/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 'cvc5 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 06:11:19,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 06:11:19,457 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 06:11:19,463 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 06:11:19,463 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 06:11:19,493 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 06:11:19,494 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 06:11:19,494 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 06:11:19,495 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 06:11:19,496 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 06:11:19,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 06:11:19,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 06:11:19,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 06:11:19,498 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 06:11:19,498 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 06:11:19,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 06:11:19,499 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 06:11:19,501 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 06:11:19,502 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 06:11:19,503 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 06:11:19,503 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 06:11:19,504 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 06:11:19,504 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 06:11:19,504 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 06:11:19,504 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 06:11:19,505 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 06:11:19,505 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 06:11:19,505 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 06:11:19,506 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 06:11:19,506 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 06:11:19,506 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 06:11:19,506 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 06:11:19,507 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 06:11:19,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 06:11:19,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 06:11:19,507 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 06:11:19,508 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 06:11:19,508 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 06:11:19,508 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 06:11:19,508 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 06:11:19,508 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 06:11:19,509 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 06:11:19,509 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 06:11:19,509 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 06:11:19,509 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-03 06:11:19,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 06:11:19,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 06:11:19,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 06:11:19,798 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 06:11:19,799 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 06:11:19,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032a.c [2024-11-03 06:11:21,249 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 06:11:21,451 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 06:11:21,451 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1032a.c [2024-11-03 06:11:21,458 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbcaf20a4/3acb445555914f76944e98fbfd2b56de/FLAGf344f357a [2024-11-03 06:11:21,473 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbcaf20a4/3acb445555914f76944e98fbfd2b56de [2024-11-03 06:11:21,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 06:11:21,477 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 06:11:21,480 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 06:11:21,480 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 06:11:21,487 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 06:11:21,487 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 06:11:21" (1/1) ... [2024-11-03 06:11:21,488 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12902416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:11:21, skipping insertion in model container [2024-11-03 06:11:21,488 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 06:11:21" (1/1) ... [2024-11-03 06:11:21,517 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 06:11:21,721 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_1032a.c[2282,2295] [2024-11-03 06:11:21,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 06:11:21,744 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 06:11:21,773 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_1032a.c[2282,2295] [2024-11-03 06:11:21,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 06:11:21,796 INFO L204 MainTranslator]: Completed translation [2024-11-03 06:11:21,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:11:21 WrapperNode [2024-11-03 06:11:21,797 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 06:11:21,798 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 06:11:21,798 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 06:11:21,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 06:11:21,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:11:21" (1/1) ... [2024-11-03 06:11:21,815 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:11:21" (1/1) ... [2024-11-03 06:11:21,842 INFO L138 Inliner]: procedures = 20, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 110 [2024-11-03 06:11:21,843 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 06:11:21,844 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 06:11:21,845 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 06:11:21,845 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 06:11:21,856 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:11:21" (1/1) ... [2024-11-03 06:11:21,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:11:21" (1/1) ... [2024-11-03 06:11:21,860 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:11:21" (1/1) ... [2024-11-03 06:11:21,877 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 06:11:21,878 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:11:21" (1/1) ... [2024-11-03 06:11:21,878 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:11:21" (1/1) ... [2024-11-03 06:11:21,891 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:11:21" (1/1) ... [2024-11-03 06:11:21,895 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:11:21" (1/1) ... [2024-11-03 06:11:21,898 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:11:21" (1/1) ... [2024-11-03 06:11:21,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:11:21" (1/1) ... [2024-11-03 06:11:21,913 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 06:11:21,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 06:11:21,914 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 06:11:21,914 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 06:11:21,915 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:11:21" (1/1) ... [2024-11-03 06:11:21,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 06:11:21,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 06:11:21,956 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 06:11:21,964 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 06:11:21,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 06:11:21,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-03 06:11:21,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-03 06:11:21,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-03 06:11:21,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-03 06:11:21,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-03 06:11:21,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-03 06:11:21,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-03 06:11:21,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-03 06:11:21,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 06:11:21,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-03 06:11:21,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-03 06:11:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-03 06:11:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-03 06:11:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-03 06:11:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-03 06:11:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-03 06:11:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-03 06:11:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 06:11:21,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 06:11:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-03 