/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_amount250_file-25.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-02 21:50:56,931 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 21:50:56,995 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 21:50:57,000 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 21:50:57,000 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 21:50:57,025 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 21:50:57,026 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 21:50:57,026 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 21:50:57,027 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-02 21:50:57,027 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-02 21:50:57,027 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 21:50:57,028 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 21:50:57,028 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 21:50:57,028 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 21:50:57,029 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 21:50:57,029 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 21:50:57,031 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 21:50:57,032 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 21:50:57,033 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 21:50:57,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 21:50:57,033 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 21:50:57,033 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 21:50:57,033 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 21:50:57,034 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 21:50:57,034 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 21:50:57,034 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 21:50:57,034 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 21:50:57,036 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 21:50:57,036 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 21:50:57,036 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 21:50:57,036 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 21:50:57,036 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 21:50:57,037 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 21:50:57,037 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 21:50:57,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 21:50:57,037 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 21:50:57,037 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 21:50:57,037 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 21:50:57,038 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-02 21:50:57,038 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 21:50:57,038 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 21:50:57,039 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-02 21:50:57,039 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-02 21:50:57,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 21:50:57,039 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:50:57,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 21:50:57,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 21:50:57,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 21:50:57,262 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 21:50:57,262 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 21:50:57,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-25.i [2024-11-02 21:50:58,648 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 21:50:58,917 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 21:50:58,921 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-25.i [2024-11-02 21:50:58,935 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/effef6683/45c3f60e2e1c4f56a819800f095f2e54/FLAGa92970472 [2024-11-02 21:50:59,233 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/effef6683/45c3f60e2e1c4f56a819800f095f2e54 [2024-11-02 21:50:59,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 21:50:59,236 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-02 21:50:59,237 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 21:50:59,237 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 21:50:59,242 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 21:50:59,242 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:50:59" (1/1) ... [2024-11-02 21:50:59,243 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f83b3b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59, skipping insertion in model container [2024-11-02 21:50:59,243 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:50:59" (1/1) ... [2024-11-02 21:50:59,283 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 21:50:59,420 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_amount250_file-25.i[916,929] [2024-11-02 21:50:59,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 21:50:59,573 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 21:50:59,586 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_amount250_file-25.i[916,929] [2024-11-02 21:50:59,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 21:50:59,698 INFO L204 MainTranslator]: Completed translation [2024-11-02 21:50:59,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59 WrapperNode [2024-11-02 21:50:59,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 21:50:59,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 21:50:59,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 21:50:59,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 21:50:59,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ... [2024-11-02 21:50:59,729 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ... [2024-11-02 21:50:59,762 INFO L138 Inliner]: procedures = 27, calls = 67, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 378 [2024-11-02 21:50:59,762 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 21:50:59,763 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 21:50:59,763 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 21:50:59,763 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 21:50:59,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ... [2024-11-02 21:50:59,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ... [2024-11-02 21:50:59,777 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ... [2024-11-02 21:50:59,794 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 21:50:59,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ... [2024-11-02 21:50:59,795 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ... [2024-11-02 21:50:59,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ... [2024-11-02 21:50:59,820 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ... [2024-11-02 21:50:59,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ... [2024-11-02 21:50:59,835 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ... [2024-11-02 21:50:59,851 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 21:50:59,852 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 21:50:59,852 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 21:50:59,852 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 21:50:59,853 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ... [2024-11-02 21:50:59,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 21:50:59,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:50:59,891 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 21:50:59,896 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 21:50:59,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 21:50:59,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-02 21:50:59,913 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 21:50:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 21:50:59,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 21:50:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 21:51:00,009 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 21:51:00,011 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 21:51:23,218 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-11-02 21:51:23,218 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 21:51:23,232 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 21:51:23,232 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 21:51:23,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:51:23 BoogieIcfgContainer [2024-11-02 21:51:23,233 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 21:51:23,237 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 21:51:23,237 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 21:51:23,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 21:51:23,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:50:59" (1/3) ... [2024-11-02 21:51:23,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4487dec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:51:23, skipping insertion in model container [2024-11-02 21:51:23,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (2/3) ... [2024-11-02 21:51:23,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4487dec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:51:23, skipping insertion in model container [2024-11-02 21:51:23,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:51:23" (3/3) ... [2024-11-02 21:51:23,243 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-25.i [2024-11-02 21:51:23,256 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 21:51:23,256 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 21:51:23,394 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 21:51:23,399 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;@163499c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 21:51:23,399 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 21:51:23,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 157 states, 100 states have (on average 1.46) internal successors, (146), 101 states have internal predecessors, (146), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-02 21:51:23,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-02 21:51:23,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:51:23,425 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 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, 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, 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, 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 21:51:23,425 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:51:23,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:51:23,431 INFO L85 PathProgramCache]: Analyzing trace with hash -946463485, now seen corresponding path program 1 times [2024-11-02 21:51:23,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:51:23,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15423698] [2024-11-02 21:51:23,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:51:23,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:51:23,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:51:23,442 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 21:51:23,444 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 21:51:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:51:24,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 21:51:24,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:51:25,082 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 5618 trivial. 0 not checked. [2024-11-02 21:51:25,083 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:51:30,215 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 5618 trivial. 0 not checked. [2024-11-02 21:51:30,220 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:51:30,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15423698] [2024-11-02 21:51:30,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [15423698] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 21:51:30,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 21:51:30,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-02 21:51:30,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027906815] [2024-11-02 21:51:30,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 21:51:30,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 21:51:30,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:51:30,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 21:51:30,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 21:51:30,256 INFO L87 Difference]: Start difference. First operand has 157 states, 100 states have (on average 1.46) internal successors, (146), 101 states have internal predecessors, (146), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-02 21:51:30,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:51:30,297 INFO L93 Difference]: Finished difference Result 307 states and 556 transitions. [2024-11-02 21:51:30,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 21:51:30,299 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 2 states have call successors, (54) Word has length 344 [2024-11-02 21:51:30,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:51:30,306 INFO L225 Difference]: With dead ends: 307 [2024-11-02 21:51:30,306 INFO L226 Difference]: Without dead ends: 153 [2024-11-02 21:51:30,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 686 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 21:51:30,313 INFO L432 NwaCegarLoop]: 247 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, 247 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 21:51:30,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 21:51:30,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-02 21:51:30,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2024-11-02 21:51:30,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 97 states have (on average 1.4329896907216495) internal successors, (139), 97 states have internal predecessors, (139), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-02 21:51:30,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 247 transitions. [2024-11-02 21:51:30,359 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 247 transitions. Word has length 344 [2024-11-02 21:51:30,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:51:30,360 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 247 transitions. [2024-11-02 21:51:30,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-02 21:51:30,360 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 247 transitions. [2024-11-02 21:51:30,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-02 21:51:30,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:51:30,365 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 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, 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, 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, 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 21:51:30,509 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 21:51:30,566 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 21:51:30,567 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:51:30,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:51:30,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1468219451, now seen corresponding path program 1 times [2024-11-02 21:51:30,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:51:30,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [929421149] [2024-11-02 21:51:30,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:51:30,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:51:30,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:51:30,570 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 21:51:30,571 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 21:51:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:51:32,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 21:51:32,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:51:32,192 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-02 21:51:32,192 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:51:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-02 21:51:37,435 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:51:37,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [929421149] [2024-11-02 21:51:37,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [929421149] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 21:51:37,436 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 21:51:37,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-02 21:51:37,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94685731] [2024-11-02 21:51:37,436 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 21:51:37,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 21:51:37,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:51:37,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 21:51:37,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 21:51:37,440 INFO L87 Difference]: Start difference. First operand 153 states and 247 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-02 21:51:43,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-02 21:51:47,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-02 21:51:48,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:51:48,030 INFO L93 Difference]: Finished difference Result 442 states and 713 transitions. [2024-11-02 21:51:48,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 21:51:48,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 344 [2024-11-02 21:51:48,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:51:48,035 INFO L225 Difference]: With dead ends: 442 [2024-11-02 21:51:48,035 INFO L226 Difference]: Without dead ends: 292 [2024-11-02 21:51:48,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 685 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 21:51:48,037 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 226 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-02 21:51:48,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 611 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 27 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2024-11-02 21:51:48,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-02 21:51:48,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 173. [2024-11-02 21:51:48,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 117 states have (on average 1.4273504273504274) internal successors, (167), 117 states have internal predecessors, (167), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-02 21:51:48,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 275 transitions. [2024-11-02 21:51:48,060 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 275 transitions. Word has length 344 [2024-11-02 21:51:48,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:51:48,062 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 275 transitions. [2024-11-02 21:51:48,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-02 21:51:48,062 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 275 transitions. [2024-11-02 21:51:48,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-02 21:51:48,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:51:48,066 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 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, 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, 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, 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 21:51:48,220 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 21:51:48,269 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 21:51:48,270 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:51:48,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:51:48,271 INFO L85 PathProgramCache]: Analyzing trace with hash 450958009, now seen corresponding path program 1 times [2024-11-02 21:51:48,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:51:48,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [269410495] [2024-11-02 21:51:48,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:51:48,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:51:48,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:51:48,273 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 21:51:48,274 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 21:51:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:51:49,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 21:51:49,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:52:07,469 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-02 21:52:07,470 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:52:18,917 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-02 21:52:18,917 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:52:18,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [269410495] [2024-11-02 21:52:18,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [269410495] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 21:52:18,918 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 21:52:18,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2024-11-02 21:52:18,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897005870] [2024-11-02 21:52:18,918 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 21:52:18,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 21:52:18,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:52:18,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 21:52:18,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-02 21:52:18,920 INFO L87 Difference]: Start difference. First operand 173 states and 275 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 2 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) [2024-11-02 21:52:27,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-02 21:52:31,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-02 21:52:35,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-02 21:52:39,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-02 21:52:43,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []