/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1271b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 02:48:20,889 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 02:48:20,948 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 02:48:20,952 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 02:48:20,952 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 02:48:20,974 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 02:48:20,975 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 02:48:20,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 02:48:20,977 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 02:48:20,978 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 02:48:20,978 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 02:48:20,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 02:48:20,979 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 02:48:20,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 02:48:20,979 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 02:48:20,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 02:48:20,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 02:48:20,980 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 02:48:20,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 02:48:20,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 02:48:20,981 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 02:48:20,985 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 02:48:20,985 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 02:48:20,985 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 02:48:20,985 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 02:48:20,985 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 02:48:20,985 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 02:48:20,985 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 02:48:20,986 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 02:48:20,986 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 02:48:20,986 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 02:48:20,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 02:48:20,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 02:48:20,987 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 02:48:20,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 02:48:20,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 02:48:20,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 02:48:20,987 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 02:48:20,987 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 02:48:20,987 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 02:48:20,987 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 02:48:20,988 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 02:48:20,988 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 02:48:20,988 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 02:48:20,989 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-03 02:48:21,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 02:48:21,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 02:48:21,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 02:48:21,237 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 02:48:21,237 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 02:48:21,239 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1271b.c [2024-11-03 02:48:22,696 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 02:48:22,863 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 02:48:22,863 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1271b.c [2024-11-03 02:48:22,872 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24ccf8e79/8b0ea19b7e5148128415e3a165cf0995/FLAG19d7e956a [2024-11-03 02:48:22,885 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24ccf8e79/8b0ea19b7e5148128415e3a165cf0995 [2024-11-03 02:48:22,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 02:48:22,888 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 02:48:22,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 02:48:22,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 02:48:22,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 02:48:22,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:48:22" (1/1) ... [2024-11-03 02:48:22,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@549b764d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:48:22, skipping insertion in model container [2024-11-03 02:48:22,895 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:48:22" (1/1) ... [2024-11-03 02:48:22,913 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 02:48:23,120 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_1271b.c[4883,4896] [2024-11-03 02:48:23,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 02:48:23,141 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 02:48:23,190 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_1271b.c[4883,4896] [2024-11-03 02:48:23,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 02:48:23,217 INFO L204 MainTranslator]: Completed translation [2024-11-03 02:48:23,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:48:23 WrapperNode [2024-11-03 02:48:23,218 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 02:48:23,220 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 02:48:23,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 02:48:23,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 02:48:23,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:48:23" (1/1) ... [2024-11-03 02:48:23,240 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:48:23" (1/1) ... [2024-11-03 02:48:23,274 INFO L138 Inliner]: procedures = 22, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 276 [2024-11-03 02:48:23,274 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 02:48:23,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 02:48:23,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 02:48:23,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 02:48:23,283 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:48:23" (1/1) ... [2024-11-03 02:48:23,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:48:23" (1/1) ... [2024-11-03 02:48:23,289 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:48:23" (1/1) ... [2024-11-03 02:48:23,322 INFO L175 MemorySlicer]: Split 34 memory accesses to 17 slices as follows [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]. 6 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 16 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2024-11-03 02:48:23,322 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:48:23" (1/1) ... [2024-11-03 02:48:23,323 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:48:23" (1/1) ... [2024-11-03 02:48:23,349 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:48:23" (1/1) ... [2024-11-03 02:48:23,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:48:23" (1/1) ... [2024-11-03 02:48:23,364 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:48:23" (1/1) ... [2024-11-03 02:48:23,367 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:48:23" (1/1) ... [2024-11-03 02:48:23,373 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 02:48:23,374 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 02:48:23,374 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 02:48:23,374 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 02:48:23,374 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:48:23" (1/1) ... [2024-11-03 02:48:23,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 02:48:23,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 02:48:23,423 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-03 02:48:23,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-03 02:48:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 02:48:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 02:48:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-03 02:48:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-03 02:48:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-03 02:48:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-03 02:48:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-03 02:48:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-03 02:48:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-03 02:48:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-03 02:48:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-03 02:48:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-03 02:48:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-03 02:48:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2024-11-03 02:48:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2024-11-03 02:48:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2024-11-03 02:48:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2024-11-03 02:48:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2024-11-03 02:48:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-03 02:48:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-03 02:48:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-03 