/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_loopvsstraightlinecode_100-1loop_file-38.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 21:21:19,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 21:21:19,215 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 21:21:19,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 21:21:19,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 21:21:19,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 21:21:19,249 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 21:21:19,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 21:21:19,249 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 21:21:19,252 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 21:21:19,252 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 21:21:19,253 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 21:21:19,253 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 21:21:19,254 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 21:21:19,254 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 21:21:19,255 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 21:21:19,255 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 21:21:19,255 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 21:21:19,255 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 21:21:19,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 21:21:19,256 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 21:21:19,256 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 21:21:19,256 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 21:21:19,256 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 21:21:19,257 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 21:21:19,257 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 21:21:19,257 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 21:21:19,257 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 21:21:19,257 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 21:21:19,257 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 21:21:19,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 21:21:19,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 21:21:19,258 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 21:21:19,258 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 21:21:19,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 21:21:19,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 21:21:19,259 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 21:21:19,259 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 21:21:19,259 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 21:21:19,259 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 21:21:19,259 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 21:21:19,260 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 21:21:19,260 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 21:21:19,260 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 21:21:19,260 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 21:21:19,260 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 21:21:19,260 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 21:21:19,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 21:21:19,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 21:21:19,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 21:21:19,457 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 21:21:19,458 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 21:21:19,460 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-38.i [2023-12-23 21:21:20,473 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 21:21:20,706 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 21:21:20,706 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-38.i [2023-12-23 21:21:20,712 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eac9a14ad/39c95343bff445dc8f9dc25e8cba2eb4/FLAG8f9503a59 [2023-12-23 21:21:21,102 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eac9a14ad/39c95343bff445dc8f9dc25e8cba2eb4 [2023-12-23 21:21:21,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 21:21:21,105 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 21:21:21,106 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 21:21:21,106 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 21:21:21,110 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 21:21:21,111 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:21:21" (1/1) ... [2023-12-23 21:21:21,111 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32839fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:21:21, skipping insertion in model container [2023-12-23 21:21:21,112 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:21:21" (1/1) ... [2023-12-23 21:21:21,150 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 21:21:21,256 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_loopvsstraightlinecode_100-1loop_file-38.i[916,929] [2023-12-23 21:21:21,301 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 21:21:21,311 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 21:21:21,320 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_loopvsstraightlinecode_100-1loop_file-38.i[916,929] [2023-12-23 21:21:21,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 21:21:21,380 INFO L206 MainTranslator]: Completed translation [2023-12-23 21:21:21,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:21:21 WrapperNode [2023-12-23 21:21:21,380 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 21:21:21,381 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 21:21:21,381 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 21:21:21,381 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 21:21:21,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:21:21" (1/1) ... [2023-12-23 21:21:21,396 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:21:21" (1/1) ... [2023-12-23 21:21:21,416 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 171 [2023-12-23 21:21:21,417 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 21:21:21,417 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 21:21:21,417 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 21:21:21,418 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 21:21:21,427 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:21:21" (1/1) ... [2023-12-23 21:21:21,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:21:21" (1/1) ... [2023-12-23 21:21:21,438 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:21:21" (1/1) ... [2023-12-23 21:21:21,458 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-23 21:21:21,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:21:21" (1/1) ... [2023-12-23 21:21:21,459 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:21:21" (1/1) ... [2023-12-23 21:21:21,466 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:21:21" (1/1) ... [2023-12-23 21:21:21,469 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:21:21" (1/1) ... [2023-12-23 21:21:21,470 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:21:21" (1/1) ... [2023-12-23 21:21:21,472 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:21:21" (1/1) ... [2023-12-23 21:21:21,490 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 21:21:21,491 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 21:21:21,491 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 21:21:21,491 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 21:21:21,495 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:21:21" (1/1) ... [2023-12-23 21:21:21,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 21:21:21,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 21:21:21,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-23 21:21:21,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-23 21:21:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 21:21:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 21:21:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 21:21:21,607 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 21:21:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 21:21:21,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 21:21:21,672 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 21:21:21,674 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 21:21:36,167 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 21:21:36,222 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 21:21:36,222 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 21:21:36,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:21:36 BoogieIcfgContainer [2023-12-23 21:21:36,222 