/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-87.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 06:21:11,939 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 06:21:12,006 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 06:21:12,011 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 06:21:12,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 06:21:12,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 06:21:12,034 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 06:21:12,034 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 06:21:12,035 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 06:21:12,037 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 06:21:12,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 06:21:12,038 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 06:21:12,038 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 06:21:12,039 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 06:21:12,039 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 06:21:12,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 06:21:12,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 06:21:12,040 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 06:21:12,040 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 06:21:12,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 06:21:12,041 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 06:21:12,041 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 06:21:12,042 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 06:21:12,042 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 06:21:12,042 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 06:21:12,042 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 06:21:12,042 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 06:21:12,042 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 06:21:12,042 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 06:21:12,042 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 06:21:12,043 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 06:21:12,043 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 06:21:12,043 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 06:21:12,044 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 06:21:12,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 06:21:12,044 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 06:21:12,044 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 06:21:12,044 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 06:21:12,044 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 06:21:12,044 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 06:21:12,044 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 06:21:12,045 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 06:21:12,045 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 06:21:12,045 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 06:21:12,045 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 06:21:12,045 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 06:21:12,045 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 06:21:12,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 06:21:12,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 06:21:12,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 06:21:12,274 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 06:21:12,276 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 06:21:12,277 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-87.i [2023-12-24 06:21:13,358 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 06:21:13,500 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 06:21:13,500 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-87.i [2023-12-24 06:21:13,507 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b1900b7e/85d77d8efb68460592a7617a3c1a3be2/FLAGf6cb2b6ca [2023-12-24 06:21:13,521 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b1900b7e/85d77d8efb68460592a7617a3c1a3be2 [2023-12-24 06:21:13,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 06:21:13,524 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 06:21:13,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 06:21:13,527 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 06:21:13,530 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 06:21:13,531 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 06:21:13" (1/1) ... [2023-12-24 06:21:13,531 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@622d740e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:21:13, skipping insertion in model container [2023-12-24 06:21:13,531 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 06:21:13" (1/1) ... [2023-12-24 06:21:13,551 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 06:21:13,649 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-87.i[915,928] [2023-12-24 06:21:13,671 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 06:21:13,688 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 06:21:13,698 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-87.i[915,928] [2023-12-24 06:21:13,707 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 06:21:13,723 INFO L206 MainTranslator]: Completed translation [2023-12-24 06:21:13,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:21:13 WrapperNode [2023-12-24 06:21:13,724 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 06:21:13,724 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 06:21:13,725 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 06:21:13,725 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 06:21:13,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:21:13" (1/1) ... [2023-12-24 06:21:13,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:21:13" (1/1) ... [2023-12-24 06:21:13,750 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 79 [2023-12-24 06:21:13,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 06:21:13,751 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 06:21:13,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 06:21:13,752 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 06:21:13,766 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:21:13" (1/1) ... [2023-12-24 06:21:13,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:21:13" (1/1) ... [2023-12-24 06:21:13,776 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:21:13" (1/1) ... [2023-12-24 06:21:13,784 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]. [2023-12-24 06:21:13,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:21:13" (1/1) ... [2023-12-24 06:21:13,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:21:13" (1/1) ... [2023-12-24 06:21:13,790 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:21:13" (1/1) ... [2023-12-24 06:21:13,792 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:21:13" (1/1) ... [2023-12-24 06:21:13,794 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:21:13" (1/1) ... [2023-12-24 06:21:13,794 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:21:13" (1/1) ... [2023-12-24 06:21:13,796 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 06:21:13,797 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 06:21:13,797 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 06:21:13,797 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 06:21:13,798 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:21:13" (1/1) ... [2023-12-24 06:21:13,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 06:21:13,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 06:21:13,821 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) [2023-12-24 06:21:13,826 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 [2023-12-24 06:21:13,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 06:21:13,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 06:21:13,841 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 06:21:13,841 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 06:21:13,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 06:21:13,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 06:21:13,898 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 06:21:13,900 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 06:21:14,015 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 06:21:14,067 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 06:21:14,067 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 06:21:14,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 06:21:14 BoogieIcfgContainer [2023-12-24 06:21:14,067 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 06:21:14,069 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 06:21:14,069 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 06:21:14,071 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 06:21:14,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 06:21:13" (1/3) ... [2023-12-24 06:21:14,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a623555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 06:21:14, skipping insertion in model container [2023-12-24 06:21:14,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:21:13" (2/3) ... [2023-12-24 06:21:14,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a623555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 06:21:14, skipping insertion in model container [2023-12-24 06:21:14,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 06:21:14" (3/3) ... [2023-12-24 06:21:14,073 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-87.i [2023-12-24 06:21:14,085 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 06:21:14,085 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 06:21:14,115 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 06:21:14,119 INFO L357 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, mHoare=true, 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;@28d9f020, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 06:21:14,120 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 06:21:14,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-24 06:21:14,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-24 06:21:14,129 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:21:14,129 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:21:14,129 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:21:14,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:21:14,133 INFO L85 PathProgramCache]: Analyzing trace with hash -933343933, now seen corresponding path program 1 times [2023-12-24 06:21:14,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:21:14,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390918023] [2023-12-24 06:21:14,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:21:14,142 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 [2023-12-24 06:21:14,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:21:14,144 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) [2023-12-24 06:21:14,163 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 [2023-12-24 06:21:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:21:14,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 06:21:14,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:21:14,331 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-12-24 06:21:14,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 06:21:14,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:21:14,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390918023] [2023-12-24 06:21:14,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390918023] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 06:21:14,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 06:21:14,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 06:21:14,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609382121] [2023-12-24 06:21:14,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:21:14,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 06:21:14,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:21:14,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 06:21:14,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 06:21:14,367 INFO L87 Difference]: Start difference. First operand has 32 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-24 06:21:14,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:21:14,396 INFO L93 Difference]: Finished difference Result 61 states and 103 transitions. [2023-12-24 06:21:14,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 06:21:14,398 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 67 [2023-12-24 06:21:14,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:21:14,403 INFO L225 Difference]: With dead ends: 61 [2023-12-24 06:21:14,403 INFO L226 Difference]: Without dead ends: 30 [2023-12-24 06:21:14,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 06:21:14,408 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 06:21:14,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 06:21:14,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-12-24 06:21:14,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-12-24 06:21:14,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-24 06:21:14,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 42 transitions. [2023-12-24 06:21:14,434 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 42 transitions. Word has length 67 [2023-12-24 06:21:14,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:21:14,434 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 42 transitions. [2023-12-24 06:21:14,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-24 06:21:14,434 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2023-12-24 06:21:14,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-24 06:21:14,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:21:14,436 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:21:14,440 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 [2023-12-24 06:21:14,641 WARN L477 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 [2023-12-24 06:21:14,641 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:21:14,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:21:14,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1246260673, now seen corresponding path program 1 times [2023-12-24 06:21:14,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:21:14,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478604958] [2023-12-24 06:21:14,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:21:14,643 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 [2023-12-24 06:21:14,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:21:14,644 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) [2023-12-24 06:21:14,668 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 [2023-12-24 06:21:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:21:14,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-24 06:21:14,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:21:15,781 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 102 proven. 21 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-12-24 06:21:15,782 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 06:21:16,616 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-12-24 06:21:16,616 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:21:16,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478604958] [2023-12-24 06:21:16,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478604958] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 06:21:16,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 06:21:16,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 18 [2023-12-24 06:21:16,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798117342] [2023-12-24 06:21:16,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:21:16,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 06:21:16,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:21:16,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 06:21:16,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2023-12-24 06:21:16,619 INFO L87 Difference]: Start difference. First operand 30 states and 42 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-24 06:21:17,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:21:17,061 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2023-12-24 06:21:17,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-24 06:21:17,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 67 [2023-12-24 06:21:17,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:21:17,063 INFO L225 Difference]: With dead ends: 43 [2023-12-24 06:21:17,063 INFO L226 Difference]: Without dead ends: 41 [2023-12-24 06:21:17,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2023-12-24 06:21:17,064 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 31 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-24 06:21:17,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 90 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-24 06:21:17,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-12-24 06:21:17,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 36. [2023-12-24 06:21:17,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-24 06:21:17,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2023-12-24 06:21:17,071 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 67 [2023-12-24 06:21:17,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:21:17,071 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2023-12-24 06:21:17,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-24 06:21:17,072 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2023-12-24 06:21:17,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-24 06:21:17,072 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:21:17,073 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:21:17,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-24 06:21:17,278 WARN L477 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 [2023-12-24 06:21:17,278 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:21:17,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:21:17,279 INFO L85 PathProgramCache]: Analyzing trace with hash -20516218, now seen corresponding path program 1 times [2023-12-24 06:21:17,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:21:17,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914569409] [2023-12-24 06:21:17,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:21:17,279 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 [2023-12-24 06:21:17,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:21:17,280 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) [2023-12-24 06:21:17,284 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 [2023-12-24 06:21:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:21:17,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-24 06:21:17,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:21:18,371 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 102 proven. 21 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-12-24 06:21:18,371 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 06:21:19,217 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-12-24 06:21:19,217 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:21:19,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914569409] [2023-12-24 06:21:19,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [914569409] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 06:21:19,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 06:21:19,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 20 [2023-12-24 06:21:19,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312583171] [2023-12-24 06:21:19,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:21:19,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-24 06:21:19,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:21:19,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-24 06:21:19,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2023-12-24 06:21:19,219 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. Second operand has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-24 06:21:19,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:21:19,644 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2023-12-24 06:21:19,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-24 06:21:19,644 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 68 [2023-12-24 06:21:19,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:21:19,645 INFO L225 Difference]: With dead ends: 48 [2023-12-24 06:21:19,645 INFO L226 Difference]: Without dead ends: 46 [2023-12-24 06:21:19,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2023-12-24 06:21:19,646 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 51 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 06:21:19,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 83 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 06:21:19,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-12-24 06:21:19,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2023-12-24 06:21:19,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-24 06:21:19,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2023-12-24 06:21:19,653 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 50 transitions. Word has length 68 [2023-12-24 06:21:19,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:21:19,653 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 50 transitions. [2023-12-24 06:21:19,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-24 06:21:19,653 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2023-12-24 06:21:19,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-24 06:21:19,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:21:19,654 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:21:19,663 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 [2023-12-24 06:21:19,858 WARN L477 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 [2023-12-24 06:21:19,859 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:21:19,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:21:19,860 INFO L85 PathProgramCache]: Analyzing trace with hash -20456636, now seen corresponding path program 1 times [2023-12-24 06:21:19,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:21:19,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512065196] [2023-12-24 06:21:19,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:21:19,860 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 [2023-12-24 06:21:19,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:21:19,862 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) [2023-12-24 06:21:19,864 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 [2023-12-24 06:21:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:21:19,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 06:21:19,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:21:19,989 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 114 proven. 18 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-24 06:21:19,989 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 06:21:20,053 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 12 proven. 18 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-12-24 06:21:20,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:21:20,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512065196] [2023-12-24 06:21:20,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [512065196] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 06:21:20,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 06:21:20,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-24 06:21:20,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303966988] [2023-12-24 06:21:20,054 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 06:21:20,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-24 06:21:20,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:21:20,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-24 06:21:20,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-24 06:21:20,056 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-24 06:21:20,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:21:20,164 INFO L93 Difference]: Finished difference Result 81 states and 100 transitions. [2023-12-24 06:21:20,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 06:21:20,164 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 68 [2023-12-24 06:21:20,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:21:20,166 INFO L225 Difference]: With dead ends: 81 [2023-12-24 06:21:20,166 INFO L226 Difference]: Without dead ends: 0 [2023-12-24 06:21:20,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-24 06:21:20,171 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 24 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 06:21:20,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 39 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 06:21:20,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-24 06:21:20,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-24 06:21:20,174 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) [2023-12-24 06:21:20,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-24 06:21:20,174 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2023-12-24 06:21:20,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:21:20,174 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-24 06:21:20,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-24 06:21:20,174 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-24 06:21:20,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-24 06:21:20,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 06:21:20,184 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 (5)] Forceful destruction successful, exit code 0 [2023-12-24 06:21:20,381 WARN L477 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 [2023-12-24 06:21:20,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-24 06:21:20,671 INFO L899 garLoopResultBuilder]: For program point L60(line 60) no Hoare annotation was computed. [2023-12-24 06:21:20,671 INFO L895 garLoopResultBuilder]: At program point L56(line 56) the Hoare annotation is: (and (bvsge ((_ zero_extend 24) ~var_1_5~0) (_ bv1 32)) (fp.eq ~var_1_10~0 ~var_1_10~0)) [2023-12-24 06:21:20,672 INFO L895 garLoopResultBuilder]: At program point L56-1(line 56) the Hoare annotation is: (and (bvsge ((_ zero_extend 24) ~var_1_5~0) (_ bv1 32)) (fp.eq ~var_1_10~0 ~var_1_10~0)) [2023-12-24 06:21:20,672 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-24 06:21:20,672 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-24 06:21:20,672 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2023-12-24 06:21:20,672 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-24 06:21:20,672 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 42) no Hoare annotation was computed. [2023-12-24 06:21:20,672 INFO L895 garLoopResultBuilder]: At program point L73-2(lines 73 79) the Hoare annotation is: (and (bvsge ((_ zero_extend 24) ~var_1_5~0) (_ bv1 32)) (fp.eq ~var_1_10~0 ~var_1_10~0)) [2023-12-24 06:21:20,672 INFO L899 garLoopResultBuilder]: For program point L40-2(lines 33 44) no Hoare annotation was computed. [2023-12-24 06:21:20,672 INFO L899 garLoopResultBuilder]: For program point L73-3(lines 73 79) no Hoare annotation was computed. [2023-12-24 06:21:20,672 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-12-24 06:21:20,672 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-24 06:21:20,672 INFO L895 garLoopResultBuilder]: At program point L53(line 53) the Hoare annotation is: (fp.eq ~var_1_10~0 ~var_1_10~0) [2023-12-24 06:21:20,673 INFO L895 garLoopResultBuilder]: At program point L53-1(line 53) the Hoare annotation is: (and (bvsge ((_ zero_extend 24) ~var_1_5~0) (_ bv1 32)) (fp.eq ~var_1_10~0 ~var_1_10~0)) [2023-12-24 06:21:20,673 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 43) no Hoare annotation was computed. [2023-12-24 06:21:20,673 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-24 06:21:20,673 INFO L895 garLoopResultBuilder]: At program point L62(line 62) the Hoare annotation is: (bvsge ((_ zero_extend 24) ~var_1_5~0) (_ bv1 32)) [2023-12-24 06:21:20,673 INFO L899 garLoopResultBuilder]: For program point L62-1(lines 45 63) no Hoare annotation was computed. [2023-12-24 06:21:20,673 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-12-24 06:21:20,673 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (and (bvsge ((_ zero_extend 24) ~var_1_5~0) (_ bv1 32)) (fp.eq ~var_1_10~0 ~var_1_10~0)) [2023-12-24 06:21:20,673 INFO L895 garLoopResultBuilder]: At program point L50-1(line 50) the Hoare annotation is: (and (bvsge ((_ zero_extend 24) ~var_1_5~0) (_ bv1 32)) (fp.eq ~var_1_10~0 ~var_1_10~0)) [2023-12-24 06:21:20,673 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-24 06:21:20,673 INFO L895 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: (and (bvsge ((_ zero_extend 24) ~var_1_5~0) (_ bv1 32)) (fp.eq ~var_1_10~0 ~var_1_10~0)) [2023-12-24 06:21:20,673 INFO L895 garLoopResultBuilder]: At program point L59-1(line 59) the Hoare annotation is: (and (bvsge ((_ zero_extend 24) ~var_1_5~0) (_ bv1 32)) (fp.eq ~var_1_10~0 ~var_1_10~0)) [2023-12-24 06:21:20,673 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2023-12-24 06:21:20,674 INFO L895 garLoopResultBuilder]: At program point L47(line 47) the Hoare annotation is: (and (bvsge ((_ zero_extend 24) ~var_1_5~0) (_ bv1 32)) (fp.eq ~var_1_10~0 ~var_1_10~0)) [2023-12-24 06:21:20,674 INFO L895 garLoopResultBuilder]: At program point L47-1(line 47) the Hoare annotation is: (and (bvsge ((_ zero_extend 24) ~var_1_5~0) (_ bv1 32)) (fp.eq ~var_1_10~0 ~var_1_10~0)) [2023-12-24 06:21:20,674 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-24 06:21:20,674 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-24 06:21:20,674 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-24 06:21:20,674 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-24 06:21:20,676 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-24 06:21:20,678 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 06:21:20,686 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~32 [2023-12-24 06:21:20,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 06:21:20 BoogieIcfgContainer [2023-12-24 06:21:20,687 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 06:21:20,689 INFO L158 Benchmark]: Toolchain (without parser) took 7163.26ms. Allocated memory was 309.3MB in the beginning and 447.7MB in the end (delta: 138.4MB). Free memory was 254.0MB in the beginning and 386.4MB in the end (delta: -132.4MB). Peak memory consumption was 5.6MB. Max. memory is 8.0GB. [2023-12-24 06:21:20,689 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 235.9MB. Free memory is still 183.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 06:21:20,689 INFO L158 Benchmark]: CACSL2BoogieTranslator took 197.29ms. Allocated memory is still 309.3MB. Free memory was 253.7MB in the beginning and 241.7MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-24 06:21:20,689 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.49ms. Allocated memory is still 309.3MB. Free memory was 241.7MB in the beginning and 240.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-24 06:21:20,690 INFO L158 Benchmark]: Boogie Preprocessor took 45.14ms. Allocated memory is still 309.3MB. Free memory was 240.0MB in the beginning and 237.5MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-24 06:21:20,691 INFO L158 Benchmark]: RCFGBuilder took 270.44ms. Allocated memory is still 309.3MB. Free memory was 237.5MB in the beginning and 272.6MB in the end (delta: -35.1MB). Peak memory consumption was 18.2MB. Max. memory is 8.0GB. [2023-12-24 06:21:20,694 INFO L158 Benchmark]: TraceAbstraction took 6618.21ms. Allocated memory was 309.3MB in the beginning and 447.7MB in the end (delta: 138.4MB). Free memory was 271.6MB in the beginning and 386.4MB in the end (delta: -114.8MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-24 06:21:20,696 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 235.9MB. Free memory is still 183.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 197.29ms. Allocated memory is still 309.3MB. Free memory was 253.7MB in the beginning and 241.7MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.49ms. Allocated memory is still 309.3MB. Free memory was 241.7MB in the beginning and 240.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.14ms. Allocated memory is still 309.3MB. Free memory was 240.0MB in the beginning and 237.5MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 270.44ms. Allocated memory is still 309.3MB. Free memory was 237.5MB in the beginning and 272.6MB in the end (delta: -35.1MB). Peak memory consumption was 18.2MB. Max. memory is 8.0GB. * TraceAbstraction took 6618.21ms. Allocated memory was 309.3MB in the beginning and 447.7MB in the end (delta: 138.4MB). Free memory was 271.6MB in the beginning and 386.4MB in the end (delta: -114.8MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~32 * 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, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 4, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 110 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 251 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 131 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 289 IncrementalHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 120 mSDtfsCounter, 289 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 479 GetRequests, 427 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=3, InterpolantAutomatonStates: 31, 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, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 45 PreInvPairs, 57 NumberOfFragments, 88 HoareAnnotationTreeSize, 45 FormulaSimplifications, 123 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FormulaSimplificationsInter, 659 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 270 NumberOfCodeBlocks, 270 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 466 ConstructedInterpolants, 9 QuantifiedInterpolants, 1940 SizeOfPredicates, 43 NumberOfNonLiveVariables, 469 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 1462/1540 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: 73]: Loop Invariant Derived loop invariant: (var_1_5 >= 1) RESULT: Ultimate proved your program to be correct! [2023-12-24 06:21:20,720 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...