/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 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-44.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-02 21:46:16,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 21:46:17,022 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-02 21:46:17,026 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 21:46:17,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 21:46:17,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 21:46:17,049 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 21:46:17,050 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 21:46:17,050 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-02 21:46:17,052 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-02 21:46:17,052 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 21:46:17,052 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 21:46:17,053 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 21:46:17,053 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 21:46:17,053 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 21:46:17,053 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 21:46:17,053 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 21:46:17,054 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 21:46:17,054 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 21:46:17,054 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 21:46:17,054 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 21:46:17,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 21:46:17,056 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 21:46:17,056 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 21:46:17,056 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 21:46:17,056 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 21:46:17,057 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 21:46:17,057 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 21:46:17,057 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 21:46:17,057 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 21:46:17,057 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 21:46:17,057 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 21:46:17,057 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 21:46:17,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 21:46:17,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 21:46:17,058 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 21:46:17,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 21:46:17,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 21:46:17,058 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-02 21:46:17,058 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 21:46:17,058 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 21:46:17,059 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-02 21:46:17,059 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-02 21:46:17,059 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 21:46:17,060 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:46:17,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 21:46:17,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 21:46:17,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 21:46:17,238 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 21:46:17,238 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 21:46:17,239 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-44.i [2024-11-02 21:46:18,467 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 21:46:18,624 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 21:46:18,624 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-44.i [2024-11-02 21:46:18,636 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a91e1cd5/f12a2bc1b6304a1f8d4363aa2c7e8b46/FLAG68e9c9954 [2024-11-02 21:46:19,047 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a91e1cd5/f12a2bc1b6304a1f8d4363aa2c7e8b46 [2024-11-02 21:46:19,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 21:46:19,050 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-02 21:46:19,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 21:46:19,051 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 21:46:19,057 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 21:46:19,057 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:46:19" (1/1) ... [2024-11-02 21:46:19,058 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56616615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:46:19, skipping insertion in model container [2024-11-02 21:46:19,058 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:46:19" (1/1) ... [2024-11-02 21:46:19,075 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 21:46:19,197 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-44.i[915,928] [2024-11-02 21:46:19,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 21:46:19,224 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 21:46:19,232 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-44.i[915,928] [2024-11-02 21:46:19,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 21:46:19,255 INFO L204 MainTranslator]: Completed translation [2024-11-02 21:46:19,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:46:19 WrapperNode [2024-11-02 21:46:19,256 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 21:46:19,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 21:46:19,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 21:46:19,257 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 21:46:19,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:46:19" (1/1) ... [2024-11-02 21:46:19,268 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:46:19" (1/1) ... [2024-11-02 21:46:19,280 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 82 [2024-11-02 21:46:19,280 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 21:46:19,281 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 21:46:19,281 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 21:46:19,281 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 21:46:19,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:46:19" (1/1) ... [2024-11-02 21:46:19,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:46:19" (1/1) ... [2024-11-02 21:46:19,291 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:46:19" (1/1) ... [2024-11-02 21:46:19,299 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]. [2024-11-02 21:46:19,299 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:46:19" (1/1) ... [2024-11-02 21:46:19,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:46:19" (1/1) ... [2024-11-02 21:46:19,304 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:46:19" (1/1) ... [2024-11-02 21:46:19,306 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:46:19" (1/1) ... [2024-11-02 21:46:19,307 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:46:19" (1/1) ... [2024-11-02 21:46:19,307 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:46:19" (1/1) ... [2024-11-02 21:46:19,309 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 21:46:19,309 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 21:46:19,309 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 21:46:19,310 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 21:46:19,310 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:46:19" (1/1) ... [2024-11-02 21:46:19,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 21:46:19,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:46:19,333 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) [2024-11-02 21:46:19,335 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 [2024-11-02 21:46:19,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 21:46:19,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-02 21:46:19,355 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 21:46:19,355 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 21:46:19,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 21:46:19,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 21:46:19,421 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 21:46:19,422 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 21:46:19,559 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-02 21:46:19,559 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 21:46:19,567 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 21:46:19,567 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 