/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 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-22.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 00:55:22,697 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 00:55:22,766 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 00:55:22,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 00:55:22,774 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 00:55:22,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 00:55:22,793 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 00:55:22,794 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 00:55:22,794 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 00:55:22,794 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 00:55:22,795 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 00:55:22,795 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 00:55:22,796 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 00:55:22,796 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 00:55:22,796 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 00:55:22,797 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 00:55:22,797 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 00:55:22,797 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 00:55:22,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 00:55:22,798 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 00:55:22,798 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 00:55:22,802 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 00:55:22,802 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 00:55:22,802 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 00:55:22,803 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 00:55:22,803 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 00:55:22,803 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 00:55:22,804 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 00:55:22,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 00:55:22,804 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 00:55:22,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 00:55:22,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 00:55:22,809 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 00:55:22,810 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 00:55:22,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 00:55:22,810 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 00:55:22,811 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 00:55:22,811 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 00:55:22,811 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 00:55:22,811 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 00:55:22,812 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 00:55:22,812 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 00:55:22,813 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 00:55:22,813 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 00:55:22,813 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-03 00:55:23,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 00:55:23,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 00:55:23,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 00:55:23,058 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 00:55:23,058 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 00:55:23,059 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-22.i [2024-11-03 00:55:24,505 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 00:55:24,728 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 00:55:24,728 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-22.i [2024-11-03 00:55:24,738 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/280985622/094e9241bf4f49afb8f63a007586947a/FLAG9514ba38d [2024-11-03 00:55:24,751 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/280985622/094e9241bf4f49afb8f63a007586947a [2024-11-03 00:55:24,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 00:55:24,754 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 00:55:24,755 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 00:55:24,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 00:55:24,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 00:55:24,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:55:24" (1/1) ... [2024-11-03 00:55:24,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13bee4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:24, skipping insertion in model container [2024-11-03 00:55:24,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:55:24" (1/1) ... [2024-11-03 00:55:24,791 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 00:55:24,954 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_amount100_file-22.i[916,929] [2024-11-03 00:55:25,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 00:55:25,067 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 00:55:25,077 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_amount100_file-22.i[916,929] [2024-11-03 00:55:25,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 00:55:25,147 INFO L204 MainTranslator]: Completed translation [2024-11-03 00:55:25,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25 WrapperNode [2024-11-03 00:55:25,148 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 00:55:25,149 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 00:55:25,149 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 00:55:25,149 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 00:55:25,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 00:55:25,176 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 00:55:25,208 INFO L138 Inliner]: procedures = 27, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 211 [2024-11-03 00:55:25,208 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 00:55:25,213 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 00:55:25,213 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 00:55:25,213 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 00:55:25,223 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 00:55:25,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 00:55:25,228 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 00:55:25,248 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-03 00:55:25,248 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 00:55:25,248 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 00:55:25,261 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 00:55:25,266 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 00:55:25,271 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 00:55:25,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 00:55:25,281 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 00:55:25,282 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 00:55:25,282 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 00:55:25,282 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 00:55:25,283 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 00:55:25,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 00:55:25,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 00:55:25,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-03 00:55:25,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-03 00:55:25,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 00:55:25,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 00:55:25,359 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 00:55:25,359 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 00:55:25,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 00:55:25,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 00:55:25,472 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 00:55:25,474 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 00:55:26,551 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-03 00:55:26,552 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 00:55:26,570 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 00:55:26,570 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 00:55:26,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:55:26 BoogieIcfgContainer [2024-11-03 00:55:26,571 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 00:55:26,573 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 00:55:26,573 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 00:55:26,576 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 