/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-97.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-df9f019-m [2024-11-05 20:26:57,613 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 20:26:57,667 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 20:26:57,674 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 20:26:57,675 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 20:26:57,705 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 20:26:57,705 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 20:26:57,705 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 20:26:57,706 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 20:26:57,706 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 20:26:57,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 20:26:57,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 20:26:57,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 20:26:57,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 20:26:57,708 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 20:26:57,708 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 20:26:57,709 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 20:26:57,709 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 20:26:57,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 20:26:57,710 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 20:26:57,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 20:26:57,714 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 20:26:57,714 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 20:26:57,714 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 20:26:57,715 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 20:26:57,715 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 20:26:57,715 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 20:26:57,715 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 20:26:57,716 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 20:26:57,716 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 20:26:57,716 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 20:26:57,717 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 20:26:57,717 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 20:26:57,720 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 20:26:57,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 20:26:57,721 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 20:26:57,721 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 20:26:57,721 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 20:26:57,722 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 20:26:57,722 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 20:26:57,722 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 20:26:57,722 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 20:26:57,723 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 20:26:57,723 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 20:26:57,723 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:26:57,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 20:26:57,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 20:26:57,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 20:26:57,974 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 20:26:57,974 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 20:26:57,975 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-97.i [2024-11-05 20:26:59,409 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 20:26:59,601 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 20:26:59,601 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-97.i [2024-11-05 20:26:59,611 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a3d357ba/d17558c484f74b7391a30bd2a8aee437/FLAGbfcb812a6 [2024-11-05 20:26:59,623 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a3d357ba/d17558c484f74b7391a30bd2a8aee437 [2024-11-05 20:26:59,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 20:26:59,626 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 20:26:59,628 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 20:26:59,628 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 20:26:59,632 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 20:26:59,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:26:59" (1/1) ... [2024-11-05 20:26:59,633 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b64210 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 20:26:59,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:26:59" (1/1) ... [2024-11-05 20:26:59,658 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 20:26:59,815 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-97.i[915,928] [2024-11-05 20:26:59,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 20:26:59,890 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 20:26:59,899 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-97.i[915,928] [2024-11-05 20:26:59,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 20:26:59,944 INFO L204 MainTranslator]: Completed translation [2024-11-05 20:26:59,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:26:59 WrapperNode [2024-11-05 20:26:59,945 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 20:26:59,946 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 20:26:59,946 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 20:26:59,946 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 20:26:59,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:26:59" (1/1) ... [2024-11-05 20:26:59,962 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:26:59" (1/1) ... [2024-11-05 20:26:59,983 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126 [2024-11-05 20:26:59,983 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 20:26:59,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 20:26:59,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 20:26:59,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 20:26:59,997 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:26:59" (1/1) ... [2024-11-05 20:26:59,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:26:59" (1/1) ... [2024-11-05 20:27:00,002 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:26:59" (1/1) ... [2024-11-05 20:27:00,021 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 20:27:00,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:26:59" (1/1) ... [2024-11-05 20:27:00,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:26:59" (1/1) ... [2024-11-05 20:27:00,030 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:26:59" (1/1) ... [2024-11-05 20:27:00,033 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:26:59" (1/1) ... [2024-11-05 20:27:00,036 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:26:59" (1/1) ... [2024-11-05 20:27:00,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:26:59" (1/1) ... [2024-11-05 20:27:00,040 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 20:27:00,042 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 20:27:00,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 20:27:00,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 20:27:00,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:26:59" (1/1) ... [2024-11-05 20:27:00,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 20:27:00,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 20:27:00,071 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 20:27:00,073 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 20:27:00,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 20:27:00,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 20:27:00,112 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 20:27:00,112 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 20:27:00,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 20:27:00,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 20:27:00,184 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 20:27:00,186 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 20:27:00,462 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-05 20:27:00,462 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 20:27:00,473 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 20:27:00,473 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 20:27:00,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:27:00 BoogieIcfgContainer [2024-11-05 20:27:00,474 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 20:27:00,482 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 20:27:00,482 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 20:27:00,486 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 20:27:00,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:26:59" (1/3) ... [2024-11-05 20:27:00,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20788af5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:27:00, skipping insertion in model container [2024-11-05 20:27:00,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:26:59" (2/3) ... [2024-11-05 