/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_amount25_file-55.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 08:35:27,042 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 08:35:27,126 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 08:35:27,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 08:35:27,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 08:35:27,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 08:35:27,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 08:35:27,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 08:35:27,159 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 08:35:27,162 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 08:35:27,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 08:35:27,163 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 08:35:27,163 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 08:35:27,164 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 08:35:27,164 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 08:35:27,165 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 08:35:27,165 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 08:35:27,165 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 08:35:27,165 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 08:35:27,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 08:35:27,167 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 08:35:27,167 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 08:35:27,167 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 08:35:27,167 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 08:35:27,168 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 08:35:27,168 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 08:35:27,168 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 08:35:27,168 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 08:35:27,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 08:35:27,168 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 08:35:27,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 08:35:27,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 08:35:27,169 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 08:35:27,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 08:35:27,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 08:35:27,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 08:35:27,170 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 08:35:27,170 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 08:35:27,170 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 08:35:27,170 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 08:35:27,170 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 08:35:27,170 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 08:35:27,171 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 08:35:27,171 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 08:35:27,171 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 08:35:27,171 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 08:35:27,171 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 08:35:27,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 08:35:27,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 08:35:27,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 08:35:27,379 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 08:35:27,379 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 08:35:27,381 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-55.i [2023-12-24 08:35:28,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 08:35:28,681 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 08:35:28,681 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-55.i [2023-12-24 08:35:28,687 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad7a408b5/dfcc23e958a14970886585887db9f806/FLAG7ee7f08d9 [2023-12-24 08:35:28,696 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad7a408b5/dfcc23e958a14970886585887db9f806 [2023-12-24 08:35:28,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 08:35:28,699 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 08:35:28,700 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 08:35:28,700 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 08:35:28,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 08:35:28,703 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 08:35:28" (1/1) ... [2023-12-24 08:35:28,704 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d65199c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:35:28, skipping insertion in model container [2023-12-24 08:35:28,704 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 08:35:28" (1/1) ... [2023-12-24 08:35:28,719 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 08:35:28,806 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_amount25_file-55.i[915,928] [2023-12-24 08:35:28,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 08:35:28,840 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 08:35:28,848 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_amount25_file-55.i[915,928] [2023-12-24 08:35:28,860 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 08:35:28,872 INFO L206 MainTranslator]: Completed translation [2023-12-24 08:35:28,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:35:28 WrapperNode [2023-12-24 08:35:28,872 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 08:35:28,873 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 08:35:28,873 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 08:35:28,873 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 08:35:28,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:35:28" (1/1) ... [2023-12-24 08:35:28,897 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:35:28" (1/1) ... [2023-12-24 08:35:28,914 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2023-12-24 08:35:28,914 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 08:35:28,915 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 08:35:28,915 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 08:35:28,915 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 08:35:28,921 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:35:28" (1/1) ... [2023-12-24 08:35:28,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:35:28" (1/1) ... [2023-12-24 08:35:28,924 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:35:28" (1/1) ... [2023-12-24 08:35:28,935 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 08:35:28,935 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:35:28" (1/1) ... [2023-12-24 08:35:28,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:35:28" (1/1) ... [2023-12-24 08:35:28,943 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:35:28" (1/1) ... [2023-12-24 08:35:28,944 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:35:28" (1/1) ... [2023-12-24 08:35:28,946 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:35:28" (1/1) ... [2023-12-24 08:35:28,947 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:35:28" (1/1) ... [2023-12-24 08:35:28,948 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 08:35:28,949 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 08:35:28,949 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 08:35:28,949 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 08:35:28,950 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:35:28" (1/1) ... [2023-12-24 08:35:28,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 08:35:28,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 08:35:28,971 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 08:35:28,981 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 08:35:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 08:35:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 08:35:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 08:35:28,998 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 08:35:28,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 08:35:28,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 08:35:29,099 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 08:35:29,101 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 08:35:29,742 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 08:35:29,779 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 08:35:29,780 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 08:35:29,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 08:35:29 BoogieIcfgContainer [2023-12-24 08:35:29,780 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 08:35:29,782 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 08:35:29,782 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 08:35:29,803 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 08:35:29,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 08:35:28" (1/3) ... [2023-12-24 08:35:29,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c9146c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 08:35:29, skipping insertion in model container [2023-12-24 08:35:29,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:35:28" (2/3) ... [2023-12-24 08:35:29,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c9146c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 08:35:29, skipping insertion in model container [2023-12-24 08:35:29,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 08:35:29" (3/3) ... [2023-12-24 08:35:29,806 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-55.i [2023-12-24 08:35:29,818 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 08:35:29,818 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 08:35:29,852 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 08:35:29,856 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;@7d7ccc2f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 08:35:29,856 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 08:35:29,859 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-24 08:35:29,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-24 08:35:29,866 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 08:35:29,866 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:35:29,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 08:35:29,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 08:35:29,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1968773639, now seen corresponding path program 1 times [2023-12-24 08:35:29,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 08:35:29,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422745275] [2023-12-24 08:35:29,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:35:29,879 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 08:35:29,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 08:35:29,881 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 08:35:29,897 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 08:35:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:35:30,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 08:35:30,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:35:30,167 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2023-12-24 08:35:30,167 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 08:35:30,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 08:35:30,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422745275] [2023-12-24 08:35:30,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422745275] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 08:35:30,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 08:35:30,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 08:35:30,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033957107] [2023-12-24 08:35:30,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 08:35:30,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 08:35:30,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 08:35:30,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 08:35:30,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 08:35:30,191 INFO L87 Difference]: Start difference. First operand has 45 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-24 08:35:30,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 08:35:30,335 INFO L93 Difference]: Finished difference Result 87 states and 153 transitions. [2023-12-24 08:35:30,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 08:35:30,342 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 102 [2023-12-24 08:35:30,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 08:35:30,347 INFO L225 Difference]: With dead ends: 87 [2023-12-24 08:35:30,347 INFO L226 Difference]: Without dead ends: 43 [2023-12-24 08:35:30,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 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 08:35:30,351 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 08:35:30,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 08:35:30,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-12-24 08:35:30,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-12-24 08:35:30,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-24 08:35:30,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 64 transitions. [2023-12-24 08:35:30,386 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 64 transitions. Word has length 102 [2023-12-24 08:35:30,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 08:35:30,387 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 64 transitions. [2023-12-24 08:35:30,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-24 08:35:30,387 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 64 transitions. [2023-12-24 08:35:30,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-24 08:35:30,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 08:35:30,391 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:35:30,402 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 08:35:30,599 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 08:35:30,600 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 08:35:30,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 08:35:30,601 INFO L85 PathProgramCache]: Analyzing trace with hash 277065655, now seen corresponding path program 1 times [2023-12-24 08:35:30,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 08:35:30,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193411924] [2023-12-24 08:35:30,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:35:30,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 08:35:30,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 08:35:30,603 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 08:35:30,623 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 08:35:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:35:30,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-24 08:35:30,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:36:07,815 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-24 08:36:07,816 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 08:36:07,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 08:36:07,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [193411924] [2023-12-24 08:36:07,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [193411924] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 08:36:07,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 08:36:07,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-24 08:36:07,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595809258] [2023-12-24 08:36:07,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 08:36:07,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-24 08:36:07,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 08:36:07,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-24 08:36:07,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-12-24 08:36:07,819 INFO L87 Difference]: Start difference. First operand 43 states and 64 transitions. Second operand has 16 states, 16 states have (on average 1.8125) internal successors, (29), 14 states have internal predecessors, (29), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-24 08:36:37,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 08:36:37,841 INFO L93 Difference]: Finished difference Result 92 states and 123 transitions. [2023-12-24 08:36:37,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-24 08:36:37,842 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.8125) internal successors, (29), 14 states have internal predecessors, (29), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 102 [2023-12-24 08:36:37,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 08:36:37,843 INFO L225 Difference]: With dead ends: 92 [2023-12-24 08:36:37,843 INFO L226 Difference]: Without dead ends: 90 [2023-12-24 08:36:37,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 33.7s TimeCoverageRelationStatistics Valid=186, Invalid=464, Unknown=0, NotChecked=0, Total=650 [2023-12-24 08:36:37,845 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 82 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-12-24 08:36:37,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 227 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2023-12-24 08:36:37,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-24 08:36:37,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 81. [2023-12-24 08:36:37,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 45 states have internal predecessors, (50), 31 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-24 08:36:37,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 112 transitions. [2023-12-24 08:36:37,856 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 112 transitions. Word has length 102 [2023-12-24 08:36:37,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 08:36:37,857 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 112 transitions. [2023-12-24 08:36:37,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.8125) internal successors, (29), 14 states have internal predecessors, (29), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-24 08:36:37,857 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 112 transitions. [2023-12-24 08:36:37,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-24 08:36:37,858 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 08:36:37,858 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:36:37,877 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 08:36:38,061 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 08:36:38,064 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 08:36:38,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 08:36:38,065 INFO L85 PathProgramCache]: Analyzing trace with hash -15913932, now seen corresponding path program 1 times [2023-12-24 08:36:38,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 08:36:38,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695301897] [2023-12-24 08:36:38,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:36:38,065 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 08:36:38,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 08:36:38,068 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 08:36:38,068 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 08:36:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:36:38,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-24 08:36:38,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:37:25,042 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-24 08:37:25,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 08:37:25,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 08:37:25,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695301897] [2023-12-24 08:37:25,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695301897] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 08:37:25,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 08:37:25,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-24 08:37:25,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412333749] [2023-12-24 08:37:25,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 08:37:25,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-24 08:37:25,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 08:37:25,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-24 08:37:25,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2023-12-24 08:37:25,045 INFO L87 Difference]: Start difference. First operand 81 states and 112 transitions. Second operand has 18 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 16 states have internal predecessors, (30), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-24 08:38:01,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 08:38:01,134 INFO L93 Difference]: Finished difference Result 94 states and 125 transitions. [2023-12-24 08:38:01,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-24 08:38:01,135 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 16 states have internal predecessors, (30), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 103 [2023-12-24 08:38:01,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 08:38:01,136 INFO L225 Difference]: With dead ends: 94 [2023-12-24 08:38:01,136 INFO L226 Difference]: Without dead ends: 92 [2023-12-24 08:38:01,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 48.3s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2023-12-24 08:38:01,138 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 94 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2023-12-24 08:38:01,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 198 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2023-12-24 08:38:01,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-12-24 08:38:01,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 81. [2023-12-24 08:38:01,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 45 states have internal predecessors, (50), 31 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-24 08:38:01,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 112 transitions. [2023-12-24 08:38:01,147 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 112 transitions. Word has length 103 [2023-12-24 08:38:01,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 08:38:01,147 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 112 transitions. [2023-12-24 08:38:01,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 16 states have internal predecessors, (30), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-24 08:38:01,148 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 112 transitions. [2023-12-24 08:38:01,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-24 08:38:01,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 08:38:01,149 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:38:01,162 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 08:38:01,357 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 08:38:01,357 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 08:38:01,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 08:38:01,360 INFO L85 PathProgramCache]: Analyzing trace with hash -502954366, now seen corresponding path program 1 times [2023-12-24 08:38:01,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 08:38:01,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080356841] [2023-12-24 08:38:01,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:38:01,360 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 08:38:01,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 08:38:01,361 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 08:38:01,363 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 08:38:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:38:01,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-24 08:38:01,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:38:46,260 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-24 08:38:46,260 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 08:38:46,260 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 08:38:46,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080356841] [2023-12-24 08:38:46,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080356841] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 08:38:46,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 08:38:46,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-24 08:38:46,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673131942] [2023-12-24 08:38:46,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 08:38:46,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-24 08:38:46,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 08:38:46,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-24 08:38:46,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2023-12-24 08:38:46,265 INFO L87 Difference]: Start difference. First operand 81 states and 112 transitions. Second operand has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 15 states have internal predecessors, (31), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-24 08:39:24,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 08:39:24,592 INFO L93 Difference]: Finished difference Result 98 states and 129 transitions. [2023-12-24 08:39:24,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-24 08:39:24,593 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 15 states have internal predecessors, (31), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 104 [2023-12-24 08:39:24,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 08:39:24,594 INFO L225 Difference]: With dead ends: 98 [2023-12-24 08:39:24,594 INFO L226 Difference]: Without dead ends: 96 [2023-12-24 08:39:24,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 40.7s TimeCoverageRelationStatistics Valid=196, Invalid=506, Unknown=0, NotChecked=0, Total=702 [2023-12-24 08:39:24,595 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 87 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2023-12-24 08:39:24,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 233 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 17.9s Time] [2023-12-24 08:39:24,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-24 08:39:24,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 81. [2023-12-24 08:39:24,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 45 states have internal predecessors, (50), 31 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-24 08:39:24,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 112 transitions. [2023-12-24 08:39:24,603 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 112 transitions. Word has length 104 [2023-12-24 08:39:24,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 08:39:24,603 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 112 transitions. [2023-12-24 08:39:24,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 15 states have internal predecessors, (31), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-24 08:39:24,604 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 112 transitions. [2023-12-24 08:39:24,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-24 08:39:24,605 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 08:39:24,605 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:24,614 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 [2023-12-24 08:39:24,815 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 08:39:24,815 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 08:39:24,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 08:39:24,815 INFO L85 PathProgramCache]: Analyzing trace with hash -502894784, now seen corresponding path program 1 times [2023-12-24 08:39:24,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 08:39:24,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1257901004] [2023-12-24 08:39:24,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:39:24,816 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 08:39:24,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 08:39:24,817 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 08:39:24,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-24 08:39:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:39:24,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-24 08:39:24,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:39:25,001 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-24 08:39:25,001 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 08:39:25,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 08:39:25,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1257901004] [2023-12-24 08:39:25,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1257901004] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 08:39:25,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 08:39:25,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 08:39:25,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885821843] [2023-12-24 08:39:25,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 08:39:25,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 08:39:25,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 08:39:25,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 08:39:25,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 08:39:25,005 INFO L87 Difference]: Start difference. First operand 81 states and 112 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 08:39:25,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 08:39:25,629 INFO L93 Difference]: Finished difference Result 137 states and 185 transitions. [2023-12-24 08:39:25,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 08:39:25,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 104 [2023-12-24 08:39:25,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 08:39:25,631 INFO L225 Difference]: With dead ends: 137 [2023-12-24 08:39:25,631 INFO L226 Difference]: Without dead ends: 0 [2023-12-24 08:39:25,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 08:39:25,636 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 3 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-24 08:39:25,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 105 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-24 08:39:25,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-24 08:39:25,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-24 08:39:25,638 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 08:39:25,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-24 08:39:25,638 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2023-12-24 08:39:25,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 08:39:25,639 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-24 08:39:25,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 08:39:25,642 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-24 08:39:25,645 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-24 08:39:25,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 08:39:25,655 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 (6)] Forceful destruction successful, exit code 0 [2023-12-24 08:39:25,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 08:39:25,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-24 08:39:26,576 INFO L895 garLoopResultBuilder]: At program point L93(line 93) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (and (fp.leq ~var_1_14~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_15~0 .cse0) (fp.leq ~var_1_15~0 ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)) (fp.geq ~var_1_14~0 .cse0) (= currentRoundingMode roundNearestTiesToEven))) [2023-12-24 08:39:26,576 INFO L899 garLoopResultBuilder]: For program point L93-1(lines 67 94) no Hoare annotation was computed. [2023-12-24 08:39:26,576 INFO L895 garLoopResultBuilder]: At program point L89(line 89) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-12-24 08:39:26,577 INFO L899 garLoopResultBuilder]: For program point L89-1(line 89) no Hoare annotation was computed. [2023-12-24 08:39:26,577 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 62) no Hoare annotation was computed. [2023-12-24 08:39:26,577 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-24 08:39:26,577 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-24 08:39:26,577 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-24 08:39:26,577 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 52) no Hoare annotation was computed. [2023-12-24 08:39:26,577 INFO L899 garLoopResultBuilder]: For program point L44-1(lines 44 52) no Hoare annotation was computed. [2023-12-24 08:39:26,577 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-12-24 08:39:26,577 INFO L895 garLoopResultBuilder]: At program point L69(line 69) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-12-24 08:39:26,577 INFO L895 garLoopResultBuilder]: At program point L69-1(line 69) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-12-24 08:39:26,577 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 61) no Hoare annotation was computed. [2023-12-24 08:39:26,577 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-24 08:39:26,577 INFO L895 garLoopResultBuilder]: At program point L86(line 86) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-12-24 08:39:26,577 INFO L895 garLoopResultBuilder]: At program point L86-1(line 86) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-12-24 08:39:26,577 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-12-24 08:39:26,578 INFO L895 garLoopResultBuilder]: At program point L82-1(line 82) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-12-24 08:39:26,578 INFO L895 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-12-24 08:39:26,578 INFO L895 garLoopResultBuilder]: At program point L78-1(line 78) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-12-24 08:39:26,578 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 49) no Hoare annotation was computed. [2023-12-24 08:39:26,578 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2023-12-24 08:39:26,578 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-24 08:39:26,578 INFO L895 garLoopResultBuilder]: At program point L91(line 91) the Hoare annotation is: (and (fp.leq ~var_1_14~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_14~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (= currentRoundingMode roundNearestTiesToEven)) [2023-12-24 08:39:26,578 INFO L899 garLoopResultBuilder]: For program point L91-1(line 91) no Hoare annotation was computed. [2023-12-24 08:39:26,578 INFO L899 garLoopResultBuilder]: For program point L87(line 87) no Hoare annotation was computed. [2023-12-24 08:39:26,578 INFO L895 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-12-24 08:39:26,578 INFO L895 garLoopResultBuilder]: At program point L79(line 79) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-12-24 08:39:26,578 INFO L895 garLoopResultBuilder]: At program point L75(line 75) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-12-24 08:39:26,578 INFO L895 garLoopResultBuilder]: At program point L75-1(line 75) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-12-24 08:39:26,578 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-24 08:39:26,578 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 66) no Hoare annotation was computed. [2023-12-24 08:39:26,578 INFO L895 garLoopResultBuilder]: At program point L104-2(lines 104 110) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-12-24 08:39:26,579 INFO L899 garLoopResultBuilder]: For program point L104-3(lines 104 110) no Hoare annotation was computed. [2023-12-24 08:39:26,579 INFO L899 garLoopResultBuilder]: For program point L55(lines 55 65) no Hoare annotation was computed. [2023-12-24 08:39:26,579 INFO L899 garLoopResultBuilder]: For program point L84(line 84) no Hoare annotation was computed. [2023-12-24 08:39:26,579 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2023-12-24 08:39:26,579 INFO L899 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2023-12-24 08:39:26,579 INFO L895 garLoopResultBuilder]: At program point L72(line 72) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-12-24 08:39:26,579 INFO L895 garLoopResultBuilder]: At program point L72-1(line 72) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-12-24 08:39:26,579 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-24 08:39:26,579 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-24 08:39:26,579 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-24 08:39:26,579 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-24 08:39:26,581 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-24 08:39:26,583 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 08:39:26,588 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-12-24 08:39:26,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 08:39:26 BoogieIcfgContainer [2023-12-24 08:39:26,589 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 08:39:26,589 INFO L158 Benchmark]: Toolchain (without parser) took 237890.57ms. Allocated memory is still 295.7MB. Free memory was 245.3MB in the beginning and 165.8MB in the end (delta: 79.5MB). Peak memory consumption was 79.8MB. Max. memory is 8.0GB. [2023-12-24 08:39:26,590 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 209.7MB. Free memory is still 160.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 08:39:26,590 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.72ms. Allocated memory is still 295.7MB. Free memory was 245.0MB in the beginning and 231.6MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-24 08:39:26,590 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.11ms. Allocated memory is still 295.7MB. Free memory was 231.6MB in the beginning and 229.8MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-24 08:39:26,590 INFO L158 Benchmark]: Boogie Preprocessor took 34.05ms. Allocated memory is still 295.7MB. Free memory was 229.8MB in the beginning and 227.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-24 08:39:26,590 INFO L158 Benchmark]: RCFGBuilder took 830.92ms. Allocated memory is still 295.7MB. Free memory was 227.2MB in the beginning and 262.5MB in the end (delta: -35.3MB). Peak memory consumption was 18.7MB. Max. memory is 8.0GB. [2023-12-24 08:39:26,591 INFO L158 Benchmark]: TraceAbstraction took 236807.44ms. Allocated memory is still 295.7MB. Free memory was 261.9MB in the beginning and 165.8MB in the end (delta: 96.2MB). Peak memory consumption was 95.7MB. Max. memory is 8.0GB. [2023-12-24 08:39:26,591 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 209.7MB. Free memory is still 160.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 172.72ms. Allocated memory is still 295.7MB. Free memory was 245.0MB in the beginning and 231.6MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.11ms. Allocated memory is still 295.7MB. Free memory was 231.6MB in the beginning and 229.8MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.05ms. Allocated memory is still 295.7MB. Free memory was 229.8MB in the beginning and 227.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 830.92ms. Allocated memory is still 295.7MB. Free memory was 227.2MB in the beginning and 262.5MB in the end (delta: -35.3MB). Peak memory consumption was 18.7MB. Max. memory is 8.0GB. * TraceAbstraction took 236807.44ms. Allocated memory is still 295.7MB. Free memory was 261.9MB in the beginning and 165.8MB in the end (delta: 96.2MB). Peak memory consumption was 95.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated * 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, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 236.7s, OverallIterations: 5, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 105.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 308 SdHoareTripleChecker+Valid, 43.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 266 mSDsluCounter, 824 SdHoareTripleChecker+Invalid, 41.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 531 mSDsCounter, 129 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1798 IncrementalHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 129 mSolverCounterUnsat, 293 mSDtfsCounter, 1798 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 541 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 122.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=2, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 35 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 83 PreInvPairs, 116 NumberOfFragments, 87 HoareAnnotationTreeSize, 83 FormulaSimplifications, 10134 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FormulaSimplificationsInter, 1908 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 128.6s InterpolantComputationTime, 515 NumberOfCodeBlocks, 515 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 510 ConstructedInterpolants, 0 QuantifiedInterpolants, 2693 SizeOfPredicates, 63 NumberOfNonLiveVariables, 871 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2720/2720 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: 104]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-12-24 08:39:26,718 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...