/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/soft_float_5a.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 13:37:37,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 13:37:37,548 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 13:37:37,553 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 13:37:37,553 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 13:37:37,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 13:37:37,571 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 13:37:37,571 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 13:37:37,572 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 13:37:37,572 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 13:37:37,572 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 13:37:37,572 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 13:37:37,573 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 13:37:37,575 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 13:37:37,575 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 13:37:37,576 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 13:37:37,576 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 13:37:37,576 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 13:37:37,576 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 13:37:37,576 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 13:37:37,576 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 13:37:37,577 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 13:37:37,577 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 13:37:37,577 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 13:37:37,577 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 13:37:37,577 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 13:37:37,578 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 13:37:37,578 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 13:37:37,578 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 13:37:37,578 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 13:37:37,578 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 13:37:37,579 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 13:37:37,579 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 13:37:37,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 13:37:37,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 13:37:37,581 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 13:37:37,581 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 13:37:37,581 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 13:37:37,581 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 13:37:37,582 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 13:37:37,582 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 13:37:37,582 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 13:37:37,582 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 13:37:37,582 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 13:37:37,582 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 13:37:37,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 13:37:37,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 13:37:37,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 13:37:37,782 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 13:37:37,782 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 13:37:37,783 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/soft_float_5a.c.cil.c [2024-11-03 13:37:38,920 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 13:37:39,059 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 13:37:39,059 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/soft_float_5a.c.cil.c [2024-11-03 13:37:39,065 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c8d58468/4322e42bbcf9429ab58de3b800d0bb7e/FLAG6d068ae89 [2024-11-03 13:37:39,489 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c8d58468/4322e42bbcf9429ab58de3b800d0bb7e [2024-11-03 13:37:39,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 13:37:39,492 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 13:37:39,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 13:37:39,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 13:37:39,499 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 13:37:39,499 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:37:39" (1/1) ... [2024-11-03 13:37:39,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6af93e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:39, skipping insertion in model container [2024-11-03 13:37:39,500 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:37:39" (1/1) ... [2024-11-03 13:37:39,518 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 13:37:39,639 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/soft_float_5a.c.cil.c[728,741] [2024-11-03 13:37:39,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 13:37:39,687 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 13:37:39,700 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/soft_float_5a.c.cil.c[728,741] [2024-11-03 13:37:39,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 13:37:39,742 INFO L204 MainTranslator]: Completed translation [2024-11-03 13:37:39,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:39 WrapperNode [2024-11-03 13:37:39,743 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 13:37:39,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 13:37:39,744 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 13:37:39,744 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 13:37:39,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:39" (1/1) ... [2024-11-03 13:37:39,760 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:39" (1/1) ... [2024-11-03 13:37:39,775 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 113 [2024-11-03 13:37:39,776 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 13:37:39,776 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 13:37:39,777 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 13:37:39,777 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 13:37:39,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:39" (1/1) ... [2024-11-03 13:37:39,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:39" (1/1) ... [2024-11-03 13:37:39,791 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:39" (1/1) ... [2024-11-03 13:37:39,802 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 13:37:39,803 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:39" (1/1) ... [2024-11-03 13:37:39,803 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:39" (1/1) ... [2024-11-03 13:37:39,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:39" (1/1) ... [2024-11-03 13:37:39,814 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:39" (1/1) ... [2024-11-03 13:37:39,815 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:39" (1/1) ... [2024-11-03 13:37:39,816 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:39" (1/1) ... [2024-11-03 13:37:39,818 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 13:37:39,818 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 13:37:39,819 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 13:37:39,819 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 13:37:39,819 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:39" (1/1) ... [2024-11-03 13:37:39,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 13:37:39,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 13:37:39,843 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 13:37:39,845 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 13:37:39,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 13:37:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 13:37:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-03 13:37:39,863 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-03 13:37:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 13:37:39,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 13:37:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-03 13:37:39,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-03 13:37:39,938 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 13:37:39,940 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 13:37:40,139 INFO L? ?]: Removed 44 outVars from TransFormulas that were not future-live. [2024-11-03 13:37:40,139 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 13:37:40,148 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 13:37:40,148 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-03 13:37:40,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:37:40 BoogieIcfgContainer [2024-11-03 13:37:40,150 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 13:37:40,152 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 13:37:40,152 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 13:37:40,154 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 13:37:40,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:37:39" (1/3) ... [2024-11-03 13:37:40,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57b93dcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:37:40, skipping insertion in model container [2024-11-03 13:37:40,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:39" (2/3) ... [2024-11-03 13:37:40,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57b93dcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:37:40, skipping insertion in model container [2024-11-03 13:37:40,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:37:40" (3/3) ... [2024-11-03 13:37:40,156 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_5a.c.cil.c [2024-11-03 13:37:40,168 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 13:37:40,168 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 13:37:40,207 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 13:37:40,212 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;@27d55789, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 13:37:40,212 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 13:37:40,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 43 states have (on average 1.558139534883721) internal successors, (67), 45 states have internal predecessors, (67), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-03 13:37:40,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-03 13:37:40,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:40,220 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 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 13:37:40,221 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:40,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:40,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1428146956, now seen corresponding path program 1 times [2024-11-03 13:37:40,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:40,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [617133639] [2024-11-03 13:37:40,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:40,231 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:40,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:40,233 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 13:37:40,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 13:37:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:40,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 13:37:40,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:40,364 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-03 13:37:40,364 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:40,425 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-03 13:37:40,425 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:40,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [617133639] [2024-11-03 13:37:40,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [617133639] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 13:37:40,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 13:37:40,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-03 13:37:40,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142456799] [2024-11-03 13:37:40,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:40,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 13:37:40,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:40,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 13:37:40,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-03 13:37:40,451 INFO L87 Difference]: Start difference. First operand has 52 states, 43 states have (on average 1.558139534883721) internal successors, (67), 45 states have internal predecessors, (67), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-03 13:37:40,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:40,549 INFO L93 Difference]: Finished difference Result 115 states and 181 transitions. [2024-11-03 13:37:40,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 13:37:40,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2024-11-03 13:37:40,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:40,556 INFO L225 Difference]: With dead ends: 115 [2024-11-03 13:37:40,557 INFO L226 Difference]: Without dead ends: 60 [2024-11-03 13:37:40,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-03 13:37:40,563 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 12 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:40,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 166 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:40,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-03 13:37:40,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 51. [2024-11-03 13:37:40,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 43 states have internal predecessors, (60), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-03 13:37:40,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 71 transitions. [2024-11-03 13:37:40,598 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 71 transitions. Word has length 42 [2024-11-03 13:37:40,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:40,600 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 71 transitions. [2024-11-03 13:37:40,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-03 13:37:40,600 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 71 transitions. [2024-11-03 13:37:40,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-03 13:37:40,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:40,602 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 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 13:37:40,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0 [2024-11-03 13:37:40,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:40,802 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:40,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:40,803 INFO L85 PathProgramCache]: Analyzing trace with hash -649725496, now seen corresponding path program 1 times [2024-11-03 13:37:40,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:40,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248907404] [2024-11-03 13:37:40,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:40,804 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:40,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:40,805 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 13:37:40,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 13:37:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:40,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 13:37:40,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:40,882 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-03 13:37:40,882 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:40,957 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-03 13:37:40,957 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:40,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248907404] [2024-11-03 13:37:40,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1248907404] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 13:37:40,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 13:37:40,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-03 13:37:40,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136145353] [2024-11-03 13:37:40,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:40,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 13:37:40,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:40,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 13:37:40,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-03 13:37:40,960 INFO L87 Difference]: Start difference. First operand 51 states and 71 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-03 13:37:41,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:41,013 INFO L93 Difference]: Finished difference Result 104 states and 147 transitions. [2024-11-03 13:37:41,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 13:37:41,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 45 [2024-11-03 13:37:41,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:41,015 INFO L225 Difference]: With dead ends: 104 [2024-11-03 13:37:41,015 INFO L226 Difference]: Without dead ends: 60 [2024-11-03 13:37:41,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-03 13:37:41,016 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 7 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:41,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 160 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 13:37:41,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-03 13:37:41,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2024-11-03 13:37:41,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 48 states have internal predecessors, (65), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-03 13:37:41,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2024-11-03 13:37:41,028 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 45 [2024-11-03 13:37:41,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:41,028 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2024-11-03 13:37:41,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-03 13:37:41,029 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2024-11-03 13:37:41,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-03 13:37:41,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:41,032 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 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 13:37:41,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 13:37:41,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:41,233 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:41,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:41,234 INFO L85 PathProgramCache]: Analyzing trace with hash 996548609, now seen corresponding path program 1 times [2024-11-03 13:37:41,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:41,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919720386] [2024-11-03 13:37:41,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:41,234 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:41,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:41,236 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 13:37:41,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 13:37:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:41,268 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 13:37:41,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:41,301 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-03 13:37:41,302 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:41,368 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-03 13:37:41,369 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:41,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919720386] [2024-11-03 13:37:41,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [919720386] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 13:37:41,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 13:37:41,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-03 13:37:41,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570466161] [2024-11-03 13:37:41,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:41,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 13:37:41,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:41,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 13:37:41,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-03 13:37:41,371 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-03 13:37:41,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:41,438 INFO L93 Difference]: Finished difference Result 116 states and 164 transitions. [2024-11-03 13:37:41,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 13:37:41,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2024-11-03 13:37:41,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:41,440 INFO L225 Difference]: With dead ends: 116 [2024-11-03 13:37:41,440 INFO L226 Difference]: Without dead ends: 67 [2024-11-03 13:37:41,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-03 13:37:41,442 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 16 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:41,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 165 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 13:37:41,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-03 13:37:41,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 57. [2024-11-03 13:37:41,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 48 states have (on average 1.375) internal successors, (66), 49 states have internal predecessors, (66), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-03 13:37:41,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 79 transitions. [2024-11-03 13:37:41,454 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 79 transitions. Word has length 46 [2024-11-03 13:37:41,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:41,454 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 79 transitions. [2024-11-03 13:37:41,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-03 13:37:41,455 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 79 transitions. [2024-11-03 13:37:41,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-03 13:37:41,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:41,456 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:41,458 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-03 13:37:41,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:41,657 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:41,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:41,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1306691689, now seen corresponding path program 1 times [2024-11-03 13:37:41,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:41,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392421979] [2024-11-03 13:37:41,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:41,658 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:41,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:41,659 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 13:37:41,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-03 13:37:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:41,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 13:37:41,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:41,721 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-03 13:37:41,721 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:41,828 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-03 13:37:41,828 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:41,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392421979] [2024-11-03 13:37:41,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1392421979] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 13:37:41,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 13:37:41,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-03 13:37:41,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434302521] [2024-11-03 13:37:41,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:41,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-03 13:37:41,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:41,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-03 13:37:41,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-03 13:37:41,830 INFO L87 Difference]: Start difference. First operand 57 states and 79 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-03 13:37:41,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:41,915 INFO L93 Difference]: Finished difference Result 124 states and 175 transitions. [2024-11-03 13:37:41,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 13:37:41,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2024-11-03 13:37:41,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:41,918 INFO L225 Difference]: With dead ends: 124 [2024-11-03 13:37:41,918 INFO L226 Difference]: Without dead ends: 74 [2024-11-03 13:37:41,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-03 13:37:41,919 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 14 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:41,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 220 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:41,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-03 13:37:41,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 58. [2024-11-03 13:37:41,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 50 states have internal predecessors, (68), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-03 13:37:41,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 81 transitions. [2024-11-03 13:37:41,928 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 81 transitions. Word has length 47 [2024-11-03 13:37:41,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:41,929 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 81 transitions. [2024-11-03 13:37:41,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-03 13:37:41,929 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 81 transitions. [2024-11-03 13:37:41,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-03 13:37:41,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:41,932 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 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 13:37:41,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Forceful destruction successful, exit code 0 [2024-11-03 13:37:42,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:42,133 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:42,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:42,133 INFO L85 PathProgramCache]: Analyzing trace with hash 164215198, now seen corresponding path program 1 times [2024-11-03 13:37:42,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:42,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918605542] [2024-11-03 13:37:42,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:42,134 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:42,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:42,136 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 13:37:42,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-03 13:37:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:42,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 13:37:42,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:42,257 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-03 13:37:42,258 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:42,321 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-03 13:37:42,321 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:42,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918605542] [2024-11-03 13:37:42,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1918605542] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:37:42,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:37:42,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2024-11-03 13:37:42,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779778967] [2024-11-03 13:37:42,322 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:37:42,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 13:37:42,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:42,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 13:37:42,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-03 13:37:42,324 INFO L87 Difference]: Start difference. First operand 58 states and 81 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-03 13:37:42,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:42,387 INFO L93 Difference]: Finished difference Result 90 states and 126 transitions. [2024-11-03 13:37:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-03 13:37:42,388 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2024-11-03 13:37:42,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:42,388 INFO L225 Difference]: With dead ends: 90 [2024-11-03 13:37:42,389 INFO L226 Difference]: Without dead ends: 69 [2024-11-03 13:37:42,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-03 13:37:42,389 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 59 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:42,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 303 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:42,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-03 13:37:42,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2024-11-03 13:37:42,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 58 states have internal predecessors, (73), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-03 13:37:42,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 91 transitions. [2024-11-03 13:37:42,398 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 91 transitions. Word has length 48 [2024-11-03 13:37:42,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:42,398 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 91 transitions. [2024-11-03 13:37:42,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-03 13:37:42,398 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 91 transitions. [2024-11-03 13:37:42,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-03 13:37:42,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:42,399 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:42,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Ended with exit code 0 [2024-11-03 13:37:42,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:42,600 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:42,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:42,600 INFO L85 PathProgramCache]: Analyzing trace with hash -206767808, now seen corresponding path program 1 times [2024-11-03 13:37:42,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:42,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744061646] [2024-11-03 13:37:42,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:42,600 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:42,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:42,602 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:42,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Waiting until timeout for monitored process [2024-11-03 13:37:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:42,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-03 13:37:42,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:42,717 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-03 13:37:42,717 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:42,789 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-03 13:37:42,789 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:42,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744061646] [2024-11-03 13:37:42,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [744061646] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:42,789 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:42,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 12 [2024-11-03 13:37:42,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625496450] [2024-11-03 13:37:42,790 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:42,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-03 13:37:42,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:42,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-03 13:37:42,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-03 13:37:42,791 INFO L87 Difference]: Start difference. First operand 67 states and 91 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 9 states have internal predecessors, (41), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 13:37:42,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:42,892 INFO L93 Difference]: Finished difference Result 102 states and 141 transitions. [2024-11-03 13:37:42,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-03 13:37:42,893 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 9 states have internal predecessors, (41), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2024-11-03 13:37:42,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:42,894 INFO L225 Difference]: With dead ends: 102 [2024-11-03 13:37:42,894 INFO L226 Difference]: Without dead ends: 84 [2024-11-03 13:37:42,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-03 13:37:42,896 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 6 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:42,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 524 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:42,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-03 13:37:42,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 79. [2024-11-03 13:37:42,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 67 states have (on average 1.2537313432835822) internal successors, (84), 68 states have internal predecessors, (84), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-03 13:37:42,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 108 transitions. [2024-11-03 13:37:42,907 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 108 transitions. Word has length 52 [2024-11-03 13:37:42,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:42,907 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 108 transitions. [2024-11-03 13:37:42,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 9 states have internal predecessors, (41), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 13:37:42,907 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 108 transitions. [2024-11-03 13:37:42,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-03 13:37:42,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:42,910 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:42,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Ended with exit code 0 [2024-11-03 13:37:43,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:43,112 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:43,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:43,113 INFO L85 PathProgramCache]: Analyzing trace with hash 51397630, now seen corresponding path program 1 times [2024-11-03 13:37:43,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:43,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [461628428] [2024-11-03 13:37:43,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:43,113 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:43,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:43,115 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:43,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Waiting until timeout for monitored process [2024-11-03 13:37:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:43,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 13:37:43,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:43,247 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-03 13:37:43,247 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:43,308 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-03 13:37:43,309 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:43,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [461628428] [2024-11-03 13:37:43,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [461628428] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 13:37:43,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 13:37:43,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-03 13:37:43,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007130831] [2024-11-03 13:37:43,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:43,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-03 13:37:43,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:43,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-03 13:37:43,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-03 13:37:43,310 INFO L87 Difference]: Start difference. First operand 79 states and 108 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-03 13:37:43,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:43,354 INFO L93 Difference]: Finished difference Result 90 states and 119 transitions. [2024-11-03 13:37:43,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 13:37:43,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 52 [2024-11-03 13:37:43,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:43,356 INFO L225 Difference]: With dead ends: 90 [2024-11-03 13:37:43,356 INFO L226 Difference]: Without dead ends: 84 [2024-11-03 13:37:43,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-03 13:37:43,357 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:43,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 210 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 13:37:43,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-03 13:37:43,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-03 13:37:43,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 73 states have internal predecessors, (89), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-03 13:37:43,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 113 transitions. [2024-11-03 13:37:43,369 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 113 transitions. Word has length 52 [2024-11-03 13:37:43,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:43,370 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 113 transitions. [2024-11-03 13:37:43,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-03 13:37:43,370 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 113 transitions. [2024-11-03 13:37:43,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-03 13:37:43,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:43,372 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:43,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Ended with exit code 0 [2024-11-03 13:37:43,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:43,573 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:43,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:43,573 INFO L85 PathProgramCache]: Analyzing trace with hash 108655932, now seen corresponding path program 1 times [2024-11-03 13:37:43,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:43,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140792086] [2024-11-03 13:37:43,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:43,574 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:43,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:43,575 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:43,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (9)] Waiting until timeout for monitored process [2024-11-03 13:37:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:43,605 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 13:37:43,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:43,633 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-03 13:37:43,634 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:43,664 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-03 13:37:43,665 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:43,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1140792086] [2024-11-03 13:37:43,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1140792086] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:43,665 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:43,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2024-11-03 13:37:43,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227665124] [2024-11-03 13:37:43,665 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:43,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 13:37:43,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:43,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 13:37:43,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-03 13:37:43,666 INFO L87 Difference]: Start difference. First operand 84 states and 113 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-03 13:37:43,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:43,686 INFO L93 Difference]: Finished difference Result 90 states and 118 transitions. [2024-11-03 13:37:43,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 13:37:43,686 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 52 [2024-11-03 13:37:43,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:43,687 INFO L225 Difference]: With dead ends: 90 [2024-11-03 13:37:43,687 INFO L226 Difference]: Without dead ends: 72 [2024-11-03 13:37:43,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-03 13:37:43,688 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 2 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:43,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 299 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 13:37:43,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-03 13:37:43,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-03 13:37:43,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 60 states have (on average 1.2333333333333334) internal successors, (74), 62 states have internal predecessors, (74), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-03 13:37:43,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 95 transitions. [2024-11-03 13:37:43,694 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 95 transitions. Word has length 52 [2024-11-03 13:37:43,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:43,694 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 95 transitions. [2024-11-03 13:37:43,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-03 13:37:43,694 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 95 transitions. [2024-11-03 13:37:43,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-03 13:37:43,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:43,695 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:43,699 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (9)] Ended with exit code 0 [2024-11-03 13:37:43,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:43,895 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:43,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:43,895 INFO L85 PathProgramCache]: Analyzing trace with hash -752910780, now seen corresponding path program 1 times [2024-11-03 13:37:43,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:43,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143428726] [2024-11-03 13:37:43,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:43,896 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:43,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:43,897 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:43,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (10)] Waiting until timeout for monitored process [2024-11-03 13:37:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:43,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 13:37:43,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:43,970 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-03 13:37:43,970 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:44,006 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-03 13:37:44,006 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:44,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143428726] [2024-11-03 13:37:44,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1143428726] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:37:44,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:37:44,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2024-11-03 13:37:44,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671120926] [2024-11-03 13:37:44,007 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:37:44,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 13:37:44,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:44,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 13:37:44,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-03 13:37:44,008 INFO L87 Difference]: Start difference. First operand 72 states and 95 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-03 13:37:44,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:44,057 INFO L93 Difference]: Finished difference Result 97 states and 125 transitions. [2024-11-03 13:37:44,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 13:37:44,057 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 57 [2024-11-03 13:37:44,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:44,058 INFO L225 Difference]: With dead ends: 97 [2024-11-03 13:37:44,058 INFO L226 Difference]: Without dead ends: 70 [2024-11-03 13:37:44,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-03 13:37:44,059 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 2 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:44,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 380 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 13:37:44,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-03 13:37:44,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-11-03 13:37:44,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 61 states have internal predecessors, (73), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-03 13:37:44,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 88 transitions. [2024-11-03 13:37:44,065 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 88 transitions. Word has length 57 [2024-11-03 13:37:44,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:44,065 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 88 transitions. [2024-11-03 13:37:44,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-03 13:37:44,065 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 88 transitions. [2024-11-03 13:37:44,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-03 13:37:44,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:44,066 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:44,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (10)] Ended with exit code 0 [2024-11-03 13:37:44,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:44,267 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:44,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:44,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1462120654, now seen corresponding path program 1 times [2024-11-03 13:37:44,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:44,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [102195638] [2024-11-03 13:37:44,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:44,268 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:44,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:44,269 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:44,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (11)] Waiting until timeout for monitored process [2024-11-03 13:37:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:44,295 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-03 13:37:44,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:44,327 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-03 13:37:44,327 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:44,355 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-03 13:37:44,356 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:44,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [102195638] [2024-11-03 13:37:44,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [102195638] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:44,356 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:44,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2024-11-03 13:37:44,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191608870] [2024-11-03 13:37:44,356 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:44,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-03 13:37:44,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:44,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-03 13:37:44,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-03 13:37:44,357 INFO L87 Difference]: Start difference. First operand 70 states and 88 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-03 13:37:44,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:44,390 INFO L93 Difference]: Finished difference Result 88 states and 109 transitions. [2024-11-03 13:37:44,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-03 13:37:44,391 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 57 [2024-11-03 13:37:44,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:44,391 INFO L225 Difference]: With dead ends: 88 [2024-11-03 13:37:44,391 INFO L226 Difference]: Without dead ends: 61 [2024-11-03 13:37:44,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-03 13:37:44,392 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:44,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 313 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 13:37:44,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-03 13:37:44,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-03 13:37:44,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 53 states have internal predecessors, (64), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-03 13:37:44,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2024-11-03 13:37:44,396 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 57 [2024-11-03 13:37:44,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:44,396 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2024-11-03 13:37:44,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-03 13:37:44,396 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2024-11-03 13:37:44,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-03 13:37:44,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:44,397 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:44,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (11)] Forceful destruction successful, exit code 0 [2024-11-03 13:37:44,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:44,598 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:44,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:44,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1139809543, now seen corresponding path program 2 times [2024-11-03 13:37:44,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:44,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137945704] [2024-11-03 13:37:44,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:44,599 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:44,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:44,600 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:44,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (12)] Waiting until timeout for monitored process [2024-11-03 13:37:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:44,628 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 13:37:44,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:44,648 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-03 13:37:44,648 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:44,680 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-03 13:37:44,680 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:44,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137945704] [2024-11-03 13:37:44,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [137945704] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:44,680 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:44,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-03 13:37:44,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426315410] [2024-11-03 13:37:44,680 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:44,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 13:37:44,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:44,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 13:37:44,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-03 13:37:44,681 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-03 13:37:44,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:44,692 INFO L93 Difference]: Finished difference Result 82 states and 101 transitions. [2024-11-03 13:37:44,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 13:37:44,693 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 61 [2024-11-03 13:37:44,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:44,693 INFO L225 Difference]: With dead ends: 82 [2024-11-03 13:37:44,693 INFO L226 Difference]: Without dead ends: 61 [2024-11-03 13:37:44,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-03 13:37:44,694 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 10 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:44,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 285 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 13:37:44,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-03 13:37:44,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-03 13:37:44,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 53 states have internal predecessors, (63), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-03 13:37:44,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 75 transitions. [2024-11-03 13:37:44,698 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 75 transitions. Word has length 61 [2024-11-03 13:37:44,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:44,699 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 75 transitions. [2024-11-03 13:37:44,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-03 13:37:44,699 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 75 transitions. [2024-11-03 13:37:44,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-03 13:37:44,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:44,699 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:44,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (12)] Ended with exit code 0 [2024-11-03 13:37:44,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:44,900 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:44,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:44,900 INFO L85 PathProgramCache]: Analyzing trace with hash 2134089399, now seen corresponding path program 1 times [2024-11-03 13:37:44,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:44,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747103490] [2024-11-03 13:37:44,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:44,901 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:44,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:44,902 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:44,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (13)] Waiting until timeout for monitored process [2024-11-03 13:37:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:44,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 13:37:44,940 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:44,970 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-03 13:37:44,971 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:45,046 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-03 13:37:45,046 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:45,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747103490] [2024-11-03 13:37:45,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [747103490] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:37:45,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:37:45,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-03 13:37:45,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143136368] [2024-11-03 13:37:45,047 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:37:45,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 13:37:45,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:45,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 13:37:45,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-03 13:37:45,048 INFO L87 Difference]: Start difference. First operand 61 states and 75 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-03 13:37:45,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:45,114 INFO L93 Difference]: Finished difference Result 139 states and 172 transitions. [2024-11-03 13:37:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-03 13:37:45,115 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2024-11-03 13:37:45,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:45,115 INFO L225 Difference]: With dead ends: 139 [2024-11-03 13:37:45,115 INFO L226 Difference]: Without dead ends: 79 [2024-11-03 13:37:45,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-03 13:37:45,116 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 27 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:45,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 181 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 13:37:45,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-03 13:37:45,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 69. [2024-11-03 13:37:45,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 61 states have internal predecessors, (73), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-03 13:37:45,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 85 transitions. [2024-11-03 13:37:45,120 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 85 transitions. Word has length 61 [2024-11-03 13:37:45,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:45,120 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 85 transitions. [2024-11-03 13:37:45,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-03 13:37:45,121 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 85 transitions. [2024-11-03 13:37:45,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-03 13:37:45,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:45,121 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:45,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (13)] Ended with exit code 0 [2024-11-03 13:37:45,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:45,322 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:45,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:45,323 INFO L85 PathProgramCache]: Analyzing trace with hash -221361354, now seen corresponding path program 1 times [2024-11-03 13:37:45,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:45,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [221411193] [2024-11-03 13:37:45,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:45,323 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:45,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:45,324 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:45,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (14)] Waiting until timeout for monitored process [2024-11-03 13:37:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:45,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 13:37:45,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:45,385 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-03 13:37:45,385 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:45,477 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-03 13:37:45,477 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:45,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [221411193] [2024-11-03 13:37:45,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [221411193] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:37:45,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:37:45,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-03 13:37:45,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761152525] [2024-11-03 13:37:45,477 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:37:45,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 13:37:45,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:45,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 13:37:45,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-03 13:37:45,478 INFO L87 Difference]: Start difference. First operand 69 states and 85 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-03 13:37:45,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:45,658 INFO L93 Difference]: Finished difference Result 154 states and 193 transitions. [2024-11-03 13:37:45,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-03 13:37:45,659 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2024-11-03 13:37:45,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:45,659 INFO L225 Difference]: With dead ends: 154 [2024-11-03 13:37:45,659 INFO L226 Difference]: Without dead ends: 92 [2024-11-03 13:37:45,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=129, Unknown=0, NotChecked=0, Total=210 [2024-11-03 13:37:45,660 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 39 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:45,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 335 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:45,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-03 13:37:45,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 73. [2024-11-03 13:37:45,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 63 states have (on average 1.2698412698412698) internal successors, (80), 65 states have internal predecessors, (80), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-03 13:37:45,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 92 transitions. [2024-11-03 13:37:45,667 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 92 transitions. Word has length 63 [2024-11-03 13:37:45,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:45,667 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 92 transitions. [2024-11-03 13:37:45,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-03 13:37:45,667 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 92 transitions. [2024-11-03 13:37:45,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-03 13:37:45,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:45,668 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:45,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (14)] Ended with exit code 0 [2024-11-03 13:37:45,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:45,868 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:45,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:45,869 INFO L85 PathProgramCache]: Analyzing trace with hash -96427443, now seen corresponding path program 2 times [2024-11-03 13:37:45,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:45,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073360763] [2024-11-03 13:37:45,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:45,869 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:45,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:45,870 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:45,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (15)] Waiting until timeout for monitored process [2024-11-03 13:37:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:45,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-03 13:37:45,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:45,971 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 26 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-03 13:37:45,971 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:46,146 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 36 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-03 13:37:46,146 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:46,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1073360763] [2024-11-03 13:37:46,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1073360763] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:37:46,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:37:46,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-03 13:37:46,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225181727] [2024-11-03 13:37:46,147 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:37:46,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-03 13:37:46,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:46,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-03 13:37:46,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-03 13:37:46,148 INFO L87 Difference]: Start difference. First operand 73 states and 92 transitions. Second operand has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-03 13:37:46,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:46,400 INFO L93 Difference]: Finished difference Result 174 states and 221 transitions. [2024-11-03 13:37:46,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-03 13:37:46,400 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2024-11-03 13:37:46,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:46,401 INFO L225 Difference]: With dead ends: 174 [2024-11-03 13:37:46,401 INFO L226 Difference]: Without dead ends: 102 [2024-11-03 13:37:46,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=189, Unknown=0, NotChecked=0, Total=306 [2024-11-03 13:37:46,402 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 65 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:46,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 429 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:46,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-03 13:37:46,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 87. [2024-11-03 13:37:46,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 77 states have (on average 1.2597402597402598) internal successors, (97), 79 states have internal predecessors, (97), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-03 13:37:46,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 109 transitions. [2024-11-03 13:37:46,408 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 109 transitions. Word has length 70 [2024-11-03 13:37:46,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:46,408 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 109 transitions. [2024-11-03 13:37:46,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-03 13:37:46,409 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 109 transitions. [2024-11-03 13:37:46,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-03 13:37:46,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:46,410 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:46,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (15)] Ended with exit code 0 [2024-11-03 13:37:46,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:46,612 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:46,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:46,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1216230474, now seen corresponding path program 2 times [2024-11-03 13:37:46,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:46,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465969763] [2024-11-03 13:37:46,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:46,612 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:46,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:46,614 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:46,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (16)] Waiting until timeout for monitored process [2024-11-03 13:37:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:46,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 13:37:46,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:46,730 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 28 proven. 45 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-03 13:37:46,730 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:46,966 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 4 proven. 57 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-03 13:37:46,966 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:46,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465969763] [2024-11-03 13:37:46,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [465969763] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:37:46,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:37:46,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-03 13:37:46,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227241969] [2024-11-03 13:37:46,967 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:37:46,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-03 13:37:46,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:46,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-03 13:37:46,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2024-11-03 13:37:46,968 INFO L87 Difference]: Start difference. First operand 87 states and 109 transitions. Second operand has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 18 states have internal predecessors, (87), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-03 13:37:47,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:47,530 INFO L93 Difference]: Finished difference Result 206 states and 261 transitions. [2024-11-03 13:37:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-03 13:37:47,531 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 18 states have internal predecessors, (87), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 75 [2024-11-03 13:37:47,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:47,532 INFO L225 Difference]: With dead ends: 206 [2024-11-03 13:37:47,532 INFO L226 Difference]: Without dead ends: 126 [2024-11-03 13:37:47,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=325, Invalid=605, Unknown=0, NotChecked=0, Total=930 [2024-11-03 13:37:47,533 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 117 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:47,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 494 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 13:37:47,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-03 13:37:47,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 97. [2024-11-03 13:37:47,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 87 states have (on average 1.3103448275862069) internal successors, (114), 89 states have internal predecessors, (114), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-03 13:37:47,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 126 transitions. [2024-11-03 13:37:47,543 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 126 transitions. Word has length 75 [2024-11-03 13:37:47,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:47,543 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 126 transitions. [2024-11-03 13:37:47,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 18 states have internal predecessors, (87), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-03 13:37:47,543 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 126 transitions. [2024-11-03 13:37:47,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-03 13:37:47,544 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:47,544 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:47,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (16)] Ended with exit code 0 [2024-11-03 13:37:47,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:47,745 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:47,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:47,745 INFO L85 PathProgramCache]: Analyzing trace with hash -805908083, now seen corresponding path program 3 times [2024-11-03 13:37:47,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:47,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108320591] [2024-11-03 13:37:47,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:47,745 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:47,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:47,746 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:47,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (17)] Waiting until timeout for monitored process [2024-11-03 13:37:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:47,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-03 13:37:47,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:47,960 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 26 proven. 155 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-03 13:37:47,960 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:48,468 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 4 proven. 165 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-03 13:37:48,468 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:48,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108320591] [2024-11-03 13:37:48,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2108320591] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:37:48,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:37:48,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-03 13:37:48,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581381461] [2024-11-03 13:37:48,469 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:37:48,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-03 13:37:48,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:48,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-03 13:37:48,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-03 13:37:48,470 INFO L87 Difference]: Start difference. First operand 97 states and 126 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-03 13:37:49,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:49,633 INFO L93 Difference]: Finished difference Result 246 states and 321 transitions. [2024-11-03 13:37:49,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-03 13:37:49,634 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 88 [2024-11-03 13:37:49,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:49,635 INFO L225 Difference]: With dead ends: 246 [2024-11-03 13:37:49,635 INFO L226 Difference]: Without dead ends: 150 [2024-11-03 13:37:49,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=453, Invalid=807, Unknown=0, NotChecked=0, Total=1260 [2024-11-03 13:37:49,636 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 208 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:49,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 1061 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-03 13:37:49,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-03 13:37:49,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 123. [2024-11-03 13:37:49,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 113 states have (on average 1.2831858407079646) internal successors, (145), 115 states have internal predecessors, (145), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-03 13:37:49,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 157 transitions. [2024-11-03 13:37:49,644 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 157 transitions. Word has length 88 [2024-11-03 13:37:49,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:49,644 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 157 transitions. [2024-11-03 13:37:49,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-03 13:37:49,645 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 157 transitions. [2024-11-03 13:37:49,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-03 13:37:49,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:49,645 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:49,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (17)] Ended with exit code 0 [2024-11-03 13:37:49,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:49,846 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:49,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:49,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1496150858, now seen corresponding path program 3 times [2024-11-03 13:37:49,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:49,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [575124674] [2024-11-03 13:37:49,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:49,847 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:49,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:49,849 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:49,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (18)] Waiting until timeout for monitored process [2024-11-03 13:37:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:49,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-03 13:37:49,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:50,147 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 28 proven. 273 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-03 13:37:50,147 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:50,709 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 4 proven. 285 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-03 13:37:50,710 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:50,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [575124674] [2024-11-03 13:37:50,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [575124674] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:37:50,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:37:50,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2024-11-03 13:37:50,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299411329] [2024-11-03 13:37:50,710 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:37:50,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-03 13:37:50,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:50,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-03 13:37:50,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-03 13:37:50,712 INFO L87 Difference]: Start difference. First operand 123 states and 157 transitions. Second operand has 34 states, 34 states have (on average 3.9705882352941178) internal successors, (135), 34 states have internal predecessors, (135), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-03 13:37:51,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:51,899 INFO L93 Difference]: Finished difference Result 274 states and 349 transitions. [2024-11-03 13:37:51,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-03 13:37:51,900 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.9705882352941178) internal successors, (135), 34 states have internal predecessors, (135), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 99 [2024-11-03 13:37:51,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:51,901 INFO L225 Difference]: With dead ends: 274 [2024-11-03 13:37:51,901 INFO L226 Difference]: Without dead ends: 158 [2024-11-03 13:37:51,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=936, Invalid=2256, Unknown=0, NotChecked=0, Total=3192 [2024-11-03 13:37:51,902 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 94 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:51,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 975 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-03 13:37:51,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-03 13:37:51,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 127. [2024-11-03 13:37:51,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 117 states have (on average 1.2991452991452992) internal successors, (152), 119 states have internal predecessors, (152), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-03 13:37:51,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 164 transitions. [2024-11-03 13:37:51,909 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 164 transitions. Word has length 99 [2024-11-03 13:37:51,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:51,909 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 164 transitions. [2024-11-03 13:37:51,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.9705882352941178) internal successors, (135), 34 states have internal predecessors, (135), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-03 13:37:51,909 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 164 transitions. [2024-11-03 13:37:51,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-03 13:37:51,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:51,910 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:51,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (18)] Ended with exit code 0 [2024-11-03 13:37:52,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:52,112 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:52,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:52,112 INFO L85 PathProgramCache]: Analyzing trace with hash 53952525, now seen corresponding path program 4 times [2024-11-03 13:37:52,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:52,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286011444] [2024-11-03 13:37:52,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:52,113 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:52,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:52,114 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:52,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (19)] Waiting until timeout for monitored process [2024-11-03 13:37:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:52,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-03 13:37:52,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:52,658 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 26 proven. 737 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-03 13:37:52,658 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:54,285 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 4 proven. 747 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-03 13:37:54,285 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:54,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286011444] [2024-11-03 13:37:54,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [286011444] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:37:54,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:37:54,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-11-03 13:37:54,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922358177] [2024-11-03 13:37:54,285 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:37:54,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-03 13:37:54,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:54,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-03 13:37:54,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=673, Invalid=1777, Unknown=0, NotChecked=0, Total=2450 [2024-11-03 13:37:54,287 INFO L87 Difference]: Start difference. First operand 127 states and 164 transitions. Second operand has 50 states, 50 states have (on average 3.7) internal successors, (185), 50 states have internal predecessors, (185), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-03 13:38:00,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:38:00,445 INFO L93 Difference]: Finished difference Result 372 states and 491 transitions. [2024-11-03 13:38:00,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-03 13:38:00,445 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 3.7) internal successors, (185), 50 states have internal predecessors, (185), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 124 [2024-11-03 13:38:00,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:38:00,447 INFO L225 Difference]: With dead ends: 372 [2024-11-03 13:38:00,447 INFO L226 Difference]: Without dead ends: 246 [2024-11-03 13:38:00,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=1773, Invalid=3339, Unknown=0, NotChecked=0, Total=5112 [2024-11-03 13:38:00,448 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 606 mSDsluCounter, 2900 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 3021 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-03 13:38:00,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 3021 Invalid, 1543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1491 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-03 13:38:00,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-03 13:38:00,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 195. [2024-11-03 13:38:00,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 185 states have (on average 1.3027027027027027) internal successors, (241), 187 states have internal predecessors, (241), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-03 13:38:00,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 253 transitions. [2024-11-03 13:38:00,460 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 253 transitions. Word has length 124 [2024-11-03 13:38:00,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:38:00,460 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 253 transitions. [2024-11-03 13:38:00,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.7) internal successors, (185), 50 states have internal predecessors, (185), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-03 13:38:00,461 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 253 transitions. [2024-11-03 13:38:00,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-03 13:38:00,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:38:00,462 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 23, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:00,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (19)] Ended with exit code 0 [2024-11-03 13:38:00,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:38:00,663 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:38:00,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:38:00,663 INFO L85 PathProgramCache]: Analyzing trace with hash 147310070, now seen corresponding path program 4 times [2024-11-03 13:38:00,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:38:00,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [575080864] [2024-11-03 13:38:00,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:38:00,664 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:38:00,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:38:00,665 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:38:00,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (20)] Waiting until timeout for monitored process [2024-11-03 13:38:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:38:00,705 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-03 13:38:00,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:38:02,158 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_base2flt_~e_411 (_ BitVec 32)) (v_base2flt_~m_425 (_ BitVec 32))) (and (= c_base2flt_~__retres4~0 (bvor (bvand v_base2flt_~m_425 (_ bv4278190079 32)) (bvshl (bvadd (_ bv128 32) v_base2flt_~e_411) (_ bv24 32)))) (not (bvuge v_base2flt_~m_425 (_ bv33554432 32))))) is different from true [2024-11-03 13:38:03,500 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_base2flt_~e_411 (_ BitVec 32)) (v_base2flt_~m_425 (_ BitVec 32))) (and (= (bvor (bvand v_base2flt_~m_425 (_ bv4278190079 32)) (bvshl (bvadd (_ bv128 32) v_base2flt_~e_411) (_ bv24 32))) |c_base2flt_#res|) (not (bvuge v_base2flt_~m_425 (_ bv33554432 32))))) is different from true [2024-11-03 13:38:09,281 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 849 trivial. 3 not checked. [2024-11-03 13:38:09,281 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:38:21,521 WARN L873 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ BitVec 32))) (or (not (bvult |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| |c_base2flt_#res|)) (exists ((v_base2flt_~m_431 (_ BitVec 32)) (v_base2flt_~e_417 (_ BitVec 32))) (let ((.cse0 (bvor (bvand v_base2flt_~m_431 (_ bv4278190079 32)) (bvshl (bvadd (_ bv128 32) v_base2flt_~e_417) (_ bv24 32))))) (and (not (bvugt .cse0 |v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13|)) (bvult |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse0) (not (bvuge v_base2flt_~m_431 (_ bv33554432 32)))))) (bvugt |c_base2flt_#res| |v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13|))) is different from true [2024-11-03 13:38:25,589 WARN L873 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ BitVec 32))) (or (not (bvult |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| c_base2flt_~__retres4~0)) (exists ((v_base2flt_~m_431 (_ BitVec 32)) (v_base2flt_~e_417 (_ BitVec 32))) (let ((.cse0 (bvor (bvand v_base2flt_~m_431 (_ bv4278190079 32)) (bvshl (bvadd (_ bv128 32) v_base2flt_~e_417) (_ bv24 32))))) (and (not (bvugt .cse0 |v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13|)) (bvult |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse0) (not (bvuge v_base2flt_~m_431 (_ bv33554432 32)))))) (bvugt c_base2flt_~__retres4~0 |v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13|))) is different from true [2024-11-03 13:38:29,642 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ BitVec 32)) (base2flt_~e (_ BitVec 32))) (let ((.cse0 (bvor (bvand c_base2flt_~m (_ bv4278190079 32)) (bvshl (bvadd base2flt_~e (_ bv128 32)) (_ bv24 32))))) (or (bvugt .cse0 |v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13|) (exists ((v_base2flt_~m_431 (_ BitVec 32)) (v_base2flt_~e_417 (_ BitVec 32))) (let ((.cse1 (bvor (bvand v_base2flt_~m_431 (_ bv4278190079 32)) (bvshl (bvadd (_ bv128 32) v_base2flt_~e_417) (_ bv24 32))))) (and (not (bvugt .cse1 |v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13|)) (bvult |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse1) (not (bvuge v_base2flt_~m_431 (_ bv33554432 32)))))) (not (bvult |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse0))))) is different from false [2024-11-03 13:38:33,663 WARN L873 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ BitVec 32)) (base2flt_~e (_ BitVec 32))) (let ((.cse0 (bvor (bvand c_base2flt_~m (_ bv4278190079 32)) (bvshl (bvadd base2flt_~e (_ bv128 32)) (_ bv24 32))))) (or (bvugt .cse0 |v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13|) (exists ((v_base2flt_~m_431 (_ BitVec 32)) (v_base2flt_~e_417 (_ BitVec 32))) (let ((.cse1 (bvor (bvand v_base2flt_~m_431 (_ bv4278190079 32)) (bvshl (bvadd (_ bv128 32) v_base2flt_~e_417) (_ bv24 32))))) (and (not (bvugt .cse1 |v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13|)) (bvult |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse1) (not (bvuge v_base2flt_~m_431 (_ bv33554432 32)))))) (not (bvult |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse0))))) is different from true [2024-11-03 13:38:33,803 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 849 trivial. 3 not checked. [2024-11-03 13:38:33,803 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:38:33,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [575080864] [2024-11-03 13:38:33,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [575080864] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:38:33,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:38:33,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 22 [2024-11-03 13:38:33,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792177593] [2024-11-03 13:38:33,803 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:38:33,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-03 13:38:33,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:38:33,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-03 13:38:33,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=221, Unknown=12, NotChecked=170, Total=462 [2024-11-03 13:38:33,804 INFO L87 Difference]: Start difference. First operand 195 states and 253 transitions. Second operand has 22 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 18 states have internal predecessors, (53), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-03 13:38:35,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 13:38:37,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 13:38:41,371 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ BitVec 32)) (base2flt_~e (_ BitVec 32))) (let ((.cse0 (bvor (bvand c_base2flt_~m (_ bv4278190079 32)) (bvshl (bvadd base2flt_~e (_ bv128 32)) (_ bv24 32))))) (or (bvugt .cse0 |v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13|) (exists ((v_base2flt_~m_431 (_ BitVec 32)) (v_base2flt_~e_417 (_ BitVec 32))) (let ((.cse1 (bvor (bvand v_base2flt_~m_431 (_ bv4278190079 32)) (bvshl (bvadd (_ bv128 32) v_base2flt_~e_417) (_ bv24 32))))) (and (not (bvugt .cse1 |v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13|)) (bvult |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse1) (not (bvuge v_base2flt_~m_431 (_ bv33554432 32)))))) (not (bvult |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse0))))) (not (bvuge c_base2flt_~m (_ bv33554432 32)))) is different from false [2024-11-03 13:38:45,397 WARN L873 $PredicateComparison]: unable to prove that (and (exists ((v_base2flt_~e_411 (_ BitVec 32)) (v_base2flt_~m_425 (_ BitVec 32))) (and (= c_base2flt_~__retres4~0 (bvor (bvand v_base2flt_~m_425 (_ bv4278190079 32)) (bvshl (bvadd (_ bv128 32) v_base2flt_~e_411) (_ bv24 32)))) (not (bvuge v_base2flt_~m_425 (_ bv33554432 32))))) (forall ((|v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ BitVec 32))) (or (not (bvult |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| c_base2flt_~__retres4~0)) (exists ((v_base2flt_~m_431 (_ BitVec 32)) (v_base2flt_~e_417 (_ BitVec 32))) (let ((.cse0 (bvor (bvand v_base2flt_~m_431 (_ bv4278190079 32)) (bvshl (bvadd (_ bv128 32) v_base2flt_~e_417) (_ bv24 32))))) (and (not (bvugt .cse0 |v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13|)) (bvult |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse0) (not (bvuge v_base2flt_~m_431 (_ bv33554432 32)))))) (bvugt c_base2flt_~__retres4~0 |v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13|)))) is different from true [2024-11-03 13:38:49,418 WARN L873 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ BitVec 32))) (or (not (bvult |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| |c_base2flt_#res|)) (exists ((v_base2flt_~m_431 (_ BitVec 32)) (v_base2flt_~e_417 (_ BitVec 32))) (let ((.cse0 (bvor (bvand v_base2flt_~m_431 (_ bv4278190079 32)) (bvshl (bvadd (_ bv128 32) v_base2flt_~e_417) (_ bv24 32))))) (and (not (bvugt .cse0 |v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13|)) (bvult |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse0) (not (bvuge v_base2flt_~m_431 (_ bv33554432 32)))))) (bvugt |c_base2flt_#res| |v_ULTIMATE.start_main_~zero~0#1_BEFORE_CALL_13|))) (exists ((v_base2flt_~e_411 (_ BitVec 32)) (v_base2flt_~m_425 (_ BitVec 32))) (and (= (bvor (bvand v_base2flt_~m_425 (_ bv4278190079 32)) (bvshl (bvadd (_ bv128 32) v_base2flt_~e_411) (_ bv24 32))) |c_base2flt_#res|) (not (bvuge v_base2flt_~m_425 (_ bv33554432 32)))))) is different from true [2024-11-03 13:38:51,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 13:38:53,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 13:38:55,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 13:38:56,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 13:38:58,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 13:39:00,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 13:39:02,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 13:39:04,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 13:39:06,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 13:39:08,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 13:39:10,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 13:39:12,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 13:39:13,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 13:39:17,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 13:39:19,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 13:39:21,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 13:39:26,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]