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 21:21:36,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 21:21:36,224 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 21:21:36,226 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 21:21:36,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:21:21" (1/3) ... [2023-12-23 21:21:36,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60847c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:21:36, skipping insertion in model container [2023-12-23 21:21:36,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:21:21" (2/3) ... [2023-12-23 21:21:36,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60847c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:21:36, skipping insertion in model container [2023-12-23 21:21:36,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:21:36" (3/3) ... [2023-12-23 21:21:36,234 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-38.i [2023-12-23 21:21:36,246 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 21:21:36,247 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 21:21:36,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 21:21:36,302 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;@1a7bdead, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 21:21:36,303 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 21:21:36,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 43 states have (on average 1.6046511627906976) internal successors, (69), 44 states have internal predecessors, (69), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-23 21:21:36,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-23 21:21:36,320 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:21:36,320 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 21:21:36,320 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:21:36,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:21:36,324 INFO L85 PathProgramCache]: Analyzing trace with hash -668574577, now seen corresponding path program 1 times [2023-12-23 21:21:36,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:21:36,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629385658] [2023-12-23 21:21:36,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:21:36,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 21:21:36,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:21:36,342 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 21:21:36,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-23 21:21:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:21:37,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 21:21:37,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:21:37,248 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-12-23 21:21:37,248 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 21:21:37,249 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 21:21:37,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629385658] [2023-12-23 21:21:37,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629385658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 21:21:37,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 21:21:37,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 21:21:37,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140874785] [2023-12-23 21:21:37,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 21:21:37,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 21:21:37,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 21:21:37,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 21:21:37,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 21:21:37,290 INFO L87 Difference]: Start difference. First operand has 62 states, 43 states have (on average 1.6046511627906976) internal successors, (69), 44 states have internal predecessors, (69), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-23 21:21:42,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:21:43,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 21:21:43,027 INFO L93 Difference]: Finished difference Result 123 states and 217 transitions. [2023-12-23 21:21:43,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 21:21:43,030 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 109 [2023-12-23 21:21:43,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 21:21:43,034 INFO L225 Difference]: With dead ends: 123 [2023-12-23 21:21:43,034 INFO L226 Difference]: Without dead ends: 60 [2023-12-23 21:21:43,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 21:21:43,038 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-12-23 21:21:43,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2023-12-23 21:21:43,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-12-23 21:21:43,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-12-23 21:21:43,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 42 states have (on average 1.5238095238095237) internal successors, (64), 42 states have internal predecessors, (64), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-23 21:21:43,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 96 transitions. [2023-12-23 21:21:43,064 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 96 transitions. Word has length 109 [2023-12-23 21:21:43,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 21:21:43,065 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 96 transitions. [2023-12-23 21:21:43,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-23 21:21:43,065 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 96 transitions. [2023-12-23 21:21:43,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-23 21:21:43,068 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:21:43,068 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 21:21:43,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-23 21:21:43,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 21:21:43,269 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:21:43,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:21:43,270 INFO L85 PathProgramCache]: Analyzing trace with hash -825701421, now seen corresponding path program 1 times [2023-12-23 21:21:43,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:21:43,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767091532] [2023-12-23 21:21:43,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:21:43,271 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 21:21:43,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:21:43,272 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 21:21:43,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-23 21:21:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:21:44,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 21:21:44,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:21:45,208 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 249 proven. 18 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-12-23 21:21:45,209 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 21:21:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 27 proven. 18 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-23 21:21:46,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 21:21:46,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767091532] [2023-12-23 21:21:46,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767091532] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 21:21:46,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 21:21:46,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-23 21:21:46,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835849755] [2023-12-23 21:21:46,277 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 21:21:46,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 21:21:46,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 21:21:46,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 21:21:46,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 21:21:46,279 INFO L87 Difference]: Start difference. First operand 60 states and 96 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-23 21:21:53,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:21:57,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:22:01,223 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 [] [2023-12-23 21:22:01,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 21:22:01,712 INFO L93 Difference]: Finished difference Result 127 states and 198 transitions. [2023-12-23 21:22:01,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 21:22:01,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 109 [2023-12-23 