/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_fillercode_fillercodestructure_filler-pr-cn_file-80.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 12:27:18,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 12:27:18,893 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 12:27:18,897 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 12:27:18,897 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 12:27:18,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 12:27:18,920 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 12:27:18,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 12:27:18,921 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 12:27:18,922 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 12:27:18,922 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 12:27:18,922 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 12:27:18,923 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 12:27:18,923 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 12:27:18,923 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 12:27:18,924 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 12:27:18,924 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 12:27:18,924 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 12:27:18,925 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 12:27:18,925 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 12:27:18,925 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 12:27:18,932 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 12:27:18,933 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 12:27:18,933 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 12:27:18,937 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 12:27:18,937 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 12:27:18,937 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 12:27:18,937 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 12:27:18,938 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 12:27:18,938 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 12:27:18,939 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 12:27:18,939 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 12:27:18,939 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 12:27:18,939 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 12:27:18,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 12:27:18,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 12:27:18,939 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 12:27:18,939 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 12:27:18,940 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 12:27:18,940 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 12:27:18,940 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 12:27:18,940 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 12:27:18,940 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 12:27:18,940 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 12:27:18,941 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 12:27:18,941 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 12:27:18,941 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 12:27:19,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 12:27:19,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 12:27:19,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 12:27:19,184 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 12:27:19,184 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 12:27:19,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-80.i [2023-12-23 12:27:20,506 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 12:27:20,717 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 12:27:20,717 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-80.i [2023-12-23 12:27:20,725 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d30fce21/10275ead34374ec4815f7beb238c06c4/FLAG50b7cc2dc [2023-12-23 12:27:20,738 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d30fce21/10275ead34374ec4815f7beb238c06c4 [2023-12-23 12:27:20,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 12:27:20,741 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 12:27:20,742 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 12:27:20,742 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 12:27:20,750 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 12:27:20,750 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:27:20" (1/1) ... [2023-12-23 12:27:20,751 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29ac24cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:27:20, skipping insertion in model container [2023-12-23 12:27:20,752 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:27:20" (1/1) ... [2023-12-23 12:27:20,783 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 12:27:20,923 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_fillercode_fillercodestructure_filler-pr-cn_file-80.i[919,932] [2023-12-23 12:27:20,982 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 12:27:21,011 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 12:27:21,022 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_fillercode_fillercodestructure_filler-pr-cn_file-80.i[919,932] [2023-12-23 12:27:21,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 12:27:21,113 INFO L206 MainTranslator]: Completed translation [2023-12-23 12:27:21,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:27:21 WrapperNode [2023-12-23 12:27:21,114 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 12:27:21,116 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 12:27:21,117 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 12:27:21,117 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 12:27:21,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:27:21" (1/1) ... [2023-12-23 12:27:21,136 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:27:21" (1/1) ... [2023-12-23 12:27:21,165 INFO L138 Inliner]: procedures = 27, calls = 62, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 259 [2023-12-23 12:27:21,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 12:27:21,166 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 12:27:21,166 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 12:27:21,166 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 12:27:21,176 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:27:21" (1/1) ... [2023-12-23 12:27:21,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:27:21" (1/1) ... [2023-12-23 12:27:21,181 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:27:21" (1/1) ... [2023-12-23 12:27:21,195 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]. [2023-12-23 12:27:21,196 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:27:21" (1/1) ... [2023-12-23 12:27:21,196 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:27:21" (1/1) ... [2023-12-23 