/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-85.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-02 21:48:14,305 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 21:48:14,357 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 21:48:14,361 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 21:48:14,362 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 21:48:14,380 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 21:48:14,381 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 21:48:14,381 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 21:48:14,382 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-02 21:48:14,382 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-02 21:48:14,382 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 21:48:14,383 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 21:48:14,383 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 21:48:14,383 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 21:48:14,384 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 21:48:14,384 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 21:48:14,384 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 21:48:14,385 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 21:48:14,385 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 21:48:14,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 21:48:14,386 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 21:48:14,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 21:48:14,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 21:48:14,387 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 21:48:14,387 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 21:48:14,387 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 21:48:14,387 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 21:48:14,388 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 21:48:14,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 21:48:14,388 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 21:48:14,388 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 21:48:14,389 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 21:48:14,389 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 21:48:14,389 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 21:48:14,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 21:48:14,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 21:48:14,390 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 21:48:14,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 21:48:14,390 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-02 21:48:14,391 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 21:48:14,391 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 21:48:14,391 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-02 21:48:14,391 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-02 21:48:14,392 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 21:48:14,392 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:48:14,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 21:48:14,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 21:48:14,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 21:48:14,652 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 21:48:14,653 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 21:48:14,654 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-85.i [2024-11-02 21:48:16,008 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 21:48:16,187 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 21:48:16,188 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-85.i [2024-11-02 21:48:16,194 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9761ed543/afb422b1b570487d908b9d7f6a547a92/FLAG396247393 [2024-11-02 21:48:16,581 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9761ed543/afb422b1b570487d908b9d7f6a547a92 [2024-11-02 21:48:16,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 21:48:16,584 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-02 21:48:16,585 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 21:48:16,585 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 21:48:16,591 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 21:48:16,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:48:16" (1/1) ... [2024-11-02 21:48:16,592 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b22d47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:16, skipping insertion in model container [2024-11-02 21:48:16,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:48:16" (1/1) ... [2024-11-02 21:48:16,613 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 21:48:16,777 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-85.i[915,928] [2024-11-02 21:48:16,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 21:48:16,817 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 21:48:16,827 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-85.i[915,928] [2024-11-02 21:48:16,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 21:48:16,855 INFO L204 MainTranslator]: Completed translation [2024-11-02 21:48:16,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:16 WrapperNode [2024-11-02 21:48:16,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 21:48:16,857 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 21:48:16,857 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 21:48:16,857 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 21:48:16,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:16" (1/1) ... [2024-11-02 21:48:16,874 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:16" (1/1) ... [2024-11-02 21:48:16,894 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2024-11-02 21:48:16,894 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 21:48:16,895 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 21:48:16,895 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 21:48:16,895 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 21:48:16,905 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:16" (1/1) ... [2024-11-02 21:48:16,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:16" (1/1) ... [2024-11-02 21:48:16,908 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:16" (1/1) ... [2024-11-02 21:48:16,918 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 21:48:16,918 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:16" (1/1) ... [2024-11-02 21:48:16,919 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:16" (1/1) ... [2024-11-02 21:48:16,925 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:16" (1/1) ... [2024-11-02 21:48:16,928 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:16" (1/1) ... [2024-11-02 21:48:16,930 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:16" (1/1) ... [2024-11-02 21:48:16,931 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:16" (1/1) ... [2024-11-02 21:48:16,934 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 21:48:16,934 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 21:48:16,935 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 21:48:16,935 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 21:48:16,935 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:16" (1/1) ... [2024-11-02 21:48:16,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 21:48:16,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:48:16,963 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 21:48:16,965 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 21:48:16,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 21:48:16,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-02 21:48:16,984 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 21:48:16,984 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 21:48:16,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 21:48:16,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 21:48:17,069 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 21:48:17,071 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 21:48:17,302 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-02 21:48:17,303 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 21:48:17,315 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 21:48:17,315 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 21:48:17,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:48:17 BoogieIcfgContainer [2024-11-02 21:48:17,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 21:48:17,317 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 21:48:17,318 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 21:48:17,321 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 21:48:17,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:48:16" (1/3) ... [2024-11-02 21:48:17,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d158ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:48:17, skipping insertion in model container [2024-11-02 21:48:17,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:16" (2/3) ... [2024-11-02 21:48:17,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d158ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:48:17, skipping insertion in model container [2024-11-02 21:48:17,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:48:17" (3/3) ... [2024-11-02 21:48:17,323 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-85.i [2024-11-02 21:48:17,341 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 21:48:17,341 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 21:48:17,389 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 21:48:17,395 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;@3a4ff3bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 21:48:17,395 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 21:48:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 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 21:48:17,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-02 21:48:17,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:48:17,411 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] [2024-11-02 21:48:17,412 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:48:17,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:48:17,416 INFO L85 PathProgramCache]: Analyzing trace with hash 950632074, now seen corresponding path program 1 times [2024-11-02 21:48:17,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:48:17,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116557667] [2024-11-02 21:48:17,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:48:17,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:48:17,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:48:17,425 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 21:48:17,426 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 21:48:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:48:17,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-02 21:48:17,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:48:21,776 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-02 21:48:21,776 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:48:28,842 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 21:48:28,843 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:48:28,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116557667] [2024-11-02 21:48:28,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2116557667] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 21:48:28,844 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 21:48:28,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 6] imperfect sequences [] total 12 [2024-11-02 21:48:28,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527615419] [2024-11-02 21:48:28,846 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 21:48:28,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-02 21:48:28,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:48:28,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-02 21:48:28,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-02 21:48:28,876 INFO L87 Difference]: Start difference. First operand has 42 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 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 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-02 21:48:32,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:48:32,974 INFO L93 Difference]: Finished difference Result 85 states and 142 transitions. [2024-11-02 21:48:32,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-02 21:48:32,983 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 86 [2024-11-02 21:48:32,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:48:32,989 INFO L225 Difference]: With dead ends: 85 [2024-11-02 21:48:32,989 INFO L226 Difference]: Without dead ends: 46 [2024-11-02 21:48:32,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-02 21:48:32,995 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 11 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-02 21:48:32,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 243 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-02 21:48:33,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-02 21:48:33,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2024-11-02 21:48:33,022 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 21:48:33,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 56 transitions. [2024-11-02 21:48:33,024 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 56 transitions. Word has length 86 [2024-11-02 21:48:33,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:48:33,026 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 56 transitions. [2024-11-02 21:48:33,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-02 21:48:33,026 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2024-11-02 21:48:33,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-02 21:48:33,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:48:33,029 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 21:48:33,046 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 21:48:33,230 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 21:48:33,230 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:48:33,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:48:33,231 INFO L85 PathProgramCache]: Analyzing trace with hash -978500459, now seen corresponding path program 1 times [2024-11-02 21:48:33,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:48:33,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833997557] [2024-11-02 21:48:33,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:48:33,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:48:33,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:48:33,233 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 21:48:33,234 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 21:48:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:48:33,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-02 21:48:33,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:48:36,484 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-02 21:48:36,485 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:48:43,649 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 21:48:43,649 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:48:43,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833997557] [2024-11-02 21:48:43,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1833997557] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 21:48:43,650 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 21:48:43,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 14 [2024-11-02 21:48:43,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223686458] [2024-11-02 21:48:43,650 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 21:48:43,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-02 21:48:43,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:48:43,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-02 21:48:43,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-02 21:48:43,653 INFO L87 Difference]: Start difference. First operand 41 states and 56 transitions. Second operand has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-02 21:48:54,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-02 21:49:01,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:49:01,700 INFO L93 Difference]: Finished difference Result 68 states and 86 transitions. [2024-11-02 21:49:01,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-02 21:49:01,708 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 87 [2024-11-02 21:49:01,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:49:01,710 INFO L225 Difference]: With dead ends: 68 [2024-11-02 21:49:01,710 INFO L226 Difference]: Without dead ends: 66 [2024-11-02 21:49:01,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2024-11-02 21:49:01,712 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 24 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-02 21:49:01,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 198 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2024-11-02 21:49:01,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-02 21:49:01,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 53. [2024-11-02 21:49:01,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.088235294117647) internal successors, (37), 35 states have internal predecessors, (37), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-02 21:49:01,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2024-11-02 21:49:01,725 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 87 [2024-11-02 21:49:01,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:49:01,725 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2024-11-02 21:49:01,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-02 21:49:01,726 