21:22:01,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 21:22:01,714 INFO L225 Difference]: With dead ends: 127 [2023-12-23 21:22:01,714 INFO L226 Difference]: Without dead ends: 68 [2023-12-23 21:22:01,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 210 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-23 21:22:01,715 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 121 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 21 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2023-12-23 21:22:01,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 174 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 113 Invalid, 3 Unknown, 0 Unchecked, 15.1s Time] [2023-12-23 21:22:01,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-12-23 21:22:01,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2023-12-23 21:22:01,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 45 states have (on average 1.4666666666666666) internal successors, (66), 45 states have internal predecessors, (66), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-23 21:22:01,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 98 transitions. [2023-12-23 21:22:01,724 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 98 transitions. Word has length 109 [2023-12-23 21:22:01,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 21:22:01,727 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 98 transitions. [2023-12-23 21:22:01,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-23 21:22:01,728 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 98 transitions. [2023-12-23 21:22:01,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-23 21:22:01,730 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:22:01,730 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 21:22:01,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-23 21:22:01,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 21:22:01,949 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:22:01,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:22:01,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1880917973, now seen corresponding path program 1 times [2023-12-23 21:22:01,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:22:01,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919221822] [2023-12-23 21:22:01,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:22:01,951 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 21:22:01,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:22:01,952 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 21:22:01,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-23 21:22:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:22:02,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 21:22:02,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:22:04,190 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 243 proven. 27 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-23 21:22:04,190 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 21:22:05,368 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-23 21:22:05,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 21:22:05,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919221822] [2023-12-23 21:22:05,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919221822] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 21:22:05,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 21:22:05,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-23 21:22:05,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261474721] [2023-12-23 21:22:05,369 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 21:22:05,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 21:22:05,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 21:22:05,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 21:22:05,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 21:22:05,370 INFO L87 Difference]: Start difference. First operand 64 states and 98 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-23 21:22:12,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:22:16,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:22:20,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:22:21,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 21:22:21,547 INFO L93 Difference]: Finished difference Result 146 states and 219 transitions. [2023-12-23 21:22:21,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-23 21:22:21,548 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 109 [2023-12-23 21:22:21,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 21:22:21,549 INFO L225 Difference]: With dead ends: 146 [2023-12-23 21:22:21,549 INFO L226 Difference]: Without dead ends: 83 [2023-12-23 21:22:21,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 210 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-23 21:22:21,551 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 156 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 27 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2023-12-23 21:22:21,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 189 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 160 Invalid, 3 Unknown, 0 Unchecked, 15.8s Time] [2023-12-23 21:22:21,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-23 21:22:21,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2023-12-23 21:22:21,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 52 states have (on average 1.3653846153846154) internal successors, (71), 53 states have internal predecessors, (71), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-23 21:22:21,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 115 transitions. [2023-12-23 21:22:21,560 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 115 transitions. Word has length 109 [2023-12-23 21:22:21,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 21:22:21,561 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 115 transitions. [2023-12-23 21:22:21,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-23 21:22:21,561 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 115 transitions. [2023-12-23 21:22:21,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-23 21:22:21,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:22:21,562 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 21:22:21,584 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 [2023-12-23 21:22:21,774 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 [2023-12-23 21:22:21,774 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:22:21,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:22:21,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1826643202, now seen corresponding path program 1 times [2023-12-23 21:22:21,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:22:21,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114566999] [2023-12-23 21:22:21,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:22:21,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 21:22:21,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:22:21,777 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) [2023-12-23 21:22:21,778 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 [2023-12-23 21:22:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:22:22,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 21:22:22,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:22:27,576 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-23 21:22:27,576 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 21:22:31,628 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-23 21:22:31,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 21:22:31,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114566999] [2023-12-23 21:22:31,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114566999] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 21:22:31,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 21:22:31,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-23 21:22:31,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168934481] [2023-12-23 21:22:31,629 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 21:22:31,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 21:22:31,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 21:22:31,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 21:22:31,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2023-12-23 21:22:31,630 INFO L87 Difference]: Start difference. First operand 78 states and 115 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 4 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (32), 2 states have call