/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/hardness-nfm22/hardness_operatoramount_amount10_file-25.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 04:48:31,034 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 04:48:31,119 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 04:48:31,125 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 04:48:31,126 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 04:48:31,153 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 04:48:31,154 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 04:48:31,155 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 04:48:31,156 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 04:48:31,157 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 04:48:31,157 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 04:48:31,158 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 04:48:31,159 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 04:48:31,160 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 04:48:31,160 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 04:48:31,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 04:48:31,161 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 04:48:31,161 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 04:48:31,162 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 04:48:31,162 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 04:48:31,162 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 04:48:31,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 04:48:31,166 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 04:48:31,166 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 04:48:31,166 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 04:48:31,166 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 04:48:31,167 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 04:48:31,167 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 04:48:31,167 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 04:48:31,167 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 04:48:31,168 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 04:48:31,168 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 04:48:31,168 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 04:48:31,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 04:48:31,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 04:48:31,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 04:48:31,169 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 04:48:31,170 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 04:48:31,170 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 04:48:31,170 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 04:48:31,171 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 04:48:31,172 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 04:48:31,172 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 04:48:31,172 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 04:48:31,172 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-03 04:48:31,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 04:48:31,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 04:48:31,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 04:48:31,467 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 04:48:31,468 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 04:48:31,469 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-25.i [2024-11-03 04:48:32,919 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 04:48:33,093 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 04:48:33,093 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-25.i [2024-11-03 04:48:33,100 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9af115b57/1b902dc0a1664ce48e5a14de10aaa731/FLAG56ee61cff [2024-11-03 04:48:33,483 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9af115b57/1b902dc0a1664ce48e5a14de10aaa731 [2024-11-03 04:48:33,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 04:48:33,487 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 04:48:33,488 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 04:48:33,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 04:48:33,494 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 04:48:33,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:48:33" (1/1) ... [2024-11-03 04:48:33,496 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6754ca75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:33, skipping insertion in model container [2024-11-03 04:48:33,496 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:48:33" (1/1) ... [2024-11-03 04:48:33,515 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 04:48:33,668 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-25.i[915,928] [2024-11-03 04:48:33,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 04:48:33,728 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 04:48:33,744 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-25.i[915,928] [2024-11-03 04:48:33,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 04:48:33,774 INFO L204 MainTranslator]: Completed translation [2024-11-03 04:48:33,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:33 WrapperNode [2024-11-03 04:48:33,775 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 04:48:33,776 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 04:48:33,776 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 04:48:33,776 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 04:48:33,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:33" (1/1) ... [2024-11-03 04:48:33,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:33" (1/1) ... [2024-11-03 04:48:33,815 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 65 [2024-11-03 04:48:33,815 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 04:48:33,816 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 04:48:33,816 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 04:48:33,816 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 04:48:33,825 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:33" (1/1) ... [2024-11-03 04:48:33,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:33" (1/1) ... [2024-11-03 04:48:33,828 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:33" (1/1) ... [2024-11-03 04:48:33,839 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-03 04:48:33,839 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:33" (1/1) ... [2024-11-03 04:48:33,839 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:33" (1/1) ... [2024-11-03 04:48:33,847 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:33" (1/1) ... [2024-11-03 04:48:33,856 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:33" (1/1) ... [2024-11-03 04:48:33,857 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:33" (1/1) ... [2024-11-03 04:48:33,859 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:33" (1/1) ... [2024-11-03 04:48:33,862 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 04:48:33,863 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 04:48:33,863 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 04:48:33,863 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 04:48:33,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:33" (1/1) ... [2024-11-03 04:48:33,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 04:48:33,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 04:48:33,904 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 04:48:33,909 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 04:48:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 04:48:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 04:48:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 04:48:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 04:48:33,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 04:48:33,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 04:48:34,022 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 04:48:34,025 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 04:48:34,274 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-03 04:48:34,274 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 04:48:34,291 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 04:48:34,291 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 04:48:34,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:48:34 BoogieIcfgContainer [2024-11-03 04:48:34,292 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 04:48:34,296 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 04:48:34,296 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 04:48:34,299 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 04:48:34,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:48:33" (1/3) ... [2024-11-03 04:48:34,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ae5699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:48:34, skipping insertion in model container [2024-11-03 04:48:34,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:33" (2/3) ... [2024-11-03 04:48:34,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ae5699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:48:34, skipping insertion in model container [2024-11-03 04:48:34,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:48:34" (3/3) ... [2024-11-03 04:48:34,304 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-25.i [2024-11-03 04:48:34,322 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 04:48:34,323 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 04:48:34,382 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 04:48:34,388 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;@222067a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 04:48:34,388 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 04:48:34,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-03 04:48:34,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-03 04:48:34,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:48:34,399 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 04:48:34,400 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:48:34,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:48:34,404 INFO L85 PathProgramCache]: Analyzing trace with hash 941058505, now seen corresponding path program 1 times [2024-11-03 04:48:34,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:48:34,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269969965] [2024-11-03 04:48:34,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:48:34,413 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 04:48:34,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 04:48:34,414 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 04:48:34,416 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 04:48:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:48:34,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 04:48:34,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:48:34,538 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-03 04:48:34,538 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:48:34,591 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-03 04:48:34,593 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:48:34,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269969965] [2024-11-03 04:48:34,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1269969965] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 04:48:34,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 04:48:34,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-03 04:48:34,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036512398] [2024-11-03 04:48:34,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 04:48:34,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 04:48:34,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:48:34,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 04:48:34,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 04:48:34,619 INFO L87 Difference]: Start difference. First operand has 33 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 04:48:34,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:48:34,638 INFO L93 Difference]: Finished difference Result 59 states and 90 transitions. [2024-11-03 04:48:34,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 04:48:34,640 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2024-11-03 04:48:34,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:48:34,646 INFO L225 Difference]: With dead ends: 59 [2024-11-03 04:48:34,646 INFO L226 Difference]: Without dead ends: 29 [2024-11-03 04:48:34,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 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 04:48:34,651 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 04:48:34,652 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 04:48:34,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-03 04:48:34,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-03 04:48:34,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-03 04:48:34,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2024-11-03 04:48:34,682 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 44 [2024-11-03 04:48:34,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:48:34,682 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2024-11-03 04:48:34,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 04:48:34,683 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2024-11-03 04:48:34,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-03 04:48:34,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:48:34,685 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 04:48:34,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-03 04:48:34,885 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 04:48:34,886 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:48:34,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:48:34,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1760285773, now seen corresponding path program 1 times [2024-11-03 04:48:34,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:48:34,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [414962873] [2024-11-03 04:48:34,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:48:34,887 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 04:48:34,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 04:48:34,890 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 04:48:34,891 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 04:48:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:48:35,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-03 04:48:35,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:48:40,061 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-03 04:48:40,061 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:48:42,002 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-03 04:48:42,002 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:48:42,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [414962873] [2024-11-03 04:48:42,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [414962873] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 04:48:42,003 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 04:48:42,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2024-11-03 04:48:42,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430145070] [2024-11-03 04:48:42,003 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 04:48:42,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-03 04:48:42,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:48:42,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-03 04:48:42,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-03 04:48:42,009 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-03 04:48:42,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:48:42,802 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2024-11-03 04:48:42,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-03 04:48:42,806 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) Word has length 44 [2024-11-03 04:48:42,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:48:42,807 INFO L225 Difference]: With dead ends: 45 [2024-11-03 04:48:42,807 INFO L226 Difference]: Without dead ends: 43 [2024-11-03 04:48:42,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2024-11-03 04:48:42,809 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 116 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 04:48:42,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 137 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 04:48:42,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-03 04:48:42,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 36. [2024-11-03 04:48:42,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-03 04:48:42,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2024-11-03 04:48:42,820 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 44 [2024-11-03 04:48:42,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:48:42,820 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2024-11-03 04:48:42,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-03 04:48:42,821 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2024-11-03 04:48:42,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-03 04:48:42,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:48:42,822 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 04:48:42,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-03 04:48:43,024 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 04:48:43,025 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:48:43,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:48:43,025 INFO L85 PathProgramCache]: Analyzing trace with hash -796364099, now seen corresponding path program 1 times [2024-11-03 04:48:43,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:48:43,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1639006977] [2024-11-03 04:48:43,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:48:43,026 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 04:48:43,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 04:48:43,029 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 04:48:43,032 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 04:48:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:48:43,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 04:48:43,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:48:43,097 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-03 04:48:43,097 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:48:43,144 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-03 04:48:43,145 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:48:43,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1639006977] [2024-11-03 04:48:43,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1639006977] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 04:48:43,145 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 04:48:43,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 04:48:43,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859527137] [2024-11-03 04:48:43,146 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 04:48:43,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 04:48:43,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:48:43,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 04:48:43,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 04:48:43,147 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-03 04:48:43,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:48:43,185 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2024-11-03 04:48:43,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 04:48:43,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2024-11-03 04:48:43,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:48:43,187 INFO L225 Difference]: With dead ends: 84 [2024-11-03 04:48:43,187 INFO L226 Difference]: Without dead ends: 51 [2024-11-03 04:48:43,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 04:48:43,189 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 18 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 04:48:43,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 66 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 04:48:43,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-03 04:48:43,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2024-11-03 04:48:43,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 states have internal predecessors, (41), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 04:48:43,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2024-11-03 04:48:43,197 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 46 [2024-11-03 04:48:43,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:48:43,198 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2024-11-03 04:48:43,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-03 04:48:43,198 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2024-11-03 04:48:43,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-03 04:48:43,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:48:43,199 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 04:48:43,202 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 04:48:43,400 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 04:48:43,400 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:48:43,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:48:43,401 INFO L85 PathProgramCache]: Analyzing trace with hash -794517057, now seen corresponding path program 1 times [2024-11-03 04:48:43,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:48:43,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328958410] [2024-11-03 04:48:43,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:48:43,402 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 04:48:43,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 04:48:43,404 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 04:48:43,405 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 04:48:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:48:43,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-03 04:48:43,473 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:48:44,680 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-03 04:48:44,680 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:48:45,949 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-03 04:48:45,949 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:48:45,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328958410] [2024-11-03 04:48:45,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1328958410] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 04:48:45,950 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 04:48:45,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2024-11-03 04:48:45,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507280635] [2024-11-03 04:48:45,950 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 04:48:45,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-03 04:48:45,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:48:45,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-03 04:48:45,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-03 04:48:45,952 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-03 04:48:46,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:48:46,282 INFO L93 Difference]: Finished difference Result 88 states and 104 transitions. [2024-11-03 04:48:46,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-03 04:48:46,283 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 46 [2024-11-03 04:48:46,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:48:46,285 INFO L225 Difference]: With dead ends: 88 [2024-11-03 04:48:46,285 INFO L226 Difference]: Without dead ends: 86 [2024-11-03 04:48:46,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-03 04:48:46,288 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 26 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 04:48:46,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 145 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 04:48:46,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-03 04:48:46,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 80. [2024-11-03 04:48:46,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 59 states have (on average 1.11864406779661) internal successors, (66), 60 states have internal predecessors, (66), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-03 04:48:46,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 94 transitions. [2024-11-03 04:48:46,305 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 94 transitions. Word has length 46 [2024-11-03 04:48:46,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:48:46,305 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 94 transitions. [2024-11-03 04:48:46,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-03 04:48:46,306 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 94 transitions. [2024-11-03 04:48:46,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-03 04:48:46,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:48:46,308 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 04:48:46,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-03 04:48:46,508 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 04:48:46,509 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:48:46,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:48:46,510 INFO L85 PathProgramCache]: Analyzing trace with hash 2037663056, now seen corresponding path program 1 times [2024-11-03 04:48:46,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:48:46,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [88482743] [2024-11-03 04:48:46,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:48:46,510 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 04:48:46,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 04:48:46,511 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 04:48:46,512 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 04:48:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:48:46,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-03 04:48:46,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:48:49,705 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-03 04:48:49,705 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:48:51,301 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-03 04:48:51,301 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:48:51,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [88482743] [2024-11-03 04:48:51,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [88482743] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 04:48:51,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 04:48:51,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-03 04:48:51,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50934015] [2024-11-03 04:48:51,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 04:48:51,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-03 04:48:51,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:48:51,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-03 04:48:51,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-03 04:48:51,304 INFO L87 Difference]: Start difference. First operand 80 states and 94 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-03 04:48:51,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:48:51,844 INFO L93 Difference]: Finished difference Result 99 states and 113 transitions. [2024-11-03 04:48:51,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 04:48:51,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 87 [2024-11-03 04:48:51,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:48:51,846 INFO L225 Difference]: With dead ends: 99 [2024-11-03 04:48:51,846 INFO L226 Difference]: Without dead ends: 97 [2024-11-03 04:48:51,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-11-03 04:48:51,848 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 35 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 04:48:51,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 140 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 04:48:51,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-03 04:48:51,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 80. [2024-11-03 04:48:51,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 59 states have (on average 1.11864406779661) internal successors, (66), 60 states have internal predecessors, (66), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-03 04:48:51,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 94 transitions. [2024-11-03 04:48:51,859 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 94 transitions. Word has length 87 [2024-11-03 04:48:51,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:48:51,859 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 94 transitions. [2024-11-03 04:48:51,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-03 04:48:51,859 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 94 transitions. [2024-11-03 04:48:51,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-03 04:48:51,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:48:51,862 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 04:48:51,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-11-03 04:48:52,062 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 04:48:52,062 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:48:52,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:48:52,063 INFO L85 PathProgramCache]: Analyzing trace with hash 2039510098, now seen corresponding path program 1 times [2024-11-03 04:48:52,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:48:52,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892914859] [2024-11-03 04:48:52,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:48:52,064 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 04:48:52,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 04:48:52,065 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 04:48:52,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-03 04:48:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:48:52,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-03 04:48:52,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:48:55,108 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-03 04:48:55,108 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:48:56,650 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-03 04:48:56,651 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:48:56,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892914859] [2024-11-03 04:48:56,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [892914859] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 04:48:56,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 04:48:56,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-03 04:48:56,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830518252] [2024-11-03 04:48:56,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 04:48:56,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-03 04:48:56,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:48:56,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-03 04:48:56,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-03 04:48:56,653 INFO L87 Difference]: Start difference. First operand 80 states and 94 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-03 04:48:57,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:48:57,098 INFO L93 Difference]: Finished difference Result 94 states and 108 transitions. [2024-11-03 04:48:57,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 04:48:57,099 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 87 [2024-11-03 04:48:57,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:48:57,100 INFO L225 Difference]: With dead ends: 94 [2024-11-03 04:48:57,100 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 04:48:57,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-11-03 04:48:57,101 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 31 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 04:48:57,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 133 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 04:48:57,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 04:48:57,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 04:48:57,102 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 04:48:57,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 04:48:57,103 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 87 [2024-11-03 04:48:57,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:48:57,103 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 04:48:57,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-03 04:48:57,103 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 04:48:57,103 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 04:48:57,106 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 04:48:57,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-11-03 04:48:57,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 04:48:57,310 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-03 04:48:57,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 04:48:59,383 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 04:48:59,394 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-03 04:48:59,395 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-03 04:48:59,395 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-03 04:48:59,395 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-03 04:48:59,396 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-03 04:48:59,396 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-03 04:48:59,400 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-03 04:48:59,400 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-03 04:48:59,401 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-03 04:48:59,401 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-03 04:48:59,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:48:59 BoogieIcfgContainer [2024-11-03 04:48:59,407 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 04:48:59,407 INFO L158 Benchmark]: Toolchain (without parser) took 25920.23ms. Allocated memory was 184.5MB in the beginning and 658.5MB in the end (delta: 474.0MB). Free memory was 148.2MB in the beginning and 624.1MB in the end (delta: -476.0MB). Peak memory consumption was 386.3MB. Max. memory is 8.0GB. [2024-11-03 04:48:59,408 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 184.5MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 04:48:59,409 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.00ms. Allocated memory is still 184.5MB. Free memory was 148.2MB in the beginning and 134.5MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-03 04:48:59,409 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.42ms. Allocated memory is still 184.5MB. Free memory was 134.5MB in the beginning and 132.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 04:48:59,409 INFO L158 Benchmark]: Boogie Preprocessor took 45.93ms. Allocated memory is still 184.5MB. Free memory was 132.8MB in the beginning and 130.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 04:48:59,410 INFO L158 Benchmark]: RCFGBuilder took 429.13ms. Allocated memory is still 184.5MB. Free memory was 130.3MB in the beginning and 118.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-11-03 04:48:59,410 INFO L158 Benchmark]: TraceAbstraction took 25110.74ms. Allocated memory was 184.5MB in the beginning and 658.5MB in the end (delta: 474.0MB). Free memory was 117.5MB in the beginning and 624.1MB in the end (delta: -506.7MB). Peak memory consumption was 355.9MB. Max. memory is 8.0GB. [2024-11-03 04:48:59,411 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 184.5MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 287.00ms. Allocated memory is still 184.5MB. Free memory was 148.2MB in the beginning and 134.5MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.42ms. Allocated memory is still 184.5MB. Free memory was 134.5MB in the beginning and 132.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.93ms. Allocated memory is still 184.5MB. Free memory was 132.8MB in the beginning and 130.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 429.13ms. Allocated memory is still 184.5MB. Free memory was 130.3MB in the beginning and 118.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 25110.74ms. Allocated memory was 184.5MB in the beginning and 658.5MB in the end (delta: 474.0MB). Free memory was 117.5MB in the beginning and 624.1MB in the end (delta: -506.7MB). Peak memory consumption was 355.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.9s, OverallIterations: 6, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 231 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 226 mSDsluCounter, 659 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 447 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 347 IncrementalHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 212 mSDtfsCounter, 347 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 714 GetRequests, 649 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=4, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 33 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 18.8s InterpolantComputationTime, 354 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 696 ConstructedInterpolants, 2 QuantifiedInterpolants, 2173 SizeOfPredicates, 101 NumberOfNonLiveVariables, 581 ConjunctsInSsa, 154 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 1584/1600 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: 67]: Loop Invariant Derived loop invariant: null - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((0 != cond) && ((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_2 == \old(var_1_2))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5)))) RESULT: Ultimate proved your program to be correct! [2024-11-03 04:48:59,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...