124
[2024-11-03 02:32:00,287 INFO  L226             Difference]: Without dead ends: 71
[2024-11-03 02:32:00,287 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90
[2024-11-03 02:32:00,288 INFO  L432           NwaCegarLoop]: 86 mSDtfsCounter, 84 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2024-11-03 02:32:00,289 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 293 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2024-11-03 02:32:00,289 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2024-11-03 02:32:00,296 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70.
[2024-11-03 02:32:00,296 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 70 states, 64 states have (on average 1.328125) internal successors, (85), 64 states have internal predecessors, (85), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-03 02:32:00,297 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 91 transitions.
[2024-11-03 02:32:00,297 INFO  L78                 Accepts]: Start accepts. Automaton has 70 states and 91 transitions. Word has length 15
[2024-11-03 02:32:00,298 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 02:32:00,298 INFO  L471      AbstractCegarLoop]: Abstraction has 70 states and 91 transitions.
[2024-11-03 02:32:00,298 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 02:32:00,298 INFO  L276                IsEmpty]: Start isEmpty. Operand 70 states and 91 transitions.
[2024-11-03 02:32:00,298 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-03 02:32:00,299 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:32:00,299 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 02:32:00,322 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2024-11-03 02:32:00,499 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 02:32:00,500 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:32:00,500 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:32:00,500 INFO  L85        PathProgramCache]: Analyzing trace with hash -704934156, now seen corresponding path program 1 times
[2024-11-03 02:32:00,501 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:32:00,501 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380121400]
[2024-11-03 02:32:00,501 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:32:00,501 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:32:00,501 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:32:00,504 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 02:32:00,506 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 02:32:02,770 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:32:02,828 INFO  L255         TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-03 02:32:02,830 INFO  L278         TraceCheckSpWp]: Computing forward predicates...