/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-3.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 07:55:06,801 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 07:55:06,841 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 07:55:06,846 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 07:55:06,847 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 07:55:06,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 07:55:06,868 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 07:55:06,868 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 07:55:06,868 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 07:55:06,869 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 07:55:06,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 07:55:06,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 07:55:06,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 07:55:06,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 07:55:06,870 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 07:55:06,870 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 07:55:06,870 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 07:55:06,871 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 07:55:06,871 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 07:55:06,871 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 07:55:06,871 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 07:55:06,874 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 07:55:06,874 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 07:55:06,874 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 07:55:06,874 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 07:55:06,874 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 07:55:06,874 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 07:55:06,875 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 07:55:06,875 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 07:55:06,875 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 07:55:06,875 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 07:55:06,875 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 07:55:06,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 07:55:06,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 07:55:06,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 07:55:06,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 07:55:06,876 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 07:55:06,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 07:55:06,877 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 07:55:06,877 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 07:55:06,880 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 07:55:06,880 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 07:55:06,880 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 07:55:06,880 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 07:55:06,880 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:55:07,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 07:55:07,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 07:55:07,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 07:55:07,087 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 07:55:07,087 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 07:55:07,088 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-3.i [2024-11-03 07:55:08,344 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 07:55:08,510 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 07:55:08,510 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-3.i [2024-11-03 07:55:08,519 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/287cb382b/019a862cd53d40cfb5f411b4f20a9068/FLAGe642491ac [2024-11-03 07:55:08,894 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/287cb382b/019a862cd53d40cfb5f411b4f20a9068 [2024-11-03 07:55:08,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 07:55:08,897 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 07:55:08,901 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 07:55:08,902 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 07:55:08,905 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 07:55:08,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:55:08" (1/1) ... [2024-11-03 07:55:08,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b976904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:08, skipping insertion in model container [2024-11-03 07:55:08,906 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:55:08" (1/1) ... [2024-11-03 07:55:08,935 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 07:55:09,061 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-3.i[915,928] [2024-11-03 07:55:09,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 07:55:09,126 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 07:55:09,135 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-3.i[915,928] [2024-11-03 07:55:09,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 07:55:09,183 INFO L204 MainTranslator]: Completed translation [2024-11-03 07:55:09,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:09 WrapperNode [2024-11-03 07:55:09,184 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 07:55:09,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 07:55:09,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 07:55:09,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 07:55:09,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:09" (1/1) ... [2024-11-03 07:55:09,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:09" (1/1) ... [2024-11-03 07:55:09,226 INFO L138 Inliner]: procedures = 27, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 210 [2024-11-03 07:55:09,227 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 07:55:09,227 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 07:55:09,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 07:55:09,228 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 07:55:09,239 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:09" (1/1) ... [2024-11-03 07:55:09,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:09" (1/1) ... [2024-11-03 07:55:09,249 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:09" (1/1) ... [2024-11-03 07:55:09,261 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-03 07:55:09,261 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:09" (1/1) ... [2024-11-03 07:55:09,262 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:09" (1/1) ... [2024-11-03 07:55:09,270 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:09" (1/1) ... [2024-11-03 07:55:09,272 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:09" (1/1) ... [2024-11-03 07:55:09,274 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:09" (1/1) ... [2024-11-03 07:55:09,276 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:09" (1/1) ... [2024-11-03 07:55:09,279 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 07:55:09,279 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 07:55:09,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 07:55:09,279 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 07:55:09,280 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:09" (1/1) ... [2024-11-03 07:55:09,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 07:55:09,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 07:55:09,307 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-03 07:55:09,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-03 07:55:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 07:55:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 07:55:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 07:55:09,343 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 07:55:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 07:55:09,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 07:55:09,411 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 07:55:09,412 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 07:55:15,125 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-03 07:55:15,126 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 07:55:15,136 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 07:55:15,137 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 07:55:15,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:55:15 BoogieIcfgContainer [2024-11-03 07:55:15,138 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 07:55:15,139 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 07:55:15,139 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 07:55:15,141 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 07:55:15,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 07:55:08" (1/3) ... [2024-11-03 07:55:15,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20493e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:55:15, skipping insertion in model container [2024-11-03 07:55:15,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:09" (2/3) ... [2024-11-03 07:55:15,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20493e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:55:15, skipping insertion in model container [2024-11-03 07:55:15,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:55:15" (3/3) ... [2024-11-03 07:55:15,144 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-3.i [2024-11-03 07:55:15,156 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 07:55:15,157 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 07:55:15,206 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 07:55:15,212 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7b408056, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 07:55:15,212 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 07:55:15,215 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 61 states have (on average 1.4426229508196722) internal successors, (88), 62 states have internal predecessors, (88), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-03 07:55:15,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-03 07:55:15,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:55:15,226 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:55:15,226 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:55:15,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:55:15,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1577606440, now seen corresponding path program 1 times [2024-11-03 07:55:15,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:55:15,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2016577331] [2024-11-03 07:55:15,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:55:15,237 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:55:15,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:55:15,239 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 07:55:15,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-03 07:55:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:55:15,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 07:55:15,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:55:17,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 519 proven. 72 refuted. 0 times theorem prover too weak. 1149 trivial. 0 not checked. [2024-11-03 07:55:17,303 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:55:18,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 15 proven. 72 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked. [2024-11-03 07:55:18,499 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:55:18,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2016577331] [2024-11-03 07:55:18,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2016577331] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:55:18,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:55:18,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-11-03 07:55:18,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298354401] [2024-11-03 07:55:18,502 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:55:18,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 07:55:18,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:55:18,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 07:55:18,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-03 07:55:18,523 INFO L87 Difference]: Start difference. First operand has 94 states, 61 states have (on average 1.4426229508196722) internal successors, (88), 62 states have internal predecessors, (88), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) 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, (54), 2 states have call predecessors, (54), 4 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2024-11-03 07:55:24,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:55:28,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:55:32,662 WARN L539 Checker$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 [] [2024-11-03 07:55:36,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:55:40,845 WARN L539 Checker$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 [] [2024-11-03 07:55:44,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:55:48,860 WARN L539 Checker$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 [] [2024-11-03 07:55:49,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:55:49,777 INFO L93 Difference]: Finished difference Result 290 states and 528 transitions. [2024-11-03 07:55:49,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-03 07:55:49,780 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, (54), 2 states have call predecessors, (54), 4 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 193 [2024-11-03 07:55:49,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:55:49,789 INFO L225 Difference]: With dead ends: 290 [2024-11-03 07:55:49,790 INFO L226 Difference]: Without dead ends: 199 [2024-11-03 07:55:49,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 378 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2024-11-03 07:55:49,795 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 193 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 83 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2024-11-03 07:55:49,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 328 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 282 Invalid, 7 Unknown, 0 Unchecked, 30.6s Time] [2024-11-03 07:55:49,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-03 07:55:49,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 187. [2024-11-03 07:55:49,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 117 states have (on average 1.2905982905982907) internal successors, (151), 119 states have internal predecessors, (151), 65 states have call successors, (65), 4 states have call predecessors, (65), 4 states have return successors, (65), 63 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-03 07:55:49,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 281 transitions. [2024-11-03 07:55:49,862 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 281 transitions. Word has length 193 [2024-11-03 07:55:49,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:55:49,863 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 281 transitions. [2024-11-03 07:55:49,864 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, (54), 2 states have call predecessors, (54), 4 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2024-11-03 07:55:49,864 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 281 transitions. [2024-11-03 07:55:49,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-03 07:55:49,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:55:49,871 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:55:49,890 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 [2024-11-03 07:55:50,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:55:50,072 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:55:50,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:55:50,073 INFO L85 PathProgramCache]: Analyzing trace with hash -985539517, now seen corresponding path program 1 times [2024-11-03 07:55:50,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:55:50,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1767600280] [2024-11-03 07:55:50,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:55:50,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:55:50,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:55:50,076 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 07:55:50,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-03 07:55:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:55:50,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 07:55:50,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:55:52,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 717 proven. 63 refuted. 0 times theorem prover too weak. 960 trivial. 0 not checked. [2024-11-03 07:55:52,201 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:55:53,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 24 proven. 63 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked. [2024-11-03 07:55:53,732 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:55:53,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1767600280] [2024-11-03 07:55:53,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1767600280] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:55:53,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:55:53,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2024-11-03 07:55:53,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297704589] [2024-11-03 07:55:53,732 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:55:53,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-03 07:55:53,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:55:53,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-03 07:55:53,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 07:55:53,735 INFO L87 Difference]: Start difference. First operand 187 states and 281 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2024-11-03 07:55:59,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:02,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:02,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:56:02,689 INFO L93 Difference]: Finished difference Result 381 states and 562 transitions. [2024-11-03 07:56:02,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 07:56:02,744 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 194 [2024-11-03 07:56:02,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:56:02,747 INFO L225 Difference]: With dead ends: 381 [2024-11-03 07:56:02,747 INFO L226 Difference]: Without dead ends: 205 [2024-11-03 07:56:02,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-03 07:56:02,749 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 148 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-11-03 07:56:02,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 238 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 159 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2024-11-03 07:56:02,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-03 07:56:02,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 195. [2024-11-03 07:56:02,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 123 states have (on average 1.2601626016260163) internal successors, (155), 125 states have internal predecessors, (155), 65 states have call successors, (65), 6 states have call predecessors, (65), 6 states have return successors, (65), 63 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-03 07:56:02,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 285 transitions. [2024-11-03 07:56:02,778 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 285 transitions. Word has length 194 [2024-11-03 07:56:02,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:56:02,779 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 285 transitions. [2024-11-03 07:56:02,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2024-11-03 07:56:02,779 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 285 transitions. [2024-11-03 07:56:02,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-03 07:56:02,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:56:02,783 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:56:02,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-03 07:56:02,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:56:02,984 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:56:02,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:56:02,985 INFO L85 PathProgramCache]: Analyzing trace with hash -284474939, now seen corresponding path program 1 times [2024-11-03 07:56:02,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:56:02,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376391608] [2024-11-03 07:56:02,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:56:02,985 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:56:02,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:56:02,986 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 07:56:02,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-03 07:56:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:56:03,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 07:56:03,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:56:04,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 663 proven. 24 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2024-11-03 07:56:04,764 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:56:07,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 144 proven. 27 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2024-11-03 07:56:07,617 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:56:07,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1376391608] [2024-11-03 07:56:07,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1376391608] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:56:07,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:56:07,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-03 07:56:07,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902737869] [2024-11-03 07:56:07,618 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:56:07,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-03 07:56:07,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:56:07,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-03 07:56:07,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2024-11-03 07:56:07,619 INFO L87 Difference]: Start difference. First operand 195 states and 285 transitions. Second operand has 16 states, 16 states have (on average 5.5) internal successors, (88), 16 states have internal predecessors, (88), 5 states have call successors, (36), 3 states have call predecessors, (36), 7 states have return successors, (37), 5 states have call predecessors, (37), 5 states have call successors, (37) [2024-11-03 07:56:14,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:19,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:23,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:27,039 WARN L539 Checker$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 [] [2024-11-03 07:56:31,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:35,047 WARN L539 Checker$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 [] [2024-11-03 07:56:39,054 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 [] [2024-11-03 07:56:39,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:56:39,063 INFO L93 Difference]: Finished difference Result 413 states and 584 transitions. [2024-11-03 07:56:39,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-03 07:56:39,123 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.5) internal successors, (88), 16 states have internal predecessors, (88), 5 states have call successors, (36), 3 states have call predecessors, (36), 7 states have return successors, (37), 5 states have call predecessors, (37), 5 states have call successors, (37) Word has length 194 [2024-11-03 07:56:39,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:56:39,126 INFO L225 Difference]: With dead ends: 413 [2024-11-03 07:56:39,126 INFO L226 Difference]: Without dead ends: 229 [2024-11-03 07:56:39,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 372 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2024-11-03 07:56:39,127 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 271 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 177 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time [2024-11-03 07:56:39,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 424 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 376 Invalid, 7 Unknown, 0 Unchecked, 30.8s Time] [2024-11-03 07:56:39,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-03 07:56:39,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 211. [2024-11-03 07:56:39,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 135 states have (on average 1.2222222222222223) internal successors, (165), 137 states have internal predecessors, (165), 65 states have call successors, (65), 10 states have call predecessors, (65), 10 states have return successors, (65), 63 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-03 07:56:39,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 295 transitions. [2024-11-03 07:56:39,146 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 295 transitions. Word has length 194 [2024-11-03 07:56:39,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:56:39,146 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 295 transitions. [2024-11-03 07:56:39,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.5) internal successors, (88), 16 states have internal predecessors, (88), 5 states have call successors, (36), 3 states have call predecessors, (36), 7 states have return successors, (37), 5 states have call predecessors, (37), 5 states have call successors, (37) [2024-11-03 07:56:39,147 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 295 transitions. [2024-11-03 07:56:39,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-03 07:56:39,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:56:39,148 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:56:39,167 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 [2024-11-03 07:56:39,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:56:39,353 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:56:39,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:56:39,354 INFO L85 PathProgramCache]: Analyzing trace with hash -175286621, now seen corresponding path program 1 times [2024-11-03 07:56:39,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:56:39,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523501056] [2024-11-03 07:56:39,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:56:39,354 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:56:39,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:56:39,357 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 07:56:39,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-03 07:56:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:56:39,786 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-03 07:56:39,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:56:48,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 36 proven. 884 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked. [2024-11-03 07:56:48,273 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:56:50,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 36 proven. 51 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked. [2024-11-03 07:56:50,410 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:56:50,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523501056] [2024-11-03 07:56:50,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1523501056] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:56:50,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:56:50,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-03 07:56:50,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622438807] [2024-11-03 07:56:50,411 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:56:50,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-03 07:56:50,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:56:50,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-03 07:56:50,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-03 07:56:50,412 INFO L87 Difference]: Start difference. First operand 211 states and 295 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 4 states have call successors, (60), 3 states have call predecessors, (60), 5 states have return successors, (60), 4 states have call predecessors, (60), 4 states have call successors, (60)