/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 'mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/bitvector/soft_float_4-2a.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 09:01:20,980 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 09:01:21,059 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 09:01:21,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 09:01:21,067 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 09:01:21,095 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 09:01:21,096 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 09:01:21,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 09:01:21,097 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 09:01:21,098 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 09:01:21,098 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 09:01:21,099 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 09:01:21,099 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 09:01:21,100 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 09:01:21,100 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 09:01:21,102 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 09:01:21,103 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 09:01:21,104 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 09:01:21,104 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 09:01:21,104 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 09:01:21,105 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 09:01:21,109 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 09:01:21,109 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 09:01:21,109 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 09:01:21,109 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 09:01:21,109 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 09:01:21,110 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 09:01:21,110 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 09:01:21,110 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 09:01:21,111 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 09:01:21,111 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 09:01:21,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 09:01:21,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 09:01:21,113 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 09:01:21,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 09:01:21,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 09:01:21,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 09:01:21,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 09:01:21,114 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 09:01:21,114 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 09:01:21,114 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 09:01:21,114 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 09:01:21,114 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 09:01:21,115 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 09:01:21,115 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:21,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 09:01:21,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 09:01:21,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 09:01:21,394 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 09:01:21,395 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 09:01:21,397 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/soft_float_4-2a.c.cil.c [2024-11-03 09:01:22,832 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 09:01:23,041 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 09:01:23,042 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/soft_float_4-2a.c.cil.c [2024-11-03 09:01:23,055 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e47e3bedf/7ceb174d61b846bfafd596493ec4b9bd/FLAGd4440d2d3 [2024-11-03 09:01:23,414 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e47e3bedf/7ceb174d61b846bfafd596493ec4b9bd [2024-11-03 09:01:23,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 09:01:23,418 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 09:01:23,420 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 09:01:23,421 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 09:01:23,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 09:01:23,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 09:01:23" (1/1) ... [2024-11-03 09:01:23,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c462f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:01:23, skipping insertion in model container [2024-11-03 09:01:23,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 09:01:23" (1/1) ... [2024-11-03 09:01:23,456 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 09:01:23,654 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_4-2a.c.cil.c[755,768] [2024-11-03 09:01:23,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 09:01:23,729 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 09:01:23,741 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_4-2a.c.cil.c[755,768] [2024-11-03 09:01:23,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 09:01:23,803 INFO L204 MainTranslator]: Completed translation [2024-11-03 09:01:23,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:01:23 WrapperNode [2024-11-03 09:01:23,804 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 09:01:23,805 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 09:01:23,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 09:01:23,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 09:01:23,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:01:23" (1/1) ... [2024-11-03 09:01:23,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:01:23" (1/1) ... [2024-11-03 09:01:23,836 INFO L138 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2024-11-03 09:01:23,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 09:01:23,837 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 09:01:23,837 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 09:01:23,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 09:01:23,846 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:01:23" (1/1) ... [2024-11-03 09:01:23,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:01:23" (1/1) ... [2024-11-03 09:01:23,850 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:01:23" (1/1) ... [2024-11-03 09:01:23,863 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 09:01:23,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:01:23" (1/1) ... [2024-11-03 09:01:23,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:01:23" (1/1) ... [2024-11-03 09:01:23,876 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:01:23" (1/1) ... [2024-11-03 09:01:23,879 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:01:23" (1/1) ... [2024-11-03 09:01:23,881 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:01:23" (1/1) ... [2024-11-03 09:01:23,883 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:01:23" (1/1) ... [2024-11-03 09:01:23,885 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 09:01:23,887 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 09:01:23,887 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 09:01:23,887 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 09:01:23,888 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:01:23" (1/1) ... [2024-11-03 09:01:23,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 09:01:23,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 09:01:23,915 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 09:01:23,917 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 09:01:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 09:01:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 09:01:23,939 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-03 09:01:23,939 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-03 09:01:23,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 09:01:23,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 09:01:23,939 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-11-03 09:01:23,939 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-11-03 09:01:23,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-03 09:01:23,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-03 09:01:24,002 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 09:01:24,004 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 09:01:24,295 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-03 09:01:24,295 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 09:01:24,307 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 09:01:24,308 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-03 09:01:24,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 09:01:24 BoogieIcfgContainer [2024-11-03 09:01:24,308 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 09:01:24,311 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 09:01:24,311 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 09:01:24,317 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 09:01:24,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 09:01:23" (1/3) ... [2024-11-03 09:01:24,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3f6ae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 09:01:24, skipping insertion in model container [2024-11-03 09:01:24,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:01:23" (2/3) ... [2024-11-03 09:01:24,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3f6ae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 09:01:24, skipping insertion in model container [2024-11-03 09:01:24,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 09:01:24" (3/3) ... [2024-11-03 09:01:24,321 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_4-2a.c.cil.c [2024-11-03 09:01:24,339 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 09:01:24,339 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 09:01:24,414 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 09:01:24,419 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;@506a00ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 09:01:24,419 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 09:01:24,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 41 states have (on average 1.4878048780487805) internal successors, (61), 42 states have internal predecessors, (61), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 09:01:24,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-03 09:01:24,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:24,430 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 09:01:24,431 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:24,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:24,440 INFO L85 PathProgramCache]: Analyzing trace with hash -2030319843, now seen corresponding path program 1 times [2024-11-03 09:01:24,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:24,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [661325314] [2024-11-03 09:01:24,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:24,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:24,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:24,452 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:24,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-03 09:01:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:24,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-03 09:01:24,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:24,687 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-03 09:01:24,688 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:24,761 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-03 09:01:24,762 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:24,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [661325314] [2024-11-03 09:01:24,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [661325314] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 09:01:24,763 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 09:01:24,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2024-11-03 09:01:24,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131559900] [2024-11-03 09:01:24,766 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 09:01:24,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 09:01:24,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:24,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 09:01:24,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-03 09:01:24,795 INFO L87 Difference]: Start difference. First operand has 54 states, 41 states have (on average 1.4878048780487805) internal successors, (61), 42 states have internal predecessors, (61), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-03 09:01:24,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:24,904 INFO L93 Difference]: Finished difference Result 125 states and 189 transitions. [2024-11-03 09:01:24,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-03 09:01:24,907 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2024-11-03 09:01:24,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:24,918 INFO L225 Difference]: With dead ends: 125 [2024-11-03 09:01:24,919 INFO L226 Difference]: Without dead ends: 68 [2024-11-03 09:01:24,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-03 09:01:24,927 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 14 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:24,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 445 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 09:01:24,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-03 09:01:24,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 61. [2024-11-03 09:01:24,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 48 states have internal predecessors, (60), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2024-11-03 09:01:24,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2024-11-03 09:01:24,972 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 31 [2024-11-03 09:01:24,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:24,973 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2024-11-03 09:01:24,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-03 09:01:24,973 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2024-11-03 09:01:24,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-03 09:01:24,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:24,976 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-03 09:01:24,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-03 09:01:25,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:25,177 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:25,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:25,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1468368814, now seen corresponding path program 1 times [2024-11-03 09:01:25,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:25,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264446362] [2024-11-03 09:01:25,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:25,179 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:25,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:25,182 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:25,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-03 09:01:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:25,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 09:01:25,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:25,365 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-03 09:01:25,365 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:25,433 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-03 09:01:25,433 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:25,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264446362] [2024-11-03 09:01:25,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [264446362] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:01:25,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:01:25,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2024-11-03 09:01:25,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731233475] [2024-11-03 09:01:25,434 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:01:25,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-03 09:01:25,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:25,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-03 09:01:25,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-03 09:01:25,440 INFO L87 Difference]: Start difference. First operand 61 states and 80 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-03 09:01:25,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:25,583 INFO L93 Difference]: Finished difference Result 115 states and 151 transitions. [2024-11-03 09:01:25,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-03 09:01:25,584 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-11-03 09:01:25,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:25,586 INFO L225 Difference]: With dead ends: 115 [2024-11-03 09:01:25,586 INFO L226 Difference]: Without dead ends: 87 [2024-11-03 09:01:25,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-03 09:01:25,589 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 15 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:25,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 477 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 09:01:25,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-03 09:01:25,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 71. [2024-11-03 09:01:25,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 53 states have (on average 1.2830188679245282) internal successors, (68), 55 states have internal predecessors, (68), 11 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-11-03 09:01:25,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 93 transitions. [2024-11-03 09:01:25,607 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 93 transitions. Word has length 35 [2024-11-03 09:01:25,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:25,607 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 93 transitions. [2024-11-03 09:01:25,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-03 09:01:25,608 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 93 transitions. [2024-11-03 09:01:25,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-03 09:01:25,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:25,609 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-03 09:01:25,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-03 09:01:25,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:25,814 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:25,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:25,814 INFO L85 PathProgramCache]: Analyzing trace with hash -686479404, now seen corresponding path program 1 times [2024-11-03 09:01:25,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:25,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740837800] [2024-11-03 09:01:25,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:25,815 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:25,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:25,817 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:25,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-03 09:01:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:25,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-03 09:01:25,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:25,956 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-03 09:01:25,957 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:26,030 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-03 09:01:26,030 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:26,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1740837800] [2024-11-03 09:01:26,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1740837800] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:01:26,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:01:26,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2024-11-03 09:01:26,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577379180] [2024-11-03 09:01:26,032 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:01:26,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 09:01:26,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:26,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 09:01:26,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-03 09:01:26,033 INFO L87 Difference]: Start difference. First operand 71 states and 93 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-03 09:01:26,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:26,135 INFO L93 Difference]: Finished difference Result 110 states and 144 transitions. [2024-11-03 09:01:26,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-03 09:01:26,136 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-11-03 09:01:26,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:26,138 INFO L225 Difference]: With dead ends: 110 [2024-11-03 09:01:26,138 INFO L226 Difference]: Without dead ends: 86 [2024-11-03 09:01:26,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 70 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 09:01:26,139 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 12 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:26,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 446 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 09:01:26,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-03 09:01:26,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 81. [2024-11-03 09:01:26,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 60 states have (on average 1.25) internal successors, (75), 62 states have internal predecessors, (75), 13 states have call successors, (13), 6 states have call predecessors, (13), 7 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2024-11-03 09:01:26,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 104 transitions. [2024-11-03 09:01:26,152 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 104 transitions. Word has length 39 [2024-11-03 09:01:26,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:26,152 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 104 transitions. [2024-11-03 09:01:26,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-03 09:01:26,152 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 104 transitions. [2024-11-03 09:01:26,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-03 09:01:26,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:26,157 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-03 09:01:26,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-03 09:01:26,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:26,358 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:26,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:26,359 INFO L85 PathProgramCache]: Analyzing trace with hash 461161469, now seen corresponding path program 2 times [2024-11-03 09:01:26,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:26,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174224146] [2024-11-03 09:01:26,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:26,359 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:26,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:26,363 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:26,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-03 09:01:26,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:26,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 09:01:26,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:26,578 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-03 09:01:26,578 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:26,677 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-03 09:01:26,677 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:26,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [174224146] [2024-11-03 09:01:26,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [174224146] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 09:01:26,678 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 09:01:26,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2024-11-03 09:01:26,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081027724] [2024-11-03 09:01:26,678 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 09:01:26,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 09:01:26,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:26,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 09:01:26,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-03 09:01:26,684 INFO L87 Difference]: Start difference. First operand 81 states and 104 transitions. Second operand has 10 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-03 09:01:27,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:27,697 INFO L93 Difference]: Finished difference Result 89 states and 112 transitions. [2024-11-03 09:01:27,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-03 09:01:27,698 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2024-11-03 09:01:27,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:27,700 INFO L225 Difference]: With dead ends: 89 [2024-11-03 09:01:27,701 INFO L226 Difference]: Without dead ends: 87 [2024-11-03 09:01:27,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-03 09:01:27,702 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 3 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:27,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 423 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-03 09:01:27,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-03 09:01:27,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2024-11-03 09:01:27,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 65 states have internal predecessors, (78), 13 states have call successors, (13), 7 states have call predecessors, (13), 8 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2024-11-03 09:01:27,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 107 transitions. [2024-11-03 09:01:27,731 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 107 transitions. Word has length 39 [2024-11-03 09:01:27,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:27,731 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 107 transitions. [2024-11-03 09:01:27,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-03 09:01:27,731 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 107 transitions. [2024-11-03 09:01:27,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-03 09:01:27,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:27,737 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-03 09:01:27,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-03 09:01:27,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:27,938 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:27,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:27,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1162622522, now seen corresponding path program 1 times [2024-11-03 09:01:27,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:27,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362693247] [2024-11-03 09:01:27,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:27,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:27,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:27,942 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:27,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-03 09:01:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:27,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-03 09:01:27,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:28,108 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-03 09:01:28,108 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:28,303 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-03 09:01:28,304 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:28,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362693247] [2024-11-03 09:01:28,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1362693247] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 09:01:28,304 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 09:01:28,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 14 [2024-11-03 09:01:28,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49317680] [2024-11-03 09:01:28,305 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 09:01:28,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-03 09:01:28,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:28,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-03 09:01:28,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-03 09:01:28,306 INFO L87 Difference]: Start difference. First operand 85 states and 107 transitions. Second operand has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 09:01:28,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:28,572 INFO L93 Difference]: Finished difference Result 124 states and 161 transitions. [2024-11-03 09:01:28,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-03 09:01:28,572 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2024-11-03 09:01:28,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:28,574 INFO L225 Difference]: With dead ends: 124 [2024-11-03 09:01:28,574 INFO L226 Difference]: Without dead ends: 117 [2024-11-03 09:01:28,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-03 09:01:28,575 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 23 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:28,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 782 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 09:01:28,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-03 09:01:28,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 100. [2024-11-03 09:01:28,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 76 states have internal predecessors, (91), 16 states have call successors, (16), 7 states have call predecessors, (16), 9 states have return successors, (22), 16 states have call predecessors, (22), 15 states have call successors, (22) [2024-11-03 09:01:28,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 129 transitions. [2024-11-03 09:01:28,593 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 129 transitions. Word has length 44 [2024-11-03 09:01:28,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:28,593 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 129 transitions. [2024-11-03 09:01:28,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 09:01:28,594 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 129 transitions. [2024-11-03 09:01:28,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-03 09:01:28,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:28,596 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-03 09:01:28,600 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-03 09:01:28,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:28,799 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:28,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:28,799 INFO L85 PathProgramCache]: Analyzing trace with hash -977013140, now seen corresponding path program 1 times [2024-11-03 09:01:28,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:28,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657267229] [2024-11-03 09:01:28,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:28,800 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:28,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:28,803 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:28,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-03 09:01:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:28,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-03 09:01:28,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:28,982 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-03 09:01:28,983 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:29,138 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-03 09:01:29,139 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:29,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657267229] [2024-11-03 09:01:29,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [657267229] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:01:29,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:01:29,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 14 [2024-11-03 09:01:29,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125654064] [2024-11-03 09:01:29,139 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:01:29,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-03 09:01:29,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:29,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-03 09:01:29,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-03 09:01:29,141 INFO L87 Difference]: Start difference. First operand 100 states and 129 transitions. Second operand has 14 states, 14 states have (on average 2.5) internal successors, (35), 12 states have internal predecessors, (35), 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 09:01:29,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:29,365 INFO L93 Difference]: Finished difference Result 131 states and 169 transitions. [2024-11-03 09:01:29,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-03 09:01:29,366 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 12 states have internal predecessors, (35), 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) Word has length 46 [2024-11-03 09:01:29,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:29,367 INFO L225 Difference]: With dead ends: 131 [2024-11-03 09:01:29,368 INFO L226 Difference]: Without dead ends: 123 [2024-11-03 09:01:29,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-03 09:01:29,369 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 35 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:29,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 730 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 09:01:29,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-03 09:01:29,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 111. [2024-11-03 09:01:29,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 83 states have (on average 1.216867469879518) internal successors, (101), 84 states have internal predecessors, (101), 17 states have call successors, (17), 7 states have