/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_1032c.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 14:16:19,254 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-03 14:16:19,333 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 14:16:19,339 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 14:16:19,339 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 14:16:19,365 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 14:16:19,366 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 14:16:19,366 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 14:16:19,367 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 14:16:19,367 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-03 14:16:19,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 14:16:19,368 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 14:16:19,369 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 14:16:19,369 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-03 14:16:19,369 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-03 14:16:19,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 14:16:19,370 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-03 14:16:19,370 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-03 14:16:19,371 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-03 14:16:19,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-03 14:16:19,371 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 14:16:19,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 14:16:19,372 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 14:16:19,372 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-03 14:16:19,373 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-03 14:16:19,373 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-03 14:16:19,373 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 14:16:19,373 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-03 14:16:19,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-03 14:16:19,374 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-03 14:16:19,374 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 14:16:19,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-03 14:16:19,375 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 14:16:19,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-03 14:16:19,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 14:16:19,376 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 14:16:19,376 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 14:16:19,376 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 14:16:19,376 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2024-11-03 14:16:19,376 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 14:16:19,377 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 14:16:19,377 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 14:16:19,377 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 14:16:19,377 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 14:16:19,378 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 14:16:19,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 14:16:19,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 14:16:19,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 14:16:19,653 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-03 14:16:19,654 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-03 14:16:19,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1032c.c
[2024-11-03 14:16:21,089 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-03 14:16:21,261 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-03 14:16:21,261 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1032c.c
[2024-11-03 14:16:21,269 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af16944e7/7be6468fcc1c4fa28649c930e794079e/FLAGa65fe7625
[2024-11-03 14:16:21,285 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af16944e7/7be6468fcc1c4fa28649c930e794079e
[2024-11-03 14:16:21,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 14:16:21,290 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 14:16:21,292 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 14:16:21,292 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 14:16:21,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 14:16:21,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:16:21" (1/1) ...
[2024-11-03 14:16:21,300 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15b81b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:21, skipping insertion in model container
[2024-11-03 14:16:21,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:16:21" (1/1) ...
[2024-11-03 14:16:21,322 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-03 14:16:21,493 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_1032c.c[1743,1756]
[2024-11-03 14:16:21,496 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-03 14:16:21,509 INFO L200 MainTranslator]: Completed pre-run
[2024-11-03 14:16:21,530 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_1032c.c[1743,1756]
[2024-11-03 14:16:21,531 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-03 14:16:21,550 INFO L204 MainTranslator]: Completed translation
[2024-11-03 14:16:21,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:21 WrapperNode
[2024-11-03 14:16:21,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 14:16:21,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 14:16:21,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 14:16:21,552 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 14:16:21,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:21" (1/1) ...
[2024-11-03 14:16:21,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:21" (1/1) ...
[2024-11-03 14:16:21,583 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 87
[2024-11-03 14:16:21,583 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 14:16:21,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 14:16:21,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 14:16:21,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 14:16:21,593 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:21" (1/1) ...
[2024-11-03 14:16:21,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:21" (1/1) ...
[2024-11-03 14:16:21,597 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:21" (1/1) ...
[2024-11-03 14:16:21,614 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1].
[2024-11-03 14:16:21,614 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:21" (1/1) ...
[2024-11-03 14:16:21,614 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:21" (1/1) ...
[2024-11-03 14:16:21,623 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:21" (1/1) ...
[2024-11-03 14:16:21,626 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:21" (1/1) ...
[2024-11-03 14:16:21,628 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:21" (1/1) ...
[2024-11-03 14:16:21,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:21" (1/1) ...
[2024-11-03 14:16:21,632 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 14:16:21,633 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 14:16:21,634 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 14:16:21,634 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-03 14:16:21,634 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:21" (1/1) ...
[2024-11-03 14:16:21,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 14:16:21,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 14:16:21,677 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 14:16:21,681 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 14:16:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 14:16:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 14:16:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-03 14:16:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-11-03 14:16:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3
[2024-11-03 14:16:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-03 14:16:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0
[2024-11-03 14:16:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1
[2024-11-03 14:16:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2
[2024-11-03 14:16:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3
[2024-11-03 14:16:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-11-03 14:16:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-11-03 14:16:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2
[2024-11-03 14:16:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3
[2024-11-03 14:16:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 14:16:21,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 14:16:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0
[2024-11-03 14:16:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1
[2024-11-03 14:16:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2
[2024-11-03 14:16:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3
[2024-11-03 14:16:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-11-03 14:16:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2024-11-03 14:16:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2
[2024-11-03 14:16:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3
[2024-11-03 14:16:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-03 14:16:21,818 INFO L238 CfgBuilder]: Building ICFG
[2024-11-03 14:16:21,820 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 14:16:22,045 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live.
[2024-11-03 14:16:22,045 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-03 14:16:22,061 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 14:16:22,061 INFO L316 CfgBuilder]: Removed 6 assume(true) statements.
[2024-11-03 14:16:22,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:16:22 BoogieIcfgContainer
[2024-11-03 14:16:22,062 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 14:16:22,065 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 14:16:22,065 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 14:16:22,068 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-03 14:16:22,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:16:21" (1/3) ...
[2024-11-03 14:16:22,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1632f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:16:22, skipping insertion in model container
[2024-11-03 14:16:22,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:21" (2/3) ...
[2024-11-03 14:16:22,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1632f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:16:22, skipping insertion in model container
[2024-11-03 14:16:22,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:16:22" (3/3) ...
[2024-11-03 14:16:22,071 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032c.c
[2024-11-03 14:16:22,091 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 14:16:22,091 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 14:16:22,142 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 14:16:22,148 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;@5e18154f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 14:16:22,148 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 14:16:22,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 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 14:16:22,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-03 14:16:22,155 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-03 14:16:22,156 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 14:16:22,156 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 14:16:22,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 14:16:22,160 INFO L85 PathProgramCache]: Analyzing trace with hash -592327338, now seen corresponding path program 1 times
[2024-11-03 14:16:22,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 14:16:22,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963688138]
[2024-11-03 14:16:22,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 14:16:22,168 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 14:16:22,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 14:16:22,170 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 14:16:22,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 14:16:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 14:16:22,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 14:16:22,251 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 14:16:22,264 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 14:16:22,265 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 14:16:22,268 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 14:16:22,270 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 14:16:22,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963688138]
[2024-11-03 14:16:22,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1963688138] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 14:16:22,271 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 14:16:22,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 14:16:22,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010015797]
[2024-11-03 14:16:22,274 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 14:16:22,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 14:16:22,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 14:16:22,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 14:16:22,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 14:16:22,303 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 14:16:22,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 14:16:22,317 INFO L93 Difference]: Finished difference Result 46 states and 68 transitions.
[2024-11-03 14:16:22,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-03 14:16:22,322 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12
[2024-11-03 14:16:22,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 14:16:22,330 INFO L225 Difference]: With dead ends: 46
[2024-11-03 14:16:22,331 INFO L226 Difference]: Without dead ends: 21
[2024-11-03 14:16:22,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 14:16:22,339 INFO L432 NwaCegarLoop]: 28 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, 28 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 14:16:22,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 14:16:22,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2024-11-03 14:16:22,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2024-11-03 14:16:22,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 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 14:16:22,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions.
[2024-11-03 14:16:22,371 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 12
[2024-11-03 14:16:22,371 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-03 14:16:22,372 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions.
[2024-11-03 14:16:22,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 14:16:22,372 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions.
[2024-11-03 14:16:22,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-03 14:16:22,373 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-03 14:16:22,373 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 14:16:22,375 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0
[2024-11-03 14:16:22,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 14:16:22,574 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 14:16:22,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 14:16:22,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1651159701, now seen corresponding path program 1 times
[2024-11-03 14:16:22,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 14:16:22,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42731730]
[2024-11-03 14:16:22,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 14:16:22,576 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 14:16:22,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 14:16:22,578 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 14:16:22,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 14:16:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 14:16:22,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-03 14:16:22,689 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 14:16:22,965 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 14:16:22,966 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 14:16:24,136 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 14:16:24,137 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 14:16:24,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42731730]
[2024-11-03 14:16:24,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [42731730] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 14:16:24,137 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 14:16:24,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15
[2024-11-03 14:16:24,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225709460]
[2024-11-03 14:16:24,137 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 14:16:24,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-03 14:16:24,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 14:16:24,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-03 14:16:24,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210
[2024-11-03 14:16:24,142 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 15 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 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 14:16:24,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 14:16:24,591 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions.
[2024-11-03 14:16:24,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-03 14:16:24,593 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14
[2024-11-03 14:16:24,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 14:16:24,594 INFO L225 Difference]: With dead ends: 29
[2024-11-03 14:16:24,594 INFO L226 Difference]: Without dead ends: 20
[2024-11-03 14:16:24,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380
[2024-11-03 14:16:24,596 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 30 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-03 14:16:24,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 134 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-03 14:16:24,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2024-11-03 14:16:24,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20.
[2024-11-03 14:16:24,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 14:16:24,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions.
[2024-11-03 14:16:24,603 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 14
[2024-11-03 14:16:24,603 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-03 14:16:24,604 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions.
[2024-11-03 14:16:24,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 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 14:16:24,604 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions.
[2024-11-03 14:16:24,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2024-11-03 14:16:24,605 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-03 14:16:24,605 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 14:16:24,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 14:16:24,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 14:16:24,806 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 14:16:24,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 14:16:24,807 INFO L85 PathProgramCache]: Analyzing trace with hash 842294842, now seen corresponding path program 1 times
[2024-11-03 14:16:24,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 14:16:24,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754021778]
[2024-11-03 14:16:24,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 14:16:24,807 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 14:16:24,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 14:16:24,809 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 14:16:24,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 14:16:24,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 14:16:24,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-03 14:16:24,871 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 14:16:24,912 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 14:16:24,918 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 34 treesize of output 18
[2024-11-03 14:16:24,971 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 14:16:24,971 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 14:16:25,064 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 14:16:25,065 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 14:16:25,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754021778]
[2024-11-03 14:16:25,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1754021778] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 14:16:25,065 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 14:16:25,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9
[2024-11-03 14:16:25,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369040390]
[2024-11-03 14:16:25,065 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 14:16:25,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-03 14:16:25,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 14:16:25,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-03 14:16:25,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-11-03 14:16:25,067 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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 14:16:25,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 14:16:25,130 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions.
[2024-11-03 14:16:25,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-03 14:16:25,130 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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 18
[2024-11-03 14:16:25,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 14:16:25,130 INFO L225 Difference]: With dead ends: 20
[2024-11-03 14:16:25,131 INFO L226 Difference]: Without dead ends: 0
[2024-11-03 14:16:25,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132
[2024-11-03 14:16:25,132 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-03 14:16:25,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 7 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 14:16:25,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-03 14:16:25,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-03 14:16:25,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 14:16:25,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-03 14:16:25,134 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18
[2024-11-03 14:16:25,134 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-03 14:16:25,134 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-03 14:16:25,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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 14:16:25,134 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-03 14:16:25,134 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-03 14:16:25,138 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-03 14:16:25,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0
[2024-11-03 14:16:25,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 14:16:25,342 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-11-03 14:16:25,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-03 14:16:25,381 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-03 14:16:25,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:16:25 BoogieIcfgContainer
[2024-11-03 14:16:25,398 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-03 14:16:25,399 INFO L158 Benchmark]: Toolchain (without parser) took 4109.10ms. Allocated memory is still 317.7MB. Free memory was 270.1MB in the beginning and 211.9MB in the end (delta: 58.2MB). Peak memory consumption was 58.6MB. Max. memory is 8.0GB.
[2024-11-03 14:16:25,400 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 180.4MB. Free memory is still 132.8MB. There was no memory consumed. Max. memory is 8.0GB.
[2024-11-03 14:16:25,401 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.35ms. Allocated memory is still 317.7MB. Free memory was 269.6MB in the beginning and 256.0MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB.
[2024-11-03 14:16:25,401 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.76ms. Allocated memory is still 317.7MB. Free memory was 256.0MB in the beginning and 254.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2024-11-03 14:16:25,401 INFO L158 Benchmark]: Boogie Preprocessor took 48.62ms. Allocated memory is still 317.7MB. Free memory was 254.3MB in the beginning and 251.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2024-11-03 14:16:25,402 INFO L158 Benchmark]: RCFGBuilder took 428.93ms. Allocated memory is still 317.7MB. Free memory was 251.8MB in the beginning and 237.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB.
[2024-11-03 14:16:25,402 INFO L158 Benchmark]: TraceAbstraction took 3333.57ms. Allocated memory is still 317.7MB. Free memory was 236.5MB in the beginning and 211.9MB in the end (delta: 24.7MB). Peak memory consumption was 25.1MB. Max. memory is 8.0GB.
[2024-11-03 14:16:25,403 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.16ms. Allocated memory is still 180.4MB. Free memory is still 132.8MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 259.35ms. Allocated memory is still 317.7MB. Free memory was 269.6MB in the beginning and 256.0MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 31.76ms. Allocated memory is still 317.7MB. Free memory was 256.0MB in the beginning and 254.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 48.62ms. Allocated memory is still 317.7MB. Free memory was 254.3MB in the beginning and 251.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 428.93ms. Allocated memory is still 317.7MB. Free memory was 251.8MB in the beginning and 237.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB.
* TraceAbstraction took 3333.57ms. Allocated memory is still 317.7MB. Free memory was 236.5MB in the beginning and 211.9MB in the end (delta: 24.7MB). Peak memory consumption was 25.1MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 81]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 169 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 123 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 97 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 46 mSDtfsCounter, 97 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 82 ConstructedInterpolants, 9 QuantifiedInterpolants, 457 SizeOfPredicates, 8 NumberOfNonLiveVariables, 153 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 18]: Loop Invariant
Derived loop invariant: null
- InvariantResult [Line: 48]: Loop Invariant
Derived loop invariant: null
- InvariantResult [Line: 59]: Loop Invariant
Derived loop invariant: null
RESULT: Ultimate proved your program to be correct!
[2024-11-03 14:16:25,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...