/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-16.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 14:39:42,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 14:39:42,090 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 14:39:42,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 14:39:42,095 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 14:39:42,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 14:39:42,120 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 14:39:42,120 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 14:39:42,121 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 14:39:42,121 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 14:39:42,121 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 14:39:42,121 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 14:39:42,122 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 14:39:42,122 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 14:39:42,122 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 14:39:42,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 14:39:42,123 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 14:39:42,123 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 14:39:42,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 14:39:42,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 14:39:42,123 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 14:39:42,127 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 14:39:42,127 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 14:39:42,127 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 14:39:42,133 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 14:39:42,133 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 14:39:42,133 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 14:39:42,133 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 14:39:42,133 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 14:39:42,133 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 14:39:42,134 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 14:39:42,134 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 14:39:42,134 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 14:39:42,134 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 14:39:42,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:39:42,135 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 14:39:42,135 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 14:39:42,135 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 14:39:42,135 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 14:39:42,135 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 14:39:42,135 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 14:39:42,135 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 14:39:42,136 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 14:39:42,136 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 14:39:42,136 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 14:39:42,136 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 14:39:42,137 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 14:39:42,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 14:39:42,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 14:39:42,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 14:39:42,338 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 14:39:42,339 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 14:39:42,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-16.i [2023-12-16 14:39:43,268 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 14:39:43,492 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 14:39:43,493 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-16.i [2023-12-16 14:39:43,507 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77977af87/13775fcda5e34c50af4770353b552738/FLAGad1420bb0 [2023-12-16 14:39:43,516 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77977af87/13775fcda5e34c50af4770353b552738 [2023-12-16 14:39:43,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 14:39:43,518 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 14:39:43,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 14:39:43,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 14:39:43,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 14:39:43,528 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:39:43" (1/1) ... [2023-12-16 14:39:43,529 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304abb95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:39:43, skipping insertion in model container [2023-12-16 14:39:43,529 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:39:43" (1/1) ... [2023-12-16 14:39:43,565 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 14:39:43,662 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-16.i[916,929] [2023-12-16 14:39:43,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:39:43,786 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 14:39:43,798 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-16.i[916,929] [2023-12-16 14:39:43,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:39:43,855 INFO L206 MainTranslator]: Completed translation [2023-12-16 14:39:43,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:39:43 WrapperNode [2023-12-16 14:39:43,855 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 14:39:43,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 14:39:43,856 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 14:39:43,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 14:39:43,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:39:43" (1/1) ... [2023-12-16 14:39:43,874 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:39:43" (1/1) ... [2023-12-16 14:39:43,906 INFO L138 Inliner]: procedures = 27, calls = 62, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 351 [2023-12-16 14:39:43,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 14:39:43,907 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 14:39:43,907 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 14:39:43,907 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 14:39:43,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:39:43" (1/1) ... [2023-12-16 14:39:43,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:39:43" (1/1) ... [2023-12-16 14:39:43,921 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:39:43" (1/1) ... [2023-12-16 14:39:43,936 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 14:39:43,937 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:39:43" (1/1) ... [2023-12-16 14:39:43,937 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:39:43" (1/1) ... [2023-12-16 14:39:43,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:39:43" (1/1) ... [2023-12-16 14:39:43,952 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:39:43" (1/1) ... [2023-12-16 14:39:43,957 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:39:43" (1/1) ... [2023-12-16 14:39:43,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:39:43" (1/1) ... [2023-12-16 14:39:43,973 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 14:39:43,974 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 14:39:43,974 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 14:39:43,974 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 14:39:43,974 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:39:43" (1/1) ... [2023-12-16 14:39:43,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:39:43,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 14:39:44,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 14:39:44,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 14:39:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 14:39:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 14:39:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 14:39:44,028 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 14:39:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 14:39:44,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 14:39:44,136 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 14:39:44,137 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 14:40:09,048 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 14:40:09,094 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 14:40:09,094 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 14:40:09,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:40:09 BoogieIcfgContainer [2023-12-16 14:40:09,095 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 14:40:09,097 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 14:40:09,097 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 14:40:09,099 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 14:40:09,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:39:43" (1/3) ... [2023-12-16 14:40:09,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a2e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:40:09, skipping insertion in model container [2023-12-16 14:40:09,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:39:43" (2/3) ... [2023-12-16 14:40:09,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a2e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:40:09, skipping insertion in model container [2023-12-16 14:40:09,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:40:09" (3/3) ... [2023-12-16 14:40:09,102 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-16.i [2023-12-16 14:40:09,113 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 14:40:09,113 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 14:40:09,143 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 14:40:09,146 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;@315fe451, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 14:40:09,147 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 14:40:09,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 84 states have (on average 1.5119047619047619) internal successors, (127), 85 states have internal predecessors, (127), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-16 14:40:09,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2023-12-16 14:40:09,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:40:09,167 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:40:09,167 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:40:09,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:40:09,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1205345456, now seen corresponding path program 1 times [2023-12-16 14:40:09,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:40:09,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1158289473] [2023-12-16 14:40:09,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:40:09,186 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:40:09,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:40:09,189 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:40:09,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 14:40:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:40:10,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 14:40:10,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:40:10,278 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 464 proven. 0 refuted. 0 times theorem prover too weak. 4240 trivial. 0 not checked. [2023-12-16 14:40:10,279 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:40:10,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:40:10,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1158289473] [2023-12-16 14:40:10,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1158289473] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:40:10,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:40:10,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 14:40:10,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589196684] [2023-12-16 14:40:10,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:40:10,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 14:40:10,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:40:10,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 14:40:10,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:40:10,309 INFO L87 Difference]: Start difference. First operand has 136 states, 84 states have (on average 1.5119047619047619) internal successors, (127), 85 states have internal predecessors, (127), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Second operand has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-12-16 14:40:15,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:40:15,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:40:15,023 INFO L93 Difference]: Finished difference Result 269 states and 497 transitions. [2023-12-16 14:40:15,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 14:40:15,214 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 308 [2023-12-16 14:40:15,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:40:15,220 INFO L225 Difference]: With dead ends: 269 [2023-12-16 14:40:15,220 INFO L226 Difference]: Without dead ends: 134 [2023-12-16 14:40:15,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:40:15,225 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-16 14:40:15,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2023-12-16 14:40:15,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-12-16 14:40:15,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2023-12-16 14:40:15,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 83 states have (on average 1.4578313253012047) internal successors, (121), 83 states have internal predecessors, (121), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-16 14:40:15,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 219 transitions. [2023-12-16 14:40:15,262 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 219 transitions. Word has length 308 [2023-12-16 14:40:15,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:40:15,263 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 219 transitions. [2023-12-16 14:40:15,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-12-16 14:40:15,263 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 219 transitions. [2023-12-16 14:40:15,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2023-12-16 14:40:15,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:40:15,268 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:40:15,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 14:40:15,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:40:15,493 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:40:15,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:40:15,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1873069038, now seen corresponding path program 1 times [2023-12-16 14:40:15,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:40:15,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417215641] [2023-12-16 14:40:15,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:40:15,495 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:40:15,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:40:15,497 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:40:15,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 14:40:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:40:16,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 14:40:16,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:40:28,608 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 2786 proven. 294 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2023-12-16 14:40:28,608 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:40:28,918 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:40:28,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417215641] [2023-12-16 14:40:28,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417215641] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 14:40:28,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [63850484] [2023-12-16 14:40:28,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:40:28,919 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 14:40:28,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 14:40:28,981 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 14:40:28,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-16 14:40:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:40:29,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 14:40:29,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:40:35,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2023-12-16 14:40:35,147 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:40:35,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [63850484] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:40:35,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 14:40:35,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 12 [2023-12-16 14:40:35,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277797137] [2023-12-16 14:40:35,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:40:35,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 14:40:35,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:40:35,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 14:40:35,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-12-16 14:40:35,150 INFO L87 Difference]: Start difference. First operand 134 states and 219 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2023-12-16 14:40:39,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:40:43,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:40:47,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:40:48,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:40:48,030 INFO L93 Difference]: Finished difference Result 400 states and 655 transitions. [2023-12-16 14:40:48,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 14:40:48,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 308 [2023-12-16 14:40:48,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:40:48,036 INFO L225 Difference]: With dead ends: 400 [2023-12-16 14:40:48,036 INFO L226 Difference]: Without dead ends: 267 [2023-12-16 14:40:48,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 638 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-12-16 14:40:48,037 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 66 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2023-12-16 14:40:48,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 428 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 3 Unknown, 0 Unchecked, 12.9s Time] [2023-12-16 14:40:48,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-12-16 14:40:48,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 265. [2023-12-16 14:40:48,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 164 states have (on average 1.4573170731707317) internal successors, (239), 164 states have internal predecessors, (239), 98 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-16 14:40:48,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 435 transitions. [2023-12-16 14:40:48,074 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 435 transitions. Word has length 308 [2023-12-16 14:40:48,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:40:48,075 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 435 transitions. [2023-12-16 14:40:48,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2023-12-16 14:40:48,075 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 435 transitions. [2023-12-16 14:40:48,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2023-12-16 14:40:48,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:40:48,079 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:40:48,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-16 14:40:48,327 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 14:40:48,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:40:48,489 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:40:48,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:40:48,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1286263024, now seen corresponding path program 1 times [2023-12-16 14:40:48,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:40:48,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712851790] [2023-12-16 14:40:48,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:40:48,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:40:48,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:40:48,491 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:40:48,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 14:40:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:40:49,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 14:40:49,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 14:41:00,012 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 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:41:00,050 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:41:00,064 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 14:41:00,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 14:41:00,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:41:00,281 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 309 with TraceHistMax 49,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. [2023-12-16 14:41:00,285 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 14:41:00,286 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 14:41:00,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:41:00 BoogieIcfgContainer [2023-12-16 14:41:00,288 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 14:41:00,288 INFO L158 Benchmark]: Toolchain (without parser) took 76770.10ms. Allocated memory is still 294.6MB. Free memory was 249.5MB in the beginning and 140.6MB in the end (delta: 108.9MB). Peak memory consumption was 109.4MB. Max. memory is 8.0GB. [2023-12-16 14:41:00,289 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 194.0MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 14:41:00,289 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.34ms. Allocated memory is still 294.6MB. Free memory was 249.5MB in the beginning and 224.9MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-16 14:41:00,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.53ms. Allocated memory is still 294.6MB. Free memory was 224.9MB in the beginning and 220.1MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 14:41:00,290 INFO L158 Benchmark]: Boogie Preprocessor took 65.92ms. Allocated memory is still 294.6MB. Free memory was 220.1MB in the beginning and 210.2MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-16 14:41:00,290 INFO L158 Benchmark]: RCFGBuilder took 25120.97ms. Allocated memory is still 294.6MB. Free memory was 210.2MB in the beginning and 234.4MB in the end (delta: -24.2MB). Peak memory consumption was 33.5MB. Max. memory is 8.0GB. [2023-12-16 14:41:00,290 INFO L158 Benchmark]: TraceAbstraction took 51191.18ms. Allocated memory is still 294.6MB. Free memory was 233.9MB in the beginning and 140.6MB in the end (delta: 93.3MB). Peak memory consumption was 92.7MB. Max. memory is 8.0GB. [2023-12-16 14:41:00,291 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 194.0MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 336.34ms. Allocated memory is still 294.6MB. Free memory was 249.5MB in the beginning and 224.9MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.53ms. Allocated memory is still 294.6MB. Free memory was 224.9MB in the beginning and 220.1MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 65.92ms. Allocated memory is still 294.6MB. Free memory was 220.1MB in the beginning and 210.2MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 25120.97ms. Allocated memory is still 294.6MB. Free memory was 210.2MB in the beginning and 234.4MB in the end (delta: -24.2MB). Peak memory consumption was 33.5MB. Max. memory is 8.0GB. * TraceAbstraction took 51191.18ms. Allocated memory is still 294.6MB. Free memory was 233.9MB in the beginning and 140.6MB in the end (delta: 93.3MB). Peak memory consumption was 92.7MB. 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 309 with TraceHistMax 49,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 136 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 51.2s, OverallIterations: 3, TraceHistogramMax: 49, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 17.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 17.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 644 SdHoareTripleChecker+Invalid, 17.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 213 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 431 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 956 GetRequests, 945 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=265occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 18.0s InterpolantComputationTime, 924 NumberOfCodeBlocks, 924 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 921 ConstructedInterpolants, 0 QuantifiedInterpolants, 3342 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1593 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 13818/14112 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