/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-ps-cn_file-14.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 12:44:51,086 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 12:44:51,126 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 12:44:51,137 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 12:44:51,138 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 12:44:51,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 12:44:51,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 12:44:51,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 12:44:51,159 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 12:44:51,159 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 12:44:51,159 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 12:44:51,159 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 12:44:51,163 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 12:44:51,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 12:44:51,166 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 12:44:51,167 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 12:44:51,167 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 12:44:51,168 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 12:44:51,168 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 12:44:51,169 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 12:44:51,169 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 12:44:51,169 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 12:44:51,169 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 12:44:51,169 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 12:44:51,170 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 12:44:51,170 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 12:44:51,170 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 12:44:51,170 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 12:44:51,170 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 12:44:51,170 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 12:44:51,171 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 12:44:51,171 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 12:44:51,171 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 12:44:51,171 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 12:44:51,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:44:51,172 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 12:44:51,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 12:44:51,172 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 12:44:51,172 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 12:44:51,172 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 12:44:51,172 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 12:44:51,173 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 12:44:51,173 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 12:44:51,173 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 12:44:51,173 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 12:44:51,173 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 12:44:51,173 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 12:44:51,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 12:44:51,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 12:44:51,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 12:44:51,415 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 12:44:51,416 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 12:44:51,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-14.i [2023-12-16 12:44:52,565 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 12:44:52,728 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 12:44:52,728 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-14.i [2023-12-16 12:44:52,739 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97165ac02/5c303167e5ee4a089e1a7cc79cc7dfdc/FLAG2522b6e51 [2023-12-16 12:44:52,749 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97165ac02/5c303167e5ee4a089e1a7cc79cc7dfdc [2023-12-16 12:44:52,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 12:44:52,752 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 12:44:52,753 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 12:44:52,753 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 12:44:52,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 12:44:52,756 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:44:52" (1/1) ... [2023-12-16 12:44:52,757 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e57d5b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:44:52, skipping insertion in model container [2023-12-16 12:44:52,757 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:44:52" (1/1) ... [2023-12-16 12:44:52,778 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 12:44:52,884 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-ps-cn_file-14.i[919,932] [2023-12-16 12:44:52,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:44:52,961 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 12:44:52,971 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-ps-cn_file-14.i[919,932] [2023-12-16 12:44:53,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:44:53,026 INFO L206 MainTranslator]: Completed translation [2023-12-16 12:44:53,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:44:53 WrapperNode [2023-12-16 12:44:53,027 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 12:44:53,028 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 12:44:53,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 12:44:53,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 12:44:53,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:44:53" (1/1) ... [2023-12-16 12:44:53,051 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:44:53" (1/1) ... [2023-12-16 12:44:53,075 INFO L138 Inliner]: procedures = 27, calls = 58, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 244 [2023-12-16 12:44:53,075 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 12:44:53,076 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 12:44:53,076 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 12:44:53,076 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 12:44:53,084 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:44:53" (1/1) ... [2023-12-16 12:44:53,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:44:53" (1/1) ... [2023-12-16 12:44:53,087 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:44:53" (1/1) ... [2023-12-16 12:44:53,098 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 12:44:53,098 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:44:53" (1/1) ... [2023-12-16 12:44:53,098 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:44:53" (1/1) ... [2023-12-16 12:44:53,111 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:44:53" (1/1) ... [2023-12-16 12:44:53,113 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:44:53" (1/1) ... [2023-12-16 12:44:53,115 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:44:53" (1/1) ... [2023-12-16 12:44:53,116 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:44:53" (1/1) ... [2023-12-16 12:44:53,119 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 12:44:53,120 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 12:44:53,120 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 12:44:53,136 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 12:44:53,137 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:44:53" (1/1) ... [2023-12-16 12:44:53,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:44:53,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 12:44:53,185 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 12:44:53,202 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 12:44:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 12:44:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 12:44:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 12:44:53,220 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 12:44:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 12:44:53,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 12:44:53,290 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 12:44:53,292 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 12:45:22,907 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 12:45:23,002 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 12:45:23,003 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 12:45:23,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:45:23 BoogieIcfgContainer [2023-12-16 12:45:23,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 12:45:23,005 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 12:45:23,005 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 12:45:23,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 12:45:23,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:44:52" (1/3) ... [2023-12-16 12:45:23,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3706302e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:45:23, skipping insertion in model container [2023-12-16 12:45:23,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:44:53" (2/3) ... [2023-12-16 12:45:23,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3706302e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:45:23, skipping insertion in model container [2023-12-16 12:45:23,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:45:23" (3/3) ... [2023-12-16 12:45:23,028 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-14.i [2023-12-16 12:45:23,040 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 12:45:23,041 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 12:45:23,085 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 12:45:23,090 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;@3159304a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 12:45:23,090 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 12:45:23,093 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 57 states have (on average 1.4210526315789473) internal successors, (81), 58 states have internal predecessors, (81), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-16 12:45:23,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-12-16 12:45:23,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:45:23,111 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:45:23,111 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:45:23,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:45:23,116 INFO L85 PathProgramCache]: Analyzing trace with hash -588371647, now seen corresponding path program 1 times [2023-12-16 12:45:23,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:45:23,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [125753610] [2023-12-16 12:45:23,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:45:23,127 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 12:45:23,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:45:23,129 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 12:45:23,135 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 12:45:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:45:23,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 12:45:23,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:45:23,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 580 proven. 0 refuted. 0 times theorem prover too weak. 3380 trivial. 0 not checked. [2023-12-16 12:45:23,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:45:23,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:45:23,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [125753610] [2023-12-16 12:45:23,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [125753610] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:45:23,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:45:23,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 12:45:23,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873237734] [2023-12-16 12:45:23,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:45:23,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 12:45:23,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:45:23,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 12:45:23,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:45:23,865 INFO L87 Difference]: Start difference. First operand has 105 states, 57 states have (on average 1.4210526315789473) internal successors, (81), 58 states have internal predecessors, (81), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2023-12-16 12:45:26,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:45:26,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:45:26,175 INFO L93 Difference]: Finished difference Result 207 states and 385 transitions. [2023-12-16 12:45:26,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 12:45:26,243 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 268 [2023-12-16 12:45:26,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:45:26,249 INFO L225 Difference]: With dead ends: 207 [2023-12-16 12:45:26,249 INFO L226 Difference]: Without dead ends: 103 [2023-12-16 12:45:26,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 267 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 12:45:26,267 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 12:45:26,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 163 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 12:45:26,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-16 12:45:26,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2023-12-16 12:45:26,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 56 states have (on average 1.3571428571428572) internal successors, (76), 56 states have internal predecessors, (76), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-16 12:45:26,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 166 transitions. [2023-12-16 12:45:26,322 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 166 transitions. Word has length 268 [2023-12-16 12:45:26,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:45:26,324 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 166 transitions. [2023-12-16 12:45:26,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2023-12-16 12:45:26,325 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 166 transitions. [2023-12-16 12:45:26,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-12-16 12:45:26,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:45:26,332 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:45:26,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 12:45:26,542 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 12:45:26,542 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:45:26,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:45:26,543 INFO L85 PathProgramCache]: Analyzing trace with hash 628036539, now seen corresponding path program 1 times [2023-12-16 12:45:26,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:45:26,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973635922] [2023-12-16 12:45:26,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:45:26,544 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 12:45:26,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:45:26,547 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 12:45:26,549 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 12:45:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:45:27,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 12:45:27,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:45:27,189 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2023-12-16 12:45:27,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:45:27,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:45:27,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973635922] [2023-12-16 12:45:27,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [973635922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:45:27,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:45:27,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 12:45:27,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669885752] [2023-12-16 12:45:27,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:45:27,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 12:45:27,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:45:27,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 12:45:27,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 12:45:27,195 INFO L87 Difference]: Start difference. First operand 103 states and 166 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2023-12-16 12:45:31,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:45:32,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:45:32,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:45:32,973 INFO L93 Difference]: Finished difference Result 270 states and 434 transitions. [2023-12-16 12:45:32,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 12:45:32,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) Word has length 268 [2023-12-16 12:45:32,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:45:32,977 INFO L225 Difference]: With dead ends: 270 [2023-12-16 12:45:32,992 INFO L226 Difference]: Without dead ends: 168 [2023-12-16 12:45:32,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 266 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 12:45:32,994 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 99 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-12-16 12:45:32,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 316 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2023-12-16 12:45:32,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-12-16 12:45:33,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 165. [2023-12-16 12:45:33,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 93 states have (on average 1.3763440860215055) internal successors, (128), 94 states have internal predecessors, (128), 69 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-16 12:45:33,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 266 transitions. [2023-12-16 12:45:33,055 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 266 transitions. Word has length 268 [2023-12-16 12:45:33,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:45:33,056 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 266 transitions. [2023-12-16 12:45:33,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2023-12-16 12:45:33,056 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 266 transitions. [2023-12-16 12:45:33,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-12-16 12:45:33,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:45:33,059 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:45:33,076 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 [2023-12-16 12:45:33,259 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 12:45:33,260 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:45:33,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:45:33,261 INFO L85 PathProgramCache]: Analyzing trace with hash -383080711, now seen corresponding path program 1 times [2023-12-16 12:45:33,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:45:33,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798384378] [2023-12-16 12:45:33,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:45:33,262 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 12:45:33,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:45:33,269 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 12:45:33,281 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 12:45:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:45:33,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-16 12:45:33,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 12:46:10,709 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 12:46:10,710 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 12:46:10,771 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 692 proven. 120 refuted. 0 times theorem prover too weak. 3148 trivial. 0 not checked. [2023-12-16 12:46:10,772 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:46:10,800 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 12:46:10,818 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 12:46:11,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:46:11,002 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 269 with TraceHistMax 45,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 12 known predicates. [2023-12-16 12:46:11,006 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 12:46:11,007 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 12:46:11,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:46:11 BoogieIcfgContainer [2023-12-16 12:46:11,009 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 12:46:11,011 INFO L158 Benchmark]: Toolchain (without parser) took 78257.89ms. Allocated memory is still 232.8MB. Free memory was 179.3MB in the beginning and 67.6MB in the end (delta: 111.7MB). Peak memory consumption was 112.9MB. Max. memory is 8.0GB. [2023-12-16 12:46:11,020 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 194.0MB. Free memory is still 139.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 12:46:11,020 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.52ms. Allocated memory is still 232.8MB. Free memory was 178.8MB in the beginning and 161.9MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 12:46:11,021 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.81ms. Allocated memory is still 232.8MB. Free memory was 161.9MB in the beginning and 158.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 12:46:11,021 INFO L158 Benchmark]: Boogie Preprocessor took 43.30ms. Allocated memory is still 232.8MB. Free memory was 158.8MB in the beginning and 154.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 12:46:11,021 INFO L158 Benchmark]: RCFGBuilder took 29883.54ms. Allocated memory is still 232.8MB. Free memory was 154.7MB in the beginning and 193.8MB in the end (delta: -39.2MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. [2023-12-16 12:46:11,021 INFO L158 Benchmark]: TraceAbstraction took 48004.73ms. Allocated memory is still 232.8MB. Free memory was 193.3MB in the beginning and 67.6MB in the end (delta: 125.8MB). Peak memory consumption was 126.4MB. Max. memory is 8.0GB. [2023-12-16 12:46:11,025 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 194.0MB. Free memory is still 139.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 274.52ms. Allocated memory is still 232.8MB. Free memory was 178.8MB in the beginning and 161.9MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.81ms. Allocated memory is still 232.8MB. Free memory was 161.9MB in the beginning and 158.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.30ms. Allocated memory is still 232.8MB. Free memory was 158.8MB in the beginning and 154.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 29883.54ms. Allocated memory is still 232.8MB. Free memory was 154.7MB in the beginning and 193.8MB in the end (delta: -39.2MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. * TraceAbstraction took 48004.73ms. Allocated memory is still 232.8MB. Free memory was 193.3MB in the beginning and 67.6MB in the end (delta: 125.8MB). Peak memory consumption was 126.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 269 with TraceHistMax 45,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 12 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 47.9s, OverallIterations: 3, TraceHistogramMax: 45, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 99 SdHoareTripleChecker+Valid, 8.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 479 SdHoareTripleChecker+Invalid, 7.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 155 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 324 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 534 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred 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: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 536 NumberOfCodeBlocks, 536 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 534 ConstructedInterpolants, 0 QuantifiedInterpolants, 543 SizeOfPredicates, 0 NumberOfNonLiveVariables, 864 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 7920/7920 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