21:46:19,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:46:19 BoogieIcfgContainer [2024-11-02 21:46:19,568 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 21:46:19,569 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 21:46:19,570 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 21:46:19,572 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 21:46:19,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:46:19" (1/3) ... [2024-11-02 21:46:19,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf901a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:46:19, skipping insertion in model container [2024-11-02 21:46:19,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:46:19" (2/3) ... [2024-11-02 21:46:19,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf901a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:46:19, skipping insertion in model container [2024-11-02 21:46:19,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:46:19" (3/3) ... [2024-11-02 21:46:19,573 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-44.i [2024-11-02 21:46:19,584 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 21:46:19,584 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 21:46:19,626 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 21:46:19,630 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;@673e1c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 21:46:19,630 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 21:46:19,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-02 21:46:19,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-02 21:46:19,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:46:19,640 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 21:46:19,640 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:46:19,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:46:19,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1117978249, now seen corresponding path program 1 times [2024-11-02 21:46:19,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:46:19,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964138196] [2024-11-02 21:46:19,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:46:19,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:46:19,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:46:19,652 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 21:46:19,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 21:46:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:46:19,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 21:46:19,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:46:19,784 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-02 21:46:19,785 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:46:19,856 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-02 21:46:19,857 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:46:19,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964138196] [2024-11-02 21:46:19,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1964138196] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 21:46:19,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 21:46:19,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-02 21:46:19,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635124421] [2024-11-02 21:46:19,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 21:46:19,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 21:46:19,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:46:19,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 21:46:19,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 21:46:19,881 INFO L87 Difference]: Start difference. First operand has 42 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-02 21:46:19,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:46:19,899 INFO L93 Difference]: Finished difference Result 77 states and 128 transitions. [2024-11-02 21:46:19,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 21:46:19,901 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2024-11-02 21:46:19,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:46:19,908 INFO L225 Difference]: With dead ends: 77 [2024-11-02 21:46:19,908 INFO L226 Difference]: Without dead ends: 38 [2024-11-02 21:46:19,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 21:46:19,914 INFO L432 NwaCegarLoop]: 53 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, 53 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 [2024-11-02 21:46:19,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 21:46:19,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-02 21:46:19,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-02 21:46:19,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-02 21:46:19,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2024-11-02 21:46:19,942 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 87 [2024-11-02 21:46:19,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:46:19,942 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2024-11-02 21:46:19,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-02 21:46:19,943 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2024-11-02 21:46:19,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-02 21:46:19,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:46:19,945 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 21:46:19,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 21:46:20,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:46:20,146 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:46:20,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:46:20,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1001633097, now seen corresponding path program 1 times [2024-11-02 21:46:20,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:46:20,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526267188] [2024-11-02 21:46:20,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:46:20,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:46:20,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:46:20,149 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 21:46:20,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 21:46:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:46:20,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-02 21:46:20,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:46:20,539 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-02 21:46:20,540 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:46:20,716 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-02 21:46:20,716 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:46:20,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526267188] [2024-11-02 21:46:20,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1526267188] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 21:46:20,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 21:46:20,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-02 21:46:20,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553758269] [2024-11-02 21:46:20,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 21:46:20,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 21:46:20,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:46:20,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 21:46:20,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-02 21:46:20,720 INFO L87 Difference]: Start difference. First operand 38 states and 53 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-02 21:46:20,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:46:20,856 INFO L93 Difference]: Finished difference Result 46 states and 61 transitions. [2024-11-02 21:46:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 21:46:20,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2024-11-02 21:46:20,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:46:20,858 INFO L225 Difference]: With dead ends: 46 [2024-11-02 21:46:20,858 INFO L226 Difference]: Without dead ends: 44 [2024-11-02 21:46:20,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-02 21:46:20,859 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 5 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 21:46:20,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 186 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 21:46:20,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-02 21:46:20,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2024-11-02 21:46:20,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-02 21:46:20,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 56 transitions. [2024-11-02 21:46:20,871 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 56 transitions. Word has length 87 [2024-11-02 21:46:20,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:46:20,872 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 56 transitions. [2024-11-02 21:46:20,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-02 21:46:20,872 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2024-11-02 21:46:20,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-02 21:46:20,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:46:20,875 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 21:46:20,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 21:46:21,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:46:21,076 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:46:21,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:46:21,076 INFO L85 PathProgramCache]: Analyzing trace with hash -932353188, now seen corresponding path program 1 times [2024-11-02 21:46:21,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:46:21,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52724219] [2024-11-02 21:46:21,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:46:21,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:46:21,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:46:21,079 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 21:46:21,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 21:46:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:46:21,145 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-02 21:46:21,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:46:21,279 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-02 21:46:21,279 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:46:21,470 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-02 21:46:21,471 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:46:21,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52724219] [2024-11-02 21:46:21,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [52724219] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 21:46:21,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 21:46:21,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-11-02 21:46:21,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39573806] [2024-11-02 21:46:21,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 21:46:21,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 21:46:21,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:46:21,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 21:46:21,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-02 21:46:21,472 INFO L87 Difference]: Start difference. First operand 41 states and 56 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-02 21:46:21,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:46:21,536 INFO L93 Difference]: Finished difference Result 46 states and 61 transitions. [2024-11-02 21:46:21,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 21:46:21,537 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 88 [2024-11-02 21:46:21,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:46:21,538 INFO L225 Difference]: With dead ends: 46 [2024-11-02 21:46:21,538 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 21:46:21,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 165 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-02 21:46:21,539 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 13 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 21:46:21,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 190 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 21:46:21,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 21:46:21,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 21:46:21,540 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) [2024-11-02 21:46:21,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 21:46:21,540 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2024-11-02 21:46:21,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:46:21,541 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 21:46:21,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-02 21:46:21,541 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 21:46:21,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 21:46:21,543 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 21:46:21,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-02 21:46:21,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:46:21,749 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-02 21:46:21,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 21:46:21,768 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 21:46:21,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:46:21 BoogieIcfgContainer [2024-11-02 21:46:21,785 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 21:46:21,786 INFO L158 Benchmark]: Toolchain (without parser) took 2735.86ms. Allocated memory is still 371.2MB. Free memory was 332.0MB in the beginning and 138.4MB in the end (delta: 193.6MB). Peak memory consumption was 194.0MB. Max. memory is 8.0GB. [2024-11-02 21:46:21,787 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 197.1MB. Free memory is still 150.7MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-02 21:46:21,788 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.36ms. Allocated memory is still 371.2MB. Free memory was 332.0MB in the beginning and 318.2MB in the end (delta: 13.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-02 21:46:21,788 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.10ms. Allocated memory is still 371.2MB. Free memory was 318.2MB in the beginning and 316.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-02 21:46:21,788 INFO L158 Benchmark]: Boogie Preprocessor took 28.04ms. Allocated memory is still 371.2MB. Free memory was 316.3MB in the beginning and 314.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-02 21:46:21,788 INFO L158 Benchmark]: RCFGBuilder took 258.57ms. Allocated memory is still 371.2MB. Free memory was 314.2MB in the beginning and 301.0MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-11-02 21:46:21,788 INFO L158 Benchmark]: TraceAbstraction took 2215.69ms. Allocated memory is still 371.2MB. Free memory was 300.1MB in the beginning and 138.4MB in the end (delta: 161.7MB). Peak memory consumption was 162.5MB. Max. memory is 8.0GB. [2024-11-02 21:46:21,789 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 197.1MB. Free memory is still 150.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 205.36ms. Allocated memory is still 371.2MB. Free memory was 332.0MB in the beginning and 318.2MB in the end (delta: 13.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.10ms. Allocated memory is still 371.2MB. Free memory was 318.2MB in the beginning and 316.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.04ms. Allocated memory is still 371.2MB. Free memory was 316.3MB in the beginning and 314.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 258.57ms. Allocated memory is still 371.2MB. Free memory was 314.2MB in the beginning and 301.0MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2215.69ms. Allocated memory is still 371.2MB. Free memory was 300.1MB in the beginning and 138.4MB in the end (delta: 161.7MB). Peak memory consumption was 162.5MB. 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: 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, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 429 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 272 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 157 mSDtfsCounter, 62 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 522 GetRequests, 501 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 518 ConstructedInterpolants, 0 QuantifiedInterpolants, 649 SizeOfPredicates, 18 NumberOfNonLiveVariables, 418 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 2086/2184 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: 75]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (((((((((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))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) RESULT: Ultimate proved your program to be correct! [2024-11-02 21:46:21,811 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...