predecessors, (32), 4 states have call successors, (32) [2023-12-23 21:22:38,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:22:42,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:22:46,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:22:52,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:22:56,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:23:00,369 WARN L539 Checker$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 [] [2023-12-23 21:23:00,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 21:23:00,853 INFO L93 Difference]: Finished difference Result 157 states and 223 transitions. [2023-12-23 21:23:00,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 21:23:00,854 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 4 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (32), 2 states have call predecessors, (32), 4 states have call successors, (32) Word has length 110 [2023-12-23 21:23:00,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 21:23:00,856 INFO L225 Difference]: With dead ends: 157 [2023-12-23 21:23:00,856 INFO L226 Difference]: Without dead ends: 90 [2023-12-23 21:23:00,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2023-12-23 21:23:00,857 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 175 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.7s IncrementalHoareTripleChecker+Time [2023-12-23 21:23:00,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 160 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 6 Unknown, 0 Unchecked, 28.7s Time] [2023-12-23 21:23:00,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-23 21:23:00,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2023-12-23 21:23:00,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 59 states have internal predecessors, (76), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-23 21:23:00,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 120 transitions. [2023-12-23 21:23:00,867 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 120 transitions. Word has length 110 [2023-12-23 21:23:00,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 21:23:00,867 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 120 transitions. [2023-12-23 21:23:00,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 4 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (32), 2 states have call predecessors, (32), 4 states have call successors, (32) [2023-12-23 21:23:00,867 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 120 transitions. [2023-12-23 21:23:00,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-23 21:23:00,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:23:00,869 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 21:23:00,892 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 (5)] Ended with exit code 0 [2023-12-23 21:23:01,069 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 [2023-12-23 21:23:01,070 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:23:01,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:23:01,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1447255740, now seen corresponding path program 1 times [2023-12-23 21:23:01,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:23:01,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935838056] [2023-12-23 21:23:01,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:23:01,071 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 21:23:01,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:23:01,072 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 21:23:01,073 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 (6)] Waiting until timeout for monitored process [2023-12-23 21:23:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:23:01,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 21:23:01,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:23:05,368 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 306 proven. 42 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-12-23 21:23:05,369 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 21:23:08,375 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 42 proven. 45 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2023-12-23 21:23:08,375 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 21:23:08,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935838056] [2023-12-23 21:23:08,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [935838056] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 21:23:08,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 21:23:08,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2023-12-23 21:23:08,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774725827] [2023-12-23 21:23:08,376 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 21:23:08,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-23 21:23:08,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 21:23:08,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-23 21:23:08,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-23 21:23:08,377 INFO L87 Difference]: Start difference. First operand 86 states and 120 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 3 states have call successors, (25), 3 states have call predecessors, (25), 7 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-12-23 21:23:18,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:23:22,035 WARN L539 Checker$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 [] [2023-12-23 21:23:26,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:23:30,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:23:34,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:23:38,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:23:42,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:23:46,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:23:50,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:23:54,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:23:58,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:24:02,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 21:24:02,052 INFO L93 Difference]: Finished difference Result 250 states and 342 transitions. [2023-12-23 21:24:02,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-23 21:24:02,057 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 3 states have call successors, (25), 3 states have call predecessors, (25), 7 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 110 [2023-12-23 21:24:02,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 21:24:02,059 INFO L225 Difference]: With dead ends: 250 [2023-12-23 21:24:02,059 INFO L226 Difference]: Without dead ends: 179 [2023-12-23 21:24:02,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 208 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=313, Invalid=743, Unknown=0, NotChecked=0, Total=1056 [2023-12-23 21:24:02,060 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 249 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 85 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.8s IncrementalHoareTripleChecker+Time [2023-12-23 21:24:02,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 297 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 352 Invalid, 11 Unknown, 0 Unchecked, 50.8s Time] [2023-12-23 21:24:02,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-12-23 21:24:02,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 151. [2023-12-23 21:24:02,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 101 states have (on average 1.2574257425742574) internal successors, (127), 103 states have internal predecessors, (127), 38 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-23 21:24:02,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 203 transitions. [2023-12-23 21:24:02,087 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 203 transitions. Word has length 110 [2023-12-23 21:24:02,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 21:24:02,087 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 203 transitions. [2023-12-23 21:24:02,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 3 states have call successors, (25), 3 states have call predecessors, (25), 7 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-12-23 21:24:02,087 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 203 transitions. [2023-12-23 21:24:02,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-23 21:24:02,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:24:02,088 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 21:24:02,113 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 (6)] Forceful destruction successful, exit code 0 [2023-12-23 21:24:02,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 21:24:02,308 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:24:02,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:24:02,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1465731204, now seen corresponding path program 1 times [2023-12-23 21:24:02,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:24:02,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751304279] [2023-12-23 21:24:02,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:24:02,309 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 21:24:02,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:24:02,310 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 21:24:02,312 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 (7)] Waiting until timeout for monitored process [2023-12-23 21:24:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:24:03,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 21:24:03,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:24:06,266 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-23 21:24:06,266 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 21:24:08,590 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-23 21:24:08,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 21:24:08,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751304279] [2023-12-23 21:24:08,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751304279] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-23 21:24:08,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 21:24:08,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-12-23 21:24:08,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112494734] [2023-12-23 21:24:08,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 21:24:08,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 21:24:08,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 21:24:08,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 21:24:08,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-23 21:24:08,592 INFO L87 Difference]: Start difference. First operand 151 states and 203 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-23 21:24:13,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-23 21:24:20,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-23 21:24:24,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-23 21:24:28,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:24:32,808 WARN L539 Checker$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 [1] [2023-12-23 21:24:36,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-23 21:24:37,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 21:24:37,370 INFO L93 Difference]: Finished difference Result 329 states and 448 transitions. [2023-12-23 21:24:37,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 21:24:37,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 110 [2023-12-23 21:24:37,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 21:24:37,374 INFO L225 Difference]: With dead ends: 329 [2023-12-23 21:24:37,374 INFO L226 Difference]: Without dead ends: 193 [2023-12-23 21:24:37,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-23 21:24:37,375 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 40 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.4s IncrementalHoareTripleChecker+Time [2023-12-23 21:24:37,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 222 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 6 Unknown, 0 Unchecked, 28.4s Time] [2023-12-23 21:24:37,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-12-23 21:24:37,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 169. [2023-12-23 21:24:37,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 119 states have (on average 1.2773109243697478) internal successors, (152), 121 states have internal predecessors, (152), 38 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-23 21:24:37,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 228 transitions. [2023-12-23 21:24:37,391 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 228 transitions. Word has length 110 [2023-12-23 21:24:37,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 21:24:37,391 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 228 transitions. [2023-12-23 21:24:37,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-23 21:24:37,392 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 228 transitions. [2023-12-23 21:24:37,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-23 21:24:37,392 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:24:37,393 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 21:24:37,413 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 (7)] Forceful destruction successful, exit code 0 [2023-12-23 21:24:37,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 21:24:37,594 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:24:37,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:24:37,594 INFO L85 PathProgramCache]: Analyzing trace with hash -490756531, now seen corresponding path program 1 times [2023-12-23 21:24:37,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:24:37,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422411018] [2023-12-23 21:24:37,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:24:37,595 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 21:24:37,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:24:37,596 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 21:24:37,598 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 (8)] Waiting until timeout for monitored process [2023-12-23 21:24:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:24:38,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 21:24:38,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:24:41,807 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-23 21:24:41,808 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 21:24:44,269 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-23 21:24:44,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 21:24:44,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422411018] [2023-12-23 21:24:44,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422411018] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 21:24:44,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 21:24:44,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-23 21:24:44,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358099579] [2023-12-23 21:24:44,269 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 21:24:44,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-23 21:24:44,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 21:24:44,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-23 21:24:44,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-23 21:24:44,271 INFO L87 Difference]: Start difference. First operand 169 states and 228 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) [2023-12-23 21:24:52,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:24:56,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:25:00,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:25:04,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:25:08,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:25:15,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:25:19,832 WARN L539 Checker$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 [] [2023-12-23 21:25:23,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:25:27,855 WARN L539 Checker$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 [] [2023-12-23 21:25:31,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:25:35,876 WARN L539 Checker$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 [] [2023-12-23 21:25:39,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:25:43,890 WARN L539 Checker$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 [] [2023-12-23 21:25:47,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:25:51,979 WARN L539 Checker$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 [] [2023-12-23 21:25:56,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:26:00,019 WARN L539 Checker$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 [] [2023-12-23 21:26:04,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:26:08,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:26:12,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:26:16,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:26:20,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:26:24,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:26:32,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:26:36,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:26:40,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:26:46,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:26:48,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 21:26:48,096 INFO L93 Difference]: Finished difference Result 609 states and 819 transitions. [2023-12-23 21:26:48,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-23 21:26:48,097 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) Word has length 111 [2023-12-23 21:26:48,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 21:26:48,099 INFO L225 Difference]: With dead ends: 609 [2023-12-23 21:26:48,099 INFO L226 Difference]: Without dead ends: 455 [2023-12-23 21:26:48,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=238, Invalid=574, Unknown=0, NotChecked=0, Total=812 [2023-12-23 21:26:48,101 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 404 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 105 mSolverCounterUnsat, 26 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 119.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 26 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 121.4s IncrementalHoareTripleChecker+Time [2023-12-23 21:26:48,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 385 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 413 Invalid, 26 Unknown, 0 Unchecked, 121.4s Time] [2023-12-23 21:26:48,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-12-23 21:26:48,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 196. [2023-12-23 21:26:48,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 148 states have internal predecessors, (191), 38 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-23 21:26:48,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 267 transitions. [2023-12-23 21:26:48,147 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 267 transitions. Word has length 111 [2023-12-23 21:26:48,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 21:26:48,147 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 267 transitions. [2023-12-23 21:26:48,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) [2023-12-23 21:26:48,147 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 267 transitions. [2023-12-23 21:26:48,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-23 21:26:48,148 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:26:48,148 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 21:26:48,173 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 (8)] Forceful destruction successful, exit code 0 [2023-12-23 21:26:48,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 21:26:48,349 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:26:48,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:26:48,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1951344513, now seen corresponding path program 1 times [2023-12-23 21:26:48,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:26:48,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34414840] [2023-12-23 21:26:48,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:26:48,350 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 21:26:48,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:26:48,354 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 21:26:48,354 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 (9)] Waiting until timeout for monitored process [2023-12-23 21:26:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:26:49,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 21:26:49,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:26:51,965 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-23 21:26:51,965 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 21:26:51,965 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 21:26:51,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34414840] [2023-12-23 21:26:51,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34414840] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 21:26:51,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 21:26:51,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 21:26:51,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029970030] [2023-12-23 21:26:51,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 21:26:51,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 21:26:51,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 21:26:51,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 21:26:51,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 21:26:51,967 INFO L87 Difference]: Start difference. First operand 196 states and 267 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-23 21:26:57,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:26:57,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 21:26:57,849 INFO L93 Difference]: Finished difference Result 377 states and 514 transitions. [2023-12-23 21:26:57,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 21:26:57,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 112 [2023-12-23 21:26:57,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 21:26:57,851 INFO L225 Difference]: With dead ends: 377 [2023-12-23 21:26:57,851 INFO L226 Difference]: Without dead ends: 196 [2023-12-23 21:26:57,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 21:26:57,852 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-12-23 21:26:57,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 86 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2023-12-23 21:26:57,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-12-23 21:26:57,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2023-12-23 21:26:57,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 146 states have (on average 1.2945205479452055) internal successors, (189), 148 states have internal predecessors, (189), 38 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-23 21:26:57,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 265 transitions. [2023-12-23 21:26:57,866 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 265 transitions. Word has length 112 [2023-12-23 21:26:57,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 21:26:57,866 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 265 transitions. [2023-12-23 21:26:57,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-23 21:26:57,866 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 265 transitions. [2023-12-23 21:26:57,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-23 21:26:57,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:26:57,867 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 21:26:57,886 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 (9)] Forceful destruction successful, exit code 0 [2023-12-23 21:26:58,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 21:26:58,074 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:26:58,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:26:58,074 INFO L85 PathProgramCache]: Analyzing trace with hash -590559029, now seen corresponding path program 1 times [2023-12-23 21:26:58,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:26:58,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671461039] [2023-12-23 21:26:58,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:26:58,075 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 21:26:58,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:26:58,076 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 21:26:58,083 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 (10)] Waiting until timeout for monitored process [2023-12-23 21:26:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:26:58,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 21:26:58,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:27:02,407 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 254 proven. 48 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2023-12-23 21:27:02,407 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 21:27:04,215 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-23 21:27:04,215 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 21:27:04,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671461039] [2023-12-23 21:27:04,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671461039] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 21:27:04,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 21:27:04,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 12 [2023-12-23 21:27:04,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709098870] [2023-12-23 21:27:04,216 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 21:27:04,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-23 21:27:04,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 21:27:04,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-23 21:27:04,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-23 21:27:04,217 INFO L87 Difference]: Start difference. First operand 196 states and 265 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-12-23 21:27:12,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:27:16,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:27:20,684 WARN L539 Checker$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 [] [2023-12-23 21:27:24,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:27:28,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:27:30,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 21:27:30,049 INFO L93 Difference]: Finished difference Result 360 states and 479 transitions. [2023-12-23 21:27:30,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-23 21:27:30,053 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 112 [2023-12-23 21:27:30,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 21:27:30,054 INFO L225 Difference]: With dead ends: 360 [2023-12-23 21:27:30,054 INFO L226 Difference]: Without dead ends: 179 [2023-12-23 21:27:30,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 213 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2023-12-23 21:27:30,055 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 191 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 58 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2023-12-23 21:27:30,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 207 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 175 Invalid, 5 Unknown, 0 Unchecked, 24.4s Time] [2023-12-23 21:27:30,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-12-23 21:27:30,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 170. [2023-12-23 21:27:30,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 120 states have (on average 1.1916666666666667) internal successors, (143), 122 states have internal predecessors, (143), 38 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-23 21:27:30,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 219 transitions. [2023-12-23 21:27:30,070 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 219 transitions. Word has length 112 [2023-12-23 21:27:30,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 21:27:30,070 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 219 transitions. [2023-12-23 21:27:30,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-12-23 21:27:30,071 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 219 transitions. [2023-12-23 21:27:30,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-23 21:27:30,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:27:30,071 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 21:27:30,091 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 (10)] Forceful destruction successful, exit code 0 [2023-12-23 21:27:30,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 21:27:30,288 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:27:30,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:27:30,288 INFO L85 PathProgramCache]: Analyzing trace with hash 352517302, now seen corresponding path program 1 times [2023-12-23 21:27:30,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:27:30,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793765300] [2023-12-23 21:27:30,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:27:30,288 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 21:27:30,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:27:30,289 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 21:27:30,290 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 (11)] Waiting until timeout for monitored process [2023-12-23 21:27:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:27:31,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-23 21:27:31,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:27:44,960 WARN L293 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:27:53,839 WARN L293 SmtUtils]: Spent 8.88s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:28:00,046 WARN L293 SmtUtils]: Spent 6.21s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:28:08,927 WARN L293 SmtUtils]: Spent 8.88s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:28:18,565 WARN L293 SmtUtils]: Spent 9.64s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:28:26,987 WARN L293 SmtUtils]: Spent 8.42s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:28:31,222 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ zero_extend 24) c_~var_1_17~0))) (and (= c_~var_1_7~0 c_~var_1_5~0) (bvsge .cse0 (_ bv1 32)) (bvsle ((_ zero_extend 24) c_~var_1_18~0) (_ bv0 32)) (bvsle .cse0 (_ bv1 32)) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_12~0))) (fp.eq (fp.div c_currentRoundingMode .cse1 c_~var_1_9~0) .cse1)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2023-12-23 21:28:35,658 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ zero_extend 24) c_~var_1_17~0))) (and (= c_~var_1_7~0 c_~var_1_5~0) (bvsge .cse0 (_ bv1 32)) (bvsle ((_ zero_extend 24) c_~var_1_18~0) (_ bv0 32)) (bvsle .cse0 (_ bv1 32)) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_12~0))) (fp.eq (fp.div c_currentRoundingMode .cse1 c_~var_1_9~0) .cse1)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2023-12-23 21:28:44,182 WARN L293 SmtUtils]: Spent 8.52s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:28:53,067 WARN L293 SmtUtils]: Spent 8.88s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:28:58,500 WARN L293 SmtUtils]: Spent 5.43s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:29:07,396 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:29:17,054 WARN L293 SmtUtils]: Spent 9.66s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:29:25,436 WARN L293 SmtUtils]: Spent 8.38s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:29:33,925 WARN L293 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:29:42,815 WARN L293 SmtUtils]: Spent 8.89s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:29:51,683 WARN L293 SmtUtils]: Spent 8.87s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:30:00,027 WARN L293 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:30:09,719 WARN L293 SmtUtils]: Spent 9.69s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:30:18,599 WARN L293 SmtUtils]: Spent 8.88s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:30:26,709 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:30:35,609 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:30:44,101 WARN L293 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:30:52,996 WARN L293 SmtUtils]: Spent 8.89s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:31:01,940 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:31:10,830 WARN L293 SmtUtils]: Spent 8.89s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:31:20,523 WARN L293 SmtUtils]: Spent 9.69s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:31:29,413 WARN L293 SmtUtils]: Spent 8.89s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:31:38,310 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:31:47,230 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:31:51,473 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ zero_extend 16) c_~var_1_5~0))) (let ((.cse1 (bvugt c_~var_1_29~0 .cse2)) (.cse0 ((_ zero_extend 24) c_~var_1_17~0))) (and (= c_~var_1_7~0 c_~var_1_5~0) (bvsge .cse0 (_ bv1 32)) (or .cse1 (not (bvult .cse2 (_ bv4 32)))) (bvsle ((_ zero_extend 24) c_~var_1_18~0) (_ bv0 32)) (or (not .cse1) (not (bvult c_~var_1_29~0 (_ bv4 32)))) (bvsle .cse0 (_ bv1 32)) (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_12~0))) (fp.eq (fp.div c_currentRoundingMode .cse3 c_~var_1_9~0) .cse3)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2023-12-23 21:31:55,940 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ zero_extend 16) c_~var_1_5~0))) (let ((.cse1 (bvugt c_~var_1_29~0 .cse2)) (.cse0 ((_ zero_extend 24) c_~var_1_17~0))) (and (= c_~var_1_7~0 c_~var_1_5~0) (bvsge .cse0 (_ bv1 32)) (or .cse1 (not (bvult .cse2 (_ bv4 32)))) (bvsle ((_ zero_extend 24) c_~var_1_18~0) (_ bv0 32)) (or (not .cse1) (not (bvult c_~var_1_29~0 (_ bv4 32)))) (bvsle .cse0 (_ bv1 32)) (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_12~0))) (fp.eq (fp.div c_currentRoundingMode .cse3 c_~var_1_9~0) .cse3)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2023-12-23 21:32:04,908 WARN L293 SmtUtils]: Spent 8.96s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:32:13,837 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:32:22,361 WARN L293 SmtUtils]: Spent 8.52s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:32:31,277 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:32:40,183 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:32:49,117 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:32:58,049 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:33:06,985 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:33:15,918 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:33:24,834 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:33:33,746 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:33:41,685 WARN L293 SmtUtils]: Spent 7.94s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:33:50,623 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:33:59,523 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:34:08,431 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:34:17,363 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:34:21,618 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ zero_extend 16) c_~var_1_5~0))) (let ((.cse4 (bvugt c_~var_1_29~0 .cse5)) (.cse3 ((_ zero_extend 24) c_~var_1_17~0))) (and (= c_~var_1_7~0 c_~var_1_5~0) (= c_~var_1_31~0 c_~var_1_17~0) (let ((.cse2 ((_ sign_extend 24) c_~var_1_20~0)) (.cse1 ((_ sign_extend 24) c_~var_1_21~0))) (let ((.cse0 (bvsgt .cse2 .cse1))) (or (and (not .cse0) (= ((_ extract 7 0) .cse1) c_~var_1_19~0)) (and (= ((_ extract 7 0) .cse2) c_~var_1_19~0) .cse0)))) (bvsge .cse3 (_ bv1 32)) (or .cse4 (not (bvult .cse5 (_ bv4 32)))) (bvsle ((_ zero_extend 24) c_~var_1_18~0) (_ bv0 32)) (= ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_14~0) c_~var_1_30~0) (or (not .cse4) (not (bvult c_~var_1_29~0 (_ bv4 32)))) (bvsle .cse3 (_ bv1 32)) (let ((.cse6 ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_12~0))) (fp.eq (fp.div c_currentRoundingMode .cse6 c_~var_1_9~0) .cse6)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2023-12-23 21:34:26,095 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ zero_extend 16) c_~var_1_5~0))) (let ((.cse4 (bvugt c_~var_1_29~0 .cse5)) (.cse3 ((_ zero_extend 24) c_~var_1_17~0))) (and (= c_~var_1_7~0 c_~var_1_5~0) (= c_~var_1_31~0 c_~var_1_17~0) (let ((.cse2 ((_ sign_extend 24) c_~var_1_20~0)) (.cse1 ((_ sign_extend 24) c_~var_1_21~0))) (let ((.cse0 (bvsgt .cse2 .cse1))) (or (and (not .cse0) (= ((_ extract 7 0) .cse1) c_~var_1_19~0)) (and (= ((_ extract 7 0) .cse2) c_~var_1_19~0) .cse0)))) (bvsge .cse3 (_ bv1 32)) (or .cse4 (not (bvult .cse5 (_ bv4 32)))) (bvsle ((_ zero_extend 24) c_~var_1_18~0) (_ bv0 32)) (= ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_14~0) c_~var_1_30~0) (or (not .cse4) (not (bvult c_~var_1_29~0 (_ bv4 32)))) (bvsle .cse3 (_ bv1 32)) (let ((.cse6 ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_12~0))) (fp.eq (fp.div c_currentRoundingMode .cse6 c_~var_1_9~0) .cse6)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2023-12-23 21:34:35,014 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:34:43,911 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:34:52,427 WARN L293 SmtUtils]: Spent 8.52s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:35:01,330 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:35:10,245 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:35:19,178 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:35:28,086 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:35:37,008 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:35:45,938 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:35:54,877 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:36:03,789 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-23 21:36:07,166 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 (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 21:36:07,196 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 [2023-12-23 21:36:08,189 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 (11)] Forceful destruction successful, exit code 0 [2023-12-23 21:36:08,397 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-23 21:36:08,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-23 21:36:08,518 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 21:36:08,518 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 114 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-23 21:36:08,521 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 21:36:08,523 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 21:36:08,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 09:36:08 BoogieIcfgContainer [2023-12-23 21:36:08,526 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 21:36:08,528 INFO L158 Benchmark]: Toolchain (without parser) took 887421.79ms. Allocated memory is still 356.5MB. Free memory was 315.8MB in the beginning and 237.5MB in the end (delta: 78.3MB). Peak memory consumption was 79.0MB. Max. memory is 8.0GB. [2023-12-23 21:36:08,528 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 194.0MB. Free memory is still 141.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 21:36:08,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.99ms. Allocated memory is still 356.5MB. Free memory was 315.8MB in the beginning and 298.7MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-23 21:36:08,529 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.92ms. Allocated memory is still 356.5MB. Free memory was 298.7MB in the beginning and 296.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 21:36:08,529 INFO L158 Benchmark]: Boogie Preprocessor took 72.56ms. Allocated memory is still 356.5MB. Free memory was 296.1MB in the beginning and 291.4MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 21:36:08,529 INFO L158 Benchmark]: RCFGBuilder took 14731.95ms. Allocated memory is still 356.5MB. Free memory was 291.4MB in the beginning and 263.6MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-23 21:36:08,529 INFO L158 Benchmark]: TraceAbstraction took 872302.35ms. Allocated memory is still 356.5MB. Free memory was 263.1MB in the beginning and 237.5MB in the end (delta: 25.5MB). Peak memory consumption was 26.6MB. Max. memory is 8.0GB. [2023-12-23 21:36:08,530 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 141.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 274.99ms. Allocated memory is still 356.5MB. Free memory was 315.8MB in the beginning and 298.7MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.92ms. Allocated memory is still 356.5MB. Free memory was 298.7MB in the beginning and 296.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.56ms. Allocated memory is still 356.5MB. Free memory was 296.1MB in the beginning and 291.4MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 14731.95ms. Allocated memory is still 356.5MB. Free memory was 291.4MB in the beginning and 263.6MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 872302.35ms. Allocated memory is still 356.5MB. Free memory was 263.1MB in the beginning and 237.5MB in the end (delta: 25.5MB). Peak memory consumption was 26.6MB. 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 114 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 872.2s, OverallIterations: 10, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 304.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 62 mSolverCounterUnknown, 1395 SdHoareTripleChecker+Valid, 296.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1364 mSDsluCounter, 1813 SdHoareTripleChecker+Invalid, 288.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1070 mSDsCounter, 300 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1383 IncrementalHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 300 mSolverCounterUnsat, 743 mSDtfsCounter, 1383 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1812 GetRequests, 1693 SyntacticMatches, 4 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 15.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=196occurred in iteration=7, InterpolantAutomatonStates: 99, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 333 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 6.7s SatisfiabilityAnalysisTime, 40.0s InterpolantComputationTime, 992 NumberOfCodeBlocks, 992 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1747 ConstructedInterpolants, 11 QuantifiedInterpolants, 6212 SizeOfPredicates, 25 NumberOfNonLiveVariables, 1874 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 16 InterpolantComputations, 3 PerfectInterpolantSequences, 7203/7680 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