/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-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal57.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-05 09:08:23,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 09:08:23,751 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-05 09:08:23,757 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 09:08:23,757 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 09:08:23,780 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 09:08:23,781 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 09:08:23,781 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 09:08:23,782 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 09:08:23,782 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 09:08:23,782 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 09:08:23,783 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 09:08:23,783 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 09:08:23,783 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 09:08:23,784 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 09:08:23,784 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 09:08:23,784 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 09:08:23,785 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 09:08:23,785 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 09:08:23,787 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 09:08:23,787 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 09:08:23,791 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 09:08:23,791 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 09:08:23,791 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 09:08:23,791 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 09:08:23,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 09:08:23,792 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 09:08:23,792 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 09:08:23,792 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 09:08:23,793 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 09:08:23,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 09:08:23,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 09:08:23,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 09:08:23,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 09:08:23,794 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 09:08:23,794 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 09:08:23,794 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 09:08:23,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 09:08:23,794 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 09:08:23,795 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 09:08:23,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 09:08:23,796 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 09:08:24,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 09:08:24,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 09:08:24,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 09:08:24,060 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 09:08:24,061 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 09:08:24,062 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal57.c [2024-11-05 09:08:25,546 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 09:08:25,722 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 09:08:25,723 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal57.c [2024-11-05 09:08:25,731 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10caf7ca2/4d836876ba694ddf9d366464bf365ebb/FLAGd29435b12 [2024-11-05 09:08:25,748 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10caf7ca2/4d836876ba694ddf9d366464bf365ebb [2024-11-05 09:08:25,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 09:08:25,752 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 09:08:25,753 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 09:08:25,753 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 09:08:25,757 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 09:08:25,758 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 09:08:25" (1/1) ... [2024-11-05 09:08:25,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@105a38da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:08:25, skipping insertion in model container [2024-11-05 09:08:25,759 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 09:08:25" (1/1) ... [2024-11-05 09:08:25,788 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 09:08:25,958 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal57.c[1245,1258] [2024-11-05 09:08:26,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 09:08:26,017 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 09:08:26,030 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal57.c[1245,1258] [2024-11-05 09:08:26,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 09:08:26,076 INFO L204 MainTranslator]: Completed translation [2024-11-05 09:08:26,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:08:26 WrapperNode [2024-11-05 09:08:26,079 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 09:08:26,080 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 09:08:26,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 09:08:26,080 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 09:08:26,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:08:26" (1/1) ... [2024-11-05 09:08:26,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:08:26" (1/1) ... [2024-11-05 09:08:26,124 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 184 [2024-11-05 09:08:26,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 09:08:26,125 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 09:08:26,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 09:08:26,126 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 09:08:26,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:08:26" (1/1) ... [2024-11-05 09:08:26,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:08:26" (1/1) ... [2024-11-05 09:08:26,141 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:08:26" (1/1) ... [2024-11-05 09:08:26,162 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-05 09:08:26,163 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:08:26" (1/1) ... [2024-11-05 09:08:26,167 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:08:26" (1/1) ... [2024-11-05 09:08:26,174 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:08:26" (1/1) ... [2024-11-05 09:08:26,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:08:26" (1/1) ... [2024-11-05 09:08:26,179 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:08:26" (1/1) ... [2024-11-05 09:08:26,180 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:08:26" (1/1) ... [2024-11-05 09:08:26,182 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 09:08:26,183 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 09:08:26,184 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 09:08:26,184 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 09:08:26,184 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:08:26" (1/1) ... [2024-11-05 09:08:26,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 09:08:26,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 09:08:26,216 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 09:08:26,230 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 09:08:26,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 09:08:26,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 09:08:26,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-05 09:08:26,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 09:08:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 09:08:26,342 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 09:08:26,344 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 09:08:26,587 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2024-11-05 09:08:26,587 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 09:08:26,600 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 09:08:26,601 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 09:08:26,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 09:08:26 BoogieIcfgContainer [2024-11-05 09:08:26,602 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 09:08:26,605 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 09:08:26,605 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 09:08:26,607 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 09:08:26,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 09:08:25" (1/3) ... [2024-11-05 09:08:26,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43675b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 09:08:26, skipping insertion in model container [2024-11-05 09:08:26,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:08:26" (2/3) ... [2024-11-05 09:08:26,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43675b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 09:08:26, skipping insertion in model container [2024-11-05 09:08:26,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 09:08:26" (3/3) ... [2024-11-05 09:08:26,609 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal57.c [2024-11-05 09:08:26,621 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 09:08:26,622 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 09:08:26,665 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 09:08:26,673 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;@506d1135, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 09:08:26,674 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 09:08:26,678 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) [2024-11-05 09:08:26,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-05 09:08:26,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 09:08:26,683 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-05 09:08:26,684 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 09:08:26,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 09:08:26,688 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-05 09:08:26,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 09:08:26,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19255749] [2024-11-05 09:08:26,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 09:08:26,699 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 09:08:26,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 09:08:26,703 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 09:08:26,705 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 09:08:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 09:08:26,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-05 09:08:26,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 09:08:27,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 09:08:27,044 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 09:08:27,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 09:08:27,127 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 09:08:27,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19255749] [2024-11-05 09:08:27,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [19255749] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 09:08:27,128 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 09:08:27,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-05 09:08:27,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649021529] [2024-11-05 09:08:27,131 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 09:08:27,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-05 09:08:27,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 09:08:27,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-05 09:08:27,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-05 09:08:27,162 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2024-11-05 09:08:27,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 09:08:27,215 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-05 09:08:27,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-05 09:08:27,219 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Word has length 5 [2024-11-05 09:08:27,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 09:08:27,225 INFO L225 Difference]: With dead ends: 18 [2024-11-05 09:08:27,226 INFO L226 Difference]: Without dead ends: 10 [2024-11-05 09:08:27,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-05 09:08:27,234 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 09:08:27,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 14 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 09:08:27,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-05 09:08:27,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-05 09:08:27,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2024-11-05 09:08:27,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-05 09:08:27,264 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-05 09:08:27,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 09:08:27,265 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-05 09:08:27,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2024-11-05 09:08:27,265 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-05 09:08:27,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-05 09:08:27,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 09:08:27,268 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-05 09:08:27,273 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 09:08:27,470 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 09:08:27,471 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 09:08:27,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 09:08:27,472 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-05 09:08:27,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 09:08:27,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151981582] [2024-11-05 09:08:27,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 09:08:27,473 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 09:08:27,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 09:08:27,476 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 09:08:27,477 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 09:08:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 09:08:27,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-05 09:08:27,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 09:08:28,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 09:08:28,026 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 09:08:29,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 09:08:29,255 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 09:08:29,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151981582] [2024-11-05 09:08:29,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1151981582] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 09:08:29,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 09:08:29,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-05 09:08:29,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897880847] [2024-11-05 09:08:29,256 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 09:08:29,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-05 09:08:29,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 09:08:29,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-05 09:08:29,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-05 09:08:29,260 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2024-11-05 09:08:29,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 09:08:29,354 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2024-11-05 09:08:29,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-05 09:08:29,355 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) Word has length 8 [2024-11-05 09:08:29,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 09:08:29,356 INFO L225 Difference]: With dead ends: 14 [2024-11-05 09:08:29,356 INFO L226 Difference]: Without dead ends: 12 [2024-11-05 09:08:29,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-05 09:08:29,357 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 09:08:29,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 09:08:29,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-05 09:08:29,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-05 09:08:29,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2024-11-05 09:08:29,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-05 09:08:29,362 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-05 09:08:29,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 09:08:29,362 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-05 09:08:29,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2024-11-05 09:08:29,363 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-05 09:08:29,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-05 09:08:29,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 09:08:29,364 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-05 09:08:29,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-05 09:08:29,568 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 09:08:29,568 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 09:08:29,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 09:08:29,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times [2024-11-05 09:08:29,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 09:08:29,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231563859] [2024-11-05 09:08:29,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 09:08:29,570 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 09:08:29,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 09:08:29,572 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 09:08:29,573 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 09:08:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 09:08:29,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-05 09:08:29,721 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 09:08:30,786 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 09:08:30,786 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 09:08:56,566 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 09:08:56,566 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 09:08:56,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231563859] [2024-11-05 09:08:56,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1231563859] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 09:08:56,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 09:08:56,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-05 09:08:56,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112150461] [2024-11-05 09:08:56,567 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 09:08:56,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-05 09:08:56,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 09:08:56,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-05 09:08:56,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-05 09:08:56,569 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) [2024-11-05 09:08:56,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 09:08:56,776 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2024-11-05 09:08:56,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-05 09:08:56,776 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) Word has length 11 [2024-11-05 09:08:56,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 09:08:56,777 INFO L225 Difference]: With dead ends: 17 [2024-11-05 09:08:56,777 INFO L226 Difference]: Without dead ends: 15 [2024-11-05 09:08:56,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-05 09:08:56,778 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-05 09:08:56,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-05 09:08:56,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-05 09:08:56,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-05 09:08:56,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2024-11-05 09:08:56,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-11-05 09:08:56,783 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2024-11-05 09:08:56,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 09:08:56,783 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-11-05 09:08:56,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) [2024-11-05 09:08:56,784 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-11-05 09:08:56,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-05 09:08:56,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 09:08:56,784 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2024-11-05 09:08:56,789 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 09:08:56,985 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 09:08:56,985 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 09:08:56,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 09:08:56,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1333570723, now seen corresponding path program 3 times [2024-11-05 09:08:56,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 09:08:56,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093338852] [2024-11-05 09:08:56,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 09:08:56,987 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 09:08:56,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 09:08:56,990 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 09:08:56,993 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 09:08:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 09:08:57,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-05 09:08:57,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 09:08:58,298 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-05 09:08:58,298 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 09:09:41,233 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-05 09:09:41,234 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 09:09:41,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093338852] [2024-11-05 09:09:41,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1093338852] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 09:09:41,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 09:09:41,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-05 09:09:41,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955484593] [2024-11-05 09:09:41,235 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 09:09:41,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-05 09:09:41,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 09:09:41,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-05 09:09:41,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-05 09:09:41,236 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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) [2024-11-05 09:09:41,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 09:09:41,444 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-05 09:09:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-05 09:09:41,445 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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) Word has length 14 [2024-11-05 09:09:41,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 09:09:41,445 INFO L225 Difference]: With dead ends: 15 [2024-11-05 09:09:41,445 INFO L226 Difference]: Without dead ends: 0 [2024-11-05 09:09:41,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-11-05 09:09:41,447 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-05 09:09:41,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-05 09:09:41,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-05 09:09:41,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-05 09:09:41,448 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) [2024-11-05 09:09:41,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-05 09:09:41,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2024-11-05 09:09:41,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 09:09:41,448 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-05 09:09:41,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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) [2024-11-05 09:09:41,449 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-05 09:09:41,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-05 09:09:41,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-05 09:09:41,457 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 09:09:41,652 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 09:09:41,655 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1] [2024-11-05 09:09:41,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-05 09:09:41,826 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-05 09:09:41,842 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-05 09:09:41,843 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-05 09:09:41,843 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-05 09:09:41,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 09:09:41 BoogieIcfgContainer [2024-11-05 09:09:41,846 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-05 09:09:41,850 INFO L158 Benchmark]: Toolchain (without parser) took 76098.05ms. Allocated memory was 330.3MB in the beginning and 856.7MB in the end (delta: 526.4MB). Free memory was 267.3MB in the beginning and 386.9MB in the end (delta: -119.6MB). Peak memory consumption was 407.9MB. Max. memory is 8.0GB. [2024-11-05 09:09:41,850 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 180.4MB. Free memory is still 130.2MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-05 09:09:41,850 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.90ms. Allocated memory is still 330.3MB. Free memory was 266.8MB in the beginning and 251.0MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2024-11-05 09:09:41,851 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.99ms. Allocated memory is still 330.3MB. Free memory was 250.5MB in the beginning and 248.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-05 09:09:41,851 INFO L158 Benchmark]: Boogie Preprocessor took 57.02ms. Allocated memory is still 330.3MB. Free memory was 248.4MB in the beginning and 245.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-05 09:09:41,851 INFO L158 Benchmark]: RCFGBuilder took 418.51ms. Allocated memory is still 330.3MB. Free memory was 245.8MB in the beginning and 223.8MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2024-11-05 09:09:41,851 INFO L158 Benchmark]: TraceAbstraction took 75244.85ms. Allocated memory was 330.3MB in the beginning and 856.7MB in the end (delta: 526.4MB). Free memory was 223.2MB in the beginning and 386.9MB in the end (delta: -163.6MB). Peak memory consumption was 363.8MB. Max. memory is 8.0GB. [2024-11-05 09:09:41,853 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 180.4MB. Free memory is still 130.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 325.90ms. Allocated memory is still 330.3MB. Free memory was 266.8MB in the beginning and 251.0MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.99ms. Allocated memory is still 330.3MB. Free memory was 250.5MB in the beginning and 248.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.02ms. Allocated memory is still 330.3MB. Free memory was 248.4MB in the beginning and 245.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 418.51ms. Allocated memory is still 330.3MB. Free memory was 245.8MB in the beginning and 223.8MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 75244.85ms. Allocated memory was 330.3MB in the beginning and 856.7MB in the end (delta: 526.4MB). Free memory was 223.2MB in the beginning and 386.9MB in the end (delta: -163.6MB). Peak memory consumption was 363.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 21]: 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 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 75.0s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 126 IncrementalHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 15 mSDtfsCounter, 126 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 16.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 28, 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 72.9s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 68 ConstructedInterpolants, 28 QuantifiedInterpolants, 128967 SizeOfPredicates, 38 NumberOfNonLiveVariables, 502 ConjunctsInSsa, 155 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 12/48 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: 59]: Loop Invariant Derived loop invariant: ((((((((((0 == state_18) && (0 == var_15)) && (0 == state_12)) && (0 == var_11)) && (7 == mask_SORT_5)) && (1 == mask_SORT_1)) && (1 == var_31)) && (1 == var_21)) || ((((((((0 == state_18) && (0 == var_15)) && (0 == var_11)) && (7 == mask_SORT_5)) && (1 == mask_SORT_1)) && (1 == state_12)) && (1 == var_31)) && (1 == var_21))) || ((((((((0 == var_15) && (0 == var_11)) && (7 == mask_SORT_5)) && (1 == mask_SORT_1)) && (1 == state_12)) && (1 == state_18)) && (1 == var_31)) && (1 == var_21))) RESULT: Ultimate proved your program to be correct! [2024-11-05 09:09:41,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...