/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_fillercodesize_ps-cn-250_file-35.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 02:19:51,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 02:19:51,165 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 02:19:51,169 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 02:19:51,170 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 02:19:51,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 02:19:51,189 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 02:19:51,189 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 02:19:51,190 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 02:19:51,190 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 02:19:51,190 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 02:19:51,191 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 02:19:51,191 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 02:19:51,192 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 02:19:51,192 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 02:19:51,192 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 02:19:51,193 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 02:19:51,193 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 02:19:51,193 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 02:19:51,194 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 02:19:51,194 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 02:19:51,194 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 02:19:51,195 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 02:19:51,195 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 02:19:51,195 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 02:19:51,196 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 02:19:51,196 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 02:19:51,196 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 02:19:51,197 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 02:19:51,197 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 02:19:51,197 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 02:19:51,197 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 02:19:51,198 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 02:19:51,198 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 02:19:51,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 02:19:51,199 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 02:19:51,199 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 02:19:51,199 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 02:19:51,200 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 02:19:51,200 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 02:19:51,200 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 02:19:51,201 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 02:19:51,201 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 02:19:51,201 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 02:19:51,202 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 02:19:51,202 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 02:19:51,202 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 02:19:51,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 02:19:51,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 02:19:51,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 02:19:51,413 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 02:19:51,414 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 02:19:51,415 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-35.i [2023-12-23 02:19:52,654 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 02:19:52,897 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 02:19:52,898 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-35.i [2023-12-23 02:19:52,921 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68c737ba/62eafb72f88e4a07ad3a7d4eccda3e48/FLAG63565e3eb [2023-12-23 02:19:52,939 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68c737ba/62eafb72f88e4a07ad3a7d4eccda3e48 [2023-12-23 02:19:52,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 02:19:52,943 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 02:19:52,945 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 02:19:52,945 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 02:19:52,950 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 02:19:52,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:19:52" (1/1) ... [2023-12-23 02:19:52,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45897c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:19:52, skipping insertion in model container [2023-12-23 02:19:52,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:19:52" (1/1) ... [2023-12-23 02:19:53,006 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 02:19:53,174 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_fillercodesize_ps-cn-250_file-35.i[916,929] [2023-12-23 02:19:53,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 02:19:53,360 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 02:19:53,375 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_fillercodesize_ps-cn-250_file-35.i[916,929] [2023-12-23 02:19:53,435 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 02:19:53,454 INFO L206 MainTranslator]: Completed translation [2023-12-23 02:19:53,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:19:53 WrapperNode [2023-12-23 02:19:53,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 02:19:53,457 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 02:19:53,457 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 02:19:53,458 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 02:19:53,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:19:53" (1/1) ... [2023-12-23 02:19:53,497 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:19:53" (1/1) ... [2023-12-23 02:19:53,544 INFO L138 Inliner]: procedures = 27, calls = 107, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 493 [2023-12-23 02:19:53,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 02:19:53,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 02:19:53,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 02:19:53,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 02:19:53,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:19:53" (1/1) ... [2023-12-23 02:19:53,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:19:53" (1/1) ... [2023-12-23 02:19:53,563 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:19:53" (1/1) ... [2023-12-23 02:19:53,581 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 02:19:53,581 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:19:53" (1/1) ... [2023-12-23 02:19:53,581 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:19:53" (1/1) ... [2023-12-23 02:19:53,615 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:19:53" (1/1) ... [2023-12-23 02:19:53,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:19:53" (1/1) ... [2023-12-23 02:19:53,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:19:53" (1/1) ... [2023-12-23 02:19:53,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:19:53" (1/1) ... [2023-12-23 02:19:53,634 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 02:19:53,635 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 02:19:53,635 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 02:19:53,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 02:19:53,636 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:19:53" (1/1) ... [2023-12-23 02:19:53,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 02:19:53,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 02:19:53,664 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 02:19:53,676 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 02:19:53,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 02:19:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 02:19:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 02:19:53,697 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 02:19:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 02:19:53,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 02:19:53,856 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 02:19:53,860 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 02:20:10,317 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 02:20:10,419 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 02:20:10,419 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 02:20:10,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:20:10 BoogieIcfgContainer [2023-12-23 02:20:10,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 02:20:10,421 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 02:20:10,421 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 02:20:10,423 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 02:20:10,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 02:19:52" (1/3) ... [2023-12-23 02:20:10,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c27a48e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:20:10, skipping insertion in model container [2023-12-23 02:20:10,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:19:53" (2/3) ... [2023-12-23 02:20:10,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c27a48e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:20:10, skipping insertion in model container [2023-12-23 02:20:10,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:20:10" (3/3) ... [2023-12-23 02:20:10,425 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-35.i [2023-12-23 02:20:10,438 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 02:20:10,439 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 02:20:10,486 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 02:20:10,494 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;@44487f15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 02:20:10,495 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 02:20:10,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 217 states, 120 states have (on average 1.475) internal successors, (177), 121 states have internal predecessors, (177), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-23 02:20:10,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2023-12-23 02:20:10,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:20:10,526 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:20:10,526 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:20:10,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:20:10,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1629113683, now seen corresponding path program 1 times [2023-12-23 02:20:10,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:20:10,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1439566155] [2023-12-23 02:20:10,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:20:10,550 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 02:20:10,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:20:10,556 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 02:20:10,559 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 02:20:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:20:12,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 02:20:12,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:20:12,315 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 4074 proven. 0 refuted. 0 times theorem prover too weak. 13410 trivial. 0 not checked. [2023-12-23 02:20:12,315 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:20:12,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:20:12,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1439566155] [2023-12-23 02:20:12,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1439566155] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:20:12,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 02:20:12,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 02:20:12,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560319825] [2023-12-23 02:20:12,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:20:12,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 02:20:12,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:20:12,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 02:20:12,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 02:20:12,358 INFO L87 Difference]: Start difference. First operand has 217 states, 120 states have (on average 1.475) internal successors, (177), 121 states have internal predecessors, (177), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Second operand has 2 states, 2 states have (on average 51.5) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2023-12-23 02:20:13,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:20:13,490 INFO L93 Difference]: Finished difference Result 430 states and 820 transitions. [2023-12-23 02:20:13,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 02:20:13,519 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 51.5) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) Word has length 566 [2023-12-23 02:20:13,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:20:13,528 INFO L225 Difference]: With dead ends: 430 [2023-12-23 02:20:13,528 INFO L226 Difference]: Without dead ends: 214 [2023-12-23 02:20:13,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 565 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 02:20:13,537 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-23 02:20:13,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 353 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-23 02:20:13,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-12-23 02:20:13,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2023-12-23 02:20:13,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 118 states have (on average 1.423728813559322) internal successors, (168), 118 states have internal predecessors, (168), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-23 02:20:13,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 356 transitions. [2023-12-23 02:20:13,625 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 356 transitions. Word has length 566 [2023-12-23 02:20:13,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:20:13,626 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 356 transitions. [2023-12-23 02:20:13,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 51.5) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2023-12-23 02:20:13,627 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 356 transitions. [2023-12-23 02:20:13,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2023-12-23 02:20:13,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:20:13,640 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:20:13,683 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 [2023-12-23 02:20:13,856 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 02:20:13,857 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:20:13,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:20:13,858 INFO L85 PathProgramCache]: Analyzing trace with hash 570900915, now seen corresponding path program 1 times [2023-12-23 02:20:13,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:20:13,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930840994] [2023-12-23 02:20:13,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:20:13,860 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:20:13,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:20:13,861 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 02:20:13,888 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 02:20:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:20:15,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-23 02:20:15,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:20:32,900 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 8787 proven. 483 refuted. 0 times theorem prover too weak. 8214 trivial. 0 not checked. [2023-12-23 02:20:32,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 02:20:35,140 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:20:35,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930840994] [2023-12-23 02:20:35,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930840994] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 02:20:35,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [903393186] [2023-12-23 02:20:35,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:20:35,144 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 02:20:35,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 02:20:35,178 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 02:20:35,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-23 02:20:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:20:36,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 02:20:36,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:20:45,971 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2023-12-23 02:20:45,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:20:45,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [903393186] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:20:45,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 02:20:45,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 13 [2023-12-23 02:20:45,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689612065] [2023-12-23 02:20:45,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:20:45,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 02:20:45,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:20:45,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 02:20:45,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2023-12-23 02:20:45,977 INFO L87 Difference]: Start difference. First operand 214 states and 356 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2023-12-23 02:20:48,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:20:50,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:20:50,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:20:50,084 INFO L93 Difference]: Finished difference Result 658 states and 1092 transitions. [2023-12-23 02:20:50,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 02:20:50,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 566 [2023-12-23 02:20:50,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:20:50,120 INFO L225 Difference]: With dead ends: 658 [2023-12-23 02:20:50,121 INFO L226 Difference]: Without dead ends: 445 [2023-12-23 02:20:50,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1468 GetRequests, 1454 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-12-23 02:20:50,123 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 262 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-23 02:20:50,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 1078 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-23 02:20:50,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2023-12-23 02:20:50,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 425. [2023-12-23 02:20:50,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 234 states have (on average 1.4230769230769231) internal successors, (333), 234 states have internal predecessors, (333), 188 states have call successors, (188), 2 states have call predecessors, (188), 2 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2023-12-23 02:20:50,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 709 transitions. [2023-12-23 02:20:50,217 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 709 transitions. Word has length 566 [2023-12-23 02:20:50,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:20:50,219 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 709 transitions. [2023-12-23 02:20:50,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2023-12-23 02:20:50,219 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 709 transitions. [2023-12-23 02:20:50,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2023-12-23 02:20:50,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:20:50,226 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:20:50,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-23 02:20:50,466 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 02:20:50,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 02:20:50,636 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:20:50,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:20:50,637 INFO L85 PathProgramCache]: Analyzing trace with hash -440216335, now seen corresponding path program 1 times [2023-12-23 02:20:50,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:20:50,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239137748] [2023-12-23 02:20:50,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:20:50,639 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 02:20:50,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:20:50,640 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 02:20:50,641 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 02:20:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:20:52,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-23 02:20:52,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:21:09,508 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 8787 proven. 483 refuted. 0 times theorem prover too weak. 8214 trivial. 0 not checked. [2023-12-23 02:21:09,508 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 02:21:11,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:21:11,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239137748] [2023-12-23 02:21:11,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239137748] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 02:21:11,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1297313499] [2023-12-23 02:21:11,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:21:11,662 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 02:21:11,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 02:21:11,665 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 02:21:11,690 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 02:21:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:21:15,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 02:21:15,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:21:24,744 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2023-12-23 02:21:24,745 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:21:24,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1297313499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:21:24,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 02:21:24,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 14 [2023-12-23 02:21:24,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86414822] [2023-12-23 02:21:24,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:21:24,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 02:21:24,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:21:24,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 02:21:24,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-12-23 02:21:24,748 INFO L87 Difference]: Start difference. First operand 425 states and 709 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2023-12-23 02:21:28,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:21:30,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:21:30,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:21:30,768 INFO L93 Difference]: Finished difference Result 1295 states and 2156 transitions. [2023-12-23 02:21:30,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 02:21:30,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 566 [2023-12-23 02:21:30,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:21:30,802 INFO L225 Difference]: With dead ends: 1295 [2023-12-23 02:21:30,802 INFO L226 Difference]: Without dead ends: 871 [2023-12-23 02:21:30,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1469 GetRequests, 1453 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2023-12-23 02:21:30,806 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 260 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-12-23 02:21:30,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1210 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-12-23 02:21:30,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2023-12-23 02:21:30,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 847. [2023-12-23 02:21:30,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 466 states have (on average 1.4206008583690988) internal successors, (662), 466 states have internal predecessors, (662), 376 states have call successors, (376), 4 states have call predecessors, (376), 4 states have return successors, (376), 376 states have call predecessors, (376), 376 states have call successors, (376) [2023-12-23 02:21:30,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1414 transitions. [2023-12-23 02:21:30,945 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1414 transitions. Word has length 566 [2023-12-23 02:21:30,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:21:30,947 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1414 transitions. [2023-12-23 02:21:30,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2023-12-23 02:21:30,948 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1414 transitions. [2023-12-23 02:21:30,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2023-12-23 02:21:30,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:21:30,952 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:21:30,998 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 02:21:31,183 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 02:21:31,366 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 02:21:31,367 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:21:31,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:21:31,367 INFO L85 PathProgramCache]: Analyzing trace with hash -431189128, now seen corresponding path program 1 times [2023-12-23 02:21:31,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:21:31,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798705977] [2023-12-23 02:21:31,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:21:31,368 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 02:21:31,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:21:31,370 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 02:21:31,371 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 02:21:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:21:32,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-23 02:21:32,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:21:49,782 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 8787 proven. 483 refuted. 0 times theorem prover too weak. 8214 trivial. 0 not checked. [2023-12-23 02:21:49,782 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 02:21:51,845 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:21:51,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798705977] [2023-12-23 02:21:51,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798705977] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 02:21:51,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1045227076] [2023-12-23 02:21:51,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:21:51,846 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 02:21:51,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 02:21:51,847 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 02:21:51,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-23 02:21:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:21:54,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 02:21:54,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:21:55,852 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2023-12-23 02:21:55,852 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:21:55,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1045227076] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:21:55,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 02:21:55,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2023-12-23 02:21:55,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022776096] [2023-12-23 02:21:55,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:21:55,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-23 02:21:55,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:21:55,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-23 02:21:55,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2023-12-23 02:21:55,855 INFO L87 Difference]: Start difference. First operand 847 states and 1414 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2023-12-23 02:21:59,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:22:01,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:22:02,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:22:08,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:22:08,704 INFO L93 Difference]: Finished difference Result 1958 states and 3255 transitions. [2023-12-23 02:22:08,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-23 02:22:08,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 567 [2023-12-23 02:22:08,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:22:08,729 INFO L225 Difference]: With dead ends: 1958 [2023-12-23 02:22:08,730 INFO L226 Difference]: Without dead ends: 1745 [2023-12-23 02:22:08,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1472 GetRequests, 1455 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2023-12-23 02:22:08,735 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 431 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2023-12-23 02:22:08,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 1470 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2023-12-23 02:22:08,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2023-12-23 02:22:08,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 903. [2023-12-23 02:22:08,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 506 states have (on average 1.4110671936758894) internal successors, (714), 508 states have internal predecessors, (714), 390 states have call successors, (390), 6 states have call predecessors, (390), 6 states have return successors, (390), 388 states have call predecessors, (390), 390 states have call successors, (390) [2023-12-23 02:22:08,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1494 transitions. [2023-12-23 02:22:08,939 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1494 transitions. Word has length 567 [2023-12-23 02:22:08,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:22:08,941 INFO L495 AbstractCegarLoop]: Abstraction has 903 states and 1494 transitions. [2023-12-23 02:22:08,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2023-12-23 02:22:08,942 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1494 transitions. [2023-12-23 02:22:08,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2023-12-23 02:22:08,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:22:08,946 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:22:08,995 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 02:22:09,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-23 02:22:09,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /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=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 02:22:09,366 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:22:09,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:22:09,366 INFO L85 PathProgramCache]: Analyzing trace with hash -373930826, now seen corresponding path program 1 times [2023-12-23 02:22:09,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:22:09,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [469543199] [2023-12-23 02:22:09,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:22:09,367 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 02:22:09,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:22:09,369 INFO L229 MonitoredProcess]: Starting monitored process 9 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 02:22:09,373 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 (9)] Waiting until timeout for monitored process [2023-12-23 02:22:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:22:10,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-23 02:22:10,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:22:26,874 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 8787 proven. 483 refuted. 0 times theorem prover too weak. 8214 trivial. 0 not checked. [2023-12-23 02:22:26,875 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 02:22:28,878 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:22:28,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [469543199] [2023-12-23 02:22:28,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [469543199] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 02:22:28,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1092137620] [2023-12-23 02:22:28,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:22:28,879 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 02:22:28,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 02:22:28,880 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 02:22:28,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-23 02:22:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:22:33,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-23 02:22:33,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:22:49,236 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 8787 proven. 483 refuted. 0 times theorem prover too weak. 8214 trivial. 0 not checked. [2023-12-23 02:22:49,237 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 02:22:50,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1092137620] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 02:22:50,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 02:22:50,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2023-12-23 02:22:50,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236844311] [2023-12-23 02:22:50,979 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 02:22:50,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-23 02:22:50,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:22:50,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-23 02:22:50,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-12-23 02:22:50,982 INFO L87 Difference]: Start difference. First operand 903 states and 1494 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 4 states have call successors, (94), 4 states have call predecessors, (94), 6 states have return successors, (94), 4 states have call predecessors, (94), 4 states have call successors, (94) [2023-12-23 02:23:01,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:23:04,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:23:04,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:23:04,276 INFO L93 Difference]: Finished difference Result 1873 states and 3043 transitions. [2023-12-23 02:23:04,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-23 02:23:04,311 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 4 states have call successors, (94), 4 states have call predecessors, (94), 6 states have return successors, (94), 4 states have call predecessors, (94), 4 states have call successors, (94) Word has length 567 [2023-12-23 02:23:04,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:23:04,320 INFO L225 Difference]: With dead ends: 1873 [2023-12-23 02:23:04,320 INFO L226 Difference]: Without dead ends: 971 [2023-12-23 02:23:04,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1815 GetRequests, 1798 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2023-12-23 02:23:04,325 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 178 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-12-23 02:23:04,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 836 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2023-12-23 02:23:04,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2023-12-23 02:23:04,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 951. [2023-12-23 02:23:04,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 542 states have (on average 1.3763837638376384) internal successors, (746), 544 states have internal predecessors, (746), 390 states have call successors, (390), 18 states have call predecessors, (390), 18 states have return successors, (390), 388 states have call predecessors, (390), 390 states have call successors, (390) [2023-12-23 02:23:04,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1526 transitions. [2023-12-23 02:23:04,511 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1526 transitions. Word has length 567 [2023-12-23 02:23:04,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:23:04,512 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1526 transitions. [2023-12-23 02:23:04,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 4 states have call successors, (94), 4 states have call predecessors, (94), 6 states have return successors, (94), 4 states have call predecessors, (94), 4 states have call successors, (94) [2023-12-23 02:23:04,513 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1526 transitions. [2023-12-23 02:23:04,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2023-12-23 02:23:04,517 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:23:04,517 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:23:04,569 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 (9)] Forceful destruction successful, exit code 0 [2023-12-23 02:23:04,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-12-23 02:23:04,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /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=3,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 02:23:04,945 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:23:04,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:23:04,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1033462348, now seen corresponding path program 1 times [2023-12-23 02:23:04,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:23:04,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138451016] [2023-12-23 02:23:04,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:23:04,946 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 02:23:04,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:23:04,948 INFO L229 MonitoredProcess]: Starting monitored process 11 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 02:23:04,954 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 (11)] Waiting until timeout for monitored process [2023-12-23 02:23:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:23:07,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-23 02:23:07,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:32:50,269 WARN L293 SmtUtils]: Spent 11.94s on a formula simplification that was a NOOP. DAG size: 104 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-12-23 02:34:14,583 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 02:34:14,583 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 (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 02:34:15,065 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 02:34:15,105 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 (11)] Forceful destruction successful, exit code 0 [2023-12-23 02:34:15,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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 02:34:15,266 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 568 with TraceHistMax 94,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-16-2-2-1 term,while SimplifyDDA2 was simplifying 16 xjuncts wrt. a ATOM-1 context. [2023-12-23 02:34:15,271 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-23 02:34:15,273 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 02:34:15,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 02:34:15 BoogieIcfgContainer [2023-12-23 02:34:15,275 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 02:34:15,276 INFO L158 Benchmark]: Toolchain (without parser) took 862332.49ms. Allocated memory was 294.6MB in the beginning and 354.4MB in the end (delta: 59.8MB). Free memory was 240.4MB in the beginning and 183.5MB in the end (delta: 56.9MB). Peak memory consumption was 117.2MB. Max. memory is 8.0GB. [2023-12-23 02:34:15,276 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 188.7MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 02:34:15,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 510.82ms. Allocated memory is still 294.6MB. Free memory was 240.4MB in the beginning and 216.3MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-23 02:34:15,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.89ms. Allocated memory is still 294.6MB. Free memory was 216.3MB in the beginning and 211.6MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 02:34:15,277 INFO L158 Benchmark]: Boogie Preprocessor took 89.32ms. Allocated memory is still 294.6MB. Free memory was 211.6MB in the beginning and 205.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-23 02:34:15,277 INFO L158 Benchmark]: RCFGBuilder took 16784.63ms. Allocated memory is still 294.6MB. Free memory was 205.3MB in the beginning and 252.8MB in the end (delta: -47.5MB). Peak memory consumption was 56.8MB. Max. memory is 8.0GB. [2023-12-23 02:34:15,278 INFO L158 Benchmark]: TraceAbstraction took 844854.25ms. Allocated memory was 294.6MB in the beginning and 354.4MB in the end (delta: 59.8MB). Free memory was 252.3MB in the beginning and 183.5MB in the end (delta: 68.9MB). Peak memory consumption was 128.6MB. Max. memory is 8.0GB. [2023-12-23 02:34:15,285 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 188.7MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 510.82ms. Allocated memory is still 294.6MB. Free memory was 240.4MB in the beginning and 216.3MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 86.89ms. Allocated memory is still 294.6MB. Free memory was 216.3MB in the beginning and 211.6MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 89.32ms. Allocated memory is still 294.6MB. Free memory was 211.6MB in the beginning and 205.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 16784.63ms. Allocated memory is still 294.6MB. Free memory was 205.3MB in the beginning and 252.8MB in the end (delta: -47.5MB). Peak memory consumption was 56.8MB. Max. memory is 8.0GB. * TraceAbstraction took 844854.25ms. Allocated memory was 294.6MB in the beginning and 354.4MB in the end (delta: 59.8MB). Free memory was 252.3MB in the beginning and 183.5MB in the end (delta: 68.9MB). Peak memory consumption was 128.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 568 with TraceHistMax 94,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-16-2-2-1 term,while SimplifyDDA2 was simplifying 16 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 217 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 844.8s, OverallIterations: 6, TraceHistogramMax: 94, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 37.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1168 SdHoareTripleChecker+Valid, 35.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1131 mSDsluCounter, 4947 SdHoareTripleChecker+Invalid, 34.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2952 mSDsCounter, 466 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1748 IncrementalHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 466 mSolverCounterUnsat, 1995 mSDtfsCounter, 1748 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6789 GetRequests, 6725 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=951occurred in iteration=5, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 906 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 18.9s SatisfiabilityAnalysisTime, 114.0s InterpolantComputationTime, 5098 NumberOfCodeBlocks, 5098 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 5089 ConstructedInterpolants, 0 QuantifiedInterpolants, 26077 SizeOfPredicates, 32 NumberOfNonLiveVariables, 8021 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 154941/157356 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown