/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 bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/bitvector/sum02-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 13:37:39,458 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 13:37:39,535 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 13:37:39,539 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 13:37:39,539 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 13:37:39,565 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 13:37:39,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 13:37:39,566 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 13:37:39,567 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 13:37:39,567 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 13:37:39,567 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 13:37:39,568 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 13:37:39,568 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 13:37:39,570 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 13:37:39,570 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 13:37:39,570 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 13:37:39,571 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 13:37:39,571 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 13:37:39,571 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 13:37:39,571 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 13:37:39,572 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 13:37:39,572 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 13:37:39,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 13:37:39,573 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 13:37:39,573 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 13:37:39,573 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 13:37:39,574 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 13:37:39,574 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 13:37:39,574 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 13:37:39,575 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 13:37:39,575 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 13:37:39,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 13:37:39,575 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 13:37:39,576 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 13:37:39,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 13:37:39,576 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 13:37:39,577 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 13:37:39,577 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 13:37:39,577 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 13:37:39,577 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 13:37:39,578 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 13:37:39,580 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 13:37:39,580 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 13:37:39,580 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 13:37:39,581 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 13:37:39,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 13:37:39,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 13:37:39,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 13:37:39,826 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 13:37:39,826 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 13:37:39,828 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/sum02-2.c [2024-11-03 13:37:41,221 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 13:37:41,387 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 13:37:41,388 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/sum02-2.c [2024-11-03 13:37:41,393 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e499a62e/5e04948e5b3e435b90aa9731d615917c/FLAGf6cb828f3 [2024-11-03 13:37:41,407 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e499a62e/5e04948e5b3e435b90aa9731d615917c [2024-11-03 13:37:41,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 13:37:41,411 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 13:37:41,413 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 13:37:41,413 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 13:37:41,418 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 13:37:41,419 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:37:41" (1/1) ... [2024-11-03 13:37:41,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59963016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:41, skipping insertion in model container [2024-11-03 13:37:41,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:37:41" (1/1) ... [2024-11-03 13:37:41,441 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 13:37:41,608 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/sum02-2.c[711,724] [2024-11-03 13:37:41,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 13:37:41,630 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 13:37:41,639 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/sum02-2.c[711,724] [2024-11-03 13:37:41,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 13:37:41,657 INFO L204 MainTranslator]: Completed translation [2024-11-03 13:37:41,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:41 WrapperNode [2024-11-03 13:37:41,658 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 13:37:41,659 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 13:37:41,659 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 13:37:41,659 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 13:37:41,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:41" (1/1) ... [2024-11-03 13:37:41,672 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:41" (1/1) ... [2024-11-03 13:37:41,686 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 36 [2024-11-03 13:37:41,687 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 13:37:41,688 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 13:37:41,688 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 13:37:41,688 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 13:37:41,696 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:41" (1/1) ... [2024-11-03 13:37:41,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:41" (1/1) ... [2024-11-03 13:37:41,698 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:41" (1/1) ... [2024-11-03 13:37:41,708 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 13:37:41,709 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:41" (1/1) ... [2024-11-03 13:37:41,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:41" (1/1) ... [2024-11-03 13:37:41,713 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:41" (1/1) ... [2024-11-03 13:37:41,716 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:41" (1/1) ... [2024-11-03 13:37:41,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:41" (1/1) ... [2024-11-03 13:37:41,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:41" (1/1) ... [2024-11-03 13:37:41,720 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 13:37:41,720 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 13:37:41,721 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 13:37:41,721 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 13:37:41,722 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:41" (1/1) ... [2024-11-03 13:37:41,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 13:37:41,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 13:37:41,749 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 13:37:41,755 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 13:37:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 13:37:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 13:37:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 13:37:41,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 13:37:41,862 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 13:37:41,864 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 13:37:42,086 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-03 13:37:42,087 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 13:37:42,100 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 13:37:42,101 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 13:37:42,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:37:42 BoogieIcfgContainer [2024-11-03 13:37:42,102 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 13:37:42,104 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 13:37:42,105 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 13:37:42,107 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 13:37:42,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:37:41" (1/3) ... [2024-11-03 13:37:42,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60982864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:37:42, skipping insertion in model container [2024-11-03 13:37:42,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:41" (2/3) ... [2024-11-03 13:37:42,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60982864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:37:42, skipping insertion in model container [2024-11-03 13:37:42,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:37:42" (3/3) ... [2024-11-03 13:37:42,112 INFO L112 eAbstractionObserver]: Analyzing ICFG sum02-2.c [2024-11-03 13:37:42,129 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 13:37:42,129 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 13:37:42,176 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 13:37:42,182 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;@6cfd5ee2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 13:37:42,182 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 13:37:42,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:42,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-03 13:37:42,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:42,193 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 13:37:42,194 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:42,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:42,198 INFO L85 PathProgramCache]: Analyzing trace with hash 119658891, now seen corresponding path program 1 times [2024-11-03 13:37:42,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:42,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [885239310] [2024-11-03 13:37:42,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:42,208 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:42,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:42,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:42,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 13:37:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:42,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 13:37:42,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:42,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 13:37:42,274 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:42,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 13:37:42,278 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:42,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [885239310] [2024-11-03 13:37:42,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [885239310] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:42,279 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:42,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 13:37:42,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022152800] [2024-11-03 13:37:42,282 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:42,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 13:37:42,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:42,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 13:37:42,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 13:37:42,305 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:42,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:42,316 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2024-11-03 13:37:42,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 13:37:42,318 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-03 13:37:42,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:42,323 INFO L225 Difference]: With dead ends: 25 [2024-11-03 13:37:42,323 INFO L226 Difference]: Without dead ends: 10 [2024-11-03 13:37:42,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 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 13:37:42,328 INFO L432 NwaCegarLoop]: 14 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, 14 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 13:37:42,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 13:37:42,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-03 13:37:42,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-11-03 13:37:42,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:42,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2024-11-03 13:37:42,373 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2024-11-03 13:37:42,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:42,373 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2024-11-03 13:37:42,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:42,374 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2024-11-03 13:37:42,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-03 13:37:42,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:42,376 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 13:37:42,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0 [2024-11-03 13:37:42,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:42,579 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:42,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:42,579 INFO L85 PathProgramCache]: Analyzing trace with hash 176738447, now seen corresponding path program 1 times [2024-11-03 13:37:42,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:42,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539511906] [2024-11-03 13:37:42,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:42,580 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:42,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:42,581 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:42,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 13:37:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:42,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:42,609 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:42,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 13:37:42,639 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:42,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 13:37:42,648 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:42,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539511906] [2024-11-03 13:37:42,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1539511906] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:42,649 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:42,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 13:37:42,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141608706] [2024-11-03 13:37:42,649 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:42,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 13:37:42,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:42,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 13:37:42,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:42,652 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:42,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:42,680 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2024-11-03 13:37:42,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 13:37:42,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-03 13:37:42,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:42,681 INFO L225 Difference]: With dead ends: 16 [2024-11-03 13:37:42,681 INFO L226 Difference]: Without dead ends: 12 [2024-11-03 13:37:42,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:42,683 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 1 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:42,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 13 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 13:37:42,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-03 13:37:42,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2024-11-03 13:37:42,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:42,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-11-03 13:37:42,687 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2024-11-03 13:37:42,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:42,687 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2024-11-03 13:37:42,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:42,687 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-11-03 13:37:42,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-03 13:37:42,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:42,688 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 13:37:42,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 13:37:42,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:42,889 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:42,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:42,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1899811727, now seen corresponding path program 1 times [2024-11-03 13:37:42,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:42,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [387053586] [2024-11-03 13:37:42,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:42,890 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:42,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:42,893 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:42,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 13:37:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:42,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-03 13:37:42,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:43,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 13:37:43,022 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:43,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 13:37:43,314 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:43,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [387053586] [2024-11-03 13:37:43,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [387053586] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:37:43,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:37:43,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2024-11-03 13:37:43,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590236026] [2024-11-03 13:37:43,315 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:37:43,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-03 13:37:43,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:43,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-03 13:37:43,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-03 13:37:43,317 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:43,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:43,402 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2024-11-03 13:37:43,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 13:37:43,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-03 13:37:43,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:43,403 INFO L225 Difference]: With dead ends: 17 [2024-11-03 13:37:43,403 INFO L226 Difference]: Without dead ends: 13 [2024-11-03 13:37:43,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-03 13:37:43,405 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:43,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:43,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-03 13:37:43,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-03 13:37:43,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:43,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-03 13:37:43,409 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2024-11-03 13:37:43,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:43,409 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-11-03 13:37:43,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:43,409 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-03 13:37:43,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-03 13:37:43,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:43,410 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 13:37:43,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-03 13:37:43,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:43,612 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:43,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:43,614 INFO L85 PathProgramCache]: Analyzing trace with hash -304736301, now seen corresponding path program 2 times [2024-11-03 13:37:43,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:43,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286156941] [2024-11-03 13:37:43,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:43,614 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:43,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:43,616 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:43,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-03 13:37:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:43,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-03 13:37:43,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:43,968 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 13:37:43,968 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:49,314 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 13:37:49,315 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:49,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286156941] [2024-11-03 13:37:49,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [286156941] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:37:49,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:37:49,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2024-11-03 13:37:49,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846060359] [2024-11-03 13:37:49,316 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:37:49,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-03 13:37:49,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:49,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-03 13:37:49,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-03 13:37:49,318 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:54,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:54,913 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2024-11-03 13:37:54,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-03 13:37:54,914 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-03 13:37:54,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:54,914 INFO L225 Difference]: With dead ends: 24 [2024-11-03 13:37:54,914 INFO L226 Difference]: Without dead ends: 19 [2024-11-03 13:37:54,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-11-03 13:37:54,916 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:54,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-03 13:37:54,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-03 13:37:54,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-03 13:37:54,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:54,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2024-11-03 13:37:54,921 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 12 [2024-11-03 13:37:54,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:54,922 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2024-11-03 13:37:54,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:54,922 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2024-11-03 13:37:54,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-03 13:37:54,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:54,923 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 13:37:54,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Forceful destruction successful, exit code 0 [2024-11-03 13:37:55,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:55,124 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:55,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:55,124 INFO L85 PathProgramCache]: Analyzing trace with hash 822048505, now seen corresponding path program 3 times [2024-11-03 13:37:55,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:55,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1136442780] [2024-11-03 13:37:55,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:55,125 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:55,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:55,126 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:55,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-03 13:37:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:55,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-03 13:37:55,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:56,046 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 13:37:56,046 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:38:28,372 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 13:38:28,373 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:38:28,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1136442780] [2024-11-03 13:38:28,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1136442780] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:38:28,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:38:28,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 29 [2024-11-03 13:38:28,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800917337] [2024-11-03 13:38:28,374 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:38:28,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-03 13:38:28,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:38:28,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-03 13:38:28,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=684, Unknown=0, NotChecked=0, Total=812 [2024-11-03 13:38:28,376 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 29 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:39:11,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]