06:11:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-03 06:11:21,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-03 06:11:21,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-03 06:11:21,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-03 06:11:22,141 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 06:11:22,144 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 06:11:22,513 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-03 06:11:22,513 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 06:11:22,533 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 06:11:22,533 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-03 06:11:22,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 06:11:22 BoogieIcfgContainer [2024-11-03 06:11:22,535 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 06:11:22,538 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 06:11:22,538 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 06:11:22,542 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 06:11:22,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 06:11:21" (1/3) ... [2024-11-03 06:11:22,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdb799a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 06:11:22, skipping insertion in model container [2024-11-03 06:11:22,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:11:21" (2/3) ... [2024-11-03 06:11:22,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdb799a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 06:11:22, skipping insertion in model container [2024-11-03 06:11:22,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 06:11:22" (3/3) ... [2024-11-03 06:11:22,546 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032a.c [2024-11-03 06:11:22,604 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 06:11:22,605 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 06:11:22,679 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 06:11:22,687 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;@77474a57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 06:11:22,688 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 06:11:22,693 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 06:11:22,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-03 06:11:22,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 06:11:22,700 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 06:11:22,701 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 06:11:22,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 06:11:22,707 INFO L85 PathProgramCache]: Analyzing trace with hash 2068179301, now seen corresponding path program 1 times [2024-11-03 06:11:22,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 06:11:22,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949697855] [2024-11-03 06:11:22,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 06:11:22,719 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 06:11:22,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 06:11:22,723 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 06:11:22,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-03 06:11:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 06:11:22,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 06:11:22,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 06:11:22,872 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 06:11:22,873 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 06:11:22,879 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 06:11:22,881 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 06:11:22,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949697855] [2024-11-03 06:11:22,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1949697855] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 06:11:22,882 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 06:11:22,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 06:11:22,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034069691] [2024-11-03 06:11:22,886 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 06:11:22,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 06:11:22,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 06:11:22,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 06:11:22,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 06:11:22,921 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 06:11:22,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 06:11:22,937 INFO L93 Difference]: Finished difference Result 58 states and 88 transitions. [2024-11-03 06:11:22,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 06:11:22,940 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 06:11:22,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 06:11:22,947 INFO L225 Difference]: With dead ends: 58 [2024-11-03 06:11:22,948 INFO L226 Difference]: Without dead ends: 27 [2024-11-03 06:11:22,950 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 06:11:22,954 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 06:11:22,955 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 06:11:22,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-03 06:11:22,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-03 06:11:22,982 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 06:11:22,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2024-11-03 06:11:22,985 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 11 [2024-11-03 06:11:22,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 06:11:22,985 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2024-11-03 06:11:22,985 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 06:11:22,986 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2024-11-03 06:11:22,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-03 06:11:22,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 06:11:22,987 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 06:11:22,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-03 06:11:23,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 06:11:23,189 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 06:11:23,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 06:11:23,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1606867070, now seen corresponding path program 1 times [2024-11-03 06:11:23,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 06:11:23,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122926287] [2024-11-03 06:11:23,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 06:11:23,191 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 06:11:23,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 06:11:23,195 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 06:11:23,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-03 06:11:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 06:11:23,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-03 06:11:23,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 06:11:25,051 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 06:11:25,052 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 06:11:25,226 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 06:11:25,227 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 06:11:25,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122926287] [2024-11-03 06:11:25,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2122926287] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 06:11:25,233 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 06:11:25,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2024-11-03 06:11:25,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974876979] [2024-11-03 06:11:25,234 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 06:11:25,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-03 06:11:25,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 06:11:25,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-03 06:11:25,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=49, Unknown=1, NotChecked=0, Total=72 [2024-11-03 06:11:25,237 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 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 06:11:26,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 06:11:29,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 06:11:30,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 06:11:32,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 06:11:32,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 06:11:32,559 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2024-11-03 06:11:32,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 06:11:32,561 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 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 06:11:32,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 06:11:32,562 INFO L225 Difference]: With dead ends: 33 [2024-11-03 06:11:32,562 INFO L226 Difference]: Without dead ends: 30 [2024-11-03 06:11:32,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=22, Invalid=49, Unknown=1, NotChecked=0, Total=72 [2024-11-03 06:11:32,564 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 31 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-03 06:11:32,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 81 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 4 Unknown, 0 Unchecked, 7.3s Time] [2024-11-03 06:11:32,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-03 06:11:32,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2024-11-03 06:11:32,575 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 06:11:32,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2024-11-03 06:11:32,576 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 37 transitions. Word has length 12 [2024-11-03 06:11:32,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 06:11:32,578 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 37 transitions. [2024-11-03 06:11:32,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 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 06:11:32,578 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2024-11-03 06:11:32,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-03 06:11:32,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 06:11:32,579 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 06:11:32,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-03 06:11:32,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 06:11:32,780 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 06:11:32,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 06:11:32,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1251002613, now seen corresponding path program 1 times [2024-11-03 06:11:32,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 06:11:32,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [82375468] [2024-11-03 06:11:32,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 06:11:32,782 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 06:11:32,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 06:11:32,785 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 06:11:32,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-03 06:11:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 06:11:32,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-03 06:11:32,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 06:11:33,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 06:11:33,065 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 06:11:33,234 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 06:11:33,235 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 06:11:33,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [82375468] [2024-11-03 06:11:33,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [82375468] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 06:11:33,235 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 06:11:33,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 9 [2024-11-03 06:11:33,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199553938] [2024-11-03 06:11:33,236 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 06:11:33,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-03 06:11:33,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 06:11:33,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-03 06:11:33,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-03 06:11:33,238 INFO L87 Difference]: Start difference. First operand 29 states and 37 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 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 06:11:33,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 06:11:33,407 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2024-11-03 06:11:33,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-03 06:11:33,408 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 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 06:11:33,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 06:11:33,408 INFO L225 Difference]: With dead ends: 42 [2024-11-03 06:11:33,408 INFO L226 Difference]: Without dead ends: 21 [2024-11-03 06:11:33,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-03 06:11:33,410 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 30 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 06:11:33,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 57 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 06:11:33,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-03 06:11:33,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-03 06:11:33,414 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 06:11:33,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2024-11-03 06:11:33,415 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2024-11-03 06:11:33,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 06:11:33,415 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2024-11-03 06:11:33,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 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 06:11:33,415 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2024-11-03 06:11:33,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-03 06:11:33,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 06:11:33,416 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 06:11:33,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-03 06:11:33,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 06:11:33,618 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 06:11:33,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 06:11:33,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1282802547, now seen corresponding path program 1 times [2024-11-03 06:11:33,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 06:11:33,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1818720206] [2024-11-03 06:11:33,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 06:11:33,619 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 06:11:33,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 06:11:33,623 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 06:11:33,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-03 06:11:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 06:11:33,716 WARN L253 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-03 06:11:33,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 06:11:33,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-03 06:11:33,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-03 06:11:34,099 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 06:11:34,100 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 06:11:34,218 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 06:11:34,219 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 06:11:34,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1818720206] [2024-11-03 06:11:34,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1818720206] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 06:11:34,219 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 06:11:34,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 12 [2024-11-03 06:11:34,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284565242] [2024-11-03 06:11:34,220 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 06:11:34,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-03 06:11:34,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 06:11:34,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-03 06:11:34,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-03 06:11:34,222 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 06:11:36,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-03 06:11:39,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-03 06:11:39,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 06:11:39,562 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2024-11-03 06:11:39,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 06:11:39,562 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 06:11:39,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 06:11:39,563 INFO L225 Difference]: With dead ends: 24 [2024-11-03 06:11:39,563 INFO L226 Difference]: Without dead ends: 21 [2024-11-03 06:11:39,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-03 06:11:39,564 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 13 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-03 06:11:39,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 59 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2024-11-03 06:11:39,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-03 06:11:39,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-03 06:11:39,569 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 06:11:39,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2024-11-03 06:11:39,570 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2024-11-03 06:11:39,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 06:11:39,570 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2024-11-03 06:11:39,571 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 06:11:39,571 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2024-11-03 06:11:39,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-03 06:11:39,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 06:11:39,571 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 06:11:39,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-03 06:11:39,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 06:11:39,776 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 06:11:39,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 06:11:39,777 INFO L85 PathProgramCache]: Analyzing trace with hash 218634850, now seen corresponding path program 1 times [2024-11-03 06:11:39,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 06:11:39,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1644665152] [2024-11-03 06:11:39,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 06:11:39,777 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 06:11:39,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 06:11:39,779 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 06:11:39,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-03 06:11:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 06:11:39,878 WARN L253 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-03 06:11:39,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 06:11:39,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-03 06:11:39,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-03 06:11:40,195 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-03 06:11:40,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2024-11-03 06:11:40,236 INFO L349 Elim1Store]: treesize reduction 15, result has 31.8 percent of original size [2024-11-03 06:11:40,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 16 [2024-11-03 06:11:40,782 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 06:11:40,782 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 06:12:02,217 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 06:12:02,218 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 06:12:02,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1644665152] [2024-11-03 06:12:02,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1644665152] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 06:12:02,218 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 06:12:02,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 14] imperfect sequences [] total 23 [2024-11-03 06:12:02,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390279232] [2024-11-03 06:12:02,219 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 06:12:02,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-03 06:12:02,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 06:12:02,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-03 06:12:02,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=434, Unknown=5, NotChecked=0, Total=506 [2024-11-03 06:12:02,221 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand has 23 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 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 06:12:03,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 06:12:03,412 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2024-11-03 06:12:03,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-03 06:12:03,415 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 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 06:12:03,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 06:12:03,415 INFO L225 Difference]: With dead ends: 21 [2024-11-03 06:12:03,415 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 06:12:03,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 22.4s TimeCoverageRelationStatistics Valid=119, Invalid=688, Unknown=5, NotChecked=0, Total=812 [2024-11-03 06:12:03,418 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 23 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-03 06:12:03,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 62 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-03 06:12:03,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 06:12:03,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 06:12:03,421 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 06:12:03,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 06:12:03,422 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2024-11-03 06:12:03,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 06:12:03,422 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 06:12:03,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 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 06:12:03,422 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 06:12:03,422 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 06:12:03,425 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 06:12:03,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-03 06:12:03,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 06:12:03,630 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-03 06:12:03,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 06:12:03,735 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 06:12:03,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 06:12:03 BoogieIcfgContainer [2024-11-03 06:12:03,744 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 06:12:03,745 INFO L158 Benchmark]: Toolchain (without parser) took 42267.90ms. Allocated memory was 198.2MB in the beginning and 336.6MB in the end (delta: 138.4MB). Free memory was 149.4MB in the beginning and 128.4MB in the end (delta: 21.0MB). Peak memory consumption was 160.3MB. Max. memory is 8.0GB. [2024-11-03 06:12:03,745 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 198.2MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 06:12:03,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.27ms. Allocated memory is still 198.2MB. Free memory was 149.1MB in the beginning and 135.1MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-03 06:12:03,746 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.97ms. Allocated memory is still 198.2MB. Free memory was 135.1MB in the beginning and 133.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 06:12:03,746 INFO L158 Benchmark]: Boogie Preprocessor took 68.54ms. Allocated memory is still 198.2MB. Free memory was 133.4MB in the beginning and 130.6MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-03 06:12:03,746 INFO L158 Benchmark]: RCFGBuilder took 621.03ms. Allocated memory is still 198.2MB. Free memory was 130.2MB in the beginning and 114.2MB in the end (delta: 16.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2024-11-03 06:12:03,746 INFO L158 Benchmark]: TraceAbstraction took 41206.73ms. Allocated memory was 198.2MB in the beginning and 336.6MB in the end (delta: 138.4MB). Free memory was 113.5MB in the beginning and 128.4MB in the end (delta: -14.9MB). Peak memory consumption was 124.7MB. Max. memory is 8.0GB. [2024-11-03 06:12:03,748 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 198.2MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 317.27ms. Allocated memory is still 198.2MB. Free memory was 149.1MB in the beginning and 135.1MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.97ms. Allocated memory is still 198.2MB. Free memory was 135.1MB in the beginning and 133.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 68.54ms. Allocated memory is still 198.2MB. Free memory was 133.4MB in the beginning and 130.6MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 621.03ms. Allocated memory is still 198.2MB. Free memory was 130.2MB in the beginning and 114.2MB in the end (delta: 16.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 41206.73ms. Allocated memory was 198.2MB in the beginning and 336.6MB in the end (delta: 138.4MB). Free memory was 113.5MB in the beginning and 128.4MB in the end (delta: -14.9MB). Peak memory consumption was 124.7MB. 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: 41.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 13.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 97 mSDsluCounter, 297 SdHoareTripleChecker+Invalid, 13.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 203 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 264 IncrementalHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 94 mSDtfsCounter, 264 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 92 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 24.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 32, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 25.2s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 138 ConstructedInterpolants, 47 QuantifiedInterpolants, 1586 SizeOfPredicates, 39 NumberOfNonLiveVariables, 260 ConjunctsInSsa, 115 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 06:12:03,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...