/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/loop-invgen/id_build.i.p+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 16:29:43,392 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 16:29:43,477 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 16:29:43,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 16:29:43,482 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 16:29:43,510 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 16:29:43,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 16:29:43,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 16:29:43,511 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 16:29:43,514 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 16:29:43,515 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 16:29:43,515 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 16:29:43,516 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 16:29:43,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 16:29:43,517 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 16:29:43,518 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 16:29:43,518 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 16:29:43,518 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 16:29:43,519 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 16:29:43,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 16:29:43,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 16:29:43,519 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 16:29:43,521 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 16:29:43,521 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 16:29:43,521 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 16:29:43,521 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 16:29:43,521 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 16:29:43,521 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 16:29:43,522 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 16:29:43,522 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 16:29:43,523 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 16:29:43,523 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 16:29:43,523 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 16:29:43,523 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 16:29:43,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 16:29:43,524 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 16:29:43,524 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 16:29:43,524 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 16:29:43,524 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 16:29:43,524 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 16:29:43,524 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 16:29:43,525 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 16:29:43,525 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 16:29:43,525 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 16:29:43,525 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 16:29:43,525 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 16:29:43,525 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 16:29:43,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 16:29:43,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 16:29:43,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 16:29:43,783 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 16:29:43,783 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 16:29:43,785 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c [2023-12-16 16:29:44,929 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 16:29:45,180 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 16:29:45,181 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c [2023-12-16 16:29:45,200 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f6d40ba2/83b49538ec074a0c8b53f24c4f69ab38/FLAGad9b544b0 [2023-12-16 16:29:45,212 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f6d40ba2/83b49538ec074a0c8b53f24c4f69ab38 [2023-12-16 16:29:45,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 16:29:45,215 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 16:29:45,223 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 16:29:45,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 16:29:45,228 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 16:29:45,228 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:29:45" (1/1) ... [2023-12-16 16:29:45,229 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f79d30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:45, skipping insertion in model container [2023-12-16 16:29:45,229 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:29:45" (1/1) ... [2023-12-16 16:29:45,287 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 16:29:45,618 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c[34383,34396] [2023-12-16 16:29:45,643 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c[39106,39119] [2023-12-16 16:29:45,664 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 16:29:45,676 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 16:29:45,816 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c[34383,34396] [2023-12-16 16:29:45,831 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c[39106,39119] [2023-12-16 16:29:45,845 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 16:29:45,856 INFO L206 MainTranslator]: Completed translation [2023-12-16 16:29:45,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:45 WrapperNode [2023-12-16 16:29:45,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 16:29:45,857 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 16:29:45,857 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 16:29:45,857 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 16:29:45,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:45" (1/1) ... [2023-12-16 16:29:45,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:45" (1/1) ... [2023-12-16 16:29:45,958 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1588 [2023-12-16 16:29:45,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 16:29:45,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 16:29:45,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 16:29:45,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 16:29:45,980 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:45" (1/1) ... [2023-12-16 16:29:45,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:45" (1/1) ... [2023-12-16 16:29:45,999 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:45" (1/1) ... [2023-12-16 16:29:46,064 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 16:29:46,064 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:45" (1/1) ... [2023-12-16 16:29:46,064 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:45" (1/1) ... [2023-12-16 16:29:46,098 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:45" (1/1) ... [2023-12-16 16:29:46,105 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:45" (1/1) ... [2023-12-16 16:29:46,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:45" (1/1) ... [2023-12-16 16:29:46,121 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:45" (1/1) ... [2023-12-16 16:29:46,142 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 16:29:46,143 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 16:29:46,143 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 16:29:46,143 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 16:29:46,144 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:45" (1/1) ... [2023-12-16 16:29:46,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 16:29:46,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 16:29:46,180 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 16:29:46,207 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 16:29:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 16:29:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 16:29:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 16:29:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 16:29:46,393 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 16:29:46,395 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 16:29:47,775 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 16:29:47,820 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 16:29:47,820 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-16 16:29:47,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:29:47 BoogieIcfgContainer [2023-12-16 16:29:47,821 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 16:29:47,823 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 16:29:47,823 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 16:29:47,826 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 16:29:47,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:29:45" (1/3) ... [2023-12-16 16:29:47,827 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61185d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:29:47, skipping insertion in model container [2023-12-16 16:29:47,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:45" (2/3) ... [2023-12-16 16:29:47,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61185d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:29:47, skipping insertion in model container [2023-12-16 16:29:47,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:29:47" (3/3) ... [2023-12-16 16:29:47,829 INFO L112 eAbstractionObserver]: Analyzing ICFG id_build.i.p+sep-reducer.c [2023-12-16 16:29:47,846 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 16:29:47,847 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 16:29:47,903 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 16:29:47,908 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;@3daa6fdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 16:29:47,908 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 16:29:47,914 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 242 states have (on average 1.9834710743801653) internal successors, (480), 244 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:29:47,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-16 16:29:47,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:29:47,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:29:47,936 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:29:47,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:29:47,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1838429741, now seen corresponding path program 1 times [2023-12-16 16:29:47,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:29:47,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115100896] [2023-12-16 16:29:47,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:29:47,959 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 16:29:47,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:29:47,962 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 16:29:47,971 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 16:29:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:29:48,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 16:29:48,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:29:48,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 16:29:48,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:29:48,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:29:48,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1115100896] [2023-12-16 16:29:48,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1115100896] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:29:48,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:29:48,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 16:29:48,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137488784] [2023-12-16 16:29:48,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:29:48,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 16:29:48,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:29:48,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 16:29:48,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-16 16:29:48,510 INFO L87 Difference]: Start difference. First operand has 245 states, 242 states have (on average 1.9834710743801653) internal successors, (480), 244 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:29:49,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:29:49,476 INFO L93 Difference]: Finished difference Result 433 states and 796 transitions. [2023-12-16 16:29:49,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 16:29:49,478 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2023-12-16 16:29:49,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:29:49,486 INFO L225 Difference]: With dead ends: 433 [2023-12-16 16:29:49,486 INFO L226 Difference]: Without dead ends: 204 [2023-12-16 16:29:49,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-16 16:29:49,492 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 219 mSDsluCounter, 1465 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 16:29:49,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 1654 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 16:29:49,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-12-16 16:29:49,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 176. [2023-12-16 16:29:49,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 174 states have (on average 1.0919540229885059) internal successors, (190), 175 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:29:49,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 190 transitions. [2023-12-16 16:29:49,525 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 190 transitions. Word has length 133 [2023-12-16 16:29:49,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:29:49,525 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 190 transitions. [2023-12-16 16:29:49,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:29:49,526 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 190 transitions. [2023-12-16 16:29:49,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 16:29:49,527 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:29:49,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:29:49,535 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 16:29:49,734 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 16:29:49,734 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:29:49,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:29:49,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1922577386, now seen corresponding path program 1 times [2023-12-16 16:29:49,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:29:49,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921298867] [2023-12-16 16:29:49,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:29:49,736 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 16:29:49,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:29:49,738 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 16:29:49,739 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 16:29:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:29:50,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 16:29:50,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:29:50,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 16:29:50,704 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:29:56,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 16:29:56,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:29:56,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921298867] [2023-12-16 16:29:56,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1921298867] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 16:29:56,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 16:29:56,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 21 [2023-12-16 16:29:56,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662380666] [2023-12-16 16:29:56,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:29:56,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 16:29:56,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:29:56,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 16:29:56,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2023-12-16 16:29:56,401 INFO L87 Difference]: Start difference. First operand 176 states and 190 transitions. Second operand has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 11 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:30:04,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:30:04,153 INFO L93 Difference]: Finished difference Result 180 states and 194 transitions. [2023-12-16 16:30:04,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 16:30:04,154 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 11 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-16 16:30:04,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:30:04,157 INFO L225 Difference]: With dead ends: 180 [2023-12-16 16:30:04,158 INFO L226 Difference]: Without dead ends: 178 [2023-12-16 16:30:04,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=265, Invalid=665, Unknown=0, NotChecked=0, Total=930 [2023-12-16 16:30:04,161 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 316 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-16 16:30:04,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 210 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-12-16 16:30:04,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-12-16 16:30:04,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 174. [2023-12-16 16:30:04,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 1.046242774566474) internal successors, (181), 173 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:30:04,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 181 transitions. [2023-12-16 16:30:04,170 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 181 transitions. Word has length 136 [2023-12-16 16:30:04,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:30:04,170 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 181 transitions. [2023-12-16 16:30:04,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 11 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:30:04,171 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 181 transitions. [2023-12-16 16:30:04,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-16 16:30:04,172 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:30:04,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:30:04,181 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 16:30:04,376 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 16:30:04,377 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:30:04,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:30:04,377 INFO L85 PathProgramCache]: Analyzing trace with hash 760943064, now seen corresponding path program 1 times [2023-12-16 16:30:04,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:30:04,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039792109] [2023-12-16 16:30:04,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:30:04,378 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 16:30:04,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:30:04,380 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 16:30:04,393 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 16:30:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:30:04,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 16:30:04,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:30:05,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 16:30:05,404 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:30:08,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 16:30:08,814 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:30:08,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2039792109] [2023-12-16 16:30:08,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2039792109] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 16:30:08,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 16:30:08,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2023-12-16 16:30:08,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842679583] [2023-12-16 16:30:08,814 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 16:30:08,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-16 16:30:08,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:30:08,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-16 16:30:08,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2023-12-16 16:30:08,817 INFO L87 Difference]: Start difference. First operand 174 states and 181 transitions. Second operand has 23 states, 23 states have (on average 11.956521739130435) internal successors, (275), 22 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:30:22,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:30:22,383 INFO L93 Difference]: Finished difference Result 476 states and 538 transitions. [2023-12-16 16:30:22,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-16 16:30:22,384 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 11.956521739130435) internal successors, (275), 22 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-16 16:30:22,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:30:22,386 INFO L225 Difference]: With dead ends: 476 [2023-12-16 16:30:22,386 INFO L226 Difference]: Without dead ends: 474 [2023-12-16 16:30:22,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=311, Invalid=879, Unknown=0, NotChecked=0, Total=1190 [2023-12-16 16:30:22,388 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 220 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2023-12-16 16:30:22,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 459 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2023-12-16 16:30:22,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2023-12-16 16:30:22,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 468. [2023-12-16 16:30:22,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 467 states have (on average 1.0171306209850106) internal successors, (475), 467 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:30:22,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 475 transitions. [2023-12-16 16:30:22,407 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 475 transitions. Word has length 138 [2023-12-16 16:30:22,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:30:22,407 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 475 transitions. [2023-12-16 16:30:22,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.956521739130435) internal successors, (275), 22 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:30:22,407 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 475 transitions. [2023-12-16 16:30:22,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2023-12-16 16:30:22,414 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:30:22,414 INFO L195 NwaCegarLoop]: trace histogram [57, 57, 57, 57, 56, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:30:22,424 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 (4)] Ended with exit code 0 [2023-12-16 16:30:22,621 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 16:30:22,622 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:30:22,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:30:22,623 INFO L85 PathProgramCache]: Analyzing trace with hash -822481853, now seen corresponding path program 1 times [2023-12-16 16:30:22,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:30:22,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727962044] [2023-12-16 16:30:22,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:30:22,624 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 16:30:22,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:30:22,625 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 16:30:22,625 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 16:30:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:30:23,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-16 16:30:23,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:30:25,292 INFO L134 CoverageAnalysis]: Checked inductivity of 8492 backedges. 0 proven. 7456 refuted. 0 times theorem prover too weak. 1036 trivial. 0 not checked. [2023-12-16 16:30:25,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:30:34,753 INFO L134 CoverageAnalysis]: Checked inductivity of 8492 backedges. 0 proven. 7456 refuted. 0 times theorem prover too weak. 1036 trivial. 0 not checked. [2023-12-16 16:30:34,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:30:34,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1727962044] [2023-12-16 16:30:34,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1727962044] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 16:30:34,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 16:30:34,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 36 [2023-12-16 16:30:34,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569919468] [2023-12-16 16:30:34,755 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 16:30:34,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-12-16 16:30:34,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:30:34,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-12-16 16:30:34,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=983, Unknown=0, NotChecked=0, Total=1332 [2023-12-16 16:30:34,758 INFO L87 Difference]: Start difference. First operand 468 states and 475 transitions. Second operand has 37 states, 37 states have (on average 10.08108108108108) internal successors, (373), 36 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:30:40,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-16 16:30:41,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-16 16:30:42,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-16 16:30:44,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] Received shutdown request... [2023-12-16 16:30:51,782 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 16:30:51,782 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 16:30:52,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 16:30:52,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 874 GetRequests, 827 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=606, Invalid=1650, Unknown=0, NotChecked=0, Total=2256 [2023-12-16 16:30:52,129 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 120 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 1964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-12-16 16:30:52,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 825 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-12-16 16:30:52,131 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 16:30:52,144 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 16:30:52,331 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 16:30:52,332 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (468states) and FLOYD_HOARE automaton (currently 20 states, 37 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-13-2-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ∧-12-2-1 context. [2023-12-16 16:30:52,334 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 16:30:52,337 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-16 16:30:52,339 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 16:30:52,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:30:52 BoogieIcfgContainer [2023-12-16 16:30:52,341 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 16:30:52,342 INFO L158 Benchmark]: Toolchain (without parser) took 67127.10ms. Allocated memory was 345.0MB in the beginning and 442.5MB in the end (delta: 97.5MB). Free memory was 293.0MB in the beginning and 151.4MB in the end (delta: 141.6MB). Peak memory consumption was 240.1MB. Max. memory is 8.0GB. [2023-12-16 16:30:52,343 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 207.6MB. Free memory was 159.5MB in the beginning and 159.4MB in the end (delta: 128.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 16:30:52,343 INFO L158 Benchmark]: CACSL2BoogieTranslator took 633.75ms. Allocated memory is still 345.0MB. Free memory was 293.0MB in the beginning and 251.4MB in the end (delta: 41.6MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2023-12-16 16:30:52,343 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.44ms. Allocated memory is still 345.0MB. Free memory was 251.4MB in the beginning and 244.8MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 16:30:52,344 INFO L158 Benchmark]: Boogie Preprocessor took 183.23ms. Allocated memory is still 345.0MB. Free memory was 244.8MB in the beginning and 306.6MB in the end (delta: -61.8MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. [2023-12-16 16:30:52,344 INFO L158 Benchmark]: RCFGBuilder took 1678.01ms. Allocated memory is still 345.0MB. Free memory was 306.6MB in the beginning and 198.6MB in the end (delta: 108.0MB). Peak memory consumption was 108.0MB. Max. memory is 8.0GB. [2023-12-16 16:30:52,345 INFO L158 Benchmark]: TraceAbstraction took 64519.03ms. Allocated memory was 345.0MB in the beginning and 442.5MB in the end (delta: 97.5MB). Free memory was 198.1MB in the beginning and 151.4MB in the end (delta: 46.6MB). Peak memory consumption was 144.3MB. Max. memory is 8.0GB. [2023-12-16 16:30:52,349 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 207.6MB. Free memory was 159.5MB in the beginning and 159.4MB in the end (delta: 128.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 633.75ms. Allocated memory is still 345.0MB. Free memory was 293.0MB in the beginning and 251.4MB in the end (delta: 41.6MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 101.44ms. Allocated memory is still 345.0MB. Free memory was 251.4MB in the beginning and 244.8MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 183.23ms. Allocated memory is still 345.0MB. Free memory was 244.8MB in the beginning and 306.6MB in the end (delta: -61.8MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. * RCFGBuilder took 1678.01ms. Allocated memory is still 345.0MB. Free memory was 306.6MB in the beginning and 198.6MB in the end (delta: 108.0MB). Peak memory consumption was 108.0MB. Max. memory is 8.0GB. * TraceAbstraction took 64519.03ms. Allocated memory was 345.0MB in the beginning and 442.5MB in the end (delta: 97.5MB). Free memory was 198.1MB in the beginning and 151.4MB in the end (delta: 46.6MB). Peak memory consumption was 144.3MB. 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: 2003]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2003). Cancelled while NwaCegarLoop was constructing difference of abstraction (468states) and FLOYD_HOARE automaton (currently 20 states, 37 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-13-2-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ∧-12-2-1 context. - TimeoutResultAtElement [Line: 2312]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2312). Cancelled while NwaCegarLoop was constructing difference of abstraction (468states) and FLOYD_HOARE automaton (currently 20 states, 37 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-13-2-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ∧-12-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 64.5s, OverallIterations: 4, TraceHistogramMax: 57, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 39.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 875 SdHoareTripleChecker+Valid, 21.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 875 mSDsluCounter, 3148 SdHoareTripleChecker+Invalid, 20.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2813 mSDsCounter, 172 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4487 IncrementalHoareTripleChecker+Invalid, 4659 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 172 mSolverCounterUnsat, 335 mSDtfsCounter, 4487 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1571 GetRequests, 1453 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 19.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=468occurred in iteration=3, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 38 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 21.7s InterpolantComputationTime, 839 NumberOfCodeBlocks, 839 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 1538 ConstructedInterpolants, 3 QuantifiedInterpolants, 16828 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1925 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 2073/16988 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