00:55:26,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:55:24" (1/3) ... [2024-11-03 00:55:26,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52feb290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:55:26, skipping insertion in model container [2024-11-03 00:55:26,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (2/3) ... [2024-11-03 00:55:26,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52feb290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:55:26, skipping insertion in model container [2024-11-03 00:55:26,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:55:26" (3/3) ... [2024-11-03 00:55:26,579 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-22.i [2024-11-03 00:55:26,600 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 00:55:26,600 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 00:55:26,656 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 00:55:26,662 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;@4052380b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 00:55:26,663 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 00:55:26,667 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 55 states have internal predecessors, (76), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-03 00:55:26,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-03 00:55:26,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 00:55:26,686 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 00:55:26,686 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 00:55:26,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 00:55:26,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1843546310, now seen corresponding path program 1 times [2024-11-03 00:55:26,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 00:55:26,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [402988506] [2024-11-03 00:55:26,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 00:55:26,704 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 00:55:26,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 00:55:26,708 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 00:55:26,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-03 00:55:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 00:55:27,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 00:55:27,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 00:55:27,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-03 00:55:27,191 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 00:55:27,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-03 00:55:27,463 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 00:55:27,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [402988506] [2024-11-03 00:55:27,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [402988506] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 00:55:27,465 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 00:55:27,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 00:55:27,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379842717] [2024-11-03 00:55:27,468 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 00:55:27,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 00:55:27,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 00:55:27,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 00:55:27,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 00:55:27,505 INFO L87 Difference]: Start difference. First operand has 88 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 55 states have internal predecessors, (76), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-03 00:55:27,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 00:55:27,542 INFO L93 Difference]: Finished difference Result 169 states and 301 transitions. [2024-11-03 00:55:27,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 00:55:27,546 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 194 [2024-11-03 00:55:27,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 00:55:27,556 INFO L225 Difference]: With dead ends: 169 [2024-11-03 00:55:27,556 INFO L226 Difference]: Without dead ends: 84 [2024-11-03 00:55:27,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 00:55:27,566 INFO L432 NwaCegarLoop]: 131 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, 131 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 00:55:27,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 00:55:27,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-03 00:55:27,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-03 00:55:27,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 51 states have internal predecessors, (69), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-03 00:55:27,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 131 transitions. [2024-11-03 00:55:27,630 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 131 transitions. Word has length 194 [2024-11-03 00:55:27,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 00:55:27,631 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 131 transitions. [2024-11-03 00:55:27,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-03 00:55:27,632 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 131 transitions. [2024-11-03 00:55:27,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-03 00:55:27,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 00:55:27,635 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 00:55:27,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-03 00:55:27,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 00:55:27,837 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 00:55:27,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 00:55:27,838 INFO L85 PathProgramCache]: Analyzing trace with hash -850663032, now seen corresponding path program 1 times [2024-11-03 00:55:27,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 00:55:27,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067978149] [2024-11-03 00:55:27,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 00:55:27,839 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 00:55:27,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 00:55:27,840 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 00:55:27,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-03 00:55:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 00:55:28,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 00:55:28,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 00:55:29,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 00:55:29,112 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 00:55:29,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 00:55:29,656 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 00:55:29,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067978149] [2024-11-03 00:55:29,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1067978149] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 00:55:29,656 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 00:55:29,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-03 00:55:29,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245914210] [2024-11-03 00:55:29,657 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 00:55:29,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 00:55:29,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 00:55:29,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 00:55:29,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-03 00:55:29,664 INFO L87 Difference]: Start difference. First operand 84 states and 131 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-03 00:55:31,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 00:55:31,042 INFO L93 Difference]: Finished difference Result 268 states and 420 transitions. [2024-11-03 00:55:31,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 00:55:31,056 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 194 [2024-11-03 00:55:31,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 00:55:31,060 INFO L225 Difference]: With dead ends: 268 [2024-11-03 00:55:31,060 INFO L226 Difference]: Without dead ends: 187 [2024-11-03 00:55:31,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-03 00:55:31,063 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 284 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-03 00:55:31,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 493 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-03 00:55:31,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-03 00:55:31,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 162. [2024-11-03 00:55:31,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 97 states have (on average 1.3505154639175259) internal successors, (131), 97 states have internal predecessors, (131), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-03 00:55:31,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 255 transitions. [2024-11-03 00:55:31,148 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 255 transitions. Word has length 194 [2024-11-03 00:55:31,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 00:55:31,150 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 255 transitions. [2024-11-03 00:55:31,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-03 00:55:31,150 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 255 transitions. [2024-11-03 00:55:31,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-03 00:55:31,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 00:55:31,155 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 00:55:31,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-03 00:55:31,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 00:55:31,356 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 00:55:31,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 00:55:31,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1316621499, now seen corresponding path program 1 times [2024-11-03 00:55:31,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 00:55:31,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488269781] [2024-11-03 00:55:31,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 00:55:31,358 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 00:55:31,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 00:55:31,361 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 00:55:31,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-03 00:55:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 00:55:31,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-03 00:55:31,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 00:55:33,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 00:55:33,557 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 00:55:34,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 00:55:34,438 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 00:55:34,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488269781] [2024-11-03 00:55:34,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1488269781] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 00:55:34,439 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 00:55:34,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-03 00:55:34,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595869482] [2024-11-03 00:55:34,439 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 00:55:34,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 00:55:34,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 00:55:34,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 00:55:34,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-03 00:55:34,442 INFO L87 Difference]: Start difference. First operand 162 states and 255 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-03 00:55:38,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 00:55:38,485 INFO L93 Difference]: Finished difference Result 550 states and 858 transitions. [2024-11-03 00:55:38,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 00:55:38,498 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 195 [2024-11-03 00:55:38,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 00:55:38,503 INFO L225 Difference]: With dead ends: 550 [2024-11-03 00:55:38,503 INFO L226 Difference]: Without dead ends: 391 [2024-11-03 00:55:38,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-03 00:55:38,508 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 262 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-03 00:55:38,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 813 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-03 00:55:38,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-03 00:55:38,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 318. [2024-11-03 00:55:38,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 189 states have (on average 1.3386243386243386) internal successors, (253), 189 states have internal predecessors, (253), 124 states have call successors, (124), 4 states have call predecessors, (124), 4 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-03 00:55:38,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 501 transitions. [2024-11-03 00:55:38,587 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 501 transitions. Word has length 195 [2024-11-03 00:55:38,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 00:55:38,588 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 501 transitions. [2024-11-03 00:55:38,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-03 00:55:38,589 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 501 transitions. [2024-11-03 00:55:38,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-03 00:55:38,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 00:55:38,592 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 00:55:38,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-03 00:55:38,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 00:55:38,793 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 00:55:38,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 00:55:38,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1957277443, now seen corresponding path program 1 times [2024-11-03 00:55:38,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 00:55:38,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691563554] [2024-11-03 00:55:38,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 00:55:38,795 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 00:55:38,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 00:55:38,797 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 00:55:38,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-03 00:55:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 00:55:39,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 00:55:39,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 00:55:40,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 00:55:40,765 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 00:55:44,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 00:55:44,954 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 00:55:44,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691563554] [2024-11-03 00:55:44,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [691563554] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 00:55:44,955 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 00:55:44,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2024-11-03 00:55:44,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64742233] [2024-11-03 00:55:44,956 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 00:55:44,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 00:55:44,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 00:55:44,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 00:55:44,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-03 00:55:44,958 INFO L87 Difference]: Start difference. First operand 318 states and 501 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-03 00:55:47,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 00:55:47,629 INFO L93 Difference]: Finished difference Result 503 states and 789 transitions. [2024-11-03 00:55:47,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 00:55:47,649 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 195 [2024-11-03 00:55:47,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 00:55:47,652 INFO L225 Difference]: With dead ends: 503 [2024-11-03 00:55:47,653 INFO L226 Difference]: Without dead ends: 188 [2024-11-03 00:55:47,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 00:55:47,655 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 136 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-03 00:55:47,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 510 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-03 00:55:47,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-03 00:55:47,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 143. [2024-11-03 00:55:47,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 78 states have (on average 1.2564102564102564) internal successors, (98), 78 states have internal predecessors, (98), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-03 00:55:47,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 222 transitions. [2024-11-03 00:55:47,683 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 222 transitions. Word has length 195 [2024-11-03 00:55:47,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 00:55:47,684 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 222 transitions. [2024-11-03 00:55:47,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-03 00:55:47,684 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 222 transitions. [2024-11-03 00:55:47,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-03 00:55:47,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 00:55:47,687 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 00:55:47,696 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-03 00:55:47,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 00:55:47,888 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 00:55:47,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 00:55:47,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1573885918, now seen corresponding path program 1 times [2024-11-03 00:55:47,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 00:55:47,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [243753167] [2024-11-03 00:55:47,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 00:55:47,890 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 00:55:47,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 00:55:47,892 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 00:55:47,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-03 00:55:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 00:55:48,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 00:55:48,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 00:55:48,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 00:55:48,797 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 00:55:49,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 00:55:49,087 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 00:55:49,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [243753167] [2024-11-03 00:55:49,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [243753167] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 00:55:49,087 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 00:55:49,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 6 [2024-11-03 00:55:49,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623531049] [2024-11-03 00:55:49,087 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 00:55:49,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 00:55:49,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 00:55:49,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 00:55:49,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-03 00:55:49,089 INFO L87 Difference]: Start difference. First operand 143 states and 222 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) [2024-11-03 00:55:50,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 00:55:50,883 INFO L93 Difference]: Finished difference Result 334 states and 519 transitions. [2024-11-03 00:55:50,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 00:55:50,896 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) Word has length 196 [2024-11-03 00:55:50,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 00:55:50,899 INFO L225 Difference]: With dead ends: 334 [2024-11-03 00:55:50,899 INFO L226 Difference]: Without dead ends: 253 [2024-11-03 00:55:50,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 386 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-03 00:55:50,900 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 160 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-03 00:55:50,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 435 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-03 00:55:50,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-03 00:55:50,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 223. [2024-11-03 00:55:50,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 126 states have (on average 1.2936507936507937) internal successors, (163), 126 states have internal predecessors, (163), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-03 00:55:50,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 349 transitions. [2024-11-03 00:55:50,934 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 349 transitions. Word has length 196 [2024-11-03 00:55:50,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 00:55:50,935 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 349 transitions. [2024-11-03 00:55:50,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) [2024-11-03 00:55:50,935 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 349 transitions. [2024-11-03 00:55:50,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-03 00:55:50,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 00:55:50,937 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 00:55:50,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-11-03 00:55:51,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 00:55:51,138 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 00:55:51,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 00:55:51,139 INFO L85 PathProgramCache]: Analyzing trace with hash -618608047, now seen corresponding path program 1 times [2024-11-03 00:55:51,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 00:55:51,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361358417] [2024-11-03 00:55:51,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 00:55:51,139 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 00:55:51,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 00:55:51,141 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 00:55:51,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-03 00:55:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 00:55:51,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 00:55:51,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 00:55:51,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 00:55:51,402 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 00:55:51,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 00:55:51,607 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 00:55:51,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361358417] [2024-11-03 00:55:51,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1361358417] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 00:55:51,607 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 00:55:51,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2024-11-03 00:55:51,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776825394] [2024-11-03 00:55:51,607 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 00:55:51,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 00:55:51,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 00:55:51,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 00:55:51,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 00:55:51,609 INFO L87 Difference]: Start difference. First operand 223 states and 349 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-03 00:55:53,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 00:55:53,197 INFO L93 Difference]: Finished difference Result 448 states and 701 transitions. [2024-11-03 00:55:53,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 00:55:53,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-11-03 00:55:53,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 00:55:53,200 INFO L225 Difference]: With dead ends: 448 [2024-11-03 00:55:53,200 INFO L226 Difference]: Without dead ends: 287 [2024-11-03 00:55:53,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-03 00:55:53,203 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 50 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-03 00:55:53,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 400 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-03 00:55:53,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-03 00:55:53,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 263. [2024-11-03 00:55:53,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 166 states have (on average 1.3313253012048192) internal successors, (221), 166 states have internal predecessors, (221), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-03 00:55:53,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 407 transitions. [2024-11-03 00:55:53,245 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 407 transitions. Word has length 197 [2024-11-03 00:55:53,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 00:55:53,248 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 407 transitions. [2024-11-03 00:55:53,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-03 00:55:53,248 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 407 transitions. [2024-11-03 00:55:53,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-03 00:55:53,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 00:55:53,249 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 00:55:53,257 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-03 00:55:53,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 00:55:53,450 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 00:55:53,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 00:55:53,451 INFO L85 PathProgramCache]: Analyzing trace with hash 82456531, now seen corresponding path program 1 times [2024-11-03 00:55:53,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 00:55:53,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250338982] [2024-11-03 00:55:53,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 00:55:53,451 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 00:55:53,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 00:55:53,452 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 00:55:53,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-03 00:55:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 00:55:54,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-03 00:55:54,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 00:55:55,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 828 proven. 27 refuted. 0 times theorem prover too weak. 1005 trivial. 0 not checked. [2024-11-03 00:55:55,729 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 00:55:57,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 63 proven. 27 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2024-11-03 00:55:57,086 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 00:55:57,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250338982] [2024-11-03 00:55:57,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [250338982] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 00:55:57,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 00:55:57,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2024-11-03 00:55:57,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754938254] [2024-11-03 00:55:57,086 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 00:55:57,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-03 00:55:57,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 00:55:57,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-03 00:55:57,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-11-03 00:55:57,088 INFO L87 Difference]: Start difference. First operand 263 states and 407 transitions. Second operand has 16 states, 16 states have (on average 5.6875) internal successors, (91), 16 states have internal predecessors, (91), 4 states have call successors, (62), 3 states have call predecessors, (62), 5 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2024-11-03 00:56:03,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 00:56:03,465 INFO L93 Difference]: Finished difference Result 609 states and 932 transitions. [2024-11-03 00:56:03,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-03 00:56:03,482 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.6875) internal successors, (91), 16 states have internal predecessors, (91), 4 states have call successors, (62), 3 states have call predecessors, (62), 5 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) Word has length 197 [2024-11-03 00:56:03,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 00:56:03,486 INFO L225 Difference]: With dead ends: 609 [2024-11-03 00:56:03,486 INFO L226 Difference]: Without dead ends: 411 [2024-11-03 00:56:03,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2024-11-03 00:56:03,488 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 289 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-03 00:56:03,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 831 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-03 00:56:03,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-03 00:56:03,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 284. [2024-11-03 00:56:03,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 185 states have (on average 1.335135135135135) internal successors, (247), 185 states have internal predecessors, (247), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-03 00:56:03,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 433 transitions. [2024-11-03 00:56:03,530 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 433 transitions. Word has length 197 [2024-11-03 00:56:03,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 00:56:03,531 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 433 transitions. [2024-11-03 00:56:03,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.6875) internal successors, (91), 16 states have internal predecessors, (91), 4 states have call successors, (62), 3 states have call predecessors, (62), 5 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2024-11-03 00:56:03,531 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 433 transitions. [2024-11-03 00:56:03,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-03 00:56:03,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 00:56:03,532 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 00:56:03,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-03 00:56:03,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 00:56:03,734 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 00:56:03,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 00:56:03,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1258151658, now seen corresponding path program 1 times [2024-11-03 00:56:03,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 00:56:03,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506113296] [2024-11-03 00:56:03,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 00:56:03,735 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 00:56:03,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 00:56:03,736 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 00:56:03,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-03 00:56:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 00:56:04,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 00:56:04,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 00:56:09,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 918 proven. 54 refuted. 0 times theorem prover too weak. 888 trivial. 0 not checked. [2024-11-03 00:56:09,580 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 00:56:20,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 36 proven. 54 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2024-11-03 00:56:20,211 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 00:56:20,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506113296] [2024-11-03 00:56:20,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [506113296] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 00:56:20,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 00:56:20,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-03 00:56:20,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642668097] [2024-11-03 00:56:20,212 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 00:56:20,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-03 00:56:20,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 00:56:20,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-03 00:56:20,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-03 00:56:20,213 INFO L87 Difference]: Start difference. First operand 284 states and 433 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 4 states have call successors, (62), 3 states have call predecessors, (62), 5 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2024-11-03 00:56:45,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 00:56:45,874 INFO L93 Difference]: Finished difference Result 405 states and 607 transitions. [2024-11-03 00:56:45,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-03 00:56:45,883 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 4 states have call successors, (62), 3 states have call predecessors, (62), 5 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) Word has length 197 [2024-11-03 00:56:45,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 00:56:45,886 INFO L225 Difference]: With dead ends: 405 [2024-11-03 00:56:45,886 INFO L226 Difference]: Without dead ends: 302 [2024-11-03 00:56:45,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=187, Invalid=365, Unknown=0, NotChecked=0, Total=552 [2024-11-03 00:56:45,888 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 267 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2024-11-03 00:56:45,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 348 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 15.5s Time] [2024-11-03 00:56:45,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-03 00:56:45,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 197. [2024-11-03 00:56:45,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 128 states have (on average 1.25) internal successors, (160), 128 states have internal predecessors, (160), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-03 00:56:45,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 284 transitions. [2024-11-03 00:56:45,941 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 284 transitions. Word has length 197 [2024-11-03 00:56:45,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 00:56:45,941 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 284 transitions. [2024-11-03 00:56:45,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 4 states have call successors, (62), 3 states have call predecessors, (62), 5 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2024-11-03 00:56:45,942 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 284 transitions. [2024-11-03 00:56:45,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-03 00:56:45,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 00:56:45,943 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 00:56:45,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-03 00:56:46,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 00:56:46,143 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 00:56:46,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 00:56:46,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1727608885, now seen corresponding path program 1 times [2024-11-03 00:56:46,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 00:56:46,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143004260] [2024-11-03 00:56:46,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 00:56:46,144 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 00:56:46,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 00:56:46,146 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 00:56:46,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-03 00:56:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 00:56:46,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-03 00:56:46,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 00:56:47,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 828 proven. 27 refuted. 0 times theorem prover too weak. 1005 trivial. 0 not checked. [2024-11-03 00:56:47,694 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 00:56:48,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 63 proven. 27 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2024-11-03 00:56:48,802 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 00:56:48,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143004260] [2024-11-03 00:56:48,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [143004260] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 00:56:48,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 00:56:48,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2024-11-03 00:56:48,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443970711] [2024-11-03 00:56:48,803 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 00:56:48,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-03 00:56:48,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 00:56:48,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-03 00:56:48,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-11-03 00:56:48,805 INFO L87 Difference]: Start difference. First operand 197 states and 284 transitions. Second operand has 18 states, 18 states have (on average 5.166666666666667) internal successors, (93), 18 states have internal predecessors, (93), 4 states have call successors, (62), 3 states have call predecessors, (62), 5 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2024-11-03 00:56:54,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 00:56:54,363 INFO L93 Difference]: Finished difference Result 420 states and 621 transitions. [2024-11-03 00:56:54,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-03 00:56:54,364 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.166666666666667) internal successors, (93), 18 states have internal predecessors, (93), 4 states have call successors, (62), 3 states have call predecessors, (62), 5 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) Word has length 198 [2024-11-03 00:56:54,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 00:56:54,366 INFO L225 Difference]: With dead ends: 420 [2024-11-03 00:56:54,366 INFO L226 Difference]: Without dead ends: 317 [2024-11-03 00:56:54,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=265, Invalid=727, Unknown=0, NotChecked=0, Total=992 [2024-11-03 00:56:54,369 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 296 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-03 00:56:54,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 904 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-03 00:56:54,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-03 00:56:54,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 197. [2024-11-03 00:56:54,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 128 states have (on average 1.25) internal successors, (160), 128 states have internal predecessors, (160), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-03 00:56:54,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 284 transitions. [2024-11-03 00:56:54,410 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 284 transitions. Word has length 198 [2024-11-03 00:56:54,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 00:56:54,410 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 284 transitions. [2024-11-03 00:56:54,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.166666666666667) internal successors, (93), 18 states have internal predecessors, (93), 4 states have call successors, (62), 3 states have call predecessors, (62), 5 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2024-11-03 00:56:54,410 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 284 transitions. [2024-11-03 00:56:54,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-03 00:56:54,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 00:56:54,412 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 00:56:54,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-03 00:56:54,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 00:56:54,612 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 00:56:54,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 00:56:54,613 INFO L85 PathProgramCache]: Analyzing trace with hash -2026486379, now seen corresponding path program 1 times [2024-11-03 00:56:54,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 00:56:54,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153911111] [2024-11-03 00:56:54,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 00:56:54,614 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 00:56:54,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 00:56:54,617 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 00:56:54,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-03 00:56:55,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 00:56:55,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-03 00:56:55,734 INFO L278 TraceCheckSpWp]: Computing forward predicates...