/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/hardness-nfm22/hardness_operatoramount_amount100_file-39.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-df9f019-m [2024-11-05 19:24:17,963 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 19:24:18,003 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-05 19:24:18,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 19:24:18,007 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 19:24:18,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 19:24:18,021 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 19:24:18,021 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 19:24:18,022 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 19:24:18,022 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 19:24:18,022 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 19:24:18,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 19:24:18,023 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 19:24:18,023 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 19:24:18,024 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 19:24:18,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 19:24:18,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 19:24:18,024 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 19:24:18,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 19:24:18,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 19:24:18,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 19:24:18,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 19:24:18,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 19:24:18,026 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 19:24:18,027 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 19:24:18,027 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 19:24:18,027 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 19:24:18,027 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 19:24:18,027 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 19:24:18,028 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 19:24:18,028 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 19:24:18,028 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 19:24:18,028 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 19:24:18,029 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 19:24:18,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 19:24:18,029 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 19:24:18,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 19:24:18,029 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 19:24:18,030 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 19:24:18,030 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 19:24:18,030 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 19:24:18,032 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 19:24:18,033 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 19:24:18,033 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 19:24:18,033 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:24:18,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 19:24:18,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 19:24:18,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 19:24:18,232 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 19:24:18,232 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 19:24:18,233 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-39.i [2024-11-05 19:24:19,467 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 19:24:19,633 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 19:24:19,633 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-39.i [2024-11-05 19:24:19,642 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8340d66c6/21ad356570c64a92a04b5a5a03bcd1e5/FLAGd51b1839d [2024-11-05 19:24:19,658 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8340d66c6/21ad356570c64a92a04b5a5a03bcd1e5 [2024-11-05 19:24:19,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 19:24:19,661 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 19:24:19,662 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 19:24:19,662 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 19:24:19,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 19:24:19,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:24:19" (1/1) ... [2024-11-05 19:24:19,667 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79e95a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:24:19, skipping insertion in model container [2024-11-05 19:24:19,667 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:24:19" (1/1) ... [2024-11-05 19:24:19,691 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 19:24:19,833 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-39.i[916,929] [2024-11-05 19:24:19,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 19:24:19,927 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 19:24:19,936 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-39.i[916,929] [2024-11-05 19:24:19,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 19:24:19,999 INFO L204 MainTranslator]: Completed translation [2024-11-05 19:24:20,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:24:19 WrapperNode [2024-11-05 19:24:20,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 19:24:20,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 19:24:20,002 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 19:24:20,002 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 19:24:20,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:24:19" (1/1) ... [2024-11-05 19:24:20,018 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:24:19" (1/1) ... [2024-11-05 19:24:20,053 INFO L138 Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 196 [2024-11-05 19:24:20,053 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 19:24:20,054 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 19:24:20,054 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 19:24:20,054 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 19:24:20,066 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:24:19" (1/1) ... [2024-11-05 19:24:20,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:24:19" (1/1) ... [2024-11-05 19:24:20,069 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:24:19" (1/1) ... [2024-11-05 19:24:20,080 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]. [2024-11-05 19:24:20,081 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:24:19" (1/1) ... [2024-11-05 19:24:20,081 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:24:19" (1/1) ... [2024-11-05 19:24:20,088 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:24:19" (1/1) ... [2024-11-05 19:24:20,091 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:24:19" (1/1) ... [2024-11-05 19:24:20,093 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:24:19" (1/1) ... [2024-11-05 19:24:20,095 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:24:19" (1/1) ... [2024-11-05 19:24:20,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 19:24:20,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 19:24:20,098 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 19:24:20,098 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 19:24:20,099 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:24:19" (1/1) ... [2024-11-05 19:24:20,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 19:24:20,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 19:24:20,133 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) [2024-11-05 19:24:20,145 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 [2024-11-05 19:24:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 19:24:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 19:24:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 19:24:20,161 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 19:24:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 19:24:20,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 19:24:20,239 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 19:24:20,241 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 19:24:24,773 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-05 19:24:24,774 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 19:24:24,790 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 19:24:24,790 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 19:24:24,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:24:24 BoogieIcfgContainer [2024-11-05 19:24:24,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 19:24:24,795 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 19:24:24,795 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 19:24:24,798 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 19:24:24,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:24:19" (1/3) ... [2024-11-05 19:24:24,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c381565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:24:24, skipping