/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-16.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 11:39:06,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 11:39:06,368 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 11:39:06,371 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 11:39:06,372 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 11:39:06,385 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 11:39:06,386 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 11:39:06,386 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 11:39:06,386 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 11:39:06,387 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 11:39:06,387 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 11:39:06,387 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 11:39:06,388 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 11:39:06,388 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 11:39:06,388 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 11:39:06,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 11:39:06,389 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 11:39:06,389 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 11:39:06,389 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 11:39:06,389 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 11:39:06,390 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 11:39:06,390 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 11:39:06,390 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 11:39:06,390 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 11:39:06,391 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 11:39:06,391 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 11:39:06,391 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 11:39:06,391 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 11:39:06,391 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 11:39:06,392 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 11:39:06,392 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 11:39:06,392 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 11:39:06,392 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 11:39:06,393 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 11:39:06,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 11:39:06,393 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 11:39:06,393 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 11:39:06,393 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 11:39:06,394 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 11:39:06,394 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 11:39:06,394 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 11:39:06,394 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 11:39:06,394 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 11:39:06,394 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 11:39:06,395 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 11:39:06,395 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 11:39:06,395 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 11:39:06,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 11:39:06,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 11:39:06,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 11:39:06,604 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 11:39:06,605 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 11:39:06,606 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-16.i [2023-12-23 11:39:07,740 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 11:39:07,936 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 11:39:07,936 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-16.i [2023-12-23 11:39:07,948 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81fc28ab3/11fef9353be04eae84f1edaa78bfe72a/FLAGb7c7728c3 [2023-12-23 11:39:07,962 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81fc28ab3/11fef9353be04eae84f1edaa78bfe72a [2023-12-23 11:39:07,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 11:39:07,966 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 11:39:07,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 11:39:07,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 11:39:07,971 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 11:39:07,972 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:39:07" (1/1) ... [2023-12-23 11:39:07,973 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22ea5234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:39:07, skipping insertion in model container [2023-12-23 11:39:07,973 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:39:07" (1/1) ... [2023-12-23 11:39:08,008 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 11:39:08,112 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-16.i[919,932] [2023-12-23 11:39:08,166 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 11:39:08,178 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 11:39:08,187 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-16.i[919,932] [2023-12-23 11:39:08,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 11:39:08,242 INFO L206 MainTranslator]: Completed translation [2023-12-23 11:39:08,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:39:08 WrapperNode [2023-12-23 11:39:08,243 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 11:39:08,244 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 11:39:08,244 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 11:39:08,244 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 11:39:08,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:39:08" (1/1) ... [2023-12-23 11:39:08,266 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:39:08" (1/1) ... [2023-12-23 11:39:08,293 INFO L138 Inliner]: procedures = 27, calls = 72, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 293 [2023-12-23 11:39:08,293 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 11:39:08,294 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 11:39:08,294 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 11:39:08,294 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 11:39:08,308 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:39:08" (1/1) ... [2023-12-23 11:39:08,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:39:08" (1/1) ... [2023-12-23 11:39:08,313 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:39:08" (1/1) ... [2023-12-23 11:39:08,324 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 11:39:08,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:39:08" (1/1) ... [2023-12-23 11:39:08,328 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:39:08" (1/1) ... [2023-12-23 11:39:08,349 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:39:08" (1/1) ... [2023-12-23 11:39:08,358 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:39:08" (1/1) ... [2023-12-23 11:39:08,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:39:08" (1/1) ... [2023-12-23 11:39:08,363 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:39:08" (1/1) ... [2023-12-23 11:39:08,367 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 11:39:08,367 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 11:39:08,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 11:39:08,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 11:39:08,368 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:39:08" (1/1) ... [2023-12-23 11:39:08,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 11:39:08,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 11:39:08,394 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 11:39:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 11:39:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 11:39:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 11:39:08,414 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 11:39:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 11:39:08,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 11:39:08,419 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 11:39:08,525 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 11:39:08,528 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 11:39:18,431 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 11:39:18,484 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 11:39:18,484 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 11:39:18,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:39:18 BoogieIcfgContainer [2023-12-23 11:39:18,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 11:39:18,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 11:39:18,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 11:39:18,489 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 11:39:18,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:39:07" (1/3) ... [2023-12-23 11:39:18,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a372c63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:39:18, skipping insertion in model container [2023-12-23 11:39:18,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:39:08" (2/3) ... [2023-12-23 11:39:18,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a372c63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:39:18, skipping insertion in model container [2023-12-23 11:39:18,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:39:18" (3/3) ... [2023-12-23 11:39:18,490 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-16.i [2023-12-23 11:39:18,503 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 11:39:18,503 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 11:39:18,547 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 11:39:18,559 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;@46fb8e1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 11:39:18,559 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 11:39:18,563 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 66 states have (on average 1.3484848484848484) internal successors, (89), 67 states have internal predecessors, (89), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-23 11:39:18,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2023-12-23 11:39:18,577 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 11:39:18,578 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:18,578 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 11:39:18,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 11:39:18,582 INFO L85 PathProgramCache]: Analyzing trace with hash -505838093, now seen corresponding path program 1 times [2023-12-23 11:39:18,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 11:39:18,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32533536] [2023-12-23 11:39:18,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 11:39:18,593 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 11:39:18,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 11:39:18,595 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 11:39:18,601 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 11:39:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 11:39:19,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 11:39:19,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 11:39:19,163 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 2324 proven. 0 refuted. 0 times theorem prover too weak. 4520 trivial. 0 not checked. [2023-12-23 11:39:19,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 11:39:19,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 11:39:19,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32533536] [2023-12-23 11:39:19,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32533536] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 11:39:19,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 11:39:19,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 11:39:19,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195944944] [2023-12-23 11:39:19,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 11:39:19,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 11:39:19,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 11:39:19,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 11:39:19,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 11:39:19,194 INFO L87 Difference]: Start difference. First operand has 128 states, 66 states have (on average 1.3484848484848484) internal successors, (89), 67 states have internal predecessors, (89), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2023-12-23 11:39:20,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:39:20,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 11:39:20,486 INFO L93 Difference]: Finished difference Result 253 states and 471 transitions. [2023-12-23 11:39:20,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 11:39:20,513 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 350 [2023-12-23 11:39:20,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 11:39:20,519 INFO L225 Difference]: With dead ends: 253 [2023-12-23 11:39:20,519 INFO L226 Difference]: Without dead ends: 126 [2023-12-23 11:39:20,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 349 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 11:39:20,524 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-23 11:39:20,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 199 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-23 11:39:20,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-12-23 11:39:20,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2023-12-23 11:39:20,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 65 states have (on average 1.2923076923076924) internal successors, (84), 65 states have internal predecessors, (84), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-23 11:39:20,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 202 transitions. [2023-12-23 11:39:20,563 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 202 transitions. Word has length 350 [2023-12-23 11:39:20,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 11:39:20,563 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 202 transitions. [2023-12-23 11:39:20,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2023-12-23 11:39:20,563 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 202 transitions. [2023-12-23 11:39:20,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2023-12-23 11:39:20,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 11:39:20,569 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:20,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-23 11:39:20,788 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 11:39:20,788 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 11:39:20,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 11:39:20,789 INFO L85 PathProgramCache]: Analyzing trace with hash -742884999, now seen corresponding path program 1 times [2023-12-23 11:39:20,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 11:39:20,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813414517] [2023-12-23 11:39:20,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 11:39:20,790 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 11:39:20,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 11:39:20,792 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 11:39:20,793 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 11:39:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 11:39:21,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 11:39:21,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 11:39:28,757 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2023-12-23 11:39:28,758 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 11:39:28,758 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 11:39:28,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813414517] [2023-12-23 11:39:28,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813414517] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 11:39:28,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 11:39:28,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 11:39:28,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116341422] [2023-12-23 11:39:28,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 11:39:28,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 11:39:28,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 11:39:28,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 11:39:28,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 11:39:28,761 INFO L87 Difference]: Start difference. First operand 126 states and 202 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-23 11:39:33,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:39:38,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:39:39,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 11:39:39,971 INFO L93 Difference]: Finished difference Result 369 states and 595 transitions. [2023-12-23 11:39:39,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 11:39:39,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 350 [2023-12-23 11:39:39,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 11:39:39,986 INFO L225 Difference]: With dead ends: 369 [2023-12-23 11:39:39,987 INFO L226 Difference]: Without dead ends: 244 [2023-12-23 11:39:39,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 11:39:39,989 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 25 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-12-23 11:39:39,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 375 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 2 Unknown, 0 Unchecked, 11.2s Time] [2023-12-23 11:39:39,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-12-23 11:39:40,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 239. [2023-12-23 11:39:40,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 118 states have (on average 1.271186440677966) internal successors, (150), 118 states have internal predecessors, (150), 118 states have call successors, (118), 2 states have call predecessors, (118), 2 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2023-12-23 11:39:40,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 386 transitions. [2023-12-23 11:39:40,025 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 386 transitions. Word has length 350 [2023-12-23 11:39:40,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 11:39:40,028 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 386 transitions. [2023-12-23 11:39:40,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-23 11:39:40,030 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 386 transitions. [2023-12-23 11:39:40,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2023-12-23 11:39:40,036 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 11:39:40,036 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:40,052 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 11:39:40,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 11:39:40,248 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 11:39:40,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 11:39:40,249 INFO L85 PathProgramCache]: Analyzing trace with hash -349857989, now seen corresponding path program 1 times [2023-12-23 11:39:40,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 11:39:40,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126131536] [2023-12-23 11:39:40,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 11:39:40,250 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 11:39:40,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 11:39:40,251 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 11:39:40,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-23 11:39:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 11:39:40,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-23 11:39:40,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 11:41:39,711 WARN L293 SmtUtils]: Spent 9.72s on a formula simplification that was a NOOP. DAG size: 107 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)