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2024-11-02 21:49:01,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-02 21:49:01,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:49:01,728 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 21:49:01,745 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 21:49:01,929 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 21:49:01,929 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:49:01,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:49:01,930 INFO L85 PathProgramCache]: Analyzing trace with hash -218011968, now seen corresponding path program 1 times [2024-11-02 21:49:01,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:49:01,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628171612] [2024-11-02 21:49:01,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:49:01,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:49:01,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:49:01,932 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 21:49:01,933 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 21:49:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:49:01,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-02 21:49:02,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:49:05,973 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-02 21:49:05,974 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:49:15,739 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 21:49:15,740 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:49:15,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628171612] [2024-11-02 21:49:15,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1628171612] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 21:49:15,740 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 21:49:15,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 16 [2024-11-02 21:49:15,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319086236] [2024-11-02 21:49:15,741 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 21:49:15,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-02 21:49:15,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:49:15,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-02 21:49:15,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-02 21:49:15,743 INFO L87 Difference]: Start difference. First operand 53 states and 69 transitions. Second operand has 16 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-02 21:49:23,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-02 21:49:27,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:49:27,944 INFO L93 Difference]: Finished difference Result 65 states and 83 transitions. [2024-11-02 21:49:27,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-02 21:49:27,951 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 88 [2024-11-02 21:49:27,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:49:27,952 INFO L225 Difference]: With dead ends: 65 [2024-11-02 21:49:27,952 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 21:49:27,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2024-11-02 21:49:27,954 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 22 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-11-02 21:49:27,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 202 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 298 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2024-11-02 21:49:27,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 21:49:27,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 21:49:27,955 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 21:49:27,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 21:49:27,956 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2024-11-02 21:49:27,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:49:27,956 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 21:49:27,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-02 21:49:27,956 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 21:49:27,956 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 21:49:27,959 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 21:49:27,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-02 21:49:28,159 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 21:49:28,163 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-02 21:49:28,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 21:49:32,081 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 21:49:32,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:49:32 BoogieIcfgContainer [2024-11-02 21:49:32,103 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 21:49:32,103 INFO L158 Benchmark]: Toolchain (without parser) took 75519.07ms. Allocated memory was 186.6MB in the beginning and 765.5MB in the end (delta: 578.8MB). Free memory was 125.8MB in the beginning and 466.1MB in the end (delta: -340.3MB). Peak memory consumption was 239.3MB. Max. memory is 8.0GB. [2024-11-02 21:49:32,103 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 186.6MB. Free memory is still 140.7MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-02 21:49:32,104 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.33ms. Allocated memory is still 186.6MB. Free memory was 125.5MB in the beginning and 111.7MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-02 21:49:32,104 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.04ms. Allocated memory is still 186.6MB. Free memory was 111.7MB in the beginning and 110.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-02 21:49:32,105 INFO L158 Benchmark]: Boogie Preprocessor took 38.77ms. Allocated memory is still 186.6MB. Free memory was 109.7MB in the beginning and 107.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-02 21:49:32,105 INFO L158 Benchmark]: RCFGBuilder took 381.22ms. Allocated memory was 186.6MB in the beginning and 235.9MB in the end (delta: 49.3MB). Free memory was 107.6MB in the beginning and 199.2MB in the end (delta: -91.5MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. [2024-11-02 21:49:32,106 INFO L158 Benchmark]: TraceAbstraction took 74785.40ms. Allocated memory was 235.9MB in the beginning and 765.5MB in the end (delta: 529.5MB). Free memory was 198.6MB in the beginning and 466.1MB in the end (delta: -267.4MB). Peak memory consumption was 262.6MB. Max. memory is 8.0GB. [2024-11-02 21:49:32,108 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 186.6MB. Free memory is still 140.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 271.33ms. Allocated memory is still 186.6MB. Free memory was 125.5MB in the beginning and 111.7MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.04ms. Allocated memory is still 186.6MB. Free memory was 111.7MB in the beginning and 110.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.77ms. Allocated memory is still 186.6MB. Free memory was 109.7MB in the beginning and 107.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 381.22ms. Allocated memory was 186.6MB in the beginning and 235.9MB in the end (delta: 49.3MB). Free memory was 107.6MB in the beginning and 199.2MB in the end (delta: -91.5MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. * TraceAbstraction took 74785.40ms. Allocated memory was 235.9MB in the beginning and 765.5MB in the end (delta: 529.5MB). Free memory was 198.6MB in the beginning and 466.1MB in the end (delta: -267.4MB). Peak memory consumption was 262.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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: 70.8s, OverallIterations: 3, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 34.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 22.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 643 SdHoareTripleChecker+Invalid, 20.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 534 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 913 IncrementalHoareTripleChecker+Invalid, 960 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 109 mSDtfsCounter, 913 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 535 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 28.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=2, InterpolantAutomatonStates: 43, 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, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 35.4s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 516 ConstructedInterpolants, 2 QuantifiedInterpolants, 1536 SizeOfPredicates, 35 NumberOfNonLiveVariables, 422 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 2184/2184 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: 80]: 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: ((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))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7)))) RESULT: Ultimate proved your program to be correct! [2024-11-02 21:49:32,161 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...