12:27:21,207 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:27:21" (1/1) ... [2023-12-23 12:27:21,210 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:27:21" (1/1) ... [2023-12-23 12:27:21,213 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:27:21" (1/1) ... [2023-12-23 12:27:21,215 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:27:21" (1/1) ... [2023-12-23 12:27:21,219 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 12:27:21,220 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 12:27:21,220 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 12:27:21,220 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 12:27:21,221 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:27:21" (1/1) ... [2023-12-23 12:27:21,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 12:27:21,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 12:27:21,251 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) [2023-12-23 12:27:21,281 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 [2023-12-23 12:27:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 12:27:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 12:27:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 12:27:21,289 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 12:27:21,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 12:27:21,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 12:27:21,388 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 12:27:21,392 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 12:27:57,933 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 12:27:57,996 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 12:27:57,996 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 12:27:57,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:27:57 BoogieIcfgContainer [2023-12-23 12:27:57,997 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 12:27:57,999 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 12:27:57,999 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 12:27:58,008 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 12:27:58,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 12:27:20" (1/3) ... [2023-12-23 12:27:58,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27be7d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:27:58, skipping insertion in model container [2023-12-23 12:27:58,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:27:21" (2/3) ... [2023-12-23 12:27:58,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27be7d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:27:58, skipping insertion in model container [2023-12-23 12:27:58,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:27:57" (3/3) ... [2023-12-23 12:27:58,010 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-80.i [2023-12-23 12:27:58,023 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 12:27:58,024 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 12:27:58,064 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 12:27:58,069 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;@35315604, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 12:27:58,069 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 12:27:58,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 60 states have internal predecessors, (81), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-23 12:27:58,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-12-23 12:27:58,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 12:27:58,097 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 12:27:58,097 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 12:27:58,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 12:27:58,103 INFO L85 PathProgramCache]: Analyzing trace with hash -582116354, now seen corresponding path program 1 times [2023-12-23 12:27:58,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 12:27:58,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1857102358] [2023-12-23 12:27:58,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 12:27:58,118 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 [2023-12-23 12:27:58,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 12:27:58,121 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) [2023-12-23 12:27:58,126 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 [2023-12-23 12:27:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 12:27:59,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 12:27:59,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 12:28:05,044 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2023-12-23 12:28:05,044 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 12:28:05,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 12:28:05,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1857102358] [2023-12-23 12:28:05,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1857102358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 12:28:05,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 12:28:05,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 12:28:05,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588032108] [2023-12-23 12:28:05,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 12:28:05,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 12:28:05,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 12:28:05,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 12:28:05,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 12:28:05,100 INFO L87 Difference]: Start difference. First operand has 111 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 60 states have internal predecessors, (81), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2023-12-23 12:28:10,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:28:14,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:28:18,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:28:18,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 12:28:18,567 INFO L93 Difference]: Finished difference Result 325 states and 627 transitions. [2023-12-23 12:28:18,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 12:28:18,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 294 [2023-12-23 12:28:18,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 12:28:18,580 INFO L225 Difference]: With dead ends: 325 [2023-12-23 12:28:18,580 INFO L226 Difference]: Without dead ends: 215 [2023-12-23 12:28:18,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 12:28:18,586 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 27 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-12-23 12:28:18,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 342 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 3 Unknown, 0 Unchecked, 13.4s Time] [2023-12-23 12:28:18,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2023-12-23 12:28:18,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213. [2023-12-23 12:28:18,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 112 states have (on average 1.2321428571428572) internal successors, (138), 112 states have internal predecessors, (138), 98 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-23 12:28:18,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 334 transitions. [2023-12-23 12:28:18,647 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 334 transitions. Word has length 294 [2023-12-23 12:28:18,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 12:28:18,652 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 334 transitions. [2023-12-23 12:28:18,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2023-12-23 12:28:18,653 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 334 transitions. [2023-12-23 12:28:18,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-12-23 12:28:18,660 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 12:28:18,660 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 12:28:18,708 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 (2)] Forceful destruction successful, exit code 0 [2023-12-23 12:28:18,888 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 [2023-12-23 12:28:18,890 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 12:28:18,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 12:28:18,890 INFO L85 PathProgramCache]: Analyzing trace with hash 429000896, now seen corresponding path program 1 times [2023-12-23 12:28:18,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 12:28:18,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250360089] [2023-12-23 12:28:18,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 12:28:18,892 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 [2023-12-23 12:28:18,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 12:28:18,893 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) [2023-12-23 12:28:18,900 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 [2023-12-23 12:28:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 12:28:20,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 12:28:20,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 12:28:21,012 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2023-12-23 12:28:21,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 12:28:21,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 12:28:21,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250360089] [2023-12-23 12:28:21,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [250360089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 12:28:21,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 12:28:21,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 12:28:21,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573337510] [2023-12-23 12:28:21,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 12:28:21,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 12:28:21,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 12:28:21,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 12:28:21,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-23 12:28:21,017 INFO L87 Difference]: Start difference. First operand 213 states and 334 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2023-12-23 12:28:26,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:28:30,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 12:28:34,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 12:28:38,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 12:28:42,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 12:28:42,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 12:28:42,917 INFO L93 Difference]: Finished difference Result 637 states and 1000 transitions. [2023-12-23 12:28:42,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 12:28:42,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 294 [2023-12-23 12:28:42,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 12:28:42,922 INFO L225 Difference]: With dead ends: 637 [2023-12-23 12:28:42,922 INFO L226 Difference]: Without dead ends: 425 [2023-12-23 12:28:42,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 12:28:42,925 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 195 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2023-12-23 12:28:42,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 525 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 5 Unknown, 0 Unchecked, 21.8s Time] [2023-12-23 12:28:42,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2023-12-23 12:28:42,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 219. [2023-12-23 12:28:42,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 118 states have (on average 1.2372881355932204) internal successors, (146), 118 states have internal predecessors, (146), 98 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-23 12:28:42,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 342 transitions. [2023-12-23 12:28:42,979 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 342 transitions. Word has length 294 [2023-12-23 12:28:42,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 12:28:42,980 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 342 transitions. [2023-12-23 12:28:42,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2023-12-23 12:28:42,980 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 342 transitions. [2023-12-23 12:28:42,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-12-23 12:28:42,983 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 12:28:42,983 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 12:28:43,014 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 [2023-12-23 12:28:43,200 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 [2023-12-23 12:28:43,201 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 12:28:43,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 12:28:43,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1159347006, now seen corresponding path program 1 times [2023-12-23 12:28:43,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 12:28:43,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878240604] [2023-12-23 12:28:43,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 12:28:43,203 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 [2023-12-23 12:28:43,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 12:28:43,213 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) [2023-12-23 12:28:43,214 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 [2023-12-23 12:28:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 12:28:44,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 12:28:44,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 12:28:49,679 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2023-12-23 12:28:49,680 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 12:28:49,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 12:28:49,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878240604] [2023-12-23 12:28:49,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878240604] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 12:28:49,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 12:28:49,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 12:28:49,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390355208] [2023-12-23 12:28:49,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 12:28:49,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 12:28:49,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 12:28:49,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 12:28:49,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-23 12:28:49,682 INFO L87 Difference]: Start difference. First operand 219 states and 342 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2023-12-23 12:28:55,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:29:00,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:29:04,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:29:08,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:29:12,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:29:17,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:29:21,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:29:25,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:29:29,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:29:33,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:29:38,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:29:43,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:29:47,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:29:52,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:29:56,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:30:00,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:30:04,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:30:04,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 12:30:04,121 INFO L93 Difference]: Finished difference Result 563 states and 874 transitions. [2023-12-23 12:30:04,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 12:30:04,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 294 [2023-12-23 12:30:04,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 12:30:04,519 INFO L225 Difference]: With dead ends: 563 [2023-12-23 12:30:04,519 INFO L226 Difference]: Without dead ends: 345 [2023-12-23 12:30:04,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-23 12:30:04,522 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 99 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 99 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.2s IncrementalHoareTripleChecker+Time [2023-12-23 12:30:04,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 587 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 117 Invalid, 17 Unknown, 0 Unchecked, 74.2s Time] [2023-12-23 12:30:04,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2023-12-23 12:30:04,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 325. [2023-12-23 12:30:04,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 174 states have (on average 1.2183908045977012) internal successors, (212), 174 states have internal predecessors, (212), 147 states have call successors, (147), 3 states have call predecessors, (147), 3 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2023-12-23 12:30:04,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 506 transitions. [2023-12-23 12:30:04,619 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 506 transitions. Word has length 294 [2023-12-23 12:30:04,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 12:30:04,619 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 506 transitions. [2023-12-23 12:30:04,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2023-12-23 12:30:04,620 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 506 transitions. [2023-12-23 12:30:04,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2023-12-23 12:30:04,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 12:30:04,626 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 12:30:04,672 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 [2023-12-23 12:30:04,840 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 [2023-12-23 12:30:04,841 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 12:30:04,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 12:30:04,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1237512297, now seen corresponding path program 1 times [2023-12-23 12:30:04,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 12:30:04,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269781233] [2023-12-23 12:30:04,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 12:30:04,847 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 [2023-12-23 12:30:04,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 12:30:04,848 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) [2023-12-23 12:30:04,879 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 [2023-12-23 12:30:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 12:30:06,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-23 12:30:06,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 12:30:12,252 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 2237 proven. 96 refuted. 0 times theorem prover too weak. 2371 trivial. 0 not checked. [2023-12-23 12:30:12,252 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 12:30:12,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 12:30:12,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269781233] [2023-12-23 12:30:12,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269781233] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 12:30:12,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2055746348] [2023-12-23 12:30:12,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 12:30:12,795 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 12:30:12,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 12:30:12,957 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 12:30:12,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-23 12:30:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 12:30:15,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 12:30:15,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 12:30:17,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 2218 proven. 51 refuted. 0 times theorem prover too weak. 2435 trivial. 0 not checked. [2023-12-23 12:30:17,540 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 12:30:17,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2055746348] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 12:30:17,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 12:30:17,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 8 [2023-12-23 12:30:17,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739245333] [2023-12-23 12:30:17,835 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 12:30:17,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-23 12:30:17,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 12:30:17,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-23 12:30:17,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-23 12:30:17,836 INFO L87 Difference]: Start difference. First operand 325 states and 506 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 3 states have call successors, (65), 3 states have call predecessors, (65), 5 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2023-12-23 12:30:26,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:30:30,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:30:34,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:30:38,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:30:42,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 12:30:42,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 12:30:42,624 INFO L93 Difference]: Finished difference Result 679 states and 1035 transitions. [2023-12-23 12:30:42,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-23 12:30:42,913 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 3 states have call successors, (65), 3 states have call predecessors, (65), 5 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) Word has length 296 [2023-12-23 12:30:42,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 12:30:42,916 INFO L225 Difference]: With dead ends: 679 [2023-12-23 12:30:42,916 INFO L226 Difference]: Without dead ends: 355 [2023-12-23 12:30:42,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 626 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2023-12-23 12:30:42,918 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 132 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 79 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.3s IncrementalHoareTripleChecker+Time [2023-12-23 12:30:42,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 306 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 347 Invalid, 5 Unknown, 0 Unchecked, 24.3s Time] [2023-12-23 12:30:42,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-12-23 12:30:42,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 349. [2023-12-23 12:30:42,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 192 states have (on average 1.1822916666666667) internal successors, (227), 192 states have internal predecessors, (227), 147 states have call successors, (147), 9 states have call predecessors, (147), 9 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2023-12-23 12:30:42,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 521 transitions. [2023-12-23 12:30:42,963 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 521 transitions. Word has length 296 [2023-12-23 12:30:42,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 12:30:42,963 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 521 transitions. [2023-12-23 12:30:42,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 3 states have call successors, (65), 3 states have call predecessors, (65), 5 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2023-12-23 12:30:42,964 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 521 transitions. [2023-12-23 12:30:42,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-12-23 12:30:42,965 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 12:30:42,966 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 12:30:42,997 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 [2023-12-23 12:30:43,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-23 12:30:43,380 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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 12:30:43,380 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 12:30:43,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 12:30:43,384 INFO L85 PathProgramCache]: Analyzing trace with hash 646260002, now seen corresponding path program 1 times [2023-12-23 12:30:43,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 12:30:43,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441160199] [2023-12-23 12:30:43,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 12:30:43,384 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 [2023-12-23 12:30:43,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 12:30:43,388 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2023-12-23 12:30:43,425 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 (7)] Waiting until timeout for monitored process [2023-12-23 12:30:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 12:30:44,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-23 12:30:44,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 12:31:01,271 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:31:09,979 WARN L293 SmtUtils]: Spent 5.83s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:31:18,181 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:31:24,915 WARN L293 SmtUtils]: Spent 6.73s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:31:28,970 WARN L854 $PredicateComparison]: unable to prove that (and (bvsle ((_ zero_extend 24) c_~var_1_21~0) (_ bv0 32)) (= (bvadd c_~var_1_1~0 (_ bv8 16)) (_ bv0 16)) (fp.lt (fp.mul c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_2~0 c_~var_1_3~0) c_~var_1_4~0) c_~var_1_5~0) (= c_~var_1_12~0 c_~var_1_10~0) (= c_~var_1_9~0 ((_ extract 15 0) (bvadd ((_ zero_extend 24) c_~last_1_var_1_10~0) (_ bv4294967040 32))))) is different from false [2023-12-23 12:31:38,660 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:31:44,476 WARN L293 SmtUtils]: Spent 5.82s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:31:52,676 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:32:00,864 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:32:08,982 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:32:16,474 WARN L293 SmtUtils]: Spent 7.49s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:32:27,238 WARN L293 SmtUtils]: Spent 7.56s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:32:33,830 WARN L293 SmtUtils]: Spent 6.59s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:32:46,480 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:32:53,277 WARN L293 SmtUtils]: Spent 6.80s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:33:01,468 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:33:13,739 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:33:18,914 WARN L293 SmtUtils]: Spent 5.17s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:33:27,109 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:33:35,302 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:33:43,488 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:33:49,269 WARN L293 SmtUtils]: Spent 5.78s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:33:57,446 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:34:04,927 WARN L293 SmtUtils]: Spent 7.48s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:34:13,110 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:34:24,371 WARN L876 $PredicateComparison]: unable to prove that (and (let ((.cse0 (bvadd (bvneg ((_ sign_extend 16) c_~var_1_9~0)) c_~var_1_23~0)) (.cse2 ((_ zero_extend 24) c_~var_1_10~0))) (let ((.cse1 (bvult .cse0 .cse2))) (or (and (= c_~var_1_22~0 .cse0) .cse1) (and (= c_~var_1_22~0 .cse2) (not .cse1))))) (bvsle ((_ zero_extend 24) c_~var_1_21~0) (_ bv0 32)) (= (bvadd c_~var_1_1~0 (_ bv8 16)) (_ bv0 16)) (fp.lt (fp.mul c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_2~0 c_~var_1_3~0) c_~var_1_4~0) c_~var_1_5~0) (= c_~var_1_12~0 c_~var_1_10~0) (= c_~var_1_9~0 ((_ extract 15 0) (bvadd ((_ zero_extend 24) c_~last_1_var_1_10~0) (_ bv4294967040 32))))) is different from true [2023-12-23 12:34:32,546 WARN L293 SmtUtils]: Spent 8.17s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:34:45,598 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:34:53,780 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:35:02,626 WARN L293 SmtUtils]: Spent 8.17s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:35:09,881 WARN L293 SmtUtils]: Spent 7.25s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:35:18,062 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:35:26,182 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:35:39,348 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:35:47,525 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:35:54,404 WARN L293 SmtUtils]: Spent 6.88s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:36:02,329 WARN L293 SmtUtils]: Spent 7.92s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:36:10,514 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:36:18,700 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:36:26,892 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:36:35,012 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:36:41,555 WARN L293 SmtUtils]: Spent 6.54s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:36:49,737 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:36:57,575 WARN L293 SmtUtils]: Spent 7.84s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:37:05,758 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:37:12,661 WARN L293 SmtUtils]: Spent 6.90s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:37:20,844 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:37:26,685 WARN L293 SmtUtils]: Spent 5.84s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:37:39,799 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:37:46,903 WARN L854 $PredicateComparison]: unable to prove that (and (let ((.cse0 (bvadd (bvneg ((_ sign_extend 16) c_~var_1_9~0)) c_~var_1_23~0)) (.cse2 ((_ zero_extend 24) c_~var_1_10~0))) (let ((.cse1 (bvult .cse0 .cse2))) (or (and (= c_~var_1_22~0 .cse0) .cse1) (and (= c_~var_1_22~0 .cse2) (not .cse1))))) (bvsle ((_ zero_extend 24) c_~var_1_21~0) (_ bv0 32)) (= (bvadd c_~var_1_1~0 (_ bv8 16)) (_ bv0 16)) (fp.lt (fp.mul c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_2~0 c_~var_1_3~0) c_~var_1_4~0) c_~var_1_5~0) (= c_~var_1_12~0 c_~var_1_10~0) (= c_~var_1_19~0 (_ bv0 8)) (= c_~var_1_9~0 ((_ extract 15 0) (bvadd ((_ zero_extend 24) c_~last_1_var_1_10~0) (_ bv4294967040 32))))) is different from false [2023-12-23 12:37:50,957 WARN L876 $PredicateComparison]: unable to prove that (and (let ((.cse0 (bvadd (bvneg ((_ sign_extend 16) c_~var_1_9~0)) c_~var_1_23~0)) (.cse2 ((_ zero_extend 24) c_~var_1_10~0))) (let ((.cse1 (bvult .cse0 .cse2))) (or (and (= c_~var_1_22~0 .cse0) .cse1) (and (= c_~var_1_22~0 .cse2) (not .cse1))))) (bvsle ((_ zero_extend 24) c_~var_1_21~0) (_ bv0 32)) (= (bvadd c_~var_1_1~0 (_ bv8 16)) (_ bv0 16)) (fp.lt (fp.mul c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_2~0 c_~var_1_3~0) c_~var_1_4~0) c_~var_1_5~0) (= c_~var_1_12~0 c_~var_1_10~0) (= c_~var_1_19~0 (_ bv0 8)) (= c_~var_1_9~0 ((_ extract 15 0) (bvadd ((_ zero_extend 24) c_~last_1_var_1_10~0) (_ bv4294967040 32))))) is different from true [2023-12-23 12:37:59,147 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:38:07,332 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:38:15,527 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:38:23,710 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:38:31,889 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:38:43,743 WARN L293 SmtUtils]: Spent 8.17s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:38:51,014 WARN L293 SmtUtils]: Spent 7.27s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:38:59,274 WARN L293 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:39:07,456 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:39:15,566 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:39:19,623 WARN L854 $PredicateComparison]: unable to prove that (and (let ((.cse0 (bvadd (bvneg ((_ sign_extend 16) c_~var_1_9~0)) c_~var_1_23~0)) (.cse2 ((_ zero_extend 24) c_~var_1_10~0))) (let ((.cse1 (bvult .cse0 .cse2))) (or (and (= c_~var_1_22~0 .cse0) .cse1) (and (= c_~var_1_22~0 .cse2) (not .cse1))))) (bvsle ((_ zero_extend 24) c_~var_1_21~0) (_ bv0 32)) (= (bvadd c_~var_1_1~0 (_ bv8 16)) (_ bv0 16)) (fp.lt (fp.mul c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_2~0 c_~var_1_3~0) c_~var_1_4~0) c_~var_1_5~0) (= c_~var_1_12~0 c_~var_1_10~0) (= c_~var_1_19~0 (_ bv0 8)) (= c_~var_1_18~0 c_~var_1_14~0) (= c_~var_1_9~0 ((_ extract 15 0) (bvadd ((_ zero_extend 24) c_~last_1_var_1_10~0) (_ bv4294967040 32))))) is different from false [2023-12-23 12:39:23,678 WARN L876 $PredicateComparison]: unable to prove that (and (let ((.cse0 (bvadd (bvneg ((_ sign_extend 16) c_~var_1_9~0)) c_~var_1_23~0)) (.cse2 ((_ zero_extend 24) c_~var_1_10~0))) (let ((.cse1 (bvult .cse0 .cse2))) (or (and (= c_~var_1_22~0 .cse0) .cse1) (and (= c_~var_1_22~0 .cse2) (not .cse1))))) (bvsle ((_ zero_extend 24) c_~var_1_21~0) (_ bv0 32)) (= (bvadd c_~var_1_1~0 (_ bv8 16)) (_ bv0 16)) (fp.lt (fp.mul c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_2~0 c_~var_1_3~0) c_~var_1_4~0) c_~var_1_5~0) (= c_~var_1_12~0 c_~var_1_10~0) (= c_~var_1_19~0 (_ bv0 8)) (= c_~var_1_18~0 c_~var_1_14~0) (= c_~var_1_9~0 ((_ extract 15 0) (bvadd ((_ zero_extend 24) c_~last_1_var_1_10~0) (_ bv4294967040 32))))) is different from true Received shutdown request... [2023-12-23 12:40:53,077 WARN L340 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 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 12:40:53,090 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 12:40:54,232 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 (7)] Forceful destruction successful, exit code 0 [2023-12-23 12:40:54,296 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-23 12:40:54,369 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 137 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown