/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_1032b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 14:05:03,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 14:05:03,205 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 14:05:03,211 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 14:05:03,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 14:05:03,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 14:05:03,237 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 14:05:03,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 14:05:03,238 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 14:05:03,238 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 14:05:03,239 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 14:05:03,239 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 14:05:03,240 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 14:05:03,241 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 14:05:03,241 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 14:05:03,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 14:05:03,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 14:05:03,241 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 14:05:03,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 14:05:03,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 14:05:03,242 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 14:05:03,245 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 14:05:03,245 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 14:05:03,245 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 14:05:03,246 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 14:05:03,246 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 14:05:03,246 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 14:05:03,246 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 14:05:03,246 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 14:05:03,246 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 14:05:03,247 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 14:05:03,247 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 14:05:03,247 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 14:05:03,247 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 14:05:03,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 14:05:03,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 14:05:03,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 14:05:03,248 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 14:05:03,248 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 14:05:03,248 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 14:05:03,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 14:05:03,249 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 14:05:03,249 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 14:05:03,249 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 14:05:03,249 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 14:05:03,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 14:05:03,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 14:05:03,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 14:05:03,499 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 14:05:03,500 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 14:05:03,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032b.c [2024-11-03 14:05:04,795 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 14:05:04,980 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 14:05:04,981 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1032b.c [2024-11-03 14:05:04,986 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be063b37f/0ca8762323f54218b4e2d74934f9d30e/FLAG0cb276cf0 [2024-11-03 14:05:05,374 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be063b37f/0ca8762323f54218b4e2d74934f9d30e [2024-11-03 14:05:05,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 14:05:05,377 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 14:05:05,377 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 14:05:05,378 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 14:05:05,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 14:05:05,382 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:05:05" (1/1) ... [2024-11-03 14:05:05,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5676edab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:05, skipping insertion in model container [2024-11-03 14:05:05,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:05:05" (1/1) ... [2024-11-03 14:05:05,404 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 14:05:05,577 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_1032b.c[2284,2297] [2024-11-03 14:05:05,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 14:05:05,593 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 14:05:05,619 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_1032b.c[2284,2297] [2024-11-03 14:05:05,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 14:05:05,640 INFO L204 MainTranslator]: Completed translation [2024-11-03 14:05:05,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:05 WrapperNode [2024-11-03 14:05:05,642 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 14:05:05,643 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 14:05:05,643 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 14:05:05,643 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 14:05:05,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:05" (1/1) ... [2024-11-03 14:05:05,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:05" (1/1) ... [2024-11-03 14:05:05,682 INFO L138 Inliner]: procedures = 20, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 110 [2024-11-03 14:05:05,682 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 14:05:05,683 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 14:05:05,683 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 14:05:05,683 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 14:05:05,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:05" (1/1) ... [2024-11-03 14:05:05,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:05" (1/1) ... [2024-11-03 14:05:05,698 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:05" (1/1) ... [2024-11-03 14:05:05,717 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 3, 2, 3]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 2]. [2024-11-03 14:05:05,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:05" (1/1) ... [2024-11-03 14:05:05,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:05" (1/1) ... [2024-11-03 14:05:05,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:05" (1/1) ... [2024-11-03 14:05:05,731 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:05" (1/1) ... [2024-11-03 14:05:05,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:05" (1/1) ... [2024-11-03 14:05:05,734 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:05" (1/1) ... [2024-11-03 14:05:05,737 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 14:05:05,738 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 14:05:05,738 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 14:05:05,738 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 14:05:05,739 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:05" (1/1) ... [2024-11-03 14:05:05,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 14:05:05,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 14:05:05,767 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 14:05:05,769 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 14:05:05,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 14:05:05,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-03 14:05:05,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-03 14:05:05,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-03 14:05:05,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-03 14:05:05,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-03 14:05:05,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-03 14:05:05,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-03 14:05:05,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-03 14:05:05,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 14:05:05,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-03 14:05:05,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-03 14:05:05,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-03 14:05:05,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-03 14:05:05,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-03 14:05:05,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-03 14:05:05,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-03 14:05:05,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-03 14:05:05,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 14:05:05,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 14:05:05,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-03 14:05:05,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-03 14:05:05,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-03 14:05:05,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-03 14:05:05,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-03 14:05:05,863 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 14:05:05,865 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 14:05:06,121 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-03 14:05:06,121 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 14:05:06,136 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 14:05:06,137 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-03 14:05:06,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:05:06 BoogieIcfgContainer [2024-11-03 14:05:06,137 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 14:05:06,141 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 14:05:06,141 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 14:05:06,143 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 14:05:06,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:05:05" (1/3) ... [2024-11-03 14:05:06,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10cced96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:05:06, skipping insertion in model container [2024-11-03 14:05:06,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:05" (2/3) ... [2024-11-03 14:05:06,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10cced96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:05:06, skipping insertion in model container [2024-11-03 14:05:06,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:05:06" (3/3) ... [2024-11-03 14:05:06,145 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032b.c [2024-11-03 14:05:06,156 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 14:05:06,156 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 14:05:06,203 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 14:05:06,208 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;@2fe07447, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 14:05:06,208 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 14:05:06,213 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 29 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 14:05:06,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-03 14:05:06,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 14:05:06,217 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 14:05:06,218 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 14:05:06,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 14:05:06,222 INFO L85 PathProgramCache]: Analyzing trace with hash 2068179301, now seen corresponding path program 1 times [2024-11-03 14:05:06,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 14:05:06,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385820707] [2024-11-03 14:05:06,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 14:05:06,230 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 14:05:06,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:05:06,232 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 14:05:06,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 14:05:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 14:05:06,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 14:05:06,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 14:05:06,301 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 14:05:06,301 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 14:05:06,305 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 14:05:06,306 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 14:05:06,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [385820707] [2024-11-03 14:05:06,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [385820707] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 14:05:06,307 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 14:05:06,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 14:05:06,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584836035] [2024-11-03 14:05:06,310 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 14:05:06,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 14:05:06,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 14:05:06,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 14:05:06,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 14:05:06,331 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 29 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) 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 14:05:06,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 14:05:06,342 INFO L93 Difference]: Finished difference Result 58 states and 88 transitions. [2024-11-03 14:05:06,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 14:05:06,347 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 14:05:06,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 14:05:06,352 INFO L225 Difference]: With dead ends: 58 [2024-11-03 14:05:06,352 INFO L226 Difference]: Without dead ends: 27 [2024-11-03 14:05:06,354 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 14:05:06,358 INFO L432 NwaCegarLoop]: 38 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, 38 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 14:05:06,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 14:05:06,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-03 14:05:06,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-03 14:05:06,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:05:06,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2024-11-03 14:05:06,381 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 11 [2024-11-03 14:05:06,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 14:05:06,381 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2024-11-03 14:05:06,381 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 14:05:06,381 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2024-11-03 14:05:06,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-03 14:05:06,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 14:05:06,382 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 14:05:06,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-03 14:05:06,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:05:06,583 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 14:05:06,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 14:05:06,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1606867070, now seen corresponding path program 1 times [2024-11-03 14:05:06,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 14:05:06,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394474933] [2024-11-03 14:05:06,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 14:05:06,584 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 14:05:06,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:05:06,586 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 14:05:06,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 14:05:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 14:05:06,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-03 14:05:06,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 14:05:06,676 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 14:05:06,676 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 14:05:06,707 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 14:05:06,708 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 14:05:06,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [394474933] [2024-11-03 14:05:06,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [394474933] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 14:05:06,708 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 14:05:06,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2024-11-03 14:05:06,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151484578] [2024-11-03 14:05:06,708 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 14:05:06,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-03 14:05:06,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 14:05:06,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-03 14:05:06,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-03 14:05:06,710 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:05:06,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 14:05:06,785 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2024-11-03 14:05:06,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 14:05:06,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-03 14:05:06,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 14:05:06,786 INFO L225 Difference]: With dead ends: 32 [2024-11-03 14:05:06,786 INFO L226 Difference]: Without dead ends: 29 [2024-11-03 14:05:06,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-03 14:05:06,787 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 12 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 14:05:06,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 96 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 14:05:06,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-03 14:05:06,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-03 14:05:06,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 28 states have internal predecessors, (37), 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 14:05:06,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2024-11-03 14:05:06,791 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 37 transitions. Word has length 12 [2024-11-03 14:05:06,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 14:05:06,792 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 37 transitions. [2024-11-03 14:05:06,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:05:06,792 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2024-11-03 14:05:06,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-03 14:05:06,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 14:05:06,792 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 14:05:06,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 14:05:06,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:05:06,994 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 14:05:06,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 14:05:06,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1251002613, now seen corresponding path program 1 times [2024-11-03 14:05:06,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 14:05:06,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2104583940] [2024-11-03 14:05:06,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 14:05:06,995 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 14:05:06,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:05:06,997 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 14:05:06,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 14:05:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 14:05:07,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-03 14:05:07,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 14:05:07,163 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 14:05:07,163 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 14:05:07,229 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 14:05:07,229 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 14:05:07,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2104583940] [2024-11-03 14:05:07,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2104583940] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 14:05:07,229 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 14:05:07,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2024-11-03 14:05:07,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581107760] [2024-11-03 14:05:07,230 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 14:05:07,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 14:05:07,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 14:05:07,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 14:05:07,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-03 14:05:07,231 INFO L87 Difference]: Start difference. First operand 29 states and 37 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 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 14:05:07,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 14:05:07,341 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2024-11-03 14:05:07,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-03 14:05:07,341 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 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 15 [2024-11-03 14:05:07,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 14:05:07,342 INFO L225 Difference]: With dead ends: 42 [2024-11-03 14:05:07,342 INFO L226 Difference]: Without dead ends: 21 [2024-11-03 14:05:07,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-03 14:05:07,343 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 23 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 14:05:07,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 66 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 14:05:07,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-03 14:05:07,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-03 14:05:07,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 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 14:05:07,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2024-11-03 14:05:07,347 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2024-11-03 14:05:07,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 14:05:07,347 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2024-11-03 14:05:07,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 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 14:05:07,347 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2024-11-03 14:05:07,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-03 14:05:07,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 14:05:07,348 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 14:05:07,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0 [2024-11-03 14:05:07,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:05:07,551 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 14:05:07,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 14:05:07,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1282802547, now seen corresponding path program 1 times [2024-11-03 14:05:07,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 14:05:07,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305084564] [2024-11-03 14:05:07,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 14:05:07,552 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 14:05:07,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:05:07,553 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 14:05:07,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-03 14:05:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 14:05:07,594 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-03 14:05:07,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 14:05:09,134 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|) |c_ULTIMATE.start_round_double_~msw~0#1|)) is different from true [2024-11-03 14:05:09,225 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 14:05:09,225 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 14:05:09,327 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 14:05:09,327 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 14:05:09,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305084564] [2024-11-03 14:05:09,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1305084564] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 14:05:09,328 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 14:05:09,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 12 [2024-11-03 14:05:09,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199360929] [2024-11-03 14:05:09,328 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 14:05:09,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-03 14:05:09,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 14:05:09,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-03 14:05:09,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=80, Unknown=1, NotChecked=18, Total=132 [2024-11-03 14:05:09,330 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:05:09,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 14:05:09,442 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2024-11-03 14:05:09,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 14:05:09,443 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-03 14:05:09,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 14:05:09,443 INFO L225 Difference]: With dead ends: 24 [2024-11-03 14:05:09,443 INFO L226 Difference]: Without dead ends: 21 [2024-11-03 14:05:09,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 4 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=49, Invalid=110, Unknown=1, NotChecked=22, Total=182 [2024-11-03 14:05:09,444 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 14 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 14:05:09,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 56 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 16 Unchecked, 0.0s Time] [2024-11-03 14:05:09,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-03 14:05:09,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-03 14:05:09,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.0) internal successors, (20), 20 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:05:09,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2024-11-03 14:05:09,448 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2024-11-03 14:05:09,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 14:05:09,448 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2024-11-03 14:05:09,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:05:09,448 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2024-11-03 14:05:09,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-03 14:05:09,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 14:05:09,449 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] [2024-11-03 14:05:09,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Ended with exit code 0 [2024-11-03 14:05:09,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:05:09,652 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 14:05:09,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 14:05:09,652 INFO L85 PathProgramCache]: Analyzing trace with hash 218634850, now seen corresponding path program 1 times [2024-11-03 14:05:09,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 14:05:09,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316184125] [2024-11-03 14:05:09,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 14:05:09,653 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 14:05:09,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:05:09,654 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 14:05:09,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-03 14:05:09,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 14:05:09,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-03 14:05:09,724 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 14:05:09,979 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 14:05:09,980 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 14:05:26,641 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 14:05:26,641 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 14:05:26,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316184125] [2024-11-03 14:05:26,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [316184125] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 14:05:26,642 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 14:05:26,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 12] imperfect sequences [] total 19 [2024-11-03 14:05:26,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116280022] [2024-11-03 14:05:26,642 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 14:05:26,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-03 14:05:26,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 14:05:26,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-03 14:05:26,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=291, Unknown=4, NotChecked=0, Total=342 [2024-11-03 14:05:26,643 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 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 14:05:26,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 14:05:26,967 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2024-11-03 14:05:26,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-03 14:05:26,968 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 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 20 [2024-11-03 14:05:26,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 14:05:26,968 INFO L225 Difference]: With dead ends: 21 [2024-11-03 14:05:26,968 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 14:05:26,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=81, Invalid=467, Unknown=4, NotChecked=0, Total=552 [2024-11-03 14:05:26,969 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 17 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 14:05:26,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 93 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 14:05:26,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 14:05:26,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 14:05:26,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:05:26,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 14:05:26,970 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2024-11-03 14:05:26,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 14:05:26,970 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 14:05:26,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 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 14:05:26,970 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 14:05:26,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 14:05:26,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 14:05:26,978 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Ended with exit code 0 [2024-11-03 14:05:27,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:05:27,178 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-03 14:05:27,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 14:05:27,225 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 14:05:27,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:05:27 BoogieIcfgContainer [2024-11-03 14:05:27,231 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 14:05:27,232 INFO L158 Benchmark]: Toolchain (without parser) took 21855.10ms. Allocated memory is still 366.0MB. Free memory was 315.0MB in the beginning and 281.0MB in the end (delta: 34.0MB). Peak memory consumption was 35.3MB. Max. memory is 8.0GB. [2024-11-03 14:05:27,232 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 250.6MB. Free memory was 201.1MB in the beginning and 201.0MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 14:05:27,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.80ms. Allocated memory is still 366.0MB. Free memory was 314.8MB in the beginning and 300.3MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-03 14:05:27,232 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.13ms. Allocated memory is still 366.0MB. Free memory was 300.3MB in the beginning and 298.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 14:05:27,232 INFO L158 Benchmark]: Boogie Preprocessor took 54.33ms. Allocated memory is still 366.0MB. Free memory was 298.5MB in the beginning and 295.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 14:05:27,233 INFO L158 Benchmark]: RCFGBuilder took 399.46ms. Allocated memory is still 366.0MB. Free memory was 295.6MB in the beginning and 329.4MB in the end (delta: -33.8MB). Peak memory consumption was 19.4MB. Max. memory is 8.0GB. [2024-11-03 14:05:27,233 INFO L158 Benchmark]: TraceAbstraction took 21090.77ms. Allocated memory is still 366.0MB. Free memory was 328.9MB in the beginning and 281.0MB in the end (delta: 47.9MB). Peak memory consumption was 48.4MB. Max. memory is 8.0GB. [2024-11-03 14:05:27,234 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 250.6MB. Free memory was 201.1MB in the beginning and 201.0MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 264.80ms. Allocated memory is still 366.0MB. Free memory was 314.8MB in the beginning and 300.3MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.13ms. Allocated memory is still 366.0MB. Free memory was 300.3MB in the beginning and 298.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.33ms. Allocated memory is still 366.0MB. Free memory was 298.5MB in the beginning and 295.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 399.46ms. Allocated memory is still 366.0MB. Free memory was 295.6MB in the beginning and 329.4MB in the end (delta: -33.8MB). Peak memory consumption was 19.4MB. Max. memory is 8.0GB. * TraceAbstraction took 21090.77ms. Allocated memory is still 366.0MB. Free memory was 328.9MB in the beginning and 281.0MB in the end (delta: 47.9MB). Peak memory consumption was 48.4MB. 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: 93]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 349 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 16 IncrementalHoareTripleChecker+Unchecked, 248 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 239 IncrementalHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 101 mSDtfsCounter, 239 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 97 SyntacticMatches, 5 SemanticMatches, 48 ConstructedPredicates, 1 IntricatePredicates, 4 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 18.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 30, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 18.9s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 138 ConstructedInterpolants, 37 QuantifiedInterpolants, 973 SizeOfPredicates, 17 NumberOfNonLiveVariables, 260 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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: 71]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-03 14:05:27,271 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...