02:48:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-03 02:48:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-03 02:48:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-03 02:48:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-03 02:48:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-03 02:48:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-03 02:48:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-03 02:48:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-03 02:48:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-03 02:48:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-03 02:48:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2024-11-03 02:48:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#13 [2024-11-03 02:48:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#14 [2024-11-03 02:48:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#15 [2024-11-03 02:48:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#16 [2024-11-03 02:48:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-03 02:48:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-03 02:48:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-03 02:48:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-03 02:48:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-03 02:48:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-03 02:48:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-03 02:48:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-03 02:48:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-03 02:48:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-03 02:48:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-03 02:48:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-03 02:48:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2024-11-03 02:48:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2024-11-03 02:48:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2024-11-03 02:48:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2024-11-03 02:48:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2024-11-03 02:48:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 02:48:23,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 02:48:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-03 02:48:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-03 02:48:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-03 02:48:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-03 02:48:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-03 02:48:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-03 02:48:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-03 02:48:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-03 02:48:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-03 02:48:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-03 02:48:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-03 02:48:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-03 02:48:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2024-11-03 02:48:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#13 [2024-11-03 02:48:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#14 [2024-11-03 02:48:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#15 [2024-11-03 02:48:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#16 [2024-11-03 02:48:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-03 02:48:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-03 02:48:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-03 02:48:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-03 02:48:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-03 02:48:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-03 02:48:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-03 02:48:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-03 02:48:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-03 02:48:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-03 02:48:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-11-03 02:48:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2024-11-03 02:48:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2024-11-03 02:48:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2024-11-03 02:48:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2024-11-03 02:48:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#15 [2024-11-03 02:48:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#16 [2024-11-03 02:48:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-03 02:48:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-03 02:48:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-03 02:48:23,614 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 02:48:23,616 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 02:48:25,864 INFO L? ?]: Removed 57 outVars from TransFormulas that were not future-live. [2024-11-03 02:48:25,864 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 02:48:25,873 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 02:48:25,873 INFO L316 CfgBuilder]: Removed 34 assume(true) statements. [2024-11-03 02:48:25,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:48:25 BoogieIcfgContainer [2024-11-03 02:48:25,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 02:48:25,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 02:48:25,875 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 02:48:25,877 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 02:48:25,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:48:22" (1/3) ... [2024-11-03 02:48:25,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a002e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:48:25, skipping insertion in model container [2024-11-03 02:48:25,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:48:23" (2/3) ... [2024-11-03 02:48:25,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a002e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:48:25, skipping insertion in model container [2024-11-03 02:48:25,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:48:25" (3/3) ... [2024-11-03 02:48:25,879 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1271b.c [2024-11-03 02:48:25,890 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 02:48:25,890 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 02:48:25,939 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 02:48:25,945 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;@214a7a32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 02:48:25,945 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 02:48:25,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 87 states have (on average 1.6781609195402298) internal successors, (146), 88 states have internal predecessors, (146), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-03 02:48:25,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-03 02:48:25,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 02:48:25,952 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 02:48:25,952 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 02:48:25,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 02:48:25,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1909357408, now seen corresponding path program 1 times [2024-11-03 02:48:25,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 02:48:25,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191149212] [2024-11-03 02:48:25,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 02:48:25,962 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 02:48:25,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 02:48:25,964 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 02:48:25,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-03 02:48:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 02:48:26,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 02:48:26,190 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 02:48:26,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 02:48:26,214 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 02:48:26,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 02:48:26,223 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 02:48:26,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1191149212] [2024-11-03 02:48:26,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1191149212] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 02:48:26,224 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 02:48:26,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 02:48:26,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646102379] [2024-11-03 02:48:26,227 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 02:48:26,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 02:48:26,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 02:48:26,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 02:48:26,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 02:48:26,256 INFO L87 Difference]: Start difference. First operand has 92 states, 87 states have (on average 1.6781609195402298) internal successors, (146), 88 states have internal predecessors, (146), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 02:48:26,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 02:48:26,299 INFO L93 Difference]: Finished difference Result 182 states and 300 transitions. [2024-11-03 02:48:26,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 02:48:26,306 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 02:48:26,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 02:48:26,312 INFO L225 Difference]: With dead ends: 182 [2024-11-03 02:48:26,316 INFO L226 Difference]: Without dead ends: 88 [2024-11-03 02:48:26,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 02:48:26,325 INFO L432 NwaCegarLoop]: 115 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, 115 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 02:48:26,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 02:48:26,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-03 02:48:26,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-03 02:48:26,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.2619047619047619) internal successors, (106), 84 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-03 02:48:26,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 110 transitions. [2024-11-03 02:48:26,356 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 110 transitions. Word has length 18 [2024-11-03 02:48:26,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 02:48:26,356 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 110 transitions. [2024-11-03 02:48:26,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 02:48:26,356 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 110 transitions. [2024-11-03 02:48:26,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-03 02:48:26,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 02:48:26,357 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 02:48:26,362 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-03 02:48:26,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 02:48:26,558 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 02:48:26,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 02:48:26,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1814558905, now seen corresponding path program 1 times [2024-11-03 02:48:26,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 02:48:26,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1653147423] [2024-11-03 02:48:26,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 02:48:26,563 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 02:48:26,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 02:48:26,565 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 02:48:26,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-03 02:48:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 02:48:26,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-03 02:48:26,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 02:48:28,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 02:48:28,142 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 02:48:30,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 02:48:30,783 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 02:48:30,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1653147423] [2024-11-03 02:48:30,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1653147423] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 02:48:30,783 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 02:48:30,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 16 [2024-11-03 02:48:30,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416433058] [2024-11-03 02:48:30,783 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 02:48:30,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-03 02:48:30,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 02:48:30,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-03 02:48:30,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-03 02:48:30,786 INFO L87 Difference]: Start difference. First operand 88 states and 110 transitions. Second operand has 16 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 02:48:33,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 02:48:33,997 INFO L93 Difference]: Finished difference Result 107 states and 134 transitions. [2024-11-03 02:48:33,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-03 02:48:33,999 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 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 23 [2024-11-03 02:48:34,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 02:48:34,000 INFO L225 Difference]: With dead ends: 107 [2024-11-03 02:48:34,000 INFO L226 Difference]: Without dead ends: 38 [2024-11-03 02:48:34,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2024-11-03 02:48:34,002 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 44 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-03 02:48:34,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 162 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-03 02:48:34,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-03 02:48:34,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-03 02:48:34,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.054054054054054) internal successors, (39), 37 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 02:48:34,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2024-11-03 02:48:34,006 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 23 [2024-11-03 02:48:34,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 02:48:34,006 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2024-11-03 02:48:34,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 02:48:34,006 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2024-11-03 02:48:34,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-03 02:48:34,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 02:48:34,007 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 02:48:34,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-03 02:48:34,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 02:48:34,208 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 02:48:34,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 02:48:34,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1642693520, now seen corresponding path program 1 times [2024-11-03 02:48:34,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 02:48:34,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101420579] [2024-11-03 02:48:34,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 02:48:34,209 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 02:48:34,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 02:48:34,210 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 02:48:34,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-03 02:48:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 02:48:34,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-03 02:48:34,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 02:48:34,758 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 02:48:34,763 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 35 treesize of output 19 [2024-11-03 02:48:35,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 02:48:35,055 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 02:48:35,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 02:48:35,572 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 02:48:35,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101420579] [2024-11-03 02:48:35,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1101420579] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 02:48:35,572 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 02:48:35,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2024-11-03 02:48:35,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749271449] [2024-11-03 02:48:35,572 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 02:48:35,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-03 02:48:35,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 02:48:35,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-03 02:48:35,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-03 02:48:35,574 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 02:48:36,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 02:48:36,254 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2024-11-03 02:48:36,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-03 02:48:36,255 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 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 28 [2024-11-03 02:48:36,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 02:48:36,256 INFO L225 Difference]: With dead ends: 44 [2024-11-03 02:48:36,256 INFO L226 Difference]: Without dead ends: 29 [2024-11-03 02:48:36,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2024-11-03 02:48:36,260 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 25 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-03 02:48:36,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 176 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-03 02:48:36,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-03 02:48:36,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-03 02:48:36,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0) internal successors, (28), 28 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 02:48:36,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2024-11-03 02:48:36,268 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 28 [2024-11-03 02:48:36,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 02:48:36,268 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2024-11-03 02:48:36,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 02:48:36,268 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2024-11-03 02:48:36,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-03 02:48:36,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 02:48:36,269 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 02:48:36,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-03 02:48:36,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 02:48:36,470 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 02:48:36,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 02:48:36,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1585435218, now seen corresponding path program 1 times [2024-11-03 02:48:36,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 02:48:36,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [452443740] [2024-11-03 02:48:36,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 02:48:36,471 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 02:48:36,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 02:48:36,475 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 02:48:36,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-03 02:48:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 02:48:36,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-03 02:48:36,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 02:48:38,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 02:48:38,549 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 02:48:40,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 02:48:40,646 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 02:48:40,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [452443740] [2024-11-03 02:48:40,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [452443740] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 02:48:40,646 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 02:48:40,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 8] imperfect sequences [] total 17 [2024-11-03 02:48:40,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451334317] [2024-11-03 02:48:40,647 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 02:48:40,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-03 02:48:40,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 02:48:40,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-03 02:48:40,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-11-03 02:48:40,648 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 02:48:44,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 02:48:44,332 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2024-11-03 02:48:44,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-03 02:48:44,333 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 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 28 [2024-11-03 02:48:44,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 02:48:44,333 INFO L225 Difference]: With dead ends: 29 [2024-11-03 02:48:44,333 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 02:48:44,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2024-11-03 02:48:44,335 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-03 02:48:44,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 127 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-03 02:48:44,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 02:48:44,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 02:48:44,336 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 02:48:44,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 02:48:44,336 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2024-11-03 02:48:44,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 02:48:44,336 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 02:48:44,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 02:48:44,336 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 02:48:44,336 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 02:48:44,338 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 02:48:44,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-03 02:48:44,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 02:48:44,542 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-03 02:48:44,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 02:48:44,834 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 02:48:44,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:48:44 BoogieIcfgContainer [2024-11-03 02:48:44,848 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 02:48:44,849 INFO L158 Benchmark]: Toolchain (without parser) took 21960.21ms. Allocated memory is still 272.6MB. Free memory was 222.4MB in the beginning and 96.6MB in the end (delta: 125.8MB). Peak memory consumption was 127.1MB. Max. memory is 8.0GB. [2024-11-03 02:48:44,849 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 204.5MB. Free memory is still 154.5MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 02:48:44,849 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.84ms. Allocated memory is still 272.6MB. Free memory was 222.2MB in the beginning and 205.1MB in the end (delta: 17.1MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2024-11-03 02:48:44,849 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.99ms. Allocated memory is still 272.6MB. Free memory was 205.1MB in the beginning and 202.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 02:48:44,850 INFO L158 Benchmark]: Boogie Preprocessor took 98.08ms. Allocated memory is still 272.6MB. Free memory was 202.8MB in the beginning and 197.5MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2024-11-03 02:48:44,850 INFO L158 Benchmark]: RCFGBuilder took 2500.06ms. Allocated memory is still 272.6MB. Free memory was 197.5MB in the beginning and 216.7MB in the end (delta: -19.2MB). Peak memory consumption was 20.1MB. Max. memory is 8.0GB. [2024-11-03 02:48:44,850 INFO L158 Benchmark]: TraceAbstraction took 18972.92ms. Allocated memory is still 272.6MB. Free memory was 216.2MB in the beginning and 96.6MB in the end (delta: 119.6MB). Peak memory consumption was 119.6MB. Max. memory is 8.0GB. [2024-11-03 02:48:44,854 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 204.5MB. Free memory is still 154.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 328.84ms. Allocated memory is still 272.6MB. Free memory was 222.2MB in the beginning and 205.1MB in the end (delta: 17.1MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.99ms. Allocated memory is still 272.6MB. Free memory was 205.1MB in the beginning and 202.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 98.08ms. Allocated memory is still 272.6MB. Free memory was 202.8MB in the beginning and 197.5MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 2500.06ms. Allocated memory is still 272.6MB. Free memory was 197.5MB in the beginning and 216.7MB in the end (delta: -19.2MB). Peak memory consumption was 20.1MB. Max. memory is 8.0GB. * TraceAbstraction took 18972.92ms. Allocated memory is still 272.6MB. Free memory was 216.2MB in the beginning and 96.6MB in the end (delta: 119.6MB). Peak memory consumption was 119.6MB. 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: 241]: 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 2 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 580 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 409 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 452 IncrementalHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 171 mSDtfsCounter, 452 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 138 SyntacticMatches, 5 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 4 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 9.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 39, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 8.7s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 186 ConstructedInterpolants, 54 QuantifiedInterpolants, 1627 SizeOfPredicates, 17 NumberOfNonLiveVariables, 387 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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: 109]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 218]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: null - ProcedureContractResult [Line: 16]: Procedure Contract for __ieee754_sqrtf Derived contract for procedure __ieee754_sqrtf. Requires: 0 Ensures: (0 && ((one_sqrt == \old(one_sqrt)) && (tiny_sqrt == \old(tiny_sqrt)))) RESULT: Ultimate proved your program to be correct! [2024-11-03 02:48:44,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...