call predecessors, (17), 10 states have return successors, (24), 19 states have call predecessors, (24), 16 states have call successors, (24) [2024-11-03 09:01:29,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 142 transitions. [2024-11-03 09:01:29,384 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 142 transitions. Word has length 46 [2024-11-03 09:01:29,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:29,385 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 142 transitions. [2024-11-03 09:01:29,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 12 states have internal predecessors, (35), 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 09:01:29,385 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 142 transitions. [2024-11-03 09:01:29,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-03 09:01:29,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:29,387 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-03 09:01:29,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-03 09:01:29,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:29,588 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:29,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:29,588 INFO L85 PathProgramCache]: Analyzing trace with hash -919754838, now seen corresponding path program 1 times [2024-11-03 09:01:29,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:29,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [172784415] [2024-11-03 09:01:29,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:29,589 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:29,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:29,595 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:29,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-03 09:01:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:29,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 09:01:29,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:29,688 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-03 09:01:29,688 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:29,732 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-03 09:01:29,733 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:29,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [172784415] [2024-11-03 09:01:29,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [172784415] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 09:01:29,733 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 09:01:29,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2024-11-03 09:01:29,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787173375] [2024-11-03 09:01:29,733 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 09:01:29,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 09:01:29,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:29,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 09:01:29,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-03 09:01:29,735 INFO L87 Difference]: Start difference. First operand 111 states and 142 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-03 09:01:29,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:29,779 INFO L93 Difference]: Finished difference Result 119 states and 149 transitions. [2024-11-03 09:01:29,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 09:01:29,780 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 46 [2024-11-03 09:01:29,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:29,781 INFO L225 Difference]: With dead ends: 119 [2024-11-03 09:01:29,781 INFO L226 Difference]: Without dead ends: 104 [2024-11-03 09:01:29,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 84 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 09:01:29,783 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 6 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:29,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 312 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 09:01:29,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-03 09:01:29,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-03 09:01:29,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 78 states have (on average 1.205128205128205) internal successors, (94), 80 states have internal predecessors, (94), 15 states have call successors, (15), 7 states have call predecessors, (15), 10 states have return successors, (21), 16 states have call predecessors, (21), 14 states have call successors, (21) [2024-11-03 09:01:29,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 130 transitions. [2024-11-03 09:01:29,803 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 130 transitions. Word has length 46 [2024-11-03 09:01:29,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:29,803 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 130 transitions. [2024-11-03 09:01:29,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-03 09:01:29,804 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 130 transitions. [2024-11-03 09:01:29,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-03 09:01:29,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:29,805 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-03 09:01:29,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-03 09:01:30,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:30,006 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:30,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:30,006 INFO L85 PathProgramCache]: Analyzing trace with hash -168643793, now seen corresponding path program 1 times [2024-11-03 09:01:30,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:30,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642636469] [2024-11-03 09:01:30,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:30,007 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:30,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:30,008 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:30,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-03 09:01:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:30,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-03 09:01:30,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:30,217 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-03 09:01:30,217 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:30,596 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-03 09:01:30,596 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:30,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [642636469] [2024-11-03 09:01:30,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [642636469] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:01:30,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:01:30,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2024-11-03 09:01:30,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453789635] [2024-11-03 09:01:30,597 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:01:30,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-03 09:01:30,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:30,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-03 09:01:30,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2024-11-03 09:01:30,599 INFO L87 Difference]: Start difference. First operand 104 states and 130 transitions. Second operand has 24 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 20 states have internal predecessors, (43), 4 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-03 09:01:31,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:31,669 INFO L93 Difference]: Finished difference Result 146 states and 202 transitions. [2024-11-03 09:01:31,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-03 09:01:31,670 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 20 states have internal predecessors, (43), 4 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 48 [2024-11-03 09:01:31,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:31,671 INFO L225 Difference]: With dead ends: 146 [2024-11-03 09:01:31,671 INFO L226 Difference]: Without dead ends: 109 [2024-11-03 09:01:31,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=156, Invalid=1404, Unknown=0, NotChecked=0, Total=1560 [2024-11-03 09:01:31,676 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 71 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:31,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 986 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-03 09:01:31,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-03 09:01:31,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 86. [2024-11-03 09:01:31,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.234375) internal successors, (79), 68 states have internal predecessors, (79), 12 states have call successors, (12), 5 states have call predecessors, (12), 9 states have return successors, (24), 12 states have call predecessors, (24), 11 states have call successors, (24) [2024-11-03 09:01:31,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 115 transitions. [2024-11-03 09:01:31,695 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 115 transitions. Word has length 48 [2024-11-03 09:01:31,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:31,695 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 115 transitions. [2024-11-03 09:01:31,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 20 states have internal predecessors, (43), 4 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-03 09:01:31,696 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 115 transitions. [2024-11-03 09:01:31,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-03 09:01:31,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:31,697 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-03 09:01:31,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-03 09:01:31,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:31,900 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:31,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:31,901 INFO L85 PathProgramCache]: Analyzing trace with hash 291178745, now seen corresponding path program 2 times [2024-11-03 09:01:31,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:31,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991327197] [2024-11-03 09:01:31,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:31,901 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:31,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:31,903 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:31,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-03 09:01:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:31,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-03 09:01:31,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:32,096 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-03 09:01:32,096 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:32,447 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-03 09:01:32,447 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:32,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [991327197] [2024-11-03 09:01:32,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [991327197] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:01:32,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:01:32,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2024-11-03 09:01:32,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101489104] [2024-11-03 09:01:32,448 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:01:32,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-03 09:01:32,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:32,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-03 09:01:32,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2024-11-03 09:01:32,450 INFO L87 Difference]: Start difference. First operand 86 states and 115 transitions. Second operand has 24 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 20 states have internal predecessors, (43), 4 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-03 09:01:33,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:33,299 INFO L93 Difference]: Finished difference Result 119 states and 166 transitions. [2024-11-03 09:01:33,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-03 09:01:33,301 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 20 states have internal predecessors, (43), 4 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 48 [2024-11-03 09:01:33,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:33,303 INFO L225 Difference]: With dead ends: 119 [2024-11-03 09:01:33,303 INFO L226 Difference]: Without dead ends: 108 [2024-11-03 09:01:33,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=137, Invalid=1269, Unknown=0, NotChecked=0, Total=1406 [2024-11-03 09:01:33,304 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 68 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:33,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1110 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-03 09:01:33,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-03 09:01:33,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 88. [2024-11-03 09:01:33,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 65 states have (on average 1.2307692307692308) internal successors, (80), 69 states have internal predecessors, (80), 13 states have call successors, (13), 5 states have call predecessors, (13), 9 states have return successors, (27), 13 states have call predecessors, (27), 12 states have call successors, (27) [2024-11-03 09:01:33,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 120 transitions. [2024-11-03 09:01:33,324 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 120 transitions. Word has length 48 [2024-11-03 09:01:33,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:33,325 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 120 transitions. [2024-11-03 09:01:33,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 20 states have internal predecessors, (43), 4 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-03 09:01:33,325 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 120 transitions. [2024-11-03 09:01:33,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-03 09:01:33,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:33,326 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 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] [2024-11-03 09:01:33,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-03 09:01:33,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:33,527 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:33,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:33,527 INFO L85 PathProgramCache]: Analyzing trace with hash -744862915, now seen corresponding path program 1 times [2024-11-03 09:01:33,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:33,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260352415] [2024-11-03 09:01:33,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:33,528 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:33,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:33,529 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:33,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-03 09:01:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:33,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 09:01:33,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:34,882 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-03 09:01:34,882 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:35,099 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-03 09:01:35,100 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:35,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260352415] [2024-11-03 09:01:35,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1260352415] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 09:01:35,100 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 09:01:35,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2024-11-03 09:01:35,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081205195] [2024-11-03 09:01:35,100 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 09:01:35,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-03 09:01:35,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:35,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-03 09:01:35,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-03 09:01:35,102 INFO L87 Difference]: Start difference. First operand 88 states and 120 transitions. Second operand has 14 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 5 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-03 09:01:35,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:35,257 INFO L93 Difference]: Finished difference Result 102 states and 140 transitions. [2024-11-03 09:01:35,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 09:01:35,257 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 5 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 49 [2024-11-03 09:01:35,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:35,259 INFO L225 Difference]: With dead ends: 102 [2024-11-03 09:01:35,259 INFO L226 Difference]: Without dead ends: 98 [2024-11-03 09:01:35,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-03 09:01:35,260 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 17 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:35,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 476 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 09:01:35,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-03 09:01:35,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 90. [2024-11-03 09:01:35,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 67 states have (on average 1.208955223880597) internal successors, (81), 70 states have internal predecessors, (81), 13 states have call successors, (13), 6 states have call predecessors, (13), 9 states have return successors, (27), 13 states have call predecessors, (27), 12 states have call successors, (27) [2024-11-03 09:01:35,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 121 transitions. [2024-11-03 09:01:35,270 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 121 transitions. Word has length 49 [2024-11-03 09:01:35,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:35,271 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 121 transitions. [2024-11-03 09:01:35,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 5 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-03 09:01:35,271 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 121 transitions. [2024-11-03 09:01:35,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-03 09:01:35,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:35,272 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 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] [2024-11-03 09:01:35,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-03 09:01:35,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:35,476 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:35,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:35,476 INFO L85 PathProgramCache]: Analyzing trace with hash -325172767, now seen corresponding path program 1 times [2024-11-03 09:01:35,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:35,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800166981] [2024-11-03 09:01:35,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:35,477 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:35,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:35,478 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:35,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-03 09:01:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:35,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-03 09:01:35,525 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:35,611 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-03 09:01:35,611 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:35,813 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-03 09:01:35,813 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:35,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800166981] [2024-11-03 09:01:35,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [800166981] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:01:35,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:01:35,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2024-11-03 09:01:35,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535819629] [2024-11-03 09:01:35,814 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:01:35,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-03 09:01:35,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:35,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-03 09:01:35,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-03 09:01:35,815 INFO L87 Difference]: Start difference. First operand 90 states and 121 transitions. Second operand has 16 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 4 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-03 09:01:36,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:36,119 INFO L93 Difference]: Finished difference Result 119 states and 164 transitions. [2024-11-03 09:01:36,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-03 09:01:36,119 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 4 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 50 [2024-11-03 09:01:36,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:36,120 INFO L225 Difference]: With dead ends: 119 [2024-11-03 09:01:36,120 INFO L226 Difference]: Without dead ends: 110 [2024-11-03 09:01:36,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-11-03 09:01:36,121 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 30 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:36,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 768 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 09:01:36,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-03 09:01:36,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 93. [2024-11-03 09:01:36,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 69 states have (on average 1.2028985507246377) internal successors, (83), 73 states have internal predecessors, (83), 13 states have call successors, (13), 6 states have call predecessors, (13), 10 states have return successors, (30), 13 states have call predecessors, (30), 12 states have call successors, (30) [2024-11-03 09:01:36,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 126 transitions. [2024-11-03 09:01:36,135 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 126 transitions. Word has length 50 [2024-11-03 09:01:36,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:36,135 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 126 transitions. [2024-11-03 09:01:36,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 4 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-03 09:01:36,135 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 126 transitions. [2024-11-03 09:01:36,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-03 09:01:36,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:36,136 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 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] [2024-11-03 09:01:36,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-03 09:01:36,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:36,337 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:36,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:36,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1592416888, now seen corresponding path program 1 times [2024-11-03 09:01:36,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:36,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041989698] [2024-11-03 09:01:36,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:36,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:36,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:36,339 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:36,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-03 09:01:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:36,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 09:01:36,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:36,444 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-03 09:01:36,445 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:36,550 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-03 09:01:36,551 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:36,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041989698] [2024-11-03 09:01:36,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2041989698] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:01:36,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:01:36,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2024-11-03 09:01:36,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612098691] [2024-11-03 09:01:36,551 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:01:36,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-03 09:01:36,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:36,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-03 09:01:36,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-03 09:01:36,552 INFO L87 Difference]: Start difference. First operand 93 states and 126 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-03 09:01:36,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:36,724 INFO L93 Difference]: Finished difference Result 119 states and 172 transitions. [2024-11-03 09:01:36,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 09:01:36,724 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2024-11-03 09:01:36,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:36,725 INFO L225 Difference]: With dead ends: 119 [2024-11-03 09:01:36,725 INFO L226 Difference]: Without dead ends: 106 [2024-11-03 09:01:36,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-03 09:01:36,727 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 78 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:36,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 394 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 09:01:36,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-03 09:01:36,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 96. [2024-11-03 09:01:36,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 71 states have (on average 1.1971830985915493) internal successors, (85), 76 states have internal predecessors, (85), 13 states have call successors, (13), 6 states have call predecessors, (13), 11 states have return successors, (33), 13 states have call predecessors, (33), 12 states have call successors, (33) [2024-11-03 09:01:36,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 131 transitions. [2024-11-03 09:01:36,745 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 131 transitions. Word has length 54 [2024-11-03 09:01:36,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:36,746 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 131 transitions. [2024-11-03 09:01:36,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-03 09:01:36,746 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 131 transitions. [2024-11-03 09:01:36,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-03 09:01:36,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:36,747 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1] [2024-11-03 09:01:36,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2024-11-03 09:01:36,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:36,948 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:36,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:36,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1024200387, now seen corresponding path program 1 times [2024-11-03 09:01:36,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:36,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1931640447] [2024-11-03 09:01:36,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:36,949 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:36,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:36,950 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:36,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-03 09:01:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:36,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 09:01:36,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:37,062 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-03 09:01:37,062 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:37,169 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-03 09:01:37,169 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:37,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1931640447] [2024-11-03 09:01:37,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1931640447] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 09:01:37,169 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 09:01:37,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2024-11-03 09:01:37,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069519630] [2024-11-03 09:01:37,170 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 09:01:37,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-03 09:01:37,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:37,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-03 09:01:37,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-03 09:01:37,171 INFO L87 Difference]: Start difference. First operand 96 states and 131 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-03 09:01:37,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:37,309 INFO L93 Difference]: Finished difference Result 119 states and 170 transitions. [2024-11-03 09:01:37,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-03 09:01:37,310 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 59 [2024-11-03 09:01:37,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:37,311 INFO L225 Difference]: With dead ends: 119 [2024-11-03 09:01:37,311 INFO L226 Difference]: Without dead ends: 98 [2024-11-03 09:01:37,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-03 09:01:37,312 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 27 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:37,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 486 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 09:01:37,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-03 09:01:37,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 88. [2024-11-03 09:01:37,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 65 states have (on average 1.2153846153846153) internal successors, (79), 70 states have internal predecessors, (79), 12 states have call successors, (12), 5 states have call predecessors, (12), 10 states have return successors, (31), 12 states have call predecessors, (31), 11 states have call successors, (31) [2024-11-03 09:01:37,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 122 transitions. [2024-11-03 09:01:37,326 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 122 transitions. Word has length 59 [2024-11-03 09:01:37,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:37,326 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 122 transitions. [2024-11-03 09:01:37,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-03 09:01:37,326 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 122 transitions. [2024-11-03 09:01:37,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-03 09:01:37,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:37,327 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 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 09:01:37,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2024-11-03 09:01:37,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:37,528 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:37,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:37,529 INFO L85 PathProgramCache]: Analyzing trace with hash -177633806, now seen corresponding path program 2 times [2024-11-03 09:01:37,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:37,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808456036] [2024-11-03 09:01:37,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:37,529 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:37,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:37,533 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:37,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-03 09:01:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:37,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 09:01:37,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:37,655 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-03 09:01:37,656 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:37,772 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-03 09:01:37,772 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:37,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808456036] [2024-11-03 09:01:37,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1808456036] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:01:37,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:01:37,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2024-11-03 09:01:37,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733563525] [2024-11-03 09:01:37,773 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:01:37,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-03 09:01:37,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:37,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-03 09:01:37,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-03 09:01:37,774 INFO L87 Difference]: Start difference. First operand 88 states and 122 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-03 09:01:37,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:37,902 INFO L93 Difference]: Finished difference Result 111 states and 161 transitions. [2024-11-03 09:01:37,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 09:01:37,903 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 63 [2024-11-03 09:01:37,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:37,904 INFO L225 Difference]: With dead ends: 111 [2024-11-03 09:01:37,904 INFO L226 Difference]: Without dead ends: 98 [2024-11-03 09:01:37,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-03 09:01:37,905 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 33 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:37,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 429 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 09:01:37,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-03 09:01:37,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 88. [2024-11-03 09:01:37,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 65 states have (on average 1.2153846153846153) internal successors, (79), 70 states have internal predecessors, (79), 12 states have call successors, (12), 5 states have call predecessors, (12), 10 states have return successors, (30), 12 states have call predecessors, (30), 11 states have call successors, (30) [2024-11-03 09:01:37,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 121 transitions. [2024-11-03 09:01:37,917 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 121 transitions. Word has length 63 [2024-11-03 09:01:37,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:37,917 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 121 transitions. [2024-11-03 09:01:37,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-03 09:01:37,917 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 121 transitions. [2024-11-03 09:01:37,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-03 09:01:37,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:37,918 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 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] [2024-11-03 09:01:37,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-03 09:01:38,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:38,119 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:38,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:38,120 INFO L85 PathProgramCache]: Analyzing trace with hash -378794195, now seen corresponding path program 1 times [2024-11-03 09:01:38,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:38,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284419960] [2024-11-03 09:01:38,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:38,120 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:38,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:38,123 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:38,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-03 09:01:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:38,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 09:01:38,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:38,223 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-03 09:01:38,223 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:38,334 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-03 09:01:38,334 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:38,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284419960] [2024-11-03 09:01:38,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [284419960] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:01:38,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:01:38,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2024-11-03 09:01:38,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689545082] [2024-11-03 09:01:38,335 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:01:38,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-03 09:01:38,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:38,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-03 09:01:38,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-03 09:01:38,336 INFO L87 Difference]: Start difference. First operand 88 states and 121 transitions. Second operand has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-03 09:01:38,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:38,506 INFO L93 Difference]: Finished difference Result 109 states and 153 transitions. [2024-11-03 09:01:38,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 09:01:38,507 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 63 [2024-11-03 09:01:38,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:38,508 INFO L225 Difference]: With dead ends: 109 [2024-11-03 09:01:38,508 INFO L226 Difference]: Without dead ends: 95 [2024-11-03 09:01:38,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-03 09:01:38,508 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 38 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:38,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 486 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 09:01:38,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-03 09:01:38,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 85. [2024-11-03 09:01:38,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.2063492063492063) internal successors, (76), 67 states have internal predecessors, (76), 12 states have call successors, (12), 5 states have call predecessors, (12), 9 states have return successors, (27), 12 states have call predecessors, (27), 11 states have call successors, (27) [2024-11-03 09:01:38,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 115 transitions. [2024-11-03 09:01:38,521 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 115 transitions. Word has length 63 [2024-11-03 09:01:38,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:38,521 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 115 transitions. [2024-11-03 09:01:38,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-03 09:01:38,521 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 115 transitions. [2024-11-03 09:01:38,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-03 09:01:38,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:38,522 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 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, 1, 1] [2024-11-03 09:01:38,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-03 09:01:38,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:38,723 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:38,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:38,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2130957302, now seen corresponding path program 1 times [2024-11-03 09:01:38,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:38,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891535890] [2024-11-03 09:01:38,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:38,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:38,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:38,727 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:38,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-03 09:01:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:38,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 09:01:38,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:38,842 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-03 09:01:38,842 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:38,955 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-03 09:01:38,955 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:38,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891535890] [2024-11-03 09:01:38,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [891535890] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:01:38,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:01:38,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2024-11-03 09:01:38,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099155887] [2024-11-03 09:01:38,956 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:01:38,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-03 09:01:38,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:38,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-03 09:01:38,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-03 09:01:38,957 INFO L87 Difference]: Start difference. First operand 85 states and 115 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-03 09:01:39,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:39,086 INFO L93 Difference]: Finished difference Result 106 states and 147 transitions. [2024-11-03 09:01:39,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 09:01:39,086 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 65 [2024-11-03 09:01:39,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:39,087 INFO L225 Difference]: With dead ends: 106 [2024-11-03 09:01:39,087 INFO L226 Difference]: Without dead ends: 92 [2024-11-03 09:01:39,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-03 09:01:39,088 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 26 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:39,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 514 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 09:01:39,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-03 09:01:39,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 82. [2024-11-03 09:01:39,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 64 states have internal predecessors, (73), 12 states have call successors, (12), 5 states have call predecessors, (12), 8 states have return successors, (25), 12 states have call predecessors, (25), 11 states have call successors, (25) [2024-11-03 09:01:39,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 110 transitions. [2024-11-03 09:01:39,097 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 110 transitions. Word has length 65 [2024-11-03 09:01:39,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:39,097 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 110 transitions. [2024-11-03 09:01:39,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-03 09:01:39,098 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 110 transitions. [2024-11-03 09:01:39,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-03 09:01:39,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:39,099 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-03 09:01:39,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-03 09:01:39,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:39,299 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:39,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:39,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1951422266, now seen corresponding path program 1 times [2024-11-03 09:01:39,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:39,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418020265] [2024-11-03 09:01:39,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:39,300 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:39,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:39,303 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:39,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-03 09:01:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:39,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-03 09:01:39,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:39,674 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-03 09:01:39,675 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:41,115 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-03 09:01:41,115 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:41,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418020265] [2024-11-03 09:01:41,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [418020265] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 09:01:41,116 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 09:01:41,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 17] imperfect sequences [] total 24 [2024-11-03 09:01:41,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976358123] [2024-11-03 09:01:41,116 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 09:01:41,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-03 09:01:41,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:41,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-03 09:01:41,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=444, Unknown=0, NotChecked=0, Total=552 [2024-11-03 09:01:41,117 INFO L87 Difference]: Start difference. First operand 82 states and 110 transitions. Second operand has 24 states, 24 states have (on average 2.125) internal successors, (51), 24 states have internal predecessors, (51), 7 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-03 09:01:41,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:41,596 INFO L93 Difference]: Finished difference Result 119 states and 172 transitions. [2024-11-03 09:01:41,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-03 09:01:41,596 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.125) internal successors, (51), 24 states have internal predecessors, (51), 7 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) Word has length 72 [2024-11-03 09:01:41,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:41,597 INFO L225 Difference]: With dead ends: 119 [2024-11-03 09:01:41,597 INFO L226 Difference]: Without dead ends: 108 [2024-11-03 09:01:41,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2024-11-03 09:01:41,598 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 33 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:41,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 847 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-03 09:01:41,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-03 09:01:41,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 94. [2024-11-03 09:01:41,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.2028985507246377) internal successors, (83), 74 states have internal predecessors, (83), 14 states have call successors, (14), 5 states have call predecessors, (14), 10 states have return successors, (38), 14 states have call predecessors, (38), 13 states have call successors, (38) [2024-11-03 09:01:41,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 135 transitions. [2024-11-03 09:01:41,608 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 135 transitions. Word has length 72 [2024-11-03 09:01:41,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:41,608 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 135 transitions. [2024-11-03 09:01:41,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.125) internal successors, (51), 24 states have internal predecessors, (51), 7 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-03 09:01:41,608 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 135 transitions. [2024-11-03 09:01:41,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-03 09:01:41,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:41,609 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-03 09:01:41,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-03 09:01:41,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:41,810 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:41,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:41,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1279345645, now seen corresponding path program 1 times [2024-11-03 09:01:41,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:41,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426711192] [2024-11-03 09:01:41,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:41,811 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:41,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:41,813 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:41,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-03 09:01:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:41,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-03 09:01:41,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:42,332 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-03 09:01:42,332 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:43,578 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-03 09:01:43,578 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:43,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426711192] [2024-11-03 09:01:43,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1426711192] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:01:43,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:01:43,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 28 [2024-11-03 09:01:43,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060392434] [2024-11-03 09:01:43,579 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:01:43,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-03 09:01:43,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:43,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-03 09:01:43,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=649, Unknown=0, NotChecked=0, Total=756 [2024-11-03 09:01:43,580 INFO L87 Difference]: Start difference. First operand 94 states and 135 transitions. Second operand has 28 states, 28 states have (on average 2.1785714285714284) internal successors, (61), 28 states have internal predecessors, (61), 8 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-03 09:01:46,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:46,267 INFO L93 Difference]: Finished difference Result 157 states and 227 transitions. [2024-11-03 09:01:46,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-03 09:01:46,269 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.1785714285714284) internal successors, (61), 28 states have internal predecessors, (61), 8 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) Word has length 72 [2024-11-03 09:01:46,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:46,270 INFO L225 Difference]: With dead ends: 157 [2024-11-03 09:01:46,270 INFO L226 Difference]: Without dead ends: 127 [2024-11-03 09:01:46,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=342, Invalid=2108, Unknown=0, NotChecked=0, Total=2450 [2024-11-03 09:01:46,272 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 85 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:46,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 835 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-03 09:01:46,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-03 09:01:46,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 113. [2024-11-03 09:01:46,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 83 states have (on average 1.1927710843373494) internal successors, (99), 88 states have internal predecessors, (99), 18 states have call successors, (18), 6 states have call predecessors, (18), 11 states have return successors, (55), 18 states have call predecessors, (55), 17 states have call successors, (55) [2024-11-03 09:01:46,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 172 transitions. [2024-11-03 09:01:46,287 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 172 transitions. Word has length 72 [2024-11-03 09:01:46,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:46,287 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 172 transitions. [2024-11-03 09:01:46,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.1785714285714284) internal successors, (61), 28 states have internal predecessors, (61), 8 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-03 09:01:46,287 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 172 transitions. [2024-11-03 09:01:46,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-03 09:01:46,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:46,289 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-03 09:01:46,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2024-11-03 09:01:46,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:46,493 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:46,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:46,494 INFO L85 PathProgramCache]: Analyzing trace with hash -784876239, now seen corresponding path program 2 times [2024-11-03 09:01:46,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:46,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [145500360] [2024-11-03 09:01:46,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:46,494 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:46,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:46,497 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:46,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-03 09:01:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:46,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-03 09:01:46,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:47,047 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-03 09:01:47,048 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:48,328 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-03 09:01:48,328 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:48,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [145500360] [2024-11-03 09:01:48,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [145500360] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:01:48,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:01:48,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 28 [2024-11-03 09:01:48,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505657524] [2024-11-03 09:01:48,328 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:01:48,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-03 09:01:48,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:48,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-03 09:01:48,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2024-11-03 09:01:48,330 INFO L87 Difference]: Start difference. First operand 113 states and 172 transitions. Second operand has 28 states, 28 states have (on average 2.1785714285714284) internal successors, (61), 28 states have internal predecessors, (61), 8 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-03 09:01:50,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:50,500 INFO L93 Difference]: Finished difference Result 179 states and 261 transitions. [2024-11-03 09:01:50,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-03 09:01:50,502 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.1785714285714284) internal successors, (61), 28 states have internal predecessors, (61), 8 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) Word has length 72 [2024-11-03 09:01:50,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:50,503 INFO L225 Difference]: With dead ends: 179 [2024-11-03 09:01:50,503 INFO L226 Difference]: Without dead ends: 162 [2024-11-03 09:01:50,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=268, Invalid=1538, Unknown=0, NotChecked=0, Total=1806 [2024-11-03 09:01:50,504 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 50 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:50,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 1089 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-03 09:01:50,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-03 09:01:50,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 143. [2024-11-03 09:01:50,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 106 states have (on average 1.1981132075471699) internal successors, (127), 112 states have internal predecessors, (127), 23 states have call successors, (23), 7 states have call predecessors, (23), 13 states have return successors, (68), 23 states have call predecessors, (68), 22 states have call successors, (68) [2024-11-03 09:01:50,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 218 transitions. [2024-11-03 09:01:50,529 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 218 transitions. Word has length 72 [2024-11-03 09:01:50,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:50,530 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 218 transitions. [2024-11-03 09:01:50,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.1785714285714284) internal successors, (61), 28 states have internal predecessors, (61), 8 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-03 09:01:50,530 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 218 transitions. [2024-11-03 09:01:50,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-03 09:01:50,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:50,531 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-03 09:01:50,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-03 09:01:50,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:50,732 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:50,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:50,732 INFO L85 PathProgramCache]: Analyzing trace with hash 140535092, now seen corresponding path program 1 times [2024-11-03 09:01:50,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:50,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1712243966] [2024-11-03 09:01:50,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:50,733 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:50,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:50,736 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:50,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-03 09:01:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:50,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 09:01:50,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:50,869 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-03 09:01:50,869 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:50,938 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-03 09:01:50,938 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:50,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1712243966] [2024-11-03 09:01:50,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1712243966] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 09:01:50,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 09:01:50,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 10 [2024-11-03 09:01:50,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178581106] [2024-11-03 09:01:50,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 09:01:50,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 09:01:50,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:50,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 09:01:50,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-03 09:01:50,940 INFO L87 Difference]: Start difference. First operand 143 states and 218 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 09:01:50,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:50,998 INFO L93 Difference]: Finished difference Result 155 states and 231 transitions. [2024-11-03 09:01:50,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-03 09:01:50,998 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 74 [2024-11-03 09:01:50,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:50,999 INFO L225 Difference]: With dead ends: 155 [2024-11-03 09:01:50,999 INFO L226 Difference]: Without dead ends: 146 [2024-11-03 09:01:51,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-03 09:01:51,000 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 3 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:51,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 342 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 09:01:51,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-03 09:01:51,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 143. [2024-11-03 09:01:51,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 106 states have (on average 1.1981132075471699) internal successors, (127), 112 states have internal predecessors, (127), 23 states have call successors, (23), 7 states have call predecessors, (23), 13 states have return successors, (64), 23 states have call predecessors, (64), 22 states have call successors, (64) [2024-11-03 09:01:51,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 214 transitions. [2024-11-03 09:01:51,022 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 214 transitions. Word has length 74 [2024-11-03 09:01:51,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:51,022 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 214 transitions. [2024-11-03 09:01:51,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 09:01:51,022 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 214 transitions. [2024-11-03 09:01:51,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-03 09:01:51,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:51,024 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-03 09:01:51,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2024-11-03 09:01:51,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:51,224 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:51,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:51,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1250321149, now seen corresponding path program 1 times [2024-11-03 09:01:51,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:51,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499623506] [2024-11-03 09:01:51,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:51,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:51,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:51,240 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:51,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-03 09:01:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:51,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-03 09:01:51,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:51,733 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-03 09:01:51,734 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:53,058 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-03 09:01:53,059 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:53,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499623506] [2024-11-03 09:01:53,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1499623506] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:01:53,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:01:53,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 28 [2024-11-03 09:01:53,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955032759] [2024-11-03 09:01:53,059 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:01:53,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-03 09:01:53,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:53,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-03 09:01:53,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2024-11-03 09:01:53,061 INFO L87 Difference]: Start difference. First operand 143 states and 214 transitions. Second operand has 28 states, 28 states have (on average 2.25) internal successors, (63), 28 states have internal predecessors, (63), 8 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-03 09:01:54,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:54,272 INFO L93 Difference]: Finished difference Result 177 states and 252 transitions. [2024-11-03 09:01:54,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-03 09:01:54,273 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.25) internal successors, (63), 28 states have internal predecessors, (63), 8 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) Word has length 74 [2024-11-03 09:01:54,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:54,275 INFO L225 Difference]: With dead ends: 177 [2024-11-03 09:01:54,275 INFO L226 Difference]: Without dead ends: 163 [2024-11-03 09:01:54,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=231, Invalid=1029, Unknown=0, NotChecked=0, Total=1260 [2024-11-03 09:01:54,276 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 35 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:54,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 832 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-03 09:01:54,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-03 09:01:54,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 151. [2024-11-03 09:01:54,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 113 states have (on average 1.1946902654867257) internal successors, (135), 118 states have internal predecessors, (135), 24 states have call successors, (24), 8 states have call predecessors, (24), 13 states have return successors, (59), 24 states have call predecessors, (59), 23 states have call successors, (59) [2024-11-03 09:01:54,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 218 transitions. [2024-11-03 09:01:54,301 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 218 transitions. Word has length 74 [2024-11-03 09:01:54,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:54,301 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 218 transitions. [2024-11-03 09:01:54,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.25) internal successors, (63), 28 states have internal predecessors, (63), 8 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-03 09:01:54,301 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 218 transitions. [2024-11-03 09:01:54,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-03 09:01:54,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:54,304 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-03 09:01:54,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-11-03 09:01:54,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:54,508 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:54,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:54,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1455113153, now seen corresponding path program 2 times [2024-11-03 09:01:54,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:54,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1355469386] [2024-11-03 09:01:54,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:54,508 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:54,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:54,513 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:54,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-03 09:01:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:54,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-03 09:01:54,583 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:55,013 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-03 09:01:55,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:01:56,294 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-03 09:01:56,295 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:01:56,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1355469386] [2024-11-03 09:01:56,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1355469386] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:01:56,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:01:56,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 28 [2024-11-03 09:01:56,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771095292] [2024-11-03 09:01:56,295 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:01:56,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-03 09:01:56,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:01:56,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-03 09:01:56,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2024-11-03 09:01:56,296 INFO L87 Difference]: Start difference. First operand 151 states and 218 transitions. Second operand has 28 states, 28 states have (on average 2.25) internal successors, (63), 28 states have internal predecessors, (63), 8 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-03 09:01:57,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:01:57,544 INFO L93 Difference]: Finished difference Result 187 states and 259 transitions. [2024-11-03 09:01:57,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-03 09:01:57,545 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.25) internal successors, (63), 28 states have internal predecessors, (63), 8 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) Word has length 74 [2024-11-03 09:01:57,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:01:57,546 INFO L225 Difference]: With dead ends: 187 [2024-11-03 09:01:57,546 INFO L226 Difference]: Without dead ends: 173 [2024-11-03 09:01:57,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=219, Invalid=1041, Unknown=0, NotChecked=0, Total=1260 [2024-11-03 09:01:57,548 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 44 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-03 09:01:57,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 857 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-03 09:01:57,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-03 09:01:57,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 152. [2024-11-03 09:01:57,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 116 states have (on average 1.1982758620689655) internal successors, (139), 119 states have internal predecessors, (139), 23 states have call successors, (23), 9 states have call predecessors, (23), 12 states have return successors, (44), 23 states have call predecessors, (44), 22 states have call successors, (44) [2024-11-03 09:01:57,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 206 transitions. [2024-11-03 09:01:57,569 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 206 transitions. Word has length 74 [2024-11-03 09:01:57,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:01:57,569 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 206 transitions. [2024-11-03 09:01:57,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.25) internal successors, (63), 28 states have internal predecessors, (63), 8 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-03 09:01:57,569 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 206 transitions. [2024-11-03 09:01:57,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-03 09:01:57,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:01:57,571 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-03 09:01:57,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-03 09:01:57,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:57,771 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:01:57,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:01:57,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1126803066, now seen corresponding path program 1 times [2024-11-03 09:01:57,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:01:57,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863422116] [2024-11-03 09:01:57,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:01:57,772 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:01:57,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:01:57,773 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:01:57,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-03 09:01:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:01:57,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-03 09:01:57,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:01:58,362 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-03 09:01:58,362 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:02:00,047 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-03 09:02:00,047 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:02:00,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863422116] [2024-11-03 09:02:00,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1863422116] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:02:00,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:02:00,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2024-11-03 09:02:00,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005817025] [2024-11-03 09:02:00,047 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:02:00,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-03 09:02:00,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:02:00,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-03 09:02:00,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=680, Unknown=0, NotChecked=0, Total=812 [2024-11-03 09:02:00,049 INFO L87 Difference]: Start difference. First operand 152 states and 206 transitions. Second operand has 29 states, 29 states have (on average 2.0689655172413794) internal successors, (60), 29 states have internal predecessors, (60), 9 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 9 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-03 09:02:01,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:02:01,532 INFO L93 Difference]: Finished difference Result 192 states and 262 transitions. [2024-11-03 09:02:01,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-03 09:02:01,533 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.0689655172413794) internal successors, (60), 29 states have internal predecessors, (60), 9 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 9 states have call predecessors, (12), 8 states have call successors, (12) Word has length 77 [2024-11-03 09:02:01,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:02:01,534 INFO L225 Difference]: With dead ends: 192 [2024-11-03 09:02:01,534 INFO L226 Difference]: Without dead ends: 171 [2024-11-03 09:02:01,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=206, Invalid=1054, Unknown=0, NotChecked=0, Total=1260 [2024-11-03 09:02:01,535 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 50 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-03 09:02:01,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 957 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-03 09:02:01,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-03 09:02:01,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 159. [2024-11-03 09:02:01,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 120 states have (on average 1.175) internal successors, (141), 124 states have internal predecessors, (141), 25 states have call successors, (25), 9 states have call predecessors, (25), 13 states have return successors, (54), 25 states have call predecessors, (54), 24 states have call successors, (54) [2024-11-03 09:02:01,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 220 transitions. [2024-11-03 09:02:01,574 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 220 transitions. Word has length 77 [2024-11-03 09:02:01,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:02:01,574 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 220 transitions. [2024-11-03 09:02:01,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.0689655172413794) internal successors, (60), 29 states have internal predecessors, (60), 9 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 9 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-03 09:02:01,575 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 220 transitions. [2024-11-03 09:02:01,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-03 09:02:01,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:02:01,576 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-03 09:02:01,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2024-11-03 09:02:01,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:02:01,780 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:02:01,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:02:01,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1449154486, now seen corresponding path program 2 times [2024-11-03 09:02:01,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:02:01,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605674843] [2024-11-03 09:02:01,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:02:01,781 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:02:01,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:02:01,782 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:02:01,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-03 09:02:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:02:01,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-03 09:02:01,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:02:02,420 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-03 09:02:02,420 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:02:03,962 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-03 09:02:03,963 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:02:03,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605674843] [2024-11-03 09:02:03,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1605674843] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:02:03,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:02:03,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2024-11-03 09:02:03,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099774021] [2024-11-03 09:02:03,963 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:02:03,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-03 09:02:03,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:02:03,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-03 09:02:03,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=686, Unknown=0, NotChecked=0, Total=812 [2024-11-03 09:02:03,965 INFO L87 Difference]: Start difference. First operand 159 states and 220 transitions. Second operand has 29 states, 29 states have (on average 2.0689655172413794) internal successors, (60), 29 states have internal predecessors, (60), 9 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 9 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-03 09:02:06,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:02:06,338 INFO L93 Difference]: Finished difference Result 187 states and 251 transitions. [2024-11-03 09:02:06,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-03 09:02:06,338 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.0689655172413794) internal successors, (60), 29 states have internal predecessors, (60), 9 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 9 states have call predecessors, (12), 8 states have call successors, (12) Word has length 77 [2024-11-03 09:02:06,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:02:06,339 INFO L225 Difference]: With dead ends: 187 [2024-11-03 09:02:06,339 INFO L226 Difference]: Without dead ends: 171 [2024-11-03 09:02:06,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=270, Invalid=1452, Unknown=0, NotChecked=0, Total=1722 [2024-11-03 09:02:06,340 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 62 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-03 09:02:06,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 933 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-03 09:02:06,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-03 09:02:06,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 159. [2024-11-03 09:02:06,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 120 states have (on average 1.1666666666666667) internal successors, (140), 124 states have internal predecessors, (140), 25 states have call successors, (25), 9 states have call predecessors, (25), 13 states have return successors, (51), 25 states have call predecessors, (51), 24 states have call successors, (51) [2024-11-03 09:02:06,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 216 transitions. [2024-11-03 09:02:06,368 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 216 transitions. Word has length 77 [2024-11-03 09:02:06,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:02:06,368 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 216 transitions. [2024-11-03 09:02:06,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.0689655172413794) internal successors, (60), 29 states have internal predecessors, (60), 9 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 9 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-03 09:02:06,369 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 216 transitions. [2024-11-03 09:02:06,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-03 09:02:06,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:02:06,370 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-03 09:02:06,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2024-11-03 09:02:06,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:02:06,571 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:02:06,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:02:06,571 INFO L85 PathProgramCache]: Analyzing trace with hash 2068625504, now seen corresponding path program 1 times [2024-11-03 09:02:06,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:02:06,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [340894262] [2024-11-03 09:02:06,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:02:06,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:02:06,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:02:06,573 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:02:06,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-03 09:02:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:02:06,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-03 09:02:06,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:02:06,962 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-03 09:02:06,962 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:02:07,909 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-03 09:02:07,910 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:02:07,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [340894262] [2024-11-03 09:02:07,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [340894262] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:02:07,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:02:07,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 26 [2024-11-03 09:02:07,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411262050] [2024-11-03 09:02:07,910 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:02:07,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-03 09:02:07,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:02:07,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-03 09:02:07,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2024-11-03 09:02:07,911 INFO L87 Difference]: Start difference. First operand 159 states and 216 transitions. Second operand has 26 states, 26 states have (on average 2.3076923076923075) internal successors, (60), 26 states have internal predecessors, (60), 9 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 9 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-03 09:02:08,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:02:08,880 INFO L93 Difference]: Finished difference Result 178 states and 236 transitions. [2024-11-03 09:02:08,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-03 09:02:08,880 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.3076923076923075) internal successors, (60), 26 states have internal predecessors, (60), 9 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 9 states have call predecessors, (12), 8 states have call successors, (12) Word has length 78 [2024-11-03 09:02:08,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:02:08,881 INFO L225 Difference]: With dead ends: 178 [2024-11-03 09:02:08,881 INFO L226 Difference]: Without dead ends: 136 [2024-11-03 09:02:08,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=171, Invalid=885, Unknown=0, NotChecked=0, Total=1056 [2024-11-03 09:02:08,882 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 44 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-03 09:02:08,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1068 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-03 09:02:08,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-03 09:02:08,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 123. [2024-11-03 09:02:08,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 91 states have (on average 1.1538461538461537) internal successors, (105), 95 states have internal predecessors, (105), 20 states have call successors, (20), 7 states have call predecessors, (20), 11 states have return successors, (44), 20 states have call predecessors, (44), 19 states have call successors, (44) [2024-11-03 09:02:08,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 169 transitions. [2024-11-03 09:02:08,911 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 169 transitions. Word has length 78 [2024-11-03 09:02:08,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:02:08,911 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 169 transitions. [2024-11-03 09:02:08,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.3076923076923075) internal successors, (60), 26 states have internal predecessors, (60), 9 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 9 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-03 09:02:08,911 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 169 transitions. [2024-11-03 09:02:08,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-03 09:02:08,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:02:08,912 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-03 09:02:08,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-11-03 09:02:09,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:02:09,113 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:02:09,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:02:09,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1678929915, now seen corresponding path program 1 times [2024-11-03 09:02:09,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:02:09,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [362944661] [2024-11-03 09:02:09,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:02:09,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:02:09,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:02:09,115 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:02:09,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-03 09:02:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:02:09,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-03 09:02:09,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:02:10,293 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-03 09:02:10,294 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:02:15,078 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-03 09:02:15,078 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:02:15,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [362944661] [2024-11-03 09:02:15,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [362944661] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:02:15,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:02:15,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 24] total 44 [2024-11-03 09:02:15,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427085415] [2024-11-03 09:02:15,078 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:02:15,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-03 09:02:15,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:02:15,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-03 09:02:15,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=1655, Unknown=0, NotChecked=0, Total=1892 [2024-11-03 09:02:15,080 INFO L87 Difference]: Start difference. First operand 123 states and 169 transitions. Second operand has 44 states, 42 states have (on average 1.7142857142857142) internal successors, (72), 41 states have internal predecessors, (72), 10 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (13), 11 states have call predecessors, (13), 9 states have call successors, (13) [2024-11-03 09:02:23,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:02:23,483 INFO L93 Difference]: Finished difference Result 159 states and 211 transitions. [2024-11-03 09:02:23,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-03 09:02:23,484 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 42 states have (on average 1.7142857142857142) internal successors, (72), 41 states have internal predecessors, (72), 10 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (13), 11 states have call predecessors, (13), 9 states have call successors, (13) Word has length 81 [2024-11-03 09:02:23,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:02:23,485 INFO L225 Difference]: With dead ends: 159 [2024-11-03 09:02:23,485 INFO L226 Difference]: Without dead ends: 145 [2024-11-03 09:02:23,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=565, Invalid=4127, Unknown=0, NotChecked=0, Total=4692 [2024-11-03 09:02:23,486 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 71 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-03 09:02:23,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 1261 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-03 09:02:23,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-03 09:02:23,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 134. [2024-11-03 09:02:23,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 101 states have (on average 1.1485148514851484) internal successors, (116), 103 states have internal predecessors, (116), 21 states have call successors, (21), 8 states have call predecessors, (21), 11 states have return successors, (44), 22 states have call predecessors, (44), 20 states have call successors, (44) [2024-11-03 09:02:23,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 181 transitions. [2024-11-03 09:02:23,513 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 181 transitions. Word has length 81 [2024-11-03 09:02:23,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:02:23,513 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 181 transitions. [2024-11-03 09:02:23,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 42 states have (on average 1.7142857142857142) internal successors, (72), 41 states have internal predecessors, (72), 10 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (13), 11 states have call predecessors, (13), 9 states have call successors, (13) [2024-11-03 09:02:23,513 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 181 transitions. [2024-11-03 09:02:23,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-03 09:02:23,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:02:23,515 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-03 09:02:23,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2024-11-03 09:02:23,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:02:23,715 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:02:23,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:02:23,716 INFO L85 PathProgramCache]: Analyzing trace with hash -823382364, now seen corresponding path program 2 times [2024-11-03 09:02:23,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:02:23,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147737613] [2024-11-03 09:02:23,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:02:23,716 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:02:23,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:02:23,719 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:02:23,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-11-03 09:02:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:02:23,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-03 09:02:23,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:02:24,192 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-03 09:02:24,192 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:02:25,175 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-03 09:02:25,175 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:02:25,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147737613] [2024-11-03 09:02:25,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1147737613] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:02:25,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:02:25,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 27 [2024-11-03 09:02:25,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811167291] [2024-11-03 09:02:25,176 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:02:25,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-03 09:02:25,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:02:25,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-03 09:02:25,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2024-11-03 09:02:25,177 INFO L87 Difference]: Start difference. First operand 134 states and 181 transitions. Second operand has 27 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 27 states have internal predecessors, (60), 9 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 9 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-03 09:02:25,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:02:25,998 INFO L93 Difference]: Finished difference Result 148 states and 195 transitions. [2024-11-03 09:02:25,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-03 09:02:25,999 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 27 states have internal predecessors, (60), 9 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 9 states have call predecessors, (12), 8 states have call successors, (12) Word has length 78 [2024-11-03 09:02:26,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:02:26,001 INFO L225 Difference]: With dead ends: 148 [2024-11-03 09:02:26,001 INFO L226 Difference]: Without dead ends: 119 [2024-11-03 09:02:26,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=188, Invalid=1002, Unknown=0, NotChecked=0, Total=1190 [2024-11-03 09:02:26,002 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 39 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-03 09:02:26,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 707 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-03 09:02:26,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-03 09:02:26,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 111. [2024-11-03 09:02:26,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 82 states have (on average 1.1585365853658536) internal successors, (95), 85 states have internal predecessors, (95), 18 states have call successors, (18), 6 states have call predecessors, (18), 10 states have return successors, (40), 19 states have call predecessors, (40), 17 states have call successors, (40) [2024-11-03 09:02:26,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 153 transitions. [2024-11-03 09:02:26,022 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 153 transitions. Word has length 78 [2024-11-03 09:02:26,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:02:26,023 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 153 transitions. [2024-11-03 09:02:26,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 27 states have internal predecessors, (60), 9 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 9 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-03 09:02:26,023 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 153 transitions. [2024-11-03 09:02:26,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-03 09:02:26,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:02:26,024 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-03 09:02:26,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2024-11-03 09:02:26,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:02:26,225 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:02:26,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:02:26,225 INFO L85 PathProgramCache]: Analyzing trace with hash -2063078729, now seen corresponding path program 2 times [2024-11-03 09:02:26,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:02:26,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [110448601] [2024-11-03 09:02:26,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:02:26,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:02:26,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:02:26,228 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:02:26,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-11-03 09:02:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:02:26,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-03 09:02:26,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:02:27,411 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-03 09:02:27,411 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:02:31,982 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-03 09:02:31,982 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:02:31,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [110448601] [2024-11-03 09:02:31,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [110448601] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 09:02:31,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 09:02:31,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 24] total 44 [2024-11-03 09:02:31,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674098303] [2024-11-03 09:02:31,983 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 09:02:31,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-03 09:02:31,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:02:31,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-03 09:02:31,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=1665, Unknown=0, NotChecked=0, Total=1892 [2024-11-03 09:02:31,984 INFO L87 Difference]: Start difference. First operand 111 states and 153 transitions. Second operand has 44 states, 42 states have (on average 1.7142857142857142) internal successors, (72), 41 states have internal predecessors, (72), 10 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (13), 11 states have call predecessors, (13), 9 states have call successors, (13) [2024-11-03 09:02:44,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:02:44,207 INFO L93 Difference]: Finished difference Result 153 states and 201 transitions. [2024-11-03 09:02:44,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-03 09:02:44,208 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 42 states have (on average 1.7142857142857142) internal successors, (72), 41 states have internal predecessors, (72), 10 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (13), 11 states have call predecessors, (13), 9 states have call successors, (13) Word has length 81 [2024-11-03 09:02:44,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:02:44,209 INFO L225 Difference]: With dead ends: 153 [2024-11-03 09:02:44,209 INFO L226 Difference]: Without dead ends: 139 [2024-11-03 09:02:44,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=489, Invalid=3801, Unknown=0, NotChecked=0, Total=4290 [2024-11-03 09:02:44,210 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 52 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-03 09:02:44,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1174 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-03 09:02:44,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-03 09:02:44,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 120. [2024-11-03 09:02:44,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 90 states have (on average 1.1555555555555554) internal successors, (104), 92 states have internal predecessors, (104), 19 states have call successors, (19), 7 states have call predecessors, (19), 10 states have return successors, (40), 20 states have call predecessors, (40), 18 states have call successors, (40) [2024-11-03 09:02:44,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 163 transitions. [2024-11-03 09:02:44,234 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 163 transitions. Word has length 81 [2024-11-03 09:02:44,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:02:44,234 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 163 transitions. [2024-11-03 09:02:44,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 42 states have (on average 1.7142857142857142) internal successors, (72), 41 states have internal predecessors, (72), 10 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (13), 11 states have call predecessors, (13), 9 states have call successors, (13) [2024-11-03 09:02:44,234 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 163 transitions. [2024-11-03 09:02:44,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-03 09:02:44,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:02:44,235 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-03 09:02:44,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-11-03 09:02:44,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:02:44,436 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:02:44,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:02:44,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1233090787, now seen corresponding path program 1 times [2024-11-03 09:02:44,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:02:44,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [134745920] [2024-11-03 09:02:44,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:02:44,437 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:02:44,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:02:44,438 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:02:44,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-11-03 09:02:44,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:02:44,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-03 09:02:44,497 INFO L278 TraceCheckSpWp]: Computing forward predicates...