/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-76.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-df9f019-m [2024-11-05 19:29:49,622 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 19:29:49,665 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 19:29:49,669 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 19:29:49,669 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 19:29:49,696 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 19:29:49,696 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 19:29:49,697 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 19:29:49,697 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 19:29:49,697 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 19:29:49,698 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 19:29:49,698 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 19:29:49,699 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 19:29:49,700 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 19:29:49,700 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 19:29:49,700 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 19:29:49,700 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 19:29:49,701 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 19:29:49,701 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 19:29:49,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 19:29:49,701 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 19:29:49,704 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 19:29:49,704 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 19:29:49,704 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 19:29:49,706 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 19:29:49,706 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 19:29:49,707 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 19:29:49,707 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 19:29:49,707 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 19:29:49,707 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 19:29:49,707 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 19:29:49,708 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 19:29:49,708 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 19:29:49,708 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 19:29:49,708 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 19:29:49,708 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 19:29:49,708 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 19:29:49,708 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 19:29:49,709 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 19:29:49,709 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 19:29:49,709 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 19:29:49,711 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 19:29:49,711 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 19:29:49,711 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 19:29:49,711 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:29:49,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 19:29:49,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 19:29:49,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 19:29:49,971 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 19:29:49,972 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 19:29:49,973 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-76.i [2024-11-05 19:29:51,345 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 19:29:51,557 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 19:29:51,558 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-76.i [2024-11-05 19:29:51,570 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38f9b8fd8/5ceadb3cbb0845af8b5de1b64227cb5f/FLAG7bf2fd349 [2024-11-05 19:29:51,913 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38f9b8fd8/5ceadb3cbb0845af8b5de1b64227cb5f [2024-11-05 19:29:51,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 19:29:51,918 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 19:29:51,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 19:29:51,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 19:29:51,926 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 19:29:51,926 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:29:51" (1/1) ... [2024-11-05 19:29:51,927 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52fd98cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:29:51, skipping insertion in model container [2024-11-05 19:29:51,927 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:29:51" (1/1) ... [2024-11-05 19:29:51,962 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 19:29:52,118 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-76.i[916,929] [2024-11-05 19:29:52,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 19:29:52,247 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 19:29:52,263 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-76.i[916,929] [2024-11-05 19:29:52,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 19:29:52,333 INFO L204 MainTranslator]: Completed translation [2024-11-05 19:29:52,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:29:52 WrapperNode [2024-11-05 19:29:52,334 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 19:29:52,337 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 19:29:52,337 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 19:29:52,338 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 19:29:52,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:29:52" (1/1) ... [2024-11-05 19:29:52,355 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:29:52" (1/1) ... [2024-11-05 19:29:52,380 INFO L138 Inliner]: procedures = 27, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 220 [2024-11-05 19:29:52,380 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 19:29:52,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 19:29:52,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 19:29:52,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 19:29:52,389 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:29:52" (1/1) ... [2024-11-05 19:29:52,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:29:52" (1/1) ... [2024-11-05 19:29:52,399 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:29:52" (1/1) ... [2024-11-05 19:29:52,418 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 19:29:52,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:29:52" (1/1) ... [2024-11-05 19:29:52,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:29:52" (1/1) ... [2024-11-05 19:29:52,427 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:29:52" (1/1) ... [2024-11-05 19:29:52,430 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:29:52" (1/1) ... [2024-11-05 19:29:52,431 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:29:52" (1/1) ... [2024-11-05 19:29:52,433 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:29:52" (1/1) ... [2024-11-05 19:29:52,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 19:29:52,443 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 19:29:52,443 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 19:29:52,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 19:29:52,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:29:52" (1/1) ... [2024-11-05 19:29:52,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 19:29:52,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 19:29:52,481 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 19:29:52,485 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 19:29:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 19:29:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 19:29:52,509 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 19:29:52,509 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 19:29:52,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 19:29:52,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 19:29:52,598 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 19:29:52,600 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 19:30:05,228 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-05 19:30:05,228 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 19:30:05,243 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 19:30:05,243 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 19:30:05,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:30:05 BoogieIcfgContainer [2024-11-05 19:30:05,244 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 19:30:05,245 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 19:30:05,246 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 19:30:05,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 19:30:05,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:29:51" (1/3) ... [2024-11-05 19:30:05,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a5c64a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:30:05, skipping insertion in model container [2024-11-05 19:30:05,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:29:52" (2/3) ... [2024-11-05 19:30:05,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a5c64a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:30:05, skipping insertion in model container [2024-11-05 19:30:05,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:30:05" (3/3) ... [2024-11-05 19:30:05,250 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-76.i [2024-11-05 19:30:05,262 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 19:30:05,262 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 19:30:05,308 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 19:30:05,312 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;@30f6915f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 19:30:05,313 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 19:30:05,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 63 states have internal predecessors, (85), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-05 19:30:05,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-05 19:30:05,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:30:05,327 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:05,327 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:30:05,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:30:05,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1820935452, now seen corresponding path program 1 times [2024-11-05 19:30:05,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:30:05,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889547182] [2024-11-05 19:30:05,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:30:05,340 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 19:30:05,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:30:05,343 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 19:30:05,347 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 19:30:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:30:06,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 19:30:06,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:30:06,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 734 proven. 0 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2024-11-05 19:30:06,202 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:30:07,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 14 proven. 48 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked. [2024-11-05 19:30:07,386 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:30:07,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889547182] [2024-11-05 19:30:07,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1889547182] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 19:30:07,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 19:30:07,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-05 19:30:07,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390287742] [2024-11-05 19:30:07,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 19:30:07,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 19:30:07,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:30:07,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 19:30:07,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 19:30:07,411 INFO L87 Difference]: Start difference. First operand has 97 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 63 states have internal predecessors, (85), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-05 19:30:07,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:30:07,433 INFO L93 Difference]: Finished difference Result 187 states and 324 transitions. [2024-11-05 19:30:07,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 19:30:07,435 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 210 [2024-11-05 19:30:07,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:30:07,441 INFO L225 Difference]: With dead ends: 187 [2024-11-05 19:30:07,441 INFO L226 Difference]: Without dead ends: 93 [2024-11-05 19:30:07,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 418 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 19:30:07,447 INFO L432 NwaCegarLoop]: 142 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, 142 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 19:30:07,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 19:30:07,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-05 19:30:07,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-05 19:30:07,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 59 states have internal predecessors, (78), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-05 19:30:07,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 142 transitions. [2024-11-05 19:30:07,500 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 142 transitions. Word has length 210 [2024-11-05 19:30:07,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:30:07,501 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 142 transitions. [2024-11-05 19:30:07,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-05 19:30:07,501 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 142 transitions. [2024-11-05 19:30:07,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-05 19:30:07,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:30:07,506 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:07,558 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 19:30:07,707 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 19:30:07,708 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:30:07,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:30:07,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1559379676, now seen corresponding path program 1 times [2024-11-05 19:30:07,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:30:07,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832088621] [2024-11-05 19:30:07,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:30:07,709 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 19:30:07,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:30:07,713 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 19:30:07,714 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 19:30:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:30:08,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-05 19:30:08,491 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:30:13,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 808 proven. 132 refuted. 0 times theorem prover too weak. 1044 trivial. 0 not checked. [2024-11-05 19:30:13,967 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:30:16,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 24 proven. 69 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2024-11-05 19:30:16,642 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:30:16,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1832088621] [2024-11-05 19:30:16,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1832088621] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 19:30:16,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 19:30:16,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 12 [2024-11-05 19:30:16,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090467285] [2024-11-05 19:30:16,647 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 19:30:16,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-05 19:30:16,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:30:16,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-05 19:30:16,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-05 19:30:16,655 INFO L87 Difference]: Start difference. First operand 93 states and 142 transitions. Second operand has 12 states, 12 states have (on average 7.416666666666667) internal successors, (89), 12 states have internal predecessors, (89), 3 states have call successors, (55), 3 states have call predecessors, (55), 5 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2024-11-05 19:30:24,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:30:28,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:30:32,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:30:36,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:30:40,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:30:44,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:30:48,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:30:49,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:30:49,255 INFO L93 Difference]: Finished difference Result 209 states and 313 transitions. [2024-11-05 19:30:49,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-05 19:30:49,259 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.416666666666667) internal successors, (89), 12 states have internal predecessors, (89), 3 states have call successors, (55), 3 states have call predecessors, (55), 5 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 210 [2024-11-05 19:30:49,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:30:49,262 INFO L225 Difference]: With dead ends: 209 [2024-11-05 19:30:49,262 INFO L226 Difference]: Without dead ends: 119 [2024-11-05 19:30:49,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 407 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-05 19:30:49,266 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 154 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 46 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.9s IncrementalHoareTripleChecker+Time [2024-11-05 19:30:49,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 506 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 307 Invalid, 7 Unknown, 0 Unchecked, 31.9s Time] [2024-11-05 19:30:49,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-05 19:30:49,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 114. [2024-11-05 19:30:49,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 70 states have (on average 1.2571428571428571) internal successors, (88), 71 states have internal predecessors, (88), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-05 19:30:49,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 168 transitions. [2024-11-05 19:30:49,300 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 168 transitions. Word has length 210 [2024-11-05 19:30:49,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:30:49,301 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 168 transitions. [2024-11-05 19:30:49,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.416666666666667) internal successors, (89), 12 states have internal predecessors, (89), 3 states have call successors, (55), 3 states have call predecessors, (55), 5 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2024-11-05 19:30:49,302 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 168 transitions. [2024-11-05 19:30:49,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-05 19:30:49,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:30:49,306 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:49,345 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 [2024-11-05 19:30:49,507 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 19:30:49,511 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:30:49,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:30:49,512 INFO L85 PathProgramCache]: Analyzing trace with hash -2084641586, now seen corresponding path program 1 times [2024-11-05 19:30:49,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:30:49,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034676854] [2024-11-05 19:30:49,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:30:49,513 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 19:30:49,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:30:49,515 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 19:30:49,517 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 19:30:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:30:50,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-05 19:30:50,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:30:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 687 proven. 147 refuted. 0 times theorem prover too weak. 1150 trivial. 0 not checked. [2024-11-05 19:30:57,057 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:31:01,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 33 proven. 150 refuted. 0 times theorem prover too weak. 1801 trivial. 0 not checked. [2024-11-05 19:31:01,407 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:31:01,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034676854] [2024-11-05 19:31:01,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2034676854] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 19:31:01,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 19:31:01,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2024-11-05 19:31:01,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667905307] [2024-11-05 19:31:01,407 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 19:31:01,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-05 19:31:01,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:31:01,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-05 19:31:01,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-05 19:31:01,409 INFO L87 Difference]: Start difference. First operand 114 states and 168 transitions. Second operand has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (58), 3 states have call predecessors, (58), 7 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2024-11-05 19:31:10,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:31:14,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:31:18,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:31:22,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:31:26,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:31:30,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:31:34,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:31:38,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []