/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_amount50_file-98.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-df9f019-m [2024-11-05 20:26:57,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 20:26:57,878 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 20:26:57,885 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 20:26:57,886 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 20:26:57,917 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 20:26:57,917 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 20:26:57,918 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 20:26:57,918 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 20:26:57,918 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 20:26:57,919 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 20:26:57,920 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 20:26:57,920 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 20:26:57,924 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 20:26:57,924 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 20:26:57,924 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 20:26:57,924 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 20:26:57,925 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 20:26:57,925 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 20:26:57,925 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 20:26:57,925 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 20:26:57,928 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 20:26:57,928 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 20:26:57,928 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 20:26:57,928 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 20:26:57,928 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 20:26:57,929 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 20:26:57,929 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 20:26:57,929 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 20:26:57,929 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 20:26:57,930 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 20:26:57,930 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 20:26:57,930 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 20:26:57,930 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 20:26:57,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 20:26:57,931 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 20:26:57,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 20:26:57,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 20:26:57,932 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 20:26:57,932 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 20:26:57,932 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 20:26:57,932 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 20:26:57,932 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 20:26:57,933 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 20:26:57,933 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:26:58,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 20:26:58,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 20:26:58,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 20:26:58,185 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 20:26:58,186 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 20:26:58,187 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-98.i [2024-11-05 20:26:59,566 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 20:26:59,776 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 20:26:59,777 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-98.i [2024-11-05 20:26:59,788 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37ad7c2d3/f02e3b07b725444eafda9220720b7678/FLAGc82681d2d [2024-11-05 20:26:59,802 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37ad7c2d3/f02e3b07b725444eafda9220720b7678 [2024-11-05 20:26:59,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 20:26:59,805 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 20:26:59,806 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 20:26:59,806 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 20:26:59,811 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 20:26:59,811 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:26:59" (1/1) ... [2024-11-05 20:26:59,812 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62c2db10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:26:59, skipping insertion in model container [2024-11-05 20:26:59,812 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:26:59" (1/1) ... [2024-11-05 20:26:59,839 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 20:26:59,993 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_amount50_file-98.i[915,928] [2024-11-05 20:27:00,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 20:27:00,073 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 20:27:00,083 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_amount50_file-98.i[915,928] [2024-11-05 20:27:00,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 20:27:00,134 INFO L204 MainTranslator]: Completed translation [2024-11-05 20:27:00,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:00 WrapperNode [2024-11-05 20:27:00,137 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 20:27:00,138 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 20:27:00,138 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 20:27:00,138 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 20:27:00,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:00" (1/1) ... [2024-11-05 20:27:00,154 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:00" (1/1) ... [2024-11-05 20:27:00,178 INFO L138 Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 141 [2024-11-05 20:27:00,178 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 20:27:00,179 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 20:27:00,179 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 20:27:00,179 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 20:27:00,193 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:00" (1/1) ... [2024-11-05 20:27:00,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:00" (1/1) ... [2024-11-05 20:27:00,198 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:00" (1/1) ... [2024-11-05 20:27:00,209 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 20:27:00,209 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:00" (1/1) ... [2024-11-05 20:27:00,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:00" (1/1) ... [2024-11-05 20:27:00,220 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:00" (1/1) ... [2024-11-05 20:27:00,223 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:00" (1/1) ... [2024-11-05 20:27:00,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:00" (1/1) ... [2024-11-05 20:27:00,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:00" (1/1) ... [2024-11-05 20:27:00,230 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 20:27:00,231 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 20:27:00,231 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 20:27:00,231 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 20:27:00,231 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:00" (1/1) ... [2024-11-05 20:27:00,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 20:27:00,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 20:27:00,256 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 20:27:00,258 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 20:27:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 20:27:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 20:27:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 20:27:00,282 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 20:27:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 20:27:00,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 20:27:00,374 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 20:27:00,376 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 20:27:01,267 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-05 20:27:01,268 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 20:27:01,279 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 20:27:01,279 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 20:27:01,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:27:01 BoogieIcfgContainer [2024-11-05 20:27:01,280 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 20:27:01,282 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 20:27:01,282 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 20:27:01,286 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 20:27:01,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:26:59" (1/3) ... [2024-11-05 20:27:01,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@194a18fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:27:01, skipping insertion in model container [2024-11-05 20:27:01,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:00" (2/3) ... [2024-11-05 20:27:01,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@194a18fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:27:01, skipping insertion in model container [2024-11-05 20:27:01,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:27:01" (3/3) ... [2024-11-05 20:27:01,288 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-98.i [2024-11-05 20:27:01,306 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 20:27:01,307 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 20:27:01,362 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 20:27:01,367 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;@1d810a6e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 20:27:01,367 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 20:27:01,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 40 states have (on average 1.35) internal successors, (54), 41 states have internal predecessors, (54), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-05 20:27:01,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-05 20:27:01,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:27:01,384 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:27:01,385 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:27:01,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:27:01,389 INFO L85 PathProgramCache]: Analyzing trace with hash -2033321866, now seen corresponding path program 1 times [2024-11-05 20:27:01,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:27:01,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [726003364] [2024-11-05 20:27:01,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:27:01,399 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 20:27:01,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:27:01,402 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 20:27:01,404 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 20:27:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:27:01,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 20:27:01,711 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:27:01,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2024-11-05 20:27:01,768 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:27:02,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 14 proven. 32 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2024-11-05 20:27:02,008 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:27:02,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [726003364] [2024-11-05 20:27:02,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [726003364] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 20:27:02,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 20:27:02,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-05 20:27:02,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14032553] [2024-11-05 20:27:02,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 20:27:02,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 20:27:02,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:27:02,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 20:27:02,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 20:27:02,044 INFO L87 Difference]: Start difference. First operand has 67 states, 40 states have (on average 1.35) internal successors, (54), 41 states have internal predecessors, (54), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-05 20:27:02,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:27:02,069 INFO L93 Difference]: Finished difference Result 127 states and 222 transitions. [2024-11-05 20:27:02,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 20:27:02,071 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 150 [2024-11-05 20:27:02,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:27:02,079 INFO L225 Difference]: With dead ends: 127 [2024-11-05 20:27:02,080 INFO L226 Difference]: Without dead ends: 63 [2024-11-05 20:27:02,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 298 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 20:27:02,090 INFO L432 NwaCegarLoop]: 95 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, 95 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 20:27:02,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 20:27:02,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-05 20:27:02,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-05 20:27:02,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 37 states have internal predecessors, (47), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-05 20:27:02,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 95 transitions. [2024-11-05 20:27:02,146 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 95 transitions. Word has length 150 [2024-11-05 20:27:02,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:27:02,147 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 95 transitions. [2024-11-05 20:27:02,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-05 20:27:02,147 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 95 transitions. [2024-11-05 20:27:02,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-05 20:27:02,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:27:02,154 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:27:02,168 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 20:27:02,359 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 20:27:02,360 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:27:02,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:27:02,361 INFO L85 PathProgramCache]: Analyzing trace with hash -94721410, now seen corresponding path program 1 times [2024-11-05 20:27:02,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:27:02,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [352626496] [2024-11-05 20:27:02,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:27:02,362 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 20:27:02,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:27:02,365 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 20:27:02,366 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 20:27:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:27:02,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-05 20:27:02,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:27:02,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-05 20:27:02,820 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:27:03,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-05 20:27:03,127 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:27:03,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [352626496] [2024-11-05 20:27:03,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [352626496] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 20:27:03,127 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 20:27:03,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-05 20:27:03,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829855135] [2024-11-05 20:27:03,128 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 20:27:03,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-05 20:27:03,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:27:03,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-05 20:27:03,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-05 20:27:03,130 INFO L87 Difference]: Start difference. First operand 63 states and 95 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-05 20:27:04,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:27:04,044 INFO L93 Difference]: Finished difference Result 167 states and 255 transitions. [2024-11-05 20:27:04,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-05 20:27:04,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 150 [2024-11-05 20:27:04,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:27:04,064 INFO L225 Difference]: With dead ends: 167 [2024-11-05 20:27:04,064 INFO L226 Difference]: Without dead ends: 107 [2024-11-05 20:27:04,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-05 20:27:04,066 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 154 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-05 20:27:04,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 174 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-05 20:27:04,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-05 20:27:04,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 63. [2024-11-05 20:27:04,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 37 states have internal predecessors, (46), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-05 20:27:04,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 94 transitions. [2024-11-05 20:27:04,098 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 94 transitions. Word has length 150 [2024-11-05 20:27:04,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:27:04,100 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 94 transitions. [2024-11-05 20:27:04,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-05 20:27:04,100 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 94 transitions. [2024-11-05 20:27:04,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-05 20:27:04,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:27:04,103 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:27:04,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-05 20:27:04,304 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 20:27:04,305 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:27:04,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:27:04,305 INFO L85 PathProgramCache]: Analyzing trace with hash -37463108, now seen corresponding path program 1 times [2024-11-05 20:27:04,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:27:04,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880335067] [2024-11-05 20:27:04,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:27:04,306 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 20:27:04,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:27:04,307 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 20:27:04,308 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 20:27:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:27:04,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-05 20:27:04,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:27:04,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-05 20:27:04,624 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:27:04,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-05 20:27:04,845 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:27:04,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880335067] [2024-11-05 20:27:04,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [880335067] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 20:27:04,845 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 20:27:04,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-05 20:27:04,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676245827] [2024-11-05 20:27:04,846 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 20:27:04,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-05 20:27:04,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:27:04,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-05 20:27:04,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-05 20:27:04,850 INFO L87 Difference]: Start difference. First operand 63 states and 94 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-05 20:27:06,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:27:06,982 INFO L93 Difference]: Finished difference Result 227 states and 344 transitions. [2024-11-05 20:27:06,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-05 20:27:06,983 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 150 [2024-11-05 20:27:06,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:27:06,986 INFO L225 Difference]: With dead ends: 227 [2024-11-05 20:27:06,986 INFO L226 Difference]: Without dead ends: 167 [2024-11-05 20:27:06,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-05 20:27:06,988 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 213 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-05 20:27:06,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 523 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-05 20:27:06,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-05 20:27:07,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 119. [2024-11-05 20:27:07,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 68 states have (on average 1.2352941176470589) internal successors, (84), 68 states have internal predecessors, (84), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-05 20:27:07,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 180 transitions. [2024-11-05 20:27:07,024 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 180 transitions. Word has length 150 [2024-11-05 20:27:07,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:27:07,025 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 180 transitions. [2024-11-05 20:27:07,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-05 20:27:07,025 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 180 transitions. [2024-11-05 20:27:07,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-05 20:27:07,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:27:07,028 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:27:07,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-05 20:27:07,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:27:07,229 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:27:07,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:27:07,230 INFO L85 PathProgramCache]: Analyzing trace with hash -35616066, now seen corresponding path program 1 times [2024-11-05 20:27:07,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:27:07,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522065070] [2024-11-05 20:27:07,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:27:07,230 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 20:27:07,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:27:07,235 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 20:27:07,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-05 20:27:07,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:27:07,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-05 20:27:07,493 INFO L278 TraceCheckSpWp]: Computing forward predicates...