/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_floatingpointinfluence_no-floats_file-7.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 07:49:17,761 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 07:49:17,824 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 07:49:17,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 07:49:17,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 07:49:17,854 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 07:49:17,855 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 07:49:17,855 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 07:49:17,856 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 07:49:17,858 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 07:49:17,858 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 07:49:17,858 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 07:49:17,858 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 07:49:17,859 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 07:49:17,859 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 07:49:17,859 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 07:49:17,859 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 07:49:17,860 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 07:49:17,860 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 07:49:17,860 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 07:49:17,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 07:49:17,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 07:49:17,864 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 07:49:17,864 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 07:49:17,864 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 07:49:17,864 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 07:49:17,864 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 07:49:17,864 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 07:49:17,865 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 07:49:17,865 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 07:49:17,865 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 07:49:17,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 07:49:17,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 07:49:17,866 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 07:49:17,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 07:49:17,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 07:49:17,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 07:49:17,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 07:49:17,866 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 07:49:17,867 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 07:49:17,867 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 07:49:17,868 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 07:49:17,868 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 07:49:17,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 07:49:17,868 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:49:18,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 07:49:18,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 07:49:18,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 07:49:18,067 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 07:49:18,068 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 07:49:18,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-7.i [2024-11-03 07:49:19,279 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 07:49:19,423 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 07:49:19,423 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-7.i [2024-11-03 07:49:19,428 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6e6d5944/ecfdb6e04be64da4a8c247de293caf8c/FLAGb784dabed [2024-11-03 07:49:19,854 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6e6d5944/ecfdb6e04be64da4a8c247de293caf8c [2024-11-03 07:49:19,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 07:49:19,857 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 07:49:19,857 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 07:49:19,858 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 07:49:19,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 07:49:19,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:49:19" (1/1) ... [2024-11-03 07:49:19,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2610563c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:49:19, skipping insertion in model container [2024-11-03 07:49:19,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:49:19" (1/1) ... [2024-11-03 07:49:19,881 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 07:49:20,009 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_floatingpointinfluence_no-floats_file-7.i[915,928] [2024-11-03 07:49:20,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 07:49:20,044 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 07:49:20,052 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_floatingpointinfluence_no-floats_file-7.i[915,928] [2024-11-03 07:49:20,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 07:49:20,082 INFO L204 MainTranslator]: Completed translation [2024-11-03 07:49:20,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:49:20 WrapperNode [2024-11-03 07:49:20,082 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 07:49:20,083 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 07:49:20,083 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 07:49:20,083 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 07:49:20,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:49:20" (1/1) ... [2024-11-03 07:49:20,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:49:20" (1/1) ... [2024-11-03 07:49:20,108 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2024-11-03 07:49:20,109 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 07:49:20,110 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 07:49:20,110 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 07:49:20,110 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 07:49:20,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:49:20" (1/1) ... [2024-11-03 07:49:20,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:49:20" (1/1) ... [2024-11-03 07:49:20,124 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:49:20" (1/1) ... [2024-11-03 07:49:20,135 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-03 07:49:20,136 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:49:20" (1/1) ... [2024-11-03 07:49:20,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:49:20" (1/1) ... [2024-11-03 07:49:20,142 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:49:20" (1/1) ... [2024-11-03 07:49:20,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:49:20" (1/1) ... [2024-11-03 07:49:20,146 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:49:20" (1/1) ... [2024-11-03 07:49:20,147 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:49:20" (1/1) ... [2024-11-03 07:49:20,150 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 07:49:20,151 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 07:49:20,151 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 07:49:20,151 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 07:49:20,152 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:49:20" (1/1) ... [2024-11-03 07:49:20,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 07:49:20,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 07:49:20,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-03 07:49:20,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-03 07:49:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 07:49:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 07:49:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 07:49:20,208 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 07:49:20,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 07:49:20,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 07:49:20,277 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 07:49:20,279 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 07:49:20,504 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-03 07:49:20,504 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 07:49:20,517 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 07:49:20,518 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 07:49:20,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:49:20 BoogieIcfgContainer [2024-11-03 07:49:20,518 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 07:49:20,520 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 07:49:20,520 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 07:49:20,523 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 07:49:20,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 07:49:19" (1/3) ... [2024-11-03 07:49:20,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296e18f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:49:20, skipping insertion in model container [2024-11-03 07:49:20,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:49:20" (2/3) ... [2024-11-03 07:49:20,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296e18f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:49:20, skipping insertion in model container [2024-11-03 07:49:20,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:49:20" (3/3) ... [2024-11-03 07:49:20,525 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-7.i [2024-11-03 07:49:20,537 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 07:49:20,538 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 07:49:20,576 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 07:49:20,581 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;@6c89c666, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 07:49:20,581 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 07:49:20,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-03 07:49:20,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-03 07:49:20,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:49:20,590 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:49:20,591 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:49:20,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:49:20,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1710571826, now seen corresponding path program 1 times [2024-11-03 07:49:20,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:49:20,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040007713] [2024-11-03 07:49:20,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:49:20,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:49:20,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:49:20,605 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 07:49:20,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-03 07:49:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:49:20,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 07:49:20,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:49:20,776 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-03 07:49:20,777 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:49:20,877 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 20 proven. 8 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-03 07:49:20,878 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:49:20,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040007713] [2024-11-03 07:49:20,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1040007713] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 07:49:20,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 07:49:20,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-03 07:49:20,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619738337] [2024-11-03 07:49:20,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 07:49:20,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 07:49:20,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:49:20,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 07:49:20,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 07:49:20,918 INFO L87 Difference]: Start difference. First operand has 48 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-03 07:49:20,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:49:20,938 INFO L93 Difference]: Finished difference Result 89 states and 153 transitions. [2024-11-03 07:49:20,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 07:49:20,939 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 94 [2024-11-03 07:49:20,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:49:20,945 INFO L225 Difference]: With dead ends: 89 [2024-11-03 07:49:20,945 INFO L226 Difference]: Without dead ends: 44 [2024-11-03 07:49:20,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 07:49:20,951 INFO L432 NwaCegarLoop]: 64 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, 64 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 [2024-11-03 07:49:20,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 07:49:20,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-03 07:49:20,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-03 07:49:20,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-03 07:49:20,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 64 transitions. [2024-11-03 07:49:20,982 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 64 transitions. Word has length 94 [2024-11-03 07:49:20,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:49:20,982 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 64 transitions. [2024-11-03 07:49:20,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-03 07:49:20,982 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 64 transitions. [2024-11-03 07:49:20,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-03 07:49:20,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:49:20,985 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:49:20,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-03 07:49:21,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:49:21,186 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:49:21,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:49:21,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1154549772, now seen corresponding path program 1 times [2024-11-03 07:49:21,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:49:21,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1769734945] [2024-11-03 07:49:21,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:49:21,187 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:49:21,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:49:21,191 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 07:49:21,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-03 07:49:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:49:21,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 07:49:21,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:49:25,070 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-03 07:49:25,071 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:49:32,691 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-03 07:49:32,692 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:49:32,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1769734945] [2024-11-03 07:49:32,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1769734945] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:49:32,692 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:49:32,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2024-11-03 07:49:32,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844521396] [2024-11-03 07:49:32,693 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:49:32,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-03 07:49:32,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:49:32,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-03 07:49:32,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-03 07:49:32,695 INFO L87 Difference]: Start difference. First operand 44 states and 64 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-03 07:49:32,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:49:32,948 INFO L93 Difference]: Finished difference Result 130 states and 182 transitions. [2024-11-03 07:49:32,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-03 07:49:32,950 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 94 [2024-11-03 07:49:32,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:49:32,951 INFO L225 Difference]: With dead ends: 130 [2024-11-03 07:49:32,951 INFO L226 Difference]: Without dead ends: 89 [2024-11-03 07:49:32,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 176 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-11-03 07:49:32,954 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 90 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 07:49:32,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 355 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 07:49:32,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-03 07:49:32,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 59. [2024-11-03 07:49:32,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 38 states have internal predecessors, (44), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-03 07:49:32,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 82 transitions. [2024-11-03 07:49:32,973 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 82 transitions. Word has length 94 [2024-11-03 07:49:32,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:49:32,974 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 82 transitions. [2024-11-03 07:49:32,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-03 07:49:32,974 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 82 transitions. [2024-11-03 07:49:32,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-03 07:49:32,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:49:32,977 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:49:32,984 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 [2024-11-03 07:49:33,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:49:33,178 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:49:33,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:49:33,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1880779568, now seen corresponding path program 1 times [2024-11-03 07:49:33,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:49:33,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615598009] [2024-11-03 07:49:33,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:49:33,180 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:49:33,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:49:33,183 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 07:49:33,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-03 07:49:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:49:33,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-03 07:49:33,256 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:49:34,260 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-03 07:49:34,260 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:49:40,486 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-03 07:49:40,486 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:49:40,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1615598009] [2024-11-03 07:49:40,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1615598009] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:49:40,487 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:49:40,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 13 [2024-11-03 07:49:40,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236958865] [2024-11-03 07:49:40,487 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:49:40,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-03 07:49:40,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:49:40,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-03 07:49:40,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-03 07:49:40,488 INFO L87 Difference]: Start difference. First operand 59 states and 82 transitions. Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-03 07:49:40,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:49:40,843 INFO L93 Difference]: Finished difference Result 165 states and 220 transitions. [2024-11-03 07:49:40,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-03 07:49:40,843 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 96 [2024-11-03 07:49:40,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:49:40,844 INFO L225 Difference]: With dead ends: 165 [2024-11-03 07:49:40,844 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 07:49:40,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2024-11-03 07:49:40,846 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 108 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 07:49:40,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 510 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 07:49:40,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 07:49:40,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 07:49:40,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 07:49:40,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 07:49:40,848 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96 [2024-11-03 07:49:40,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:49:40,848 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 07:49:40,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-03 07:49:40,848 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 07:49:40,848 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 07:49:40,855 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 07:49:40,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-03 07:49:41,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:49:41,059 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-03 07:49:41,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 07:49:41,163 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 07:49:41,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 07:49:41 BoogieIcfgContainer [2024-11-03 07:49:41,178 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 07:49:41,178 INFO L158 Benchmark]: Toolchain (without parser) took 21321.71ms. Allocated memory was 201.3MB in the beginning and 863.0MB in the end (delta: 661.7MB). Free memory was 163.0MB in the beginning and 653.5MB in the end (delta: -490.6MB). Peak memory consumption was 172.1MB. Max. memory is 8.0GB. [2024-11-03 07:49:41,179 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 201.3MB. Free memory is still 155.5MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 07:49:41,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.80ms. Allocated memory is still 201.3MB. Free memory was 163.0MB in the beginning and 148.4MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-03 07:49:41,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.84ms. Allocated memory is still 201.3MB. Free memory was 148.4MB in the beginning and 146.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 07:49:41,179 INFO L158 Benchmark]: Boogie Preprocessor took 40.08ms. Allocated memory is still 201.3MB. Free memory was 146.3MB in the beginning and 144.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 07:49:41,180 INFO L158 Benchmark]: RCFGBuilder took 367.06ms. Allocated memory is still 201.3MB. Free memory was 144.0MB in the beginning and 128.9MB in the end (delta: 15.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2024-11-03 07:49:41,180 INFO L158 Benchmark]: TraceAbstraction took 20658.17ms. Allocated memory was 201.3MB in the beginning and 863.0MB in the end (delta: 661.7MB). Free memory was 128.5MB in the beginning and 653.5MB in the end (delta: -525.0MB). Peak memory consumption was 137.5MB. Max. memory is 8.0GB. [2024-11-03 07:49:41,181 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 201.3MB. Free memory is still 155.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 224.80ms. Allocated memory is still 201.3MB. Free memory was 163.0MB in the beginning and 148.4MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.84ms. Allocated memory is still 201.3MB. Free memory was 148.4MB in the beginning and 146.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.08ms. Allocated memory is still 201.3MB. Free memory was 146.3MB in the beginning and 144.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 367.06ms. Allocated memory is still 201.3MB. Free memory was 144.0MB in the beginning and 128.9MB in the end (delta: 15.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 20658.17ms. Allocated memory was 201.3MB in the beginning and 863.0MB in the end (delta: 661.7MB). Free memory was 128.5MB in the beginning and 653.5MB in the end (delta: -525.0MB). Peak memory consumption was 137.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.5s, OverallIterations: 3, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 198 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 198 mSDsluCounter, 929 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 715 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 362 IncrementalHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 214 mSDtfsCounter, 362 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 574 GetRequests, 542 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=2, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 30 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 18.8s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 562 ConstructedInterpolants, 0 QuantifiedInterpolants, 736 SizeOfPredicates, 28 NumberOfNonLiveVariables, 469 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 2512/2520 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (last_1_var_1_7 == \old(last_1_var_1_7))) && (last_1_var_1_12 == \old(last_1_var_1_12))) RESULT: Ultimate proved your program to be correct! [2024-11-03 07:49:41,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...