/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/double_req_bl_0832.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 14:01:44,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 14:01:44,139 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 14:01:44,145 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 14:01:44,146 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 14:01:44,171 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 14:01:44,172 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 14:01:44,174 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 14:01:44,175 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 14:01:44,177 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 14:01:44,178 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 14:01:44,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 14:01:44,178 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 14:01:44,179 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 14:01:44,179 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 14:01:44,179 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 14:01:44,179 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 14:01:44,179 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 14:01:44,180 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 14:01:44,180 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 14:01:44,182 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 14:01:44,182 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 14:01:44,182 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 14:01:44,182 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 14:01:44,182 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 14:01:44,183 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 14:01:44,183 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 14:01:44,183 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 14:01:44,183 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 14:01:44,183 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 14:01:44,184 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 14:01:44,184 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 14:01:44,184 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 14:01:44,184 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 14:01:44,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 14:01:44,184 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 14:01:44,185 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 14:01:44,185 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 14:01:44,185 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 14:01:44,186 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 14:01:44,186 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 14:01:44,186 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 14:01:44,187 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 14:01:44,187 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 14:01:44,187 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 14:01:44,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 14:01:44,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 14:01:44,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 14:01:44,454 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 14:01:44,454 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 14:01:44,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0832.c [2024-11-03 14:01:45,832 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 14:01:45,971 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 14:01:45,971 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0832.c [2024-11-03 14:01:45,977 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c15296927/dfabf7fc5bde415882a8bfb33e7543a5/FLAG38247d0e8 [2024-11-03 14:01:45,992 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c15296927/dfabf7fc5bde415882a8bfb33e7543a5 [2024-11-03 14:01:45,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 14:01:45,994 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 14:01:45,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 14:01:45,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 14:01:46,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 14:01:46,002 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:01:45" (1/1) ... [2024-11-03 14:01:46,003 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ffe7fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:46, skipping insertion in model container [2024-11-03 14:01:46,003 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:01:45" (1/1) ... [2024-11-03 14:01:46,018 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 14:01:46,144 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0832.c[3927,3940] [2024-11-03 14:01:46,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 14:01:46,166 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 14:01:46,210 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0832.c[3927,3940] [2024-11-03 14:01:46,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 14:01:46,236 INFO L204 MainTranslator]: Completed translation [2024-11-03 14:01:46,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:46 WrapperNode [2024-11-03 14:01:46,236 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 14:01:46,237 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 14:01:46,237 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 14:01:46,237 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 14:01:46,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:46" (1/1) ... [2024-11-03 14:01:46,256 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:46" (1/1) ... [2024-11-03 14:01:46,285 INFO L138 Inliner]: procedures = 20, calls = 48, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 186 [2024-11-03 14:01:46,285 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 14:01:46,286 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 14:01:46,286 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 14:01:46,288 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 14:01:46,296 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:46" (1/1) ... [2024-11-03 14:01:46,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:46" (1/1) ... [2024-11-03 14:01:46,301 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:46" (1/1) ... [2024-11-03 14:01:46,323 INFO L175 MemorySlicer]: Split 27 memory accesses to 10 slices as follows [2, 3, 2, 4, 4, 2, 2, 3, 3, 2]. 15 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 2, 0, 2, 2, 0, 0, 0, 0, 0]. The 8 writes are split as follows [0, 0, 1, 0, 0, 1, 1, 2, 2, 1]. [2024-11-03 14:01:46,323 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:46" (1/1) ... [2024-11-03 14:01:46,323 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:46" (1/1) ... [2024-11-03 14:01:46,343 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:46" (1/1) ... [2024-11-03 14:01:46,348 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:46" (1/1) ... [2024-11-03 14:01:46,354 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:46" (1/1) ... [2024-11-03 14:01:46,356 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:46" (1/1) ... [2024-11-03 14:01:46,362 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 14:01:46,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 14:01:46,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 14:01:46,366 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 14:01:46,367 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:46" (1/1) ... [2024-11-03 14:01:46,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 14:01:46,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 14:01:46,406 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 14:01:46,413 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 14:01:46,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 14:01:46,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-03 14:01:46,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-03 14:01:46,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-03 14:01:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-03 14:01:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-11-03 14:01:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-11-03 14:01:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2024-11-03 14:01:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#7 [2024-11-03 14:01:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#8 [2024-11-03 14:01:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#9 [2024-11-03 14:01:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-03 14:01:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-03 14:01:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-03 14:01:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-03 14:01:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-11-03 14:01:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-11-03 14:01:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2024-11-03 14:01:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#7 [2024-11-03 14:01:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#8 [2024-11-03 14:01:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#9 [2024-11-03 14:01:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 14:01:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-03 14:01:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-03 14:01:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-03 14:01:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-03 14:01:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-03 14:01:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-03 14:01:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-03 14:01:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-03 14:01:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-03 14:01:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-03 14:01:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-11-03 14:01:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-11-03 14:01:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-11-03 14:01:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-11-03 14:01:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-11-03 14:01:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2024-11-03 14:01:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2024-11-03 14:01:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#7 [2024-11-03 14:01:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#8 [2024-11-03 14:01:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#9 [2024-11-03 14:01:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-03 14:01:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-03 14:01:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-03 14:01:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-03 14:01:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-03 14:01:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-03 14:01:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-03 14:01:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-03 14:01:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-03 14:01:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-03 14:01:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 14:01:46,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 14:01:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-03 14:01:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-03 14:01:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-03 14:01:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-03 14:01:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-03 14:01:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-03 14:01:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-03 14:01:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-03 14:01:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-03 14:01:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-03 14:01:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-03 14:01:46,567 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 14:01:46,568 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 14:02:05,117 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-11-03 14:02:05,118 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 14:02:05,127 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 14:02:05,128 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-03 14:02:05,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:02:05 BoogieIcfgContainer [2024-11-03 14:02:05,128 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 14:02:05,130 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 14:02:05,130 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 14:02:05,133 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 14:02:05,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:01:45" (1/3) ... [2024-11-03 14:02:05,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16cb26ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:02:05, skipping insertion in model container [2024-11-03 14:02:05,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:46" (2/3) ... [2024-11-03 14:02:05,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16cb26ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:02:05, skipping insertion in model container [2024-11-03 14:02:05,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:02:05" (3/3) ... [2024-11-03 14:02:05,135 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2024-11-03 14:02:05,148 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 14:02:05,148 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 14:02:05,189 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 14:02:05,194 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;@6be80439, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 14:02:05,194 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 14:02:05,197 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 37 states have (on average 1.7027027027027026) internal successors, (63), 38 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:02:05,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-03 14:02:05,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 14:02:05,201 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 14:02:05,202 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 14:02:05,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 14:02:05,205 INFO L85 PathProgramCache]: Analyzing trace with hash 841509721, now seen corresponding path program 1 times [2024-11-03 14:02:05,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 14:02:05,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913740524] [2024-11-03 14:02:05,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 14:02:05,213 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 14:02:05,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:02:05,218 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 14:02:05,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 14:02:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 14:02:05,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 14:02:05,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 14:02:05,320 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 14:02:05,320 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 14:02:05,323 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 14:02:05,323 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 14:02:05,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913740524] [2024-11-03 14:02:05,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1913740524] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 14:02:05,324 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 14:02:05,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 14:02:05,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947307607] [2024-11-03 14:02:05,325 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 14:02:05,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 14:02:05,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 14:02:05,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 14:02:05,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 14:02:05,342 INFO L87 Difference]: Start difference. First operand has 39 states, 37 states have (on average 1.7027027027027026) internal successors, (63), 38 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:02:05,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 14:02:05,355 INFO L93 Difference]: Finished difference Result 75 states and 122 transitions. [2024-11-03 14:02:05,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 14:02:05,356 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-03 14:02:05,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 14:02:05,361 INFO L225 Difference]: With dead ends: 75 [2024-11-03 14:02:05,361 INFO L226 Difference]: Without dead ends: 35 [2024-11-03 14:02:05,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 14:02:05,365 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 14:02:05,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 14:02:05,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-03 14:02:05,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-03 14:02:05,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:02:05,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2024-11-03 14:02:05,385 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 11 [2024-11-03 14:02:05,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 14:02:05,385 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2024-11-03 14:02:05,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:02:05,386 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2024-11-03 14:02:05,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-03 14:02:05,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 14:02:05,386 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 14:02:05,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0 [2024-11-03 14:02:05,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:02:05,589 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 14:02:05,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 14:02:05,589 INFO L85 PathProgramCache]: Analyzing trace with hash 957201089, now seen corresponding path program 1 times [2024-11-03 14:02:05,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 14:02:05,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400883767] [2024-11-03 14:02:05,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 14:02:05,593 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 14:02:05,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:02:05,595 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 14:02:05,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 14:02:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 14:02:05,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-03 14:02:05,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 14:02:07,108 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 14:02:07,109 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 14:02:08,818 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 14:02:08,819 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 14:02:08,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400883767] [2024-11-03 14:02:08,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [400883767] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 14:02:08,820 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 14:02:08,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2024-11-03 14:02:08,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471942178] [2024-11-03 14:02:08,820 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 14:02:08,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 14:02:08,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 14:02:08,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 14:02:08,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-03 14:02:08,822 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 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 14:02:13,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-03 14:02:17,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-03 14:02:21,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-03 14:02:22,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 14:02:28,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 14:02:33,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 14:02:37,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 14:02:41,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 14:02:46,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 14:02:50,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 14:02:54,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 14:02:58,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.92s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 14:03:02,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 14:03:07,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.81s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 14:03:11,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 14:03:16,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 14:03:20,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 14:03:20,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 14:03:20,513 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2024-11-03 14:03:20,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 14:03:20,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-03 14:03:20,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 14:03:20,701 INFO L225 Difference]: With dead ends: 41 [2024-11-03 14:03:20,701 INFO L226 Difference]: Without dead ends: 37 [2024-11-03 14:03:20,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-03 14:03:20,702 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 102 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.7s IncrementalHoareTripleChecker+Time [2024-11-03 14:03:20,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 48 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 16 Unknown, 0 Unchecked, 71.7s Time] [2024-11-03 14:03:20,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-03 14:03:20,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2024-11-03 14:03:20,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:03:20,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2024-11-03 14:03:20,706 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 12 [2024-11-03 14:03:20,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 14:03:20,706 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2024-11-03 14:03:20,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 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 14:03:20,706 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2024-11-03 14:03:20,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-03 14:03:20,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 14:03:20,707 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 14:03:20,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Forceful destruction successful, exit code 0 [2024-11-03 14:03:20,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:03:20,911 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 14:03:20,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 14:03:20,911 INFO L85 PathProgramCache]: Analyzing trace with hash -392344440, now seen corresponding path program 1 times [2024-11-03 14:03:20,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 14:03:20,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625147127] [2024-11-03 14:03:20,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 14:03:20,912 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 14:03:20,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:03:20,913 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 14:03:20,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 14:03:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 14:03:21,022 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-03 14:03:21,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 14:03:22,576 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 14:03:22,576 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 14:03:24,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 14:03:24,317 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 14:03:24,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625147127] [2024-11-03 14:03:24,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1625147127] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 14:03:24,318 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 14:03:24,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2024-11-03 14:03:24,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166440534] [2024-11-03 14:03:24,318 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 14:03:24,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 14:03:24,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 14:03:24,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 14:03:24,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-03 14:03:24,319 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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 14:03:28,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-03 14:03:32,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-03 14:03:36,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []