/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-20.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 14:40:40,099 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 14:40:40,170 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 14:40:40,174 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 14:40:40,174 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 14:40:40,197 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 14:40:40,197 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 14:40:40,197 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 14:40:40,198 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 14:40:40,201 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 14:40:40,201 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 14:40:40,202 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 14:40:40,202 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 14:40:40,203 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 14:40:40,203 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 14:40:40,203 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 14:40:40,204 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 14:40:40,204 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 14:40:40,204 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 14:40:40,205 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 14:40:40,205 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 14:40:40,205 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 14:40:40,205 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 14:40:40,205 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 14:40:40,206 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 14:40:40,206 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 14:40:40,206 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 14:40:40,206 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 14:40:40,206 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 14:40:40,206 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 14:40:40,207 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 14:40:40,207 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 14:40:40,207 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 14:40:40,207 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 14:40:40,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:40:40,208 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 14:40:40,208 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 14:40:40,208 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 14:40:40,208 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 14:40:40,208 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 14:40:40,208 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 14:40:40,208 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 14:40:40,208 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 14:40:40,209 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 14:40:40,209 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 14:40:40,209 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 14:40:40,209 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 14:40:40,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 14:40:40,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 14:40:40,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 14:40:40,432 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 14:40:40,432 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 14:40:40,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-20.i [2023-12-16 14:40:41,517 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 14:40:41,754 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 14:40:41,755 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-20.i [2023-12-16 14:40:41,764 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e27133ed/02d74690a6884c4ba001d63661e8fb0e/FLAGf6a269ba5 [2023-12-16 14:40:41,776 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e27133ed/02d74690a6884c4ba001d63661e8fb0e [2023-12-16 14:40:41,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 14:40:41,779 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 14:40:41,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 14:40:41,781 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 14:40:41,784 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 14:40:41,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:40:41" (1/1) ... [2023-12-16 14:40:41,785 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cf4bc36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:40:41, skipping insertion in model container [2023-12-16 14:40:41,785 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:40:41" (1/1) ... [2023-12-16 14:40:41,829 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 14:40:41,950 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-20.i[916,929] [2023-12-16 14:40:42,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:40:42,108 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 14:40:42,123 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-20.i[916,929] [2023-12-16 14:40:42,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:40:42,234 INFO L206 MainTranslator]: Completed translation [2023-12-16 14:40:42,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:40:42 WrapperNode [2023-12-16 14:40:42,235 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 14:40:42,237 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 14:40:42,237 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 14:40:42,237 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 14:40:42,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:40:42" (1/1) ... [2023-12-16 14:40:42,269 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:40:42" (1/1) ... [2023-12-16 14:40:42,306 INFO L138 Inliner]: procedures = 27, calls = 62, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 360 [2023-12-16 14:40:42,307 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 14:40:42,307 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 14:40:42,307 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 14:40:42,307 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 14:40:42,316 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:40:42" (1/1) ... [2023-12-16 14:40:42,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:40:42" (1/1) ... [2023-12-16 14:40:42,356 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:40:42" (1/1) ... [2023-12-16 14:40:42,424 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]. [2023-12-16 14:40:42,424 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:40:42" (1/1) ... [2023-12-16 14:40:42,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:40:42" (1/1) ... [2023-12-16 14:40:42,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:40:42" (1/1) ... [2023-12-16 14:40:42,447 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:40:42" (1/1) ... [2023-12-16 14:40:42,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:40:42" (1/1) ... [2023-12-16 14:40:42,469 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:40:42" (1/1) ... [2023-12-16 14:40:42,473 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 14:40:42,474 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 14:40:42,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 14:40:42,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 14:40:42,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:40:42" (1/1) ... [2023-12-16 14:40:42,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:40:42,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 14:40:42,500 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) [2023-12-16 14:40:42,520 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 [2023-12-16 14:40:42,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 14:40:42,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 14:40:42,533 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 14:40:42,533 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 14:40:42,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 14:40:42,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 14:40:42,631 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 14:40:42,634 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 14:40:59,157 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 14:40:59,190 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 14:40:59,191 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 14:40:59,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:40:59 BoogieIcfgContainer [2023-12-16 14:40:59,191 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 14:40:59,193 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 14:40:59,193 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 14:40:59,195 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 14:40:59,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:40:41" (1/3) ... [2023-12-16 14:40:59,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6f8285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:40:59, skipping insertion in model container [2023-12-16 14:40:59,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:40:42" (2/3) ... [2023-12-16 14:40:59,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6f8285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:40:59, skipping insertion in model container [2023-12-16 14:40:59,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:40:59" (3/3) ... [2023-12-16 14:40:59,197 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-20.i [2023-12-16 14:40:59,208 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 14:40:59,209 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 14:40:59,239 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 14:40:59,243 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;@57fd1b08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 14:40:59,243 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 14:40:59,247 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 97 states have (on average 1.5154639175257731) internal successors, (147), 98 states have internal predecessors, (147), 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) [2023-12-16 14:40:59,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2023-12-16 14:40:59,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:40:59,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:40:59,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:40:59,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:40:59,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1119357404, now seen corresponding path program 1 times [2023-12-16 14:40:59,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:40:59,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332363969] [2023-12-16 14:40:59,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:40:59,274 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 [2023-12-16 14:40:59,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:40:59,276 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) [2023-12-16 14:40:59,292 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 [2023-12-16 14:41:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:41:00,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 14:41:00,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:41:00,511 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 2396 proven. 0 refuted. 0 times theorem prover too weak. 2308 trivial. 0 not checked. [2023-12-16 14:41:00,512 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:41:00,512 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:41:00,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332363969] [2023-12-16 14:41:00,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332363969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:41:00,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:41:00,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 14:41:00,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943163073] [2023-12-16 14:41:00,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:41:00,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 14:41:00,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:41:00,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 14:41:00,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:41:00,547 INFO L87 Difference]: Start difference. First operand has 149 states, 97 states have (on average 1.5154639175257731) internal successors, (147), 98 states have internal predecessors, (147), 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 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-12-16 14:41:05,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:41:05,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:41:05,042 INFO L93 Difference]: Finished difference Result 294 states and 535 transitions. [2023-12-16 14:41:05,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 14:41:05,203 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 314 [2023-12-16 14:41:05,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:41:05,210 INFO L225 Difference]: With dead ends: 294 [2023-12-16 14:41:05,210 INFO L226 Difference]: Without dead ends: 146 [2023-12-16 14:41:05,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:41:05,225 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-16 14:41:05,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2023-12-16 14:41:05,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-12-16 14:41:05,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2023-12-16 14:41:05,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 95 states have (on average 1.4631578947368422) internal successors, (139), 95 states have internal predecessors, (139), 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) [2023-12-16 14:41:05,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 237 transitions. [2023-12-16 14:41:05,264 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 237 transitions. Word has length 314 [2023-12-16 14:41:05,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:41:05,265 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 237 transitions. [2023-12-16 14:41:05,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-12-16 14:41:05,265 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 237 transitions. [2023-12-16 14:41:05,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2023-12-16 14:41:05,275 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:41:05,275 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:41:05,310 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 [2023-12-16 14:41:05,476 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 [2023-12-16 14:41:05,476 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:41:05,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:41:05,477 INFO L85 PathProgramCache]: Analyzing trace with hash -962524374, now seen corresponding path program 1 times [2023-12-16 14:41:05,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:41:05,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691327815] [2023-12-16 14:41:05,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:41:05,479 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 [2023-12-16 14:41:05,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:41:05,483 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) [2023-12-16 14:41:05,488 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 [2023-12-16 14:41:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:41:06,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 14:41:06,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:41:06,937 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2023-12-16 14:41:06,937 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:41:06,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:41:06,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691327815] [2023-12-16 14:41:06,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1691327815] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:41:06,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:41:06,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 14:41:06,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103718752] [2023-12-16 14:41:06,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:41:06,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 14:41:06,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:41:06,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 14:41:06,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 14:41:06,941 INFO L87 Difference]: Start difference. First operand 146 states and 237 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2023-12-16 14:41:11,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:41:15,558 WARN L539 Checker$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 [] [2023-12-16 14:41:19,568 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 [] [2023-12-16 14:41:19,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:41:19,805 INFO L93 Difference]: Finished difference Result 356 states and 578 transitions. [2023-12-16 14:41:19,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 14:41:19,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 314 [2023-12-16 14:41:19,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:41:19,809 INFO L225 Difference]: With dead ends: 356 [2023-12-16 14:41:19,809 INFO L226 Difference]: Without dead ends: 211 [2023-12-16 14:41:19,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 14:41:19,812 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 91 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2023-12-16 14:41:19,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 536 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 17 Invalid, 3 Unknown, 0 Unchecked, 12.8s Time] [2023-12-16 14:41:19,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-12-16 14:41:19,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 208. [2023-12-16 14:41:19,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 154 states have (on average 1.525974025974026) internal successors, (235), 155 states have internal predecessors, (235), 51 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2023-12-16 14:41:19,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 337 transitions. [2023-12-16 14:41:19,887 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 337 transitions. Word has length 314 [2023-12-16 14:41:19,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:41:19,888 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 337 transitions. [2023-12-16 14:41:19,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2023-12-16 14:41:19,889 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 337 transitions. [2023-12-16 14:41:19,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2023-12-16 14:41:19,893 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:41:19,894 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:41:19,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 14:41:20,108 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 [2023-12-16 14:41:20,109 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:41:20,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:41:20,109 INFO L85 PathProgramCache]: Analyzing trace with hash -302992852, now seen corresponding path program 1 times [2023-12-16 14:41:20,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:41:20,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353424750] [2023-12-16 14:41:20,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:41:20,110 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 [2023-12-16 14:41:20,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:41:20,113 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) [2023-12-16 14:41:20,124 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 [2023-12-16 14:41:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:41:21,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 14:41:21,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:41:27,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 2421 proven. 144 refuted. 0 times theorem prover too weak. 2139 trivial. 0 not checked. [2023-12-16 14:41:27,275 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:41:27,724 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:41:27,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353424750] [2023-12-16 14:41:27,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353424750] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 14:41:27,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1079468253] [2023-12-16 14:41:27,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:41:27,733 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 14:41:27,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 14:41:27,790 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 14:41:27,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-16 14:41:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:41:30,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 14:41:30,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:41:40,222 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2023-12-16 14:41:40,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:41:40,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1079468253] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:41:40,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 14:41:40,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2023-12-16 14:41:40,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909905973] [2023-12-16 14:41:40,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:41:40,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 14:41:40,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:41:40,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 14:41:40,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 14:41:40,225 INFO L87 Difference]: Start difference. First operand 208 states and 337 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2023-12-16 14:41:45,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:41:50,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:41:54,016 WARN L539 Checker$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 [] [2023-12-16 14:41:58,025 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 [] Received shutdown request... [2023-12-16 14:41:58,609 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:41:58,610 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 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:41:58,610 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 [2023-12-16 14:41:59,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-16 14:41:59,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 14:41:59,821 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 [2023-12-16 14:41:59,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 656 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-12-16 14:41:59,848 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 137 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2023-12-16 14:41:59,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 490 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 4 Unknown, 0 Unchecked, 17.7s Time] [2023-12-16 14:41:59,850 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 14:41:59,850 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-16 14:41:59,851 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 [2023-12-16 14:41:59,853 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 14:41:59,855 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 14:41:59,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:41:59 BoogieIcfgContainer [2023-12-16 14:41:59,856 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 14:41:59,857 INFO L158 Benchmark]: Toolchain (without parser) took 78077.94ms. Allocated memory is still 299.9MB. Free memory was 248.8MB in the beginning and 180.5MB in the end (delta: 68.3MB). Peak memory consumption was 69.0MB. Max. memory is 8.0GB. [2023-12-16 14:41:59,857 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 219.2MB. Free memory is still 170.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 14:41:59,857 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.45ms. Allocated memory is still 299.9MB. Free memory was 248.5MB in the beginning and 223.6MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-16 14:41:59,858 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.10ms. Allocated memory is still 299.9MB. Free memory was 223.6MB in the beginning and 219.1MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 14:41:59,858 INFO L158 Benchmark]: Boogie Preprocessor took 166.44ms. Allocated memory is still 299.9MB. Free memory was 219.1MB in the beginning and 259.5MB in the end (delta: -40.4MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 14:41:59,858 INFO L158 Benchmark]: RCFGBuilder took 16716.95ms. Allocated memory is still 299.9MB. Free memory was 259.5MB in the beginning and 208.7MB in the end (delta: 50.9MB). Peak memory consumption was 51.4MB. Max. memory is 8.0GB. [2023-12-16 14:41:59,858 INFO L158 Benchmark]: TraceAbstraction took 60663.93ms. Allocated memory is still 299.9MB. Free memory was 208.2MB in the beginning and 180.5MB in the end (delta: 27.7MB). Peak memory consumption was 29.2MB. Max. memory is 8.0GB. [2023-12-16 14:41:59,860 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 219.2MB. Free memory is still 170.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 454.45ms. Allocated memory is still 299.9MB. Free memory was 248.5MB in the beginning and 223.6MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 70.10ms. Allocated memory is still 299.9MB. Free memory was 223.6MB in the beginning and 219.1MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 166.44ms. Allocated memory is still 299.9MB. Free memory was 219.1MB in the beginning and 259.5MB in the end (delta: -40.4MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 16716.95ms. Allocated memory is still 299.9MB. Free memory was 259.5MB in the beginning and 208.7MB in the end (delta: 50.9MB). Peak memory consumption was 51.4MB. Max. memory is 8.0GB. * TraceAbstraction took 60663.93ms. Allocated memory is still 299.9MB. Free memory was 208.2MB in the beginning and 180.5MB in the end (delta: 27.7MB). Peak memory consumption was 29.2MB. 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 executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 149 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 60.6s, OverallIterations: 3, TraceHistogramMax: 49, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 37.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 228 SdHoareTripleChecker+Valid, 35.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 228 mSDsluCounter, 1260 SdHoareTripleChecker+Invalid, 34.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 428 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 150 IncrementalHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 832 mSDtfsCounter, 150 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1292 GetRequests, 1281 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=208occurred in iteration=2, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 6.5s SatisfiabilityAnalysisTime, 15.8s InterpolantComputationTime, 1256 NumberOfCodeBlocks, 1256 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 1252 ConstructedInterpolants, 0 QuantifiedInterpolants, 3966 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2110 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 18672/18816 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