/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/float_req_bl_0920b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 06:22:11,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 06:22:11,125 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 06:22:11,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 06:22:11,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 06:22:11,169 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 06:22:11,170 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 06:22:11,170 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 06:22:11,171 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 06:22:11,171 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 06:22:11,171 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 06:22:11,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 06:22:11,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 06:22:11,173 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 06:22:11,173 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 06:22:11,173 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 06:22:11,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 06:22:11,174 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 06:22:11,174 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 06:22:11,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 06:22:11,175 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 06:22:11,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 06:22:11,176 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 06:22:11,176 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 06:22:11,176 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 06:22:11,177 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 06:22:11,177 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 06:22:11,177 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 06:22:11,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 06:22:11,178 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 06:22:11,178 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 06:22:11,178 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 06:22:11,179 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 06:22:11,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 06:22:11,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 06:22:11,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 06:22:11,180 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 06:22:11,180 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 06:22:11,180 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 06:22:11,180 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 06:22:11,181 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 06:22:11,181 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 06:22:11,181 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 06:22:11,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 06:22:11,182 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-03 06:22:11,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 06:22:11,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 06:22:11,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 06:22:11,494 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 06:22:11,495 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 06:22:11,496 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0920b.c [2024-11-03 06:22:13,019 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 06:22:13,230 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 06:22:13,231 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0920b.c [2024-11-03 06:22:13,238 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4b0948b0/5c019485fa7245c5b2121a7cb852f0f8/FLAG21286fc2e [2024-11-03 06:22:13,253 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4b0948b0/5c019485fa7245c5b2121a7cb852f0f8 [2024-11-03 06:22:13,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 06:22:13,257 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 06:22:13,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 06:22:13,258 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 06:22:13,263 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 06:22:13,264 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 06:22:13" (1/1) ... [2024-11-03 06:22:13,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f210d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:22:13, skipping insertion in model container [2024-11-03 06:22:13,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 06:22:13" (1/1) ... [2024-11-03 06:22:13,287 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 06:22:13,528 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0920b.c[3250,3263] [2024-11-03 06:22:13,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 06:22:13,547 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 06:22:13,582 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0920b.c[3250,3263] [2024-11-03 06:22:13,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 06:22:13,605 INFO L204 MainTranslator]: Completed translation [2024-11-03 06:22:13,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:22:13 WrapperNode [2024-11-03 06:22:13,606 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 06:22:13,607 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 06:22:13,607 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 06:22:13,607 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 06:22:13,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:22:13" (1/1) ... [2024-11-03 06:22:13,626 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:22:13" (1/1) ... [2024-11-03 06:22:13,654 INFO L138 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 142 [2024-11-03 06:22:13,655 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 06:22:13,656 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 06:22:13,656 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 06:22:13,656 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 06:22:13,668 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:22:13" (1/1) ... [2024-11-03 06:22:13,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:22:13" (1/1) ... [2024-11-03 06:22:13,672 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:22:13" (1/1) ... [2024-11-03 06:22:13,690 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-11-03 06:22:13,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:22:13" (1/1) ... [2024-11-03 06:22:13,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:22:13" (1/1) ... [2024-11-03 06:22:13,711 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:22:13" (1/1) ... [2024-11-03 06:22:13,719 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:22:13" (1/1) ... [2024-11-03 06:22:13,727 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:22:13" (1/1) ... [2024-11-03 06:22:13,734 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:22:13" (1/1) ... [2024-11-03 06:22:13,739 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 06:22:13,740 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 06:22:13,740 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 06:22:13,740 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 06:22:13,742 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:22:13" (1/1) ... [2024-11-03 06:22:13,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 06:22:13,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 06:22:13,777 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 06:22:13,796 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 06:22:13,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 06:22:13,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 06:22:13,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-03 06:22:13,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-03 06:22:13,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-03 06:22:13,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-03 06:22:13,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-03 06:22:13,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-03 06:22:13,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-03 06:22:13,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-03 06:22:13,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-03 06:22:13,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-03 06:22:13,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-03 06:22:13,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-03 06:22:13,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 06:22:13,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 06:22:13,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-03 06:22:13,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-03 06:22:13,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-03 06:22:13,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-03 06:22:13,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-03 06:22:13,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-03 06:22:13,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-03 06:22:13,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-03 06:22:13,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-03 06:22:13,974 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 06:22:13,976 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 06:22:41,765 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-03 06:22:41,766 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 06:22:41,776 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 06:22:41,776 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-03 06:22:41,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 06:22:41 BoogieIcfgContainer [2024-11-03 06:22:41,777 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 06:22:41,786 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 06:22:41,786 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 06:22:41,789 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 06:22:41,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 06:22:13" (1/3) ... [2024-11-03 06:22:41,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fcbe78b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 06:22:41, skipping insertion in model container [2024-11-03 06:22:41,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:22:13" (2/3) ... [2024-11-03 06:22:41,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fcbe78b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 06:22:41, skipping insertion in model container [2024-11-03 06:22:41,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 06:22:41" (3/3) ... [2024-11-03 06:22:41,792 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b.c [2024-11-03 06:22:41,804 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 06:22:41,804 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 06:22:41,856 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 06:22:41,862 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;@1b8a814e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 06:22:41,862 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 06:22:41,867 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 29 states have internal predecessors, (47), 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 06:22:41,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-03 06:22:41,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 06:22:41,874 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 06:22:41,874 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 06:22:41,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 06:22:41,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2024-11-03 06:22:41,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 06:22:41,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730171179] [2024-11-03 06:22:41,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 06:22:41,891 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 06:22:41,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 06:22:41,893 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 06:22:41,895 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 06:22:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 06:22:41,997 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 06:22:42,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 06:22:42,021 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 06:22:42,021 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 06:22:42,025 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 06:22:42,028 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 06:22:42,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730171179] [2024-11-03 06:22:42,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [730171179] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 06:22:42,029 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 06:22:42,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 06:22:42,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823615663] [2024-11-03 06:22:42,033 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 06:22:42,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 06:22:42,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 06:22:42,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 06:22:42,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 06:22:42,070 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 29 states have internal predecessors, (47), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 06:22:42,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 06:22:42,084 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2024-11-03 06:22:42,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 06:22:42,087 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2024-11-03 06:22:42,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 06:22:42,096 INFO L225 Difference]: With dead ends: 58 [2024-11-03 06:22:42,097 INFO L226 Difference]: Without dead ends: 27 [2024-11-03 06:22:42,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 06:22:42,106 INFO L432 NwaCegarLoop]: 40 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, 40 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 06:22:42,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 06:22:42,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-03 06:22:42,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-03 06:22:42,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 26 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 06:22:42,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2024-11-03 06:22:42,142 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2024-11-03 06:22:42,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 06:22:42,142 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2024-11-03 06:22:42,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 06:22:42,143 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2024-11-03 06:22:42,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-03 06:22:42,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 06:22:42,143 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 06:22:42,147 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 06:22:42,344 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 06:22:42,345 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 06:22:42,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 06:22:42,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2024-11-03 06:22:42,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 06:22:42,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115713803] [2024-11-03 06:22:42,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 06:22:42,347 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 06:22:42,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 06:22:42,350 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 06:22:42,351 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 06:22:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 06:22:42,462 WARN L253 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-03 06:22:42,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 06:22:43,825 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 06:22:43,826 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 06:22:44,403 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 06:22:44,404 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 06:22:44,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115713803] [2024-11-03 06:22:44,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [115713803] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 06:22:44,404 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 06:22:44,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2024-11-03 06:22:44,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349319356] [2024-11-03 06:22:44,405 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 06:22:44,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-03 06:22:44,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 06:22:44,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-03 06:22:44,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-03 06:22:44,408 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 06:22:45,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 06:22:45,081 INFO L93 Difference]: Finished difference Result 32 states and 41 transitions. [2024-11-03 06:22:45,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 06:22:45,083 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 10 [2024-11-03 06:22:45,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 06:22:45,083 INFO L225 Difference]: With dead ends: 32 [2024-11-03 06:22:45,083 INFO L226 Difference]: Without dead ends: 12 [2024-11-03 06:22:45,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-03 06:22:45,085 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 14 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-03 06:22:45,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 18 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-03 06:22:45,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-03 06:22:45,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-03 06:22:45,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 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 06:22:45,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2024-11-03 06:22:45,089 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2024-11-03 06:22:45,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 06:22:45,089 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2024-11-03 06:22:45,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 06:22:45,091 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2024-11-03 06:22:45,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-03 06:22:45,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 06:22:45,092 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 06:22:45,098 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 06:22:45,293 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 06:22:45,294 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 06:22:45,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 06:22:45,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1245975282, now seen corresponding path program 1 times [2024-11-03 06:22:45,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 06:22:45,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823910075] [2024-11-03 06:22:45,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 06:22:45,295 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 06:22:45,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 06:22:45,297 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 06:22:45,299 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 06:22:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 06:22:45,396 WARN L253 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-03 06:22:45,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 06:22:46,853 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 06:22:46,853 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 06:23:05,586 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 06:23:05,587 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 06:23:05,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [823910075] [2024-11-03 06:23:05,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [823910075] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 06:23:05,587 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 06:23:05,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2024-11-03 06:23:05,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256867581] [2024-11-03 06:23:05,588 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 06:23:05,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 06:23:05,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 06:23:05,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 06:23:05,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-03 06:23:05,590 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 06:23:06,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 06:23:06,704 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2024-11-03 06:23:06,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-03 06:23:06,705 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 11 [2024-11-03 06:23:06,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 06:23:06,705 INFO L225 Difference]: With dead ends: 12 [2024-11-03 06:23:06,705 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 06:23:06,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-03 06:23:06,707 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-03 06:23:06,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 20 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-03 06:23:06,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 06:23:06,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 06:23:06,709 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 06:23:06,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 06:23:06,710 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2024-11-03 06:23:06,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 06:23:06,710 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 06:23:06,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 06:23:06,710 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 06:23:06,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 06:23:06,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 06:23:06,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-03 06:23:06,913 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 06:23:06,917 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-03 06:23:06,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 06:23:07,137 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 06:23:07,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 06:23:07 BoogieIcfgContainer [2024-11-03 06:23:07,155 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 06:23:07,156 INFO L158 Benchmark]: Toolchain (without parser) took 53899.23ms. Allocated memory is still 293.6MB. Free memory was 242.0MB in the beginning and 168.8MB in the end (delta: 73.2MB). Peak memory consumption was 73.9MB. Max. memory is 8.0GB. [2024-11-03 06:23:07,156 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 208.7MB. Free memory is still 158.4MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 06:23:07,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.30ms. Allocated memory is still 293.6MB. Free memory was 241.8MB in the beginning and 226.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-03 06:23:07,157 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.76ms. Allocated memory is still 293.6MB. Free memory was 226.5MB in the beginning and 224.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 06:23:07,157 INFO L158 Benchmark]: Boogie Preprocessor took 83.43ms. Allocated memory is still 293.6MB. Free memory was 224.4MB in the beginning and 221.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-03 06:23:07,157 INFO L158 Benchmark]: RCFGBuilder took 28036.78ms. Allocated memory is still 293.6MB. Free memory was 221.0MB in the beginning and 248.5MB in the end (delta: -27.5MB). Peak memory consumption was 16.2MB. Max. memory is 8.0GB. [2024-11-03 06:23:07,158 INFO L158 Benchmark]: TraceAbstraction took 25369.75ms. Allocated memory is still 293.6MB. Free memory was 247.5MB in the beginning and 168.8MB in the end (delta: 78.6MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. [2024-11-03 06:23:07,159 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 208.7MB. Free memory is still 158.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 348.30ms. Allocated memory is still 293.6MB. Free memory was 241.8MB in the beginning and 226.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.76ms. Allocated memory is still 293.6MB. Free memory was 226.5MB in the beginning and 224.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 83.43ms. Allocated memory is still 293.6MB. Free memory was 224.4MB in the beginning and 221.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 28036.78ms. Allocated memory is still 293.6MB. Free memory was 221.0MB in the beginning and 248.5MB in the end (delta: -27.5MB). Peak memory consumption was 16.2MB. Max. memory is 8.0GB. * TraceAbstraction took 25369.75ms. Allocated memory is still 293.6MB. Free memory was 247.5MB in the beginning and 168.8MB in the end (delta: 78.6MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 127]: 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: 25.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 51 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 12.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 22.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 1 QuantifiedInterpolants, 502 SizeOfPredicates, 35 NumberOfNonLiveVariables, 139 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-03 06:23:07,284 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...