insertion in model container [2024-11-05 19:24:24,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:24:19" (2/3) ... [2024-11-05 19:24:24,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c381565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:24:24, skipping insertion in model container [2024-11-05 19:24:24,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:24:24" (3/3) ... [2024-11-05 19:24:24,800 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-39.i [2024-11-05 19:24:24,813 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 19:24:24,814 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 19:24:24,859 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 19:24:24,864 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;@380a4125, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 19:24:24,864 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 19:24:24,869 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 58 states have (on average 1.4310344827586208) internal successors, (83), 59 states have internal predecessors, (83), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-05 19:24:24,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-05 19:24:24,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:24:24,879 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:24:24,880 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:24:24,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:24:24,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1822079040, now seen corresponding path program 1 times [2024-11-05 19:24:24,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:24:24,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267445619] [2024-11-05 19:24:24,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:24:24,891 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 [2024-11-05 19:24:24,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:24:24,895 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) [2024-11-05 19:24:24,896 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 [2024-11-05 19:24:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:24:25,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 19:24:25,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:24:25,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 566 proven. 0 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2024-11-05 19:24:25,402 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:24:25,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 20 proven. 26 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2024-11-05 19:24:25,671 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:24:25,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267445619] [2024-11-05 19:24:25,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1267445619] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 19:24:25,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 19:24:25,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-05 19:24:25,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665702084] [2024-11-05 19:24:25,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 19:24:25,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 19:24:25,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:24:25,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 19:24:25,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 19:24:25,709 INFO L87 Difference]: Start difference. First operand has 85 states, 58 states have (on average 1.4310344827586208) internal successors, (83), 59 states have internal predecessors, (83), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-05 19:24:25,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:24:25,739 INFO L93 Difference]: Finished difference Result 163 states and 280 transitions. [2024-11-05 19:24:25,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 19:24:25,741 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 163 [2024-11-05 19:24:25,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:24:25,750 INFO L225 Difference]: With dead ends: 163 [2024-11-05 19:24:25,750 INFO L226 Difference]: Without dead ends: 81 [2024-11-05 19:24:25,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 19:24:25,758 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 19:24:25,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 19:24:25,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-05 19:24:25,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-11-05 19:24:25,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 55 states have internal predecessors, (76), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-05 19:24:25,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 124 transitions. [2024-11-05 19:24:25,793 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 124 transitions. Word has length 163 [2024-11-05 19:24:25,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:24:25,793 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 124 transitions. [2024-11-05 19:24:25,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-05 19:24:25,794 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 124 transitions. [2024-11-05 19:24:25,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-05 19:24:25,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:24:25,796 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:24:25,812 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 (2)] Ended with exit code 0 [2024-11-05 19:24:25,997 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 [2024-11-05 19:24:25,997 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:24:25,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:24:25,998 INFO L85 PathProgramCache]: Analyzing trace with hash 968921588, now seen corresponding path program 1 times [2024-11-05 19:24:25,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:24:25,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146670078] [2024-11-05 19:24:25,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:24:25,999 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 [2024-11-05 19:24:26,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:24:26,002 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) [2024-11-05 19:24:26,003 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 [2024-11-05 19:24:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:24:26,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-05 19:24:26,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:24:26,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 533 proven. 24 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2024-11-05 19:24:26,854 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:24:27,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 45 proven. 24 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2024-11-05 19:24:27,313 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:24:27,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1146670078] [2024-11-05 19:24:27,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1146670078] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 19:24:27,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 19:24:27,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-11-05 19:24:27,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954635758] [2024-11-05 19:24:27,314 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 19:24:27,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-05 19:24:27,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:24:27,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-05 19:24:27,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-05 19:24:27,320 INFO L87 Difference]: Start difference. First operand 81 states and 124 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-05 19:24:31,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.42s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:24:33,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:24:33,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:24:33,738 INFO L93 Difference]: Finished difference Result 167 states and 252 transitions. [2024-11-05 19:24:33,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-05 19:24:33,773 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 163 [2024-11-05 19:24:33,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:24:33,775 INFO L225 Difference]: With dead ends: 167 [2024-11-05 19:24:33,777 INFO L226 Difference]: Without dead ends: 89 [2024-11-05 19:24:33,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 318 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2024-11-05 19:24:33,779 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 207 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-05 19:24:33,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 221 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-05 19:24:33,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-05 19:24:33,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 85. [2024-11-05 19:24:33,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 58 states have internal predecessors, (77), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-05 19:24:33,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 125 transitions. [2024-11-05 19:24:33,790 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 125 transitions. Word has length 163 [2024-11-05 19:24:33,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:24:33,791 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 125 transitions. [2024-11-05 19:24:33,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-05 19:24:33,791 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 125 transitions. [2024-11-05 19:24:33,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-05 19:24:33,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:24:33,793 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:24:33,811 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 (3)] Ended with exit code 0 [2024-11-05 19:24:33,996 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 [2024-11-05 19:24:33,997 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:24:33,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:24:33,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1187776306, now seen corresponding path program 1 times [2024-11-05 19:24:33,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:24:33,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [295578835] [2024-11-05 19:24:33,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:24:33,998 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 [2024-11-05 19:24:33,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:24:34,001 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) [2024-11-05 19:24:34,002 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 [2024-11-05 19:24:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:24:34,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-05 19:24:34,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:24:34,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 563 proven. 39 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2024-11-05 19:24:34,883 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:24:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 30 proven. 39 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2024-11-05 19:24:35,812 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:24:35,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [295578835] [2024-11-05 19:24:35,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [295578835] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 19:24:35,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 19:24:35,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-05 19:24:35,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520070720] [2024-11-05 19:24:35,812 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 19:24:35,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-05 19:24:35,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:24:35,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-05 19:24:35,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-05 19:24:35,814 INFO L87 Difference]: Start difference. First operand 85 states and 125 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 3 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-05 19:24:39,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:24:39,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:24:39,511 INFO L93 Difference]: Finished difference Result 175 states and 254 transitions. [2024-11-05 19:24:39,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-05 19:24:39,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 3 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 163 [2024-11-05 19:24:39,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:24:39,547 INFO L225 Difference]: With dead ends: 175 [2024-11-05 19:24:39,547 INFO L226 Difference]: Without dead ends: 93 [2024-11-05 19:24:39,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-11-05 19:24:39,549 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 207 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-05 19:24:39,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 224 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-05 19:24:39,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-05 19:24:39,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 89. [2024-11-05 19:24:39,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 61 states have (on average 1.278688524590164) internal successors, (78), 61 states have internal predecessors, (78), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-05 19:24:39,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 126 transitions. [2024-11-05 19:24:39,559 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 126 transitions. Word has length 163 [2024-11-05 19:24:39,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:24:39,559 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 126 transitions. [2024-11-05 19:24:39,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 3 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-05 19:24:39,559 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 126 transitions. [2024-11-05 19:24:39,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-05 19:24:39,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:24:39,561 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:24:39,577 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 (4)] Ended with exit code 0 [2024-11-05 19:24:39,761 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 [2024-11-05 19:24:39,762 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:24:39,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:24:39,762 INFO L85 PathProgramCache]: Analyzing trace with hash 129487481, now seen corresponding path program 1 times [2024-11-05 19:24:39,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:24:39,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324696596] [2024-11-05 19:24:39,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:24:39,763 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 [2024-11-05 19:24:39,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:24:39,765 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) [2024-11-05 19:24:39,766 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 [2024-11-05 19:24:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:24:40,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-05 19:24:40,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:24:41,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 219 proven. 123 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2024-11-05 19:24:41,720 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:24:43,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 9 proven. 126 refuted. 0 times theorem prover too weak. 969 trivial. 0 not checked. [2024-11-05 19:24:43,295 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:24:43,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324696596] [2024-11-05 19:24:43,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1324696596] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 19:24:43,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 19:24:43,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2024-11-05 19:24:43,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430903560] [2024-11-05 19:24:43,296 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 19:24:43,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-05 19:24:43,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:24:43,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-05 19:24:43,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2024-11-05 19:24:43,301 INFO L87 Difference]: Start difference. First operand 89 states and 126 transitions. Second operand has 20 states, 20 states have (on average 4.85) internal successors, (97), 20 states have internal predecessors, (97), 5 states have call successors, (46), 3 states have call predecessors, (46), 7 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2024-11-05 19:24:48,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.40s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:24:52,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:24:52,438 INFO L93 Difference]: Finished difference Result 375 states and 510 transitions. [2024-11-05 19:24:52,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-05 19:24:52,439 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.85) internal successors, (97), 20 states have internal predecessors, (97), 5 states have call successors, (46), 3 states have call predecessors, (46), 7 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) Word has length 164 [2024-11-05 19:24:52,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:24:52,443 INFO L225 Difference]: With dead ends: 375 [2024-11-05 19:24:52,443 INFO L226 Difference]: Without dead ends: 289 [2024-11-05 19:24:52,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 311 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=725, Invalid=2355, Unknown=0, NotChecked=0, Total=3080 [2024-11-05 19:24:52,446 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 478 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-05 19:24:52,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 624 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-05 19:24:52,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-05 19:24:52,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 189. [2024-11-05 19:24:52,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 130 states have (on average 1.2538461538461538) internal successors, (163), 130 states have internal predecessors, (163), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-05 19:24:52,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 259 transitions. [2024-11-05 19:24:52,479 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 259 transitions. Word has length 164 [2024-11-05 19:24:52,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:24:52,480 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 259 transitions. [2024-11-05 19:24:52,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.85) internal successors, (97), 20 states have internal predecessors, (97), 5 states have call successors, (46), 3 states have call predecessors, (46), 7 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2024-11-05 19:24:52,481 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 259 transitions. [2024-11-05 19:24:52,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-05 19:24:52,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:24:52,483 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:24:52,504 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 (5)] Forceful destruction successful, exit code 0 [2024-11-05 19:24:52,687 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 [2024-11-05 19:24:52,688 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:24:52,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:24:52,689 INFO L85 PathProgramCache]: Analyzing trace with hash 348342199, now seen corresponding path program 1 times [2024-11-05 19:24:52,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:24:52,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1459554382] [2024-11-05 19:24:52,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:24:52,690 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 [2024-11-05 19:24:52,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:24:52,691 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) [2024-11-05 19:24:52,692 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 [2024-11-05 19:24:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:24:53,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-05 19:24:53,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:24:54,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-05 19:24:54,019 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:24:54,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-05 19:24:54,494 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:24:54,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1459554382] [2024-11-05 19:24:54,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1459554382] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 19:24:54,495 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 19:24:54,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2024-11-05 19:24:54,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149667520] [2024-11-05 19:24:54,495 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 19:24:54,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-05 19:24:54,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:24:54,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-05 19:24:54,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-05 19:24:54,496 INFO L87 Difference]: Start difference. First operand 189 states and 259 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-05 19:24:57,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-05 19:24:57,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:24:57,981 INFO L93 Difference]: Finished difference Result 377 states and 516 transitions. [2024-11-05 19:24:58,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-05 19:24:58,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 164 [2024-11-05 19:24:58,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:24:58,015 INFO L225 Difference]: With dead ends: 377 [2024-11-05 19:24:58,015 INFO L226 Difference]: Without dead ends: 191 [2024-11-05 19:24:58,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-05 19:24:58,020 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 64 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-05 19:24:58,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 565 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-05 19:24:58,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-05 19:24:58,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 97. [2024-11-05 19:24:58,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 67 states have internal predecessors, (83), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-05 19:24:58,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 131 transitions. [2024-11-05 19:24:58,041 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 131 transitions. Word has length 164 [2024-11-05 19:24:58,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:24:58,041 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 131 transitions. [2024-11-05 19:24:58,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-05 19:24:58,041 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 131 transitions. [2024-11-05 19:24:58,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-05 19:24:58,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:24:58,045 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:24:58,062 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 [2024-11-05 19:24:58,245 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 [2024-11-05 19:24:58,246 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:24:58,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:24:58,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1966534190, now seen corresponding path program 1 times [2024-11-05 19:24:58,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:24:58,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1681067326] [2024-11-05 19:24:58,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:24:58,248 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 [2024-11-05 19:24:58,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:24:58,250 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) [2024-11-05 19:24:58,251 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 [2024-11-05 19:24:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:24:58,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-05 19:24:58,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:25:05,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 585 proven. 201 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-05 19:25:05,070 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:25:16,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 57 proven. 141 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2024-11-05 19:25:16,399 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:25:16,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1681067326] [2024-11-05 19:25:16,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1681067326] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 19:25:16,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 19:25:16,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16] total 34 [2024-11-05 19:25:16,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743611318] [2024-11-05 19:25:16,401 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 19:25:16,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-05 19:25:16,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:25:16,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-05 19:25:16,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2024-11-05 19:25:16,404 INFO L87 Difference]: Start difference. First operand 97 states and 131 transitions. Second operand has 34 states, 33 states have (on average 3.787878787878788) internal successors, (125), 32 states have internal predecessors, (125), 12 states have call successors, (48), 7 states have call predecessors, (48), 13 states have return successors, (48), 10 states have call predecessors, (48), 12 states have call successors, (48) [2024-11-05 19:25:33,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:25:37,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:25:39,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-05 19:25:43,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]