20:27:00,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20788af5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:27:00, skipping insertion in model container [2024-11-05 20:27:00,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:27:00" (3/3) ... [2024-11-05 20:27:00,491 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-97.i [2024-11-05 20:27:00,503 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 20:27:00,504 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 20:27:00,548 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 20:27:00,552 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;@78411e37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 20:27:00,552 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 20:27:00,555 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-05 20:27:00,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-05 20:27:00,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:27:00,569 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:00,569 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:27:00,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:27:00,575 INFO L85 PathProgramCache]: Analyzing trace with hash 634659171, now seen corresponding path program 1 times [2024-11-05 20:27:00,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:27:00,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937199765] [2024-11-05 20:27:00,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:27:00,584 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 20:27:00,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:27:00,586 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 20:27:00,587 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 20:27:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:27:00,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 20:27:00,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:27:00,816 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-11-05 20:27:00,817 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:27:00,919 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-05 20:27:00,920 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:27:00,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [937199765] [2024-11-05 20:27:00,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [937199765] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 20:27:00,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 20:27:00,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-05 20:27:00,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326468020] [2024-11-05 20:27:00,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 20:27:00,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 20:27:00,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:27:00,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 20:27:00,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 20:27:00,964 INFO L87 Difference]: Start difference. First operand has 58 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-05 20:27:00,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:27:00,992 INFO L93 Difference]: Finished difference Result 109 states and 182 transitions. [2024-11-05 20:27:00,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 20:27:00,994 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 107 [2024-11-05 20:27:00,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:27:00,999 INFO L225 Difference]: With dead ends: 109 [2024-11-05 20:27:01,000 INFO L226 Difference]: Without dead ends: 54 [2024-11-05 20:27:01,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 212 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 20:27:01,005 INFO L432 NwaCegarLoop]: 79 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, 79 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 20:27:01,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 20:27:01,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-05 20:27:01,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-05 20:27:01,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 36 states have internal predecessors, (47), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-05 20:27:01,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 79 transitions. [2024-11-05 20:27:01,042 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 79 transitions. Word has length 107 [2024-11-05 20:27:01,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:27:01,043 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 79 transitions. [2024-11-05 20:27:01,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-05 20:27:01,043 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 79 transitions. [2024-11-05 20:27:01,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-05 20:27:01,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:27:01,046 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:01,052 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 20:27:01,247 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 20:27:01,247 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:27:01,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:27:01,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1931481759, now seen corresponding path program 1 times [2024-11-05 20:27:01,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:27:01,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941146376] [2024-11-05 20:27:01,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:27:01,250 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 20:27:01,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:27:01,253 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 20:27:01,254 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 20:27:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:27:01,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-05 20:27:01,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:27:01,529 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-05 20:27:01,529 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:27:01,743 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-05 20:27:01,743 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:27:01,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [941146376] [2024-11-05 20:27:01,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [941146376] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 20:27:01,744 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 20:27:01,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2024-11-05 20:27:01,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802082406] [2024-11-05 20:27:01,744 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 20:27:01,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-05 20:27:01,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:27:01,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-05 20:27:01,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-05 20:27:01,751 INFO L87 Difference]: Start difference. First operand 54 states and 79 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-05 20:27:02,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:27:02,101 INFO L93 Difference]: Finished difference Result 111 states and 158 transitions. [2024-11-05 20:27:02,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-05 20:27:02,104 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 107 [2024-11-05 20:27:02,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:27:02,108 INFO L225 Difference]: With dead ends: 111 [2024-11-05 20:27:02,108 INFO L226 Difference]: Without dead ends: 60 [2024-11-05 20:27:02,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 206 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2024-11-05 20:27:02,110 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 83 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-05 20:27:02,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 106 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-05 20:27:02,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-05 20:27:02,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2024-11-05 20:27:02,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-05 20:27:02,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 75 transitions. [2024-11-05 20:27:02,127 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 75 transitions. Word has length 107 [2024-11-05 20:27:02,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:27:02,129 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 75 transitions. [2024-11-05 20:27:02,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-05 20:27:02,129 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 75 transitions. [2024-11-05 20:27:02,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-05 20:27:02,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:27:02,131 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:02,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-05 20:27:02,335 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 20:27:02,336 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:27:02,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:27:02,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1662420959, now seen corresponding path program 1 times [2024-11-05 20:27:02,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:27:02,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1115935982] [2024-11-05 20:27:02,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:27:02,337 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 20:27:02,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:27:02,339 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 20:27:02,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-05 20:27:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:27:02,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-05 20:27:02,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:27:02,724 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-05 20:27:02,724 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:27:02,975 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-05 20:27:02,975 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:27:02,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1115935982] [2024-11-05 20:27:02,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1115935982] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 20:27:02,976 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 20:27:02,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-05 20:27:02,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014570969] [2024-11-05 20:27:02,976 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 20:27:02,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-05 20:27:02,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:27:02,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-05 20:27:02,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-05 20:27:02,978 INFO L87 Difference]: Start difference. First operand 56 states and 75 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-05 20:27:03,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:27:03,196 INFO L93 Difference]: Finished difference Result 146 states and 199 transitions. [2024-11-05 20:27:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-05 20:27:03,197 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 107 [2024-11-05 20:27:03,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:27:03,199 INFO L225 Difference]: With dead ends: 146 [2024-11-05 20:27:03,199 INFO L226 Difference]: Without dead ends: 93 [2024-11-05 20:27:03,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-05 20:27:03,205 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 81 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-05 20:27:03,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 368 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-05 20:27:03,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-05 20:27:03,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 56. [2024-11-05 20:27:03,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.135135135135135) internal successors, (42), 37 states have internal predecessors, (42), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-05 20:27:03,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 74 transitions. [2024-11-05 20:27:03,230 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 74 transitions. Word has length 107 [2024-11-05 20:27:03,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:27:03,230 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 74 transitions. [2024-11-05 20:27:03,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-05 20:27:03,231 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 74 transitions. [2024-11-05 20:27:03,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-05 20:27:03,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:27:03,235 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:03,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-05 20:27:03,436 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 20:27:03,437 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:27:03,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:27:03,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1132663117, now seen corresponding path program 1 times [2024-11-05 20:27:03,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:27:03,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330416374] [2024-11-05 20:27:03,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:27:03,439 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 20:27:03,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:27:03,442 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 20:27:03,443 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 20:27:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:27:03,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-05 20:27:03,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:27:04,104 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-05 20:27:04,105 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:27:04,418 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-05 20:27:04,419 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:27:04,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330416374] [2024-11-05 20:27:04,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [330416374] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 20:27:04,419 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 20:27:04,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-05 20:27:04,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914762360] [2024-11-05 20:27:04,420 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 20:27:04,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-05 20:27:04,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:27:04,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-05 20:27:04,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-05 20:27:04,422 INFO L87 Difference]: Start difference. First operand 56 states and 74 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-05 20:27:05,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:27:05,361 INFO L93 Difference]: Finished difference Result 236 states and 308 transitions. [2024-11-05 20:27:05,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-05 20:27:05,364 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 108 [2024-11-05 20:27:05,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:27:05,366 INFO L225 Difference]: With dead ends: 236 [2024-11-05 20:27:05,366 INFO L226 Difference]: Without dead ends: 183 [2024-11-05 20:27:05,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-05 20:27:05,368 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 129 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-05 20:27:05,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 310 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-05 20:27:05,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-05 20:27:05,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 158. [2024-11-05 20:27:05,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 103 states have (on average 1.1262135922330097) internal successors, (116), 103 states have internal predecessors, (116), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-05 20:27:05,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 212 transitions. [2024-11-05 20:27:05,440 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 212 transitions. Word has length 108 [2024-11-05 20:27:05,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:27:05,441 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 212 transitions. [2024-11-05 20:27:05,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-05 20:27:05,441 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 212 transitions. [2024-11-05 20:27:05,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-05 20:27:05,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:27:05,446 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:05,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-05 20:27:05,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:27:05,647 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:27:05,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:27:05,648 INFO L85 PathProgramCache]: Analyzing trace with hash 808167104, now seen corresponding path program 1 times [2024-11-05 20:27:05,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:27:05,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [391781939] [2024-11-05 20:27:05,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:27:05,648 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 20:27:05,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:27:05,649 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 20:27:05,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-05 20:27:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:27:05,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-05 20:27:05,771 INFO L278 TraceCheckSpWp]: Computing forward predicates...