/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/combinations/Problem05_label49+token_ring.08.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 22:17:06,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 22:17:06,279 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-21 22:17:06,282 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 22:17:06,283 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 22:17:06,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 22:17:06,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 22:17:06,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 22:17:06,305 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 22:17:06,308 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 22:17:06,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 22:17:06,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 22:17:06,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 22:17:06,310 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 22:17:06,310 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 22:17:06,310 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 22:17:06,311 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 22:17:06,311 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 22:17:06,311 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 22:17:06,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 22:17:06,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 22:17:06,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 22:17:06,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 22:17:06,312 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 22:17:06,313 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 22:17:06,313 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 22:17:06,313 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 22:17:06,313 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 22:17:06,313 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 22:17:06,313 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 22:17:06,314 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 22:17:06,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 22:17:06,314 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 22:17:06,314 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 22:17:06,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 22:17:06,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 22:17:06,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 22:17:06,315 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 22:17:06,315 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 22:17:06,315 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 22:17:06,315 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 22:17:06,315 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 22:17:06,315 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 22:17:06,315 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 22:17:06,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 22:17:06,316 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 22:17:06,316 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 22:17:06,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 22:17:06,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 22:17:06,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 22:17:06,533 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 22:17:06,533 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 22:17:06,534 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.08.cil-2.c [2023-12-21 22:17:07,584 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 22:17:08,122 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 22:17:08,122 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.08.cil-2.c [2023-12-21 22:17:08,175 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13218ce74/5f8f8ca6407d4b1b8bbdfaf410f15de6/FLAG403934a54 [2023-12-21 22:17:08,189 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13218ce74/5f8f8ca6407d4b1b8bbdfaf410f15de6 [2023-12-21 22:17:08,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 22:17:08,193 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 22:17:08,194 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 22:17:08,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 22:17:08,198 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 22:17:08,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:17:08" (1/1) ... [2023-12-21 22:17:08,199 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@348946aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:08, skipping insertion in model container [2023-12-21 22:17:08,199 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:17:08" (1/1) ... [2023-12-21 22:17:08,341 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 22:17:09,608 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.08.cil-2.c[380593,380606] [2023-12-21 22:17:09,625 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.08.cil-2.c[383339,383352] [2023-12-21 22:17:09,806 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 22:17:09,820 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 22:17:10,360 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.08.cil-2.c[380593,380606] [2023-12-21 22:17:10,369 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.08.cil-2.c[383339,383352] [2023-12-21 22:17:10,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 22:17:10,431 INFO L206 MainTranslator]: Completed translation [2023-12-21 22:17:10,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:10 WrapperNode [2023-12-21 22:17:10,432 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 22:17:10,432 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 22:17:10,433 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 22:17:10,433 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 22:17:10,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:10" (1/1) ... [2023-12-21 22:17:10,504 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:10" (1/1) ... [2023-12-21 22:17:10,819 INFO L138 Inliner]: procedures = 61, calls = 66, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 12964 [2023-12-21 22:17:10,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 22:17:10,820 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 22:17:10,820 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 22:17:10,820 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 22:17:10,828 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:10" (1/1) ... [2023-12-21 22:17:10,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:10" (1/1) ... [2023-12-21 22:17:10,862 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:10" (1/1) ... [2023-12-21 22:17:10,913 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]. [2023-12-21 22:17:10,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:10" (1/1) ... [2023-12-21 22:17:10,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:10" (1/1) ... [2023-12-21 22:17:11,054 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:10" (1/1) ... [2023-12-21 22:17:11,099 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:10" (1/1) ... [2023-12-21 22:17:11,125 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:10" (1/1) ... [2023-12-21 22:17:11,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:10" (1/1) ... [2023-12-21 22:17:11,192 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 22:17:11,193 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 22:17:11,194 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 22:17:11,194 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 22:17:11,194 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:10" (1/1) ... [2023-12-21 22:17:11,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 22:17:11,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 22:17:11,257 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) [2023-12-21 22:17:11,278 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 [2023-12-21 22:17:11,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 22:17:11,282 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-21 22:17:11,282 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-21 22:17:11,282 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-21 22:17:11,282 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-21 22:17:11,282 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-21 22:17:11,282 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-21 22:17:11,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 22:17:11,283 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-21 22:17:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-21 22:17:11,283 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-21 22:17:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-21 22:17:11,283 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-21 22:17:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-21 22:17:11,283 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-21 22:17:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-21 22:17:11,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 22:17:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 22:17:11,399 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 22:17:11,401 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 22:17:18,531 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 22:17:18,607 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 22:17:18,608 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-12-21 22:17:18,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:17:18 BoogieIcfgContainer [2023-12-21 22:17:18,608 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 22:17:18,610 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 22:17:18,610 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 22:17:18,612 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 22:17:18,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 10:17:08" (1/3) ... [2023-12-21 22:17:18,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63681fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:17:18, skipping insertion in model container [2023-12-21 22:17:18,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:10" (2/3) ... [2023-12-21 22:17:18,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63681fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:17:18, skipping insertion in model container [2023-12-21 22:17:18,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:17:18" (3/3) ... [2023-12-21 22:17:18,614 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.08.cil-2.c [2023-12-21 22:17:18,625 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 22:17:18,625 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-21 22:17:18,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 22:17:18,696 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;@6663460e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 22:17:18,696 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-21 22:17:18,705 INFO L276 IsEmpty]: Start isEmpty. Operand has 2387 states, 2353 states have (on average 1.87972800679983) internal successors, (4423), 2358 states have internal predecessors, (4423), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-21 22:17:18,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:18,716 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:18,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:18,717 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:18,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:18,720 INFO L85 PathProgramCache]: Analyzing trace with hash 947459073, now seen corresponding path program 1 times [2023-12-21 22:17:18,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:18,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667989369] [2023-12-21 22:17:18,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:18,730 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 [2023-12-21 22:17:18,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:18,732 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) [2023-12-21 22:17:18,742 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 [2023-12-21 22:17:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:18,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:17:18,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:18,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:18,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:18,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:18,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [667989369] [2023-12-21 22:17:18,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [667989369] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:18,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:18,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:17:18,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473181785] [2023-12-21 22:17:18,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:18,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:17:18,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:18,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:17:18,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:18,948 INFO L87 Difference]: Start difference. First operand has 2387 states, 2353 states have (on average 1.87972800679983) internal successors, (4423), 2358 states have internal predecessors, (4423), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:19,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:19,078 INFO L93 Difference]: Finished difference Result 4769 states and 8933 transitions. [2023-12-21 22:17:19,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:17:19,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:19,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:19,094 INFO L225 Difference]: With dead ends: 4769 [2023-12-21 22:17:19,095 INFO L226 Difference]: Without dead ends: 2382 [2023-12-21 22:17:19,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:19,103 INFO L413 NwaCegarLoop]: 4347 mSDtfsCounter, 416 mSDsluCounter, 3959 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 8306 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:19,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 8306 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 22:17:19,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2023-12-21 22:17:19,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 2382. [2023-12-21 22:17:19,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2350 states have (on average 1.8429787234042554) internal successors, (4331), 2353 states have internal predecessors, (4331), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-21 22:17:19,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 4377 transitions. [2023-12-21 22:17:19,200 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 4377 transitions. Word has length 122 [2023-12-21 22:17:19,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:19,201 INFO L495 AbstractCegarLoop]: Abstraction has 2382 states and 4377 transitions. [2023-12-21 22:17:19,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:19,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 4377 transitions. [2023-12-21 22:17:19,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:19,203 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:19,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:19,213 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 [2023-12-21 22:17:19,409 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 [2023-12-21 22:17:19,409 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:19,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:19,410 INFO L85 PathProgramCache]: Analyzing trace with hash -981473153, now seen corresponding path program 1 times [2023-12-21 22:17:19,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:19,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295658520] [2023-12-21 22:17:19,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:19,411 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 [2023-12-21 22:17:19,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:19,412 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) [2023-12-21 22:17:19,427 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 [2023-12-21 22:17:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:19,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:19,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:19,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:19,624 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:19,624 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:19,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295658520] [2023-12-21 22:17:19,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [295658520] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:19,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:19,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:19,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217882248] [2023-12-21 22:17:19,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:19,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:19,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:19,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:19,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:19,627 INFO L87 Difference]: Start difference. First operand 2382 states and 4377 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:20,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:20,207 INFO L93 Difference]: Finished difference Result 2909 states and 5234 transitions. [2023-12-21 22:17:20,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 22:17:20,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:20,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:20,217 INFO L225 Difference]: With dead ends: 2909 [2023-12-21 22:17:20,217 INFO L226 Difference]: Without dead ends: 2662 [2023-12-21 22:17:20,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:20,220 INFO L413 NwaCegarLoop]: 4265 mSDtfsCounter, 4740 mSDsluCounter, 8685 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4756 SdHoareTripleChecker+Valid, 12950 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:20,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4756 Valid, 12950 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 22:17:20,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2023-12-21 22:17:20,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 2639. [2023-12-21 22:17:20,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2583 states have (on average 1.8246225319396052) internal successors, (4713), 2587 states have internal predecessors, (4713), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-21 22:17:20,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 4794 transitions. [2023-12-21 22:17:20,273 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 4794 transitions. Word has length 122 [2023-12-21 22:17:20,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:20,274 INFO L495 AbstractCegarLoop]: Abstraction has 2639 states and 4794 transitions. [2023-12-21 22:17:20,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:20,274 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 4794 transitions. [2023-12-21 22:17:20,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:20,275 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:20,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:20,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:20,480 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 [2023-12-21 22:17:20,480 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:20,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:20,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1257398465, now seen corresponding path program 1 times [2023-12-21 22:17:20,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:20,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728423423] [2023-12-21 22:17:20,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:20,482 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 [2023-12-21 22:17:20,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:20,482 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) [2023-12-21 22:17:20,487 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 [2023-12-21 22:17:20,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:20,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:20,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:20,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:20,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:20,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:20,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728423423] [2023-12-21 22:17:20,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [728423423] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:20,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:20,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:20,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416477968] [2023-12-21 22:17:20,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:20,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:20,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:20,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:20,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:20,676 INFO L87 Difference]: Start difference. First operand 2639 states and 4794 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:21,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:21,056 INFO L93 Difference]: Finished difference Result 3143 states and 5613 transitions. [2023-12-21 22:17:21,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:21,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:21,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:21,065 INFO L225 Difference]: With dead ends: 3143 [2023-12-21 22:17:21,065 INFO L226 Difference]: Without dead ends: 2639 [2023-12-21 22:17:21,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:21,069 INFO L413 NwaCegarLoop]: 4221 mSDtfsCounter, 4512 mSDsluCounter, 8326 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4528 SdHoareTripleChecker+Valid, 12547 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:21,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4528 Valid, 12547 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:21,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2023-12-21 22:17:21,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2639. [2023-12-21 22:17:21,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2583 states have (on average 1.821912504839334) internal successors, (4706), 2587 states have internal predecessors, (4706), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-21 22:17:21,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 4787 transitions. [2023-12-21 22:17:21,122 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 4787 transitions. Word has length 122 [2023-12-21 22:17:21,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:21,123 INFO L495 AbstractCegarLoop]: Abstraction has 2639 states and 4787 transitions. [2023-12-21 22:17:21,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:21,123 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 4787 transitions. [2023-12-21 22:17:21,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:21,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:21,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:21,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:21,328 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 [2023-12-21 22:17:21,329 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:21,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:21,330 INFO L85 PathProgramCache]: Analyzing trace with hash -712109953, now seen corresponding path program 1 times [2023-12-21 22:17:21,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:21,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [806427145] [2023-12-21 22:17:21,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:21,330 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 [2023-12-21 22:17:21,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:21,331 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) [2023-12-21 22:17:21,333 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 [2023-12-21 22:17:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:21,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:21,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:21,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:21,495 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:21,496 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:21,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [806427145] [2023-12-21 22:17:21,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [806427145] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:21,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:21,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:21,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287848468] [2023-12-21 22:17:21,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:21,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:21,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:21,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:21,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:21,503 INFO L87 Difference]: Start difference. First operand 2639 states and 4787 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:21,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:21,842 INFO L93 Difference]: Finished difference Result 3143 states and 5599 transitions. [2023-12-21 22:17:21,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:21,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:21,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:21,851 INFO L225 Difference]: With dead ends: 3143 [2023-12-21 22:17:21,851 INFO L226 Difference]: Without dead ends: 2639 [2023-12-21 22:17:21,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:21,854 INFO L413 NwaCegarLoop]: 4218 mSDtfsCounter, 4506 mSDsluCounter, 8322 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4522 SdHoareTripleChecker+Valid, 12540 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:21,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4522 Valid, 12540 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:21,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2023-12-21 22:17:21,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2639. [2023-12-21 22:17:21,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2583 states have (on average 1.8192024777390632) internal successors, (4699), 2587 states have internal predecessors, (4699), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-21 22:17:21,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 4780 transitions. [2023-12-21 22:17:21,909 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 4780 transitions. Word has length 122 [2023-12-21 22:17:21,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:21,910 INFO L495 AbstractCegarLoop]: Abstraction has 2639 states and 4780 transitions. [2023-12-21 22:17:21,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:21,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 4780 transitions. [2023-12-21 22:17:21,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:21,911 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:21,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:21,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:22,117 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 [2023-12-21 22:17:22,118 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:22,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:22,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1549463297, now seen corresponding path program 1 times [2023-12-21 22:17:22,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:22,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225183986] [2023-12-21 22:17:22,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:22,119 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 [2023-12-21 22:17:22,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:22,120 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) [2023-12-21 22:17:22,151 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 [2023-12-21 22:17:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:22,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:22,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:22,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:22,266 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:22,266 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:22,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225183986] [2023-12-21 22:17:22,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225183986] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:22,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:22,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:22,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967380711] [2023-12-21 22:17:22,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:22,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:22,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:22,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:22,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:22,268 INFO L87 Difference]: Start difference. First operand 2639 states and 4780 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:22,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:22,605 INFO L93 Difference]: Finished difference Result 3143 states and 5585 transitions. [2023-12-21 22:17:22,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:22,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:22,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:22,614 INFO L225 Difference]: With dead ends: 3143 [2023-12-21 22:17:22,615 INFO L226 Difference]: Without dead ends: 2639 [2023-12-21 22:17:22,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:22,617 INFO L413 NwaCegarLoop]: 4215 mSDtfsCounter, 4500 mSDsluCounter, 8318 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4516 SdHoareTripleChecker+Valid, 12533 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:22,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4516 Valid, 12533 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:22,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2023-12-21 22:17:22,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2639. [2023-12-21 22:17:22,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2583 states have (on average 1.816492450638792) internal successors, (4692), 2587 states have internal predecessors, (4692), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-21 22:17:22,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 4773 transitions. [2023-12-21 22:17:22,760 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 4773 transitions. Word has length 122 [2023-12-21 22:17:22,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:22,760 INFO L495 AbstractCegarLoop]: Abstraction has 2639 states and 4773 transitions. [2023-12-21 22:17:22,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:22,761 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 4773 transitions. [2023-12-21 22:17:22,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:22,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:22,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:22,768 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 (6)] Ended with exit code 0 [2023-12-21 22:17:22,966 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 [2023-12-21 22:17:22,966 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:22,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:22,969 INFO L85 PathProgramCache]: Analyzing trace with hash -389631935, now seen corresponding path program 1 times [2023-12-21 22:17:22,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:22,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216635392] [2023-12-21 22:17:22,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:22,969 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 [2023-12-21 22:17:22,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:22,970 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) [2023-12-21 22:17:23,002 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 [2023-12-21 22:17:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:23,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:23,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:23,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:23,123 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:23,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:23,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216635392] [2023-12-21 22:17:23,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216635392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:23,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:23,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:23,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10939967] [2023-12-21 22:17:23,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:23,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:23,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:23,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:23,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:23,125 INFO L87 Difference]: Start difference. First operand 2639 states and 4773 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:23,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:23,454 INFO L93 Difference]: Finished difference Result 3143 states and 5571 transitions. [2023-12-21 22:17:23,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:23,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:23,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:23,464 INFO L225 Difference]: With dead ends: 3143 [2023-12-21 22:17:23,464 INFO L226 Difference]: Without dead ends: 2639 [2023-12-21 22:17:23,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:23,468 INFO L413 NwaCegarLoop]: 4212 mSDtfsCounter, 4493 mSDsluCounter, 8314 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4509 SdHoareTripleChecker+Valid, 12526 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:23,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4509 Valid, 12526 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:23,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2023-12-21 22:17:23,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2639. [2023-12-21 22:17:23,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2583 states have (on average 1.8137824235385211) internal successors, (4685), 2587 states have internal predecessors, (4685), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-21 22:17:23,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 4766 transitions. [2023-12-21 22:17:23,530 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 4766 transitions. Word has length 122 [2023-12-21 22:17:23,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:23,531 INFO L495 AbstractCegarLoop]: Abstraction has 2639 states and 4766 transitions. [2023-12-21 22:17:23,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:23,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 4766 transitions. [2023-12-21 22:17:23,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:23,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:23,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:23,540 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 [2023-12-21 22:17:23,737 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 [2023-12-21 22:17:23,738 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:23,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:23,739 INFO L85 PathProgramCache]: Analyzing trace with hash -2085502591, now seen corresponding path program 1 times [2023-12-21 22:17:23,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:23,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832968596] [2023-12-21 22:17:23,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:23,739 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 [2023-12-21 22:17:23,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:23,747 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) [2023-12-21 22:17:23,748 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 [2023-12-21 22:17:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:23,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:23,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:23,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:23,901 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:23,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:23,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832968596] [2023-12-21 22:17:23,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1832968596] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:23,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:23,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:23,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586686864] [2023-12-21 22:17:23,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:23,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:23,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:23,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:23,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:23,903 INFO L87 Difference]: Start difference. First operand 2639 states and 4766 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:24,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:24,224 INFO L93 Difference]: Finished difference Result 3143 states and 5557 transitions. [2023-12-21 22:17:24,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:24,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:24,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:24,248 INFO L225 Difference]: With dead ends: 3143 [2023-12-21 22:17:24,248 INFO L226 Difference]: Without dead ends: 2639 [2023-12-21 22:17:24,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:24,251 INFO L413 NwaCegarLoop]: 4209 mSDtfsCounter, 4487 mSDsluCounter, 8310 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4503 SdHoareTripleChecker+Valid, 12519 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:24,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4503 Valid, 12519 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:24,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2023-12-21 22:17:24,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2639. [2023-12-21 22:17:24,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2583 states have (on average 1.81107239643825) internal successors, (4678), 2587 states have internal predecessors, (4678), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-21 22:17:24,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 4759 transitions. [2023-12-21 22:17:24,297 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 4759 transitions. Word has length 122 [2023-12-21 22:17:24,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:24,298 INFO L495 AbstractCegarLoop]: Abstraction has 2639 states and 4759 transitions. [2023-12-21 22:17:24,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:24,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 4759 transitions. [2023-12-21 22:17:24,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:24,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:24,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:24,306 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 [2023-12-21 22:17:24,506 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 [2023-12-21 22:17:24,507 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:24,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:24,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1031829439, now seen corresponding path program 1 times [2023-12-21 22:17:24,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:24,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216580270] [2023-12-21 22:17:24,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:24,508 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 [2023-12-21 22:17:24,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:24,509 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) [2023-12-21 22:17:24,514 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 [2023-12-21 22:17:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:24,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:24,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:24,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:24,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:24,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:24,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216580270] [2023-12-21 22:17:24,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216580270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:24,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:24,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:24,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378702037] [2023-12-21 22:17:24,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:24,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:24,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:24,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:24,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:24,662 INFO L87 Difference]: Start difference. First operand 2639 states and 4759 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:24,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:24,980 INFO L93 Difference]: Finished difference Result 3143 states and 5543 transitions. [2023-12-21 22:17:24,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:24,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:24,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:25,007 INFO L225 Difference]: With dead ends: 3143 [2023-12-21 22:17:25,008 INFO L226 Difference]: Without dead ends: 2639 [2023-12-21 22:17:25,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:25,013 INFO L413 NwaCegarLoop]: 4206 mSDtfsCounter, 4481 mSDsluCounter, 8306 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4497 SdHoareTripleChecker+Valid, 12512 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:25,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4497 Valid, 12512 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:25,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2023-12-21 22:17:25,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2639. [2023-12-21 22:17:25,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2583 states have (on average 1.8083623693379791) internal successors, (4671), 2587 states have internal predecessors, (4671), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-21 22:17:25,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 4752 transitions. [2023-12-21 22:17:25,066 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 4752 transitions. Word has length 122 [2023-12-21 22:17:25,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:25,066 INFO L495 AbstractCegarLoop]: Abstraction has 2639 states and 4752 transitions. [2023-12-21 22:17:25,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:25,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 4752 transitions. [2023-12-21 22:17:25,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:25,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:25,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:25,074 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 [2023-12-21 22:17:25,272 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 [2023-12-21 22:17:25,273 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:25,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:25,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1552029311, now seen corresponding path program 1 times [2023-12-21 22:17:25,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:25,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769319304] [2023-12-21 22:17:25,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:25,274 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 [2023-12-21 22:17:25,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:25,274 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) [2023-12-21 22:17:25,275 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 [2023-12-21 22:17:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:25,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:25,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:25,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:25,438 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:25,438 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:25,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769319304] [2023-12-21 22:17:25,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769319304] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:25,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:25,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:25,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349489463] [2023-12-21 22:17:25,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:25,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:25,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:25,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:25,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:25,439 INFO L87 Difference]: Start difference. First operand 2639 states and 4752 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:25,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:25,785 INFO L93 Difference]: Finished difference Result 3143 states and 5529 transitions. [2023-12-21 22:17:25,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:25,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:25,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:25,794 INFO L225 Difference]: With dead ends: 3143 [2023-12-21 22:17:25,794 INFO L226 Difference]: Without dead ends: 2639 [2023-12-21 22:17:25,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:25,796 INFO L413 NwaCegarLoop]: 4203 mSDtfsCounter, 4475 mSDsluCounter, 8302 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4491 SdHoareTripleChecker+Valid, 12505 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:25,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4491 Valid, 12505 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:25,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2023-12-21 22:17:25,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2639. [2023-12-21 22:17:25,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2583 states have (on average 1.805652342237708) internal successors, (4664), 2587 states have internal predecessors, (4664), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-21 22:17:25,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 4745 transitions. [2023-12-21 22:17:25,840 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 4745 transitions. Word has length 122 [2023-12-21 22:17:25,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:25,841 INFO L495 AbstractCegarLoop]: Abstraction has 2639 states and 4745 transitions. [2023-12-21 22:17:25,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:25,841 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 4745 transitions. [2023-12-21 22:17:25,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:25,842 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:25,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:25,848 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 [2023-12-21 22:17:26,046 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 [2023-12-21 22:17:26,046 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:26,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:26,047 INFO L85 PathProgramCache]: Analyzing trace with hash -460431295, now seen corresponding path program 1 times [2023-12-21 22:17:26,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:26,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647722443] [2023-12-21 22:17:26,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:26,047 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 [2023-12-21 22:17:26,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:26,048 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) [2023-12-21 22:17:26,054 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 [2023-12-21 22:17:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:26,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:26,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:26,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:26,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:26,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:26,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [647722443] [2023-12-21 22:17:26,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [647722443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:26,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:26,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:26,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058926256] [2023-12-21 22:17:26,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:26,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:26,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:26,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:26,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:26,204 INFO L87 Difference]: Start difference. First operand 2639 states and 4745 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:26,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:26,605 INFO L93 Difference]: Finished difference Result 3261 states and 5707 transitions. [2023-12-21 22:17:26,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:26,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:26,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:26,621 INFO L225 Difference]: With dead ends: 3261 [2023-12-21 22:17:26,622 INFO L226 Difference]: Without dead ends: 2757 [2023-12-21 22:17:26,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:26,625 INFO L413 NwaCegarLoop]: 4201 mSDtfsCounter, 4547 mSDsluCounter, 8298 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4563 SdHoareTripleChecker+Valid, 12499 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:26,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4563 Valid, 12499 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:26,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2023-12-21 22:17:26,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 2757. [2023-12-21 22:17:26,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2757 states, 2695 states have (on average 1.7888682745825604) internal successors, (4821), 2699 states have internal predecessors, (4821), 43 states have call successors, (43), 17 states have call predecessors, (43), 17 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-21 22:17:26,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2757 states to 2757 states and 4906 transitions. [2023-12-21 22:17:26,760 INFO L78 Accepts]: Start accepts. Automaton has 2757 states and 4906 transitions. Word has length 122 [2023-12-21 22:17:26,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:26,760 INFO L495 AbstractCegarLoop]: Abstraction has 2757 states and 4906 transitions. [2023-12-21 22:17:26,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:26,760 INFO L276 IsEmpty]: Start isEmpty. Operand 2757 states and 4906 transitions. [2023-12-21 22:17:26,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:26,761 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:26,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:26,765 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 [2023-12-21 22:17:26,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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 [2023-12-21 22:17:26,965 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:26,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:26,967 INFO L85 PathProgramCache]: Analyzing trace with hash -994082174, now seen corresponding path program 1 times [2023-12-21 22:17:26,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:26,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997828759] [2023-12-21 22:17:26,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:26,968 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 [2023-12-21 22:17:26,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:26,969 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2023-12-21 22:17:27,000 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 (12)] Waiting until timeout for monitored process [2023-12-21 22:17:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:27,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:27,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:27,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:27,119 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:27,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:27,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997828759] [2023-12-21 22:17:27,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1997828759] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:27,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:27,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:27,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356428996] [2023-12-21 22:17:27,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:27,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:27,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:27,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:27,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:27,121 INFO L87 Difference]: Start difference. First operand 2757 states and 4906 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:27,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:27,512 INFO L93 Difference]: Finished difference Result 3497 states and 6029 transitions. [2023-12-21 22:17:27,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:27,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:27,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:27,535 INFO L225 Difference]: With dead ends: 3497 [2023-12-21 22:17:27,535 INFO L226 Difference]: Without dead ends: 2875 [2023-12-21 22:17:27,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:27,538 INFO L413 NwaCegarLoop]: 4198 mSDtfsCounter, 4540 mSDsluCounter, 8294 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4556 SdHoareTripleChecker+Valid, 12492 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:27,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4556 Valid, 12492 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:27,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2023-12-21 22:17:27,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 2875. [2023-12-21 22:17:27,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2807 states have (on average 1.7719985749910936) internal successors, (4974), 2811 states have internal predecessors, (4974), 45 states have call successors, (45), 21 states have call predecessors, (45), 21 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-21 22:17:27,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 5063 transitions. [2023-12-21 22:17:27,595 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 5063 transitions. Word has length 122 [2023-12-21 22:17:27,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:27,596 INFO L495 AbstractCegarLoop]: Abstraction has 2875 states and 5063 transitions. [2023-12-21 22:17:27,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:27,596 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 5063 transitions. [2023-12-21 22:17:27,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:27,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:27,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:27,603 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 (12)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:27,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /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 [2023-12-21 22:17:27,801 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:27,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:27,801 INFO L85 PathProgramCache]: Analyzing trace with hash 357303044, now seen corresponding path program 1 times [2023-12-21 22:17:27,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:27,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593656443] [2023-12-21 22:17:27,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:27,802 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 [2023-12-21 22:17:27,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:27,803 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2023-12-21 22:17:27,805 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 (13)] Waiting until timeout for monitored process [2023-12-21 22:17:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:27,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:27,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:27,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:27,952 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:27,952 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:27,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593656443] [2023-12-21 22:17:27,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1593656443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:27,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:27,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:27,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263528979] [2023-12-21 22:17:27,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:27,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:27,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:27,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:27,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:27,953 INFO L87 Difference]: Start difference. First operand 2875 states and 5063 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:28,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:28,327 INFO L93 Difference]: Finished difference Result 3733 states and 6343 transitions. [2023-12-21 22:17:28,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:28,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:28,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:28,345 INFO L225 Difference]: With dead ends: 3733 [2023-12-21 22:17:28,346 INFO L226 Difference]: Without dead ends: 2993 [2023-12-21 22:17:28,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:28,349 INFO L413 NwaCegarLoop]: 4195 mSDtfsCounter, 4534 mSDsluCounter, 8290 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4550 SdHoareTripleChecker+Valid, 12485 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:28,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4550 Valid, 12485 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:28,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2993 states. [2023-12-21 22:17:28,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2993 to 2993. [2023-12-21 22:17:28,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2993 states, 2919 states have (on average 1.7550531003768415) internal successors, (5123), 2923 states have internal predecessors, (5123), 47 states have call successors, (47), 25 states have call predecessors, (47), 25 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-21 22:17:28,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2993 states to 2993 states and 5216 transitions. [2023-12-21 22:17:28,411 INFO L78 Accepts]: Start accepts. Automaton has 2993 states and 5216 transitions. Word has length 122 [2023-12-21 22:17:28,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:28,411 INFO L495 AbstractCegarLoop]: Abstraction has 2993 states and 5216 transitions. [2023-12-21 22:17:28,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:28,411 INFO L276 IsEmpty]: Start isEmpty. Operand 2993 states and 5216 transitions. [2023-12-21 22:17:28,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:28,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:28,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:28,416 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 (13)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:28,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /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 [2023-12-21 22:17:28,617 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:28,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:28,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1010864773, now seen corresponding path program 1 times [2023-12-21 22:17:28,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:28,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216966738] [2023-12-21 22:17:28,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:28,617 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 [2023-12-21 22:17:28,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:28,619 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2023-12-21 22:17:28,623 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 (14)] Waiting until timeout for monitored process [2023-12-21 22:17:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:28,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:28,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:28,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:28,761 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:28,761 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:28,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216966738] [2023-12-21 22:17:28,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216966738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:28,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:28,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:28,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882840203] [2023-12-21 22:17:28,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:28,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:28,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:28,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:28,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:28,763 INFO L87 Difference]: Start difference. First operand 2993 states and 5216 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:29,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:29,167 INFO L93 Difference]: Finished difference Result 3969 states and 6649 transitions. [2023-12-21 22:17:29,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:29,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:29,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:29,173 INFO L225 Difference]: With dead ends: 3969 [2023-12-21 22:17:29,174 INFO L226 Difference]: Without dead ends: 3111 [2023-12-21 22:17:29,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:29,177 INFO L413 NwaCegarLoop]: 4192 mSDtfsCounter, 4526 mSDsluCounter, 8286 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4542 SdHoareTripleChecker+Valid, 12478 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:29,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4542 Valid, 12478 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:29,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3111 states. [2023-12-21 22:17:29,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3111 to 3111. [2023-12-21 22:17:29,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3111 states, 3031 states have (on average 1.7380402507423294) internal successors, (5268), 3035 states have internal predecessors, (5268), 49 states have call successors, (49), 29 states have call predecessors, (49), 29 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-21 22:17:29,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3111 states to 3111 states and 5365 transitions. [2023-12-21 22:17:29,237 INFO L78 Accepts]: Start accepts. Automaton has 3111 states and 5365 transitions. Word has length 122 [2023-12-21 22:17:29,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:29,238 INFO L495 AbstractCegarLoop]: Abstraction has 3111 states and 5365 transitions. [2023-12-21 22:17:29,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:29,238 INFO L276 IsEmpty]: Start isEmpty. Operand 3111 states and 5365 transitions. [2023-12-21 22:17:29,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:29,239 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:29,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:29,243 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 (14)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:29,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /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 [2023-12-21 22:17:29,443 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:29,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:29,443 INFO L85 PathProgramCache]: Analyzing trace with hash -823073851, now seen corresponding path program 1 times [2023-12-21 22:17:29,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:29,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46595738] [2023-12-21 22:17:29,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:29,444 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 [2023-12-21 22:17:29,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:29,445 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2023-12-21 22:17:29,446 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 (15)] Waiting until timeout for monitored process [2023-12-21 22:17:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:29,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:29,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:29,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:29,591 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:29,591 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:29,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [46595738] [2023-12-21 22:17:29,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [46595738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:29,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:29,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:29,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949287666] [2023-12-21 22:17:29,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:29,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:29,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:29,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:29,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:29,592 INFO L87 Difference]: Start difference. First operand 3111 states and 5365 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:29,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:29,992 INFO L93 Difference]: Finished difference Result 4205 states and 6947 transitions. [2023-12-21 22:17:30,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:30,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:30,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:30,006 INFO L225 Difference]: With dead ends: 4205 [2023-12-21 22:17:30,006 INFO L226 Difference]: Without dead ends: 3229 [2023-12-21 22:17:30,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:30,009 INFO L413 NwaCegarLoop]: 4189 mSDtfsCounter, 4519 mSDsluCounter, 8282 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4535 SdHoareTripleChecker+Valid, 12471 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:30,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4535 Valid, 12471 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:30,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3229 states. [2023-12-21 22:17:30,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3229 to 3229. [2023-12-21 22:17:30,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 3143 states have (on average 1.720967228762329) internal successors, (5409), 3147 states have internal predecessors, (5409), 51 states have call successors, (51), 33 states have call predecessors, (51), 33 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-21 22:17:30,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 5510 transitions. [2023-12-21 22:17:30,153 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 5510 transitions. Word has length 122 [2023-12-21 22:17:30,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:30,154 INFO L495 AbstractCegarLoop]: Abstraction has 3229 states and 5510 transitions. [2023-12-21 22:17:30,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:30,154 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 5510 transitions. [2023-12-21 22:17:30,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:30,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:30,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:30,161 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 (15)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:30,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /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 [2023-12-21 22:17:30,359 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:30,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:30,359 INFO L85 PathProgramCache]: Analyzing trace with hash 608518756, now seen corresponding path program 1 times [2023-12-21 22:17:30,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:30,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900071657] [2023-12-21 22:17:30,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:30,360 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 [2023-12-21 22:17:30,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:30,361 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2023-12-21 22:17:30,361 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 (16)] Waiting until timeout for monitored process [2023-12-21 22:17:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:30,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:30,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:30,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:30,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:30,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:30,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900071657] [2023-12-21 22:17:30,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900071657] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:30,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:30,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:30,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789199645] [2023-12-21 22:17:30,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:30,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:30,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:30,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:30,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:30,512 INFO L87 Difference]: Start difference. First operand 3229 states and 5510 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:30,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:30,932 INFO L93 Difference]: Finished difference Result 4441 states and 7237 transitions. [2023-12-21 22:17:30,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:30,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:30,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:30,939 INFO L225 Difference]: With dead ends: 4441 [2023-12-21 22:17:30,940 INFO L226 Difference]: Without dead ends: 3347 [2023-12-21 22:17:30,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:30,943 INFO L413 NwaCegarLoop]: 4186 mSDtfsCounter, 4512 mSDsluCounter, 8278 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4528 SdHoareTripleChecker+Valid, 12464 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:30,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4528 Valid, 12464 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:30,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3347 states. [2023-12-21 22:17:31,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3347 to 3347. [2023-12-21 22:17:31,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3347 states, 3255 states have (on average 1.7038402457757296) internal successors, (5546), 3259 states have internal predecessors, (5546), 53 states have call successors, (53), 37 states have call predecessors, (53), 37 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-21 22:17:31,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3347 states to 3347 states and 5651 transitions. [2023-12-21 22:17:31,032 INFO L78 Accepts]: Start accepts. Automaton has 3347 states and 5651 transitions. Word has length 122 [2023-12-21 22:17:31,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:31,032 INFO L495 AbstractCegarLoop]: Abstraction has 3347 states and 5651 transitions. [2023-12-21 22:17:31,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:31,032 INFO L276 IsEmpty]: Start isEmpty. Operand 3347 states and 5651 transitions. [2023-12-21 22:17:31,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:31,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:31,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:31,045 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 (16)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:31,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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 [2023-12-21 22:17:31,238 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:31,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:31,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1386683484, now seen corresponding path program 1 times [2023-12-21 22:17:31,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:31,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411373491] [2023-12-21 22:17:31,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:31,239 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 [2023-12-21 22:17:31,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:31,240 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2023-12-21 22:17:31,248 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 (17)] Waiting until timeout for monitored process [2023-12-21 22:17:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:31,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:31,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:31,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:31,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:31,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:31,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411373491] [2023-12-21 22:17:31,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1411373491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:31,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:31,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:31,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945055038] [2023-12-21 22:17:31,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:31,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:31,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:31,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:31,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:31,398 INFO L87 Difference]: Start difference. First operand 3347 states and 5651 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:31,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:31,847 INFO L93 Difference]: Finished difference Result 4677 states and 7519 transitions. [2023-12-21 22:17:31,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:31,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:31,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:31,855 INFO L225 Difference]: With dead ends: 4677 [2023-12-21 22:17:31,855 INFO L226 Difference]: Without dead ends: 3465 [2023-12-21 22:17:31,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:31,859 INFO L413 NwaCegarLoop]: 4183 mSDtfsCounter, 4505 mSDsluCounter, 8274 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4521 SdHoareTripleChecker+Valid, 12457 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:31,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4521 Valid, 12457 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:31,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2023-12-21 22:17:31,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3465. [2023-12-21 22:17:31,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3465 states, 3367 states have (on average 1.6866646866646866) internal successors, (5679), 3371 states have internal predecessors, (5679), 55 states have call successors, (55), 41 states have call predecessors, (55), 41 states have return successors, (54), 53 states have call predecessors, (54), 53 states have call successors, (54) [2023-12-21 22:17:31,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3465 states to 3465 states and 5788 transitions. [2023-12-21 22:17:31,957 INFO L78 Accepts]: Start accepts. Automaton has 3465 states and 5788 transitions. Word has length 122 [2023-12-21 22:17:31,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:31,958 INFO L495 AbstractCegarLoop]: Abstraction has 3465 states and 5788 transitions. [2023-12-21 22:17:31,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:31,958 INFO L276 IsEmpty]: Start isEmpty. Operand 3465 states and 5788 transitions. [2023-12-21 22:17:31,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:31,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:31,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:31,965 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 (17)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:32,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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 [2023-12-21 22:17:32,166 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:32,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:32,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1542230781, now seen corresponding path program 1 times [2023-12-21 22:17:32,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:32,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841310616] [2023-12-21 22:17:32,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:32,167 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 [2023-12-21 22:17:32,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:32,168 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2023-12-21 22:17:32,169 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 (18)] Waiting until timeout for monitored process [2023-12-21 22:17:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:32,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:32,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:32,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:32,320 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:32,321 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:32,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841310616] [2023-12-21 22:17:32,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1841310616] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:32,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:32,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:32,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394195713] [2023-12-21 22:17:32,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:32,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:32,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:32,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:32,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:32,322 INFO L87 Difference]: Start difference. First operand 3465 states and 5788 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:32,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:32,774 INFO L93 Difference]: Finished difference Result 4913 states and 7793 transitions. [2023-12-21 22:17:32,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:32,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:32,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:32,780 INFO L225 Difference]: With dead ends: 4913 [2023-12-21 22:17:32,780 INFO L226 Difference]: Without dead ends: 3583 [2023-12-21 22:17:32,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:32,785 INFO L413 NwaCegarLoop]: 4180 mSDtfsCounter, 4498 mSDsluCounter, 8270 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4514 SdHoareTripleChecker+Valid, 12450 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:32,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4514 Valid, 12450 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:32,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3583 states. [2023-12-21 22:17:32,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3583 to 3583. [2023-12-21 22:17:32,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3583 states, 3479 states have (on average 1.6694452428858868) internal successors, (5808), 3483 states have internal predecessors, (5808), 57 states have call successors, (57), 45 states have call predecessors, (57), 45 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-21 22:17:32,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3583 states to 3583 states and 5921 transitions. [2023-12-21 22:17:32,884 INFO L78 Accepts]: Start accepts. Automaton has 3583 states and 5921 transitions. Word has length 122 [2023-12-21 22:17:32,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:32,884 INFO L495 AbstractCegarLoop]: Abstraction has 3583 states and 5921 transitions. [2023-12-21 22:17:32,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:32,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3583 states and 5921 transitions. [2023-12-21 22:17:32,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:32,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:32,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:32,892 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 (18)] Ended with exit code 0 [2023-12-21 22:17:33,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 [2023-12-21 22:17:33,090 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:33,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:33,090 INFO L85 PathProgramCache]: Analyzing trace with hash 69099075, now seen corresponding path program 1 times [2023-12-21 22:17:33,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:33,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036842573] [2023-12-21 22:17:33,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:33,091 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 [2023-12-21 22:17:33,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:33,092 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2023-12-21 22:17:33,096 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 (19)] Waiting until timeout for monitored process [2023-12-21 22:17:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:33,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:33,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:33,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:33,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:33,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:33,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036842573] [2023-12-21 22:17:33,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036842573] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:33,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:33,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:33,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245982023] [2023-12-21 22:17:33,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:33,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:33,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:33,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:33,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:33,202 INFO L87 Difference]: Start difference. First operand 3583 states and 5921 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:33,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:33,351 INFO L93 Difference]: Finished difference Result 5134 states and 8038 transitions. [2023-12-21 22:17:33,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:33,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:33,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:33,357 INFO L225 Difference]: With dead ends: 5134 [2023-12-21 22:17:33,357 INFO L226 Difference]: Without dead ends: 3687 [2023-12-21 22:17:33,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:33,360 INFO L413 NwaCegarLoop]: 4299 mSDtfsCounter, 74 mSDsluCounter, 8586 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 12885 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:33,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 12885 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:33,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2023-12-21 22:17:33,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3587. [2023-12-21 22:17:33,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3587 states, 3483 states have (on average 1.6640826873385013) internal successors, (5796), 3487 states have internal predecessors, (5796), 57 states have call successors, (57), 45 states have call predecessors, (57), 45 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-21 22:17:33,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3587 states to 3587 states and 5909 transitions. [2023-12-21 22:17:33,433 INFO L78 Accepts]: Start accepts. Automaton has 3587 states and 5909 transitions. Word has length 122 [2023-12-21 22:17:33,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:33,433 INFO L495 AbstractCegarLoop]: Abstraction has 3587 states and 5909 transitions. [2023-12-21 22:17:33,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:33,433 INFO L276 IsEmpty]: Start isEmpty. Operand 3587 states and 5909 transitions. [2023-12-21 22:17:33,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:33,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:33,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:33,440 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 (19)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:33,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 [2023-12-21 22:17:33,638 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:33,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:33,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1073403391, now seen corresponding path program 1 times [2023-12-21 22:17:33,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:33,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026558992] [2023-12-21 22:17:33,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:33,639 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 [2023-12-21 22:17:33,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:33,640 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2023-12-21 22:17:33,643 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 (20)] Waiting until timeout for monitored process [2023-12-21 22:17:33,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:33,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:33,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:33,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:33,760 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:33,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:33,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026558992] [2023-12-21 22:17:33,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1026558992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:33,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:33,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:33,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876460125] [2023-12-21 22:17:33,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:33,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:33,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:33,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:33,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:33,762 INFO L87 Difference]: Start difference. First operand 3587 states and 5909 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:33,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:33,884 INFO L93 Difference]: Finished difference Result 5130 states and 7998 transitions. [2023-12-21 22:17:33,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:33,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:33,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:33,890 INFO L225 Difference]: With dead ends: 5130 [2023-12-21 22:17:33,890 INFO L226 Difference]: Without dead ends: 3679 [2023-12-21 22:17:33,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:33,893 INFO L413 NwaCegarLoop]: 4299 mSDtfsCounter, 65 mSDsluCounter, 8587 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 12886 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:33,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 12886 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 22:17:33,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3679 states. [2023-12-21 22:17:34,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3679 to 3591. [2023-12-21 22:17:34,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3591 states, 3487 states have (on average 1.6587324347576713) internal successors, (5784), 3491 states have internal predecessors, (5784), 57 states have call successors, (57), 45 states have call predecessors, (57), 45 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-21 22:17:34,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3591 states to 3591 states and 5897 transitions. [2023-12-21 22:17:34,025 INFO L78 Accepts]: Start accepts. Automaton has 3591 states and 5897 transitions. Word has length 122 [2023-12-21 22:17:34,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:34,025 INFO L495 AbstractCegarLoop]: Abstraction has 3591 states and 5897 transitions. [2023-12-21 22:17:34,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:34,026 INFO L276 IsEmpty]: Start isEmpty. Operand 3591 states and 5897 transitions. [2023-12-21 22:17:34,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:34,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:34,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:34,033 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 (20)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:34,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 [2023-12-21 22:17:34,231 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:34,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:34,231 INFO L85 PathProgramCache]: Analyzing trace with hash 660701059, now seen corresponding path program 1 times [2023-12-21 22:17:34,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:34,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536808026] [2023-12-21 22:17:34,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:34,231 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 [2023-12-21 22:17:34,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:34,232 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2023-12-21 22:17:34,237 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 (21)] Waiting until timeout for monitored process [2023-12-21 22:17:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:34,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:34,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:34,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:34,350 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:34,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:34,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536808026] [2023-12-21 22:17:34,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536808026] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:34,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:34,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:34,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107285023] [2023-12-21 22:17:34,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:34,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:34,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:34,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:34,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:34,352 INFO L87 Difference]: Start difference. First operand 3591 states and 5897 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:34,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:34,473 INFO L93 Difference]: Finished difference Result 5126 states and 7958 transitions. [2023-12-21 22:17:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:34,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:34,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:34,478 INFO L225 Difference]: With dead ends: 5126 [2023-12-21 22:17:34,478 INFO L226 Difference]: Without dead ends: 3671 [2023-12-21 22:17:34,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:34,481 INFO L413 NwaCegarLoop]: 4299 mSDtfsCounter, 56 mSDsluCounter, 8588 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 12887 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:34,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 12887 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:34,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3671 states. [2023-12-21 22:17:34,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3671 to 3595. [2023-12-21 22:17:34,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3595 states, 3491 states have (on average 1.6533944428530507) internal successors, (5772), 3495 states have internal predecessors, (5772), 57 states have call successors, (57), 45 states have call predecessors, (57), 45 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-21 22:17:34,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3595 states to 3595 states and 5885 transitions. [2023-12-21 22:17:34,562 INFO L78 Accepts]: Start accepts. Automaton has 3595 states and 5885 transitions. Word has length 122 [2023-12-21 22:17:34,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:34,563 INFO L495 AbstractCegarLoop]: Abstraction has 3595 states and 5885 transitions. [2023-12-21 22:17:34,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:34,563 INFO L276 IsEmpty]: Start isEmpty. Operand 3595 states and 5885 transitions. [2023-12-21 22:17:34,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:34,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:34,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:34,576 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 (21)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:34,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 [2023-12-21 22:17:34,771 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:34,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:34,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1725808447, now seen corresponding path program 1 times [2023-12-21 22:17:34,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:34,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417180614] [2023-12-21 22:17:34,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:34,772 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 [2023-12-21 22:17:34,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:34,773 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2023-12-21 22:17:34,773 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 (22)] Waiting until timeout for monitored process [2023-12-21 22:17:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:34,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:17:34,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:34,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:34,914 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:34,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:34,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417180614] [2023-12-21 22:17:34,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417180614] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:34,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:34,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 22:17:34,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060501709] [2023-12-21 22:17:34,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:34,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:17:34,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:34,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:17:34,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:34,916 INFO L87 Difference]: Start difference. First operand 3595 states and 5885 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:35,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:35,072 INFO L93 Difference]: Finished difference Result 6370 states and 9527 transitions. [2023-12-21 22:17:35,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:17:35,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:35,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:35,080 INFO L225 Difference]: With dead ends: 6370 [2023-12-21 22:17:35,081 INFO L226 Difference]: Without dead ends: 4911 [2023-12-21 22:17:35,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:35,084 INFO L413 NwaCegarLoop]: 4346 mSDtfsCounter, 4266 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4266 SdHoareTripleChecker+Valid, 4657 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:35,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4266 Valid, 4657 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:35,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4911 states. [2023-12-21 22:17:35,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4911 to 4905. [2023-12-21 22:17:35,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4905 states, 4713 states have (on average 1.5614258434118395) internal successors, (7359), 4718 states have internal predecessors, (7359), 104 states have call successors, (104), 85 states have call predecessors, (104), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-21 22:17:35,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4905 states to 4905 states and 7567 transitions. [2023-12-21 22:17:35,197 INFO L78 Accepts]: Start accepts. Automaton has 4905 states and 7567 transitions. Word has length 122 [2023-12-21 22:17:35,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:35,197 INFO L495 AbstractCegarLoop]: Abstraction has 4905 states and 7567 transitions. [2023-12-21 22:17:35,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:35,197 INFO L276 IsEmpty]: Start isEmpty. Operand 4905 states and 7567 transitions. [2023-12-21 22:17:35,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:35,198 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:35,198 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:35,214 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 (22)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:35,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 [2023-12-21 22:17:35,403 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:35,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:35,403 INFO L85 PathProgramCache]: Analyzing trace with hash 112004576, now seen corresponding path program 1 times [2023-12-21 22:17:35,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:35,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [544157914] [2023-12-21 22:17:35,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:35,403 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 [2023-12-21 22:17:35,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:35,404 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2023-12-21 22:17:35,407 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 (23)] Waiting until timeout for monitored process [2023-12-21 22:17:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:35,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:35,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:35,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:35,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:35,513 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:35,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [544157914] [2023-12-21 22:17:35,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [544157914] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:35,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:35,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:35,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439124530] [2023-12-21 22:17:35,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:35,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:35,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:35,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:35,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:35,514 INFO L87 Difference]: Start difference. First operand 4905 states and 7567 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:35,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:35,667 INFO L93 Difference]: Finished difference Result 8286 states and 12048 transitions. [2023-12-21 22:17:35,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:35,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:35,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:35,676 INFO L225 Difference]: With dead ends: 8286 [2023-12-21 22:17:35,676 INFO L226 Difference]: Without dead ends: 5517 [2023-12-21 22:17:35,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:35,682 INFO L413 NwaCegarLoop]: 4302 mSDtfsCounter, 47 mSDsluCounter, 8598 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 12900 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:35,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 12900 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:35,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5517 states. [2023-12-21 22:17:35,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5517 to 4941. [2023-12-21 22:17:35,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4941 states, 4749 states have (on average 1.5538008001684565) internal successors, (7379), 4754 states have internal predecessors, (7379), 104 states have call successors, (104), 85 states have call predecessors, (104), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-21 22:17:35,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4941 states to 4941 states and 7587 transitions. [2023-12-21 22:17:35,798 INFO L78 Accepts]: Start accepts. Automaton has 4941 states and 7587 transitions. Word has length 122 [2023-12-21 22:17:35,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:35,798 INFO L495 AbstractCegarLoop]: Abstraction has 4941 states and 7587 transitions. [2023-12-21 22:17:35,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:35,799 INFO L276 IsEmpty]: Start isEmpty. Operand 4941 states and 7587 transitions. [2023-12-21 22:17:35,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:35,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:35,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:35,806 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 (23)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:36,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 [2023-12-21 22:17:36,004 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:36,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:36,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1574175262, now seen corresponding path program 1 times [2023-12-21 22:17:36,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:36,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139446027] [2023-12-21 22:17:36,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:36,005 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 [2023-12-21 22:17:36,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:36,006 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2023-12-21 22:17:36,007 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 (24)] Waiting until timeout for monitored process [2023-12-21 22:17:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:36,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:36,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:36,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:36,112 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:36,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:36,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139446027] [2023-12-21 22:17:36,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139446027] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:36,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:36,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:36,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603960129] [2023-12-21 22:17:36,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:36,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:36,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:36,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:36,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:36,113 INFO L87 Difference]: Start difference. First operand 4941 states and 7587 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:36,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:36,333 INFO L93 Difference]: Finished difference Result 7834 states and 11381 transitions. [2023-12-21 22:17:36,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:36,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:36,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:36,339 INFO L225 Difference]: With dead ends: 7834 [2023-12-21 22:17:36,339 INFO L226 Difference]: Without dead ends: 5029 [2023-12-21 22:17:36,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:36,344 INFO L413 NwaCegarLoop]: 4299 mSDtfsCounter, 29 mSDsluCounter, 8590 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 12889 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:36,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 12889 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:36,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5029 states. [2023-12-21 22:17:36,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5029 to 4949. [2023-12-21 22:17:36,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4949 states, 4757 states have (on average 1.5465629598486441) internal successors, (7357), 4762 states have internal predecessors, (7357), 104 states have call successors, (104), 85 states have call predecessors, (104), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-21 22:17:36,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4949 states to 4949 states and 7565 transitions. [2023-12-21 22:17:36,454 INFO L78 Accepts]: Start accepts. Automaton has 4949 states and 7565 transitions. Word has length 122 [2023-12-21 22:17:36,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:36,454 INFO L495 AbstractCegarLoop]: Abstraction has 4949 states and 7565 transitions. [2023-12-21 22:17:36,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:36,454 INFO L276 IsEmpty]: Start isEmpty. Operand 4949 states and 7565 transitions. [2023-12-21 22:17:36,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:36,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:36,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:36,463 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 (24)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:36,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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 [2023-12-21 22:17:36,661 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:36,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:36,661 INFO L85 PathProgramCache]: Analyzing trace with hash -187389852, now seen corresponding path program 1 times [2023-12-21 22:17:36,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:36,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638941047] [2023-12-21 22:17:36,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:36,661 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 [2023-12-21 22:17:36,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:36,662 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2023-12-21 22:17:36,663 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 (25)] Waiting until timeout for monitored process [2023-12-21 22:17:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:36,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:36,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:36,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:36,771 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:36,771 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:36,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638941047] [2023-12-21 22:17:36,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638941047] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:36,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:36,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:36,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956765829] [2023-12-21 22:17:36,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:36,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:36,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:36,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:36,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:36,773 INFO L87 Difference]: Start difference. First operand 4949 states and 7565 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:36,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:36,928 INFO L93 Difference]: Finished difference Result 7826 states and 11305 transitions. [2023-12-21 22:17:36,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:36,928 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:36,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:36,935 INFO L225 Difference]: With dead ends: 7826 [2023-12-21 22:17:36,935 INFO L226 Difference]: Without dead ends: 5013 [2023-12-21 22:17:36,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:36,941 INFO L413 NwaCegarLoop]: 4299 mSDtfsCounter, 20 mSDsluCounter, 8591 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12890 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:36,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12890 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:36,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5013 states. [2023-12-21 22:17:37,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5013 to 4957. [2023-12-21 22:17:37,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4957 states, 4765 states have (on average 1.5393494228751312) internal successors, (7335), 4770 states have internal predecessors, (7335), 104 states have call successors, (104), 85 states have call predecessors, (104), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-21 22:17:37,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4957 states to 4957 states and 7543 transitions. [2023-12-21 22:17:37,054 INFO L78 Accepts]: Start accepts. Automaton has 4957 states and 7543 transitions. Word has length 122 [2023-12-21 22:17:37,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:37,055 INFO L495 AbstractCegarLoop]: Abstraction has 4957 states and 7543 transitions. [2023-12-21 22:17:37,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:37,055 INFO L276 IsEmpty]: Start isEmpty. Operand 4957 states and 7543 transitions. [2023-12-21 22:17:37,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:37,058 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:37,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:37,065 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 (25)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:37,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /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 [2023-12-21 22:17:37,260 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:37,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:37,261 INFO L85 PathProgramCache]: Analyzing trace with hash -668470110, now seen corresponding path program 1 times [2023-12-21 22:17:37,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:37,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017077659] [2023-12-21 22:17:37,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:37,261 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 [2023-12-21 22:17:37,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:37,263 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2023-12-21 22:17:37,293 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 (26)] Waiting until timeout for monitored process [2023-12-21 22:17:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:37,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:37,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:37,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:37,376 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:37,376 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:37,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017077659] [2023-12-21 22:17:37,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017077659] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:37,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:37,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:37,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360713487] [2023-12-21 22:17:37,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:37,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:37,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:37,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:37,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:37,378 INFO L87 Difference]: Start difference. First operand 4957 states and 7543 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:37,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:37,547 INFO L93 Difference]: Finished difference Result 7818 states and 11229 transitions. [2023-12-21 22:17:37,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:37,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:37,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:37,555 INFO L225 Difference]: With dead ends: 7818 [2023-12-21 22:17:37,556 INFO L226 Difference]: Without dead ends: 4997 [2023-12-21 22:17:37,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:37,561 INFO L413 NwaCegarLoop]: 4299 mSDtfsCounter, 11 mSDsluCounter, 8592 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12891 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:37,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12891 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:37,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4997 states. [2023-12-21 22:17:37,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4997 to 4965. [2023-12-21 22:17:37,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4965 states, 4773 states have (on average 1.532160067043788) internal successors, (7313), 4778 states have internal predecessors, (7313), 104 states have call successors, (104), 85 states have call predecessors, (104), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-21 22:17:37,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4965 states to 4965 states and 7521 transitions. [2023-12-21 22:17:37,674 INFO L78 Accepts]: Start accepts. Automaton has 4965 states and 7521 transitions. Word has length 122 [2023-12-21 22:17:37,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:37,675 INFO L495 AbstractCegarLoop]: Abstraction has 4965 states and 7521 transitions. [2023-12-21 22:17:37,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:37,675 INFO L276 IsEmpty]: Start isEmpty. Operand 4965 states and 7521 transitions. [2023-12-21 22:17:37,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:37,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:37,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:37,682 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 (26)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:37,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /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 [2023-12-21 22:17:37,880 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:37,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:37,880 INFO L85 PathProgramCache]: Analyzing trace with hash 225016228, now seen corresponding path program 1 times [2023-12-21 22:17:37,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:37,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480989018] [2023-12-21 22:17:37,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:37,881 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 [2023-12-21 22:17:37,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:37,882 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2023-12-21 22:17:37,882 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 (27)] Waiting until timeout for monitored process [2023-12-21 22:17:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:37,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:37,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:37,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:37,996 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:37,996 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:37,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480989018] [2023-12-21 22:17:37,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480989018] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:37,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:37,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:37,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604037780] [2023-12-21 22:17:37,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:37,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:37,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:37,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:37,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:37,999 INFO L87 Difference]: Start difference. First operand 4965 states and 7521 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:38,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:38,164 INFO L93 Difference]: Finished difference Result 7810 states and 11153 transitions. [2023-12-21 22:17:38,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:38,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:38,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:38,172 INFO L225 Difference]: With dead ends: 7810 [2023-12-21 22:17:38,172 INFO L226 Difference]: Without dead ends: 4981 [2023-12-21 22:17:38,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:38,177 INFO L413 NwaCegarLoop]: 4299 mSDtfsCounter, 2 mSDsluCounter, 8593 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12892 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:38,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12892 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:38,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4981 states. [2023-12-21 22:17:38,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4981 to 4973. [2023-12-21 22:17:38,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4973 states, 4781 states have (on average 1.5249947709684166) internal successors, (7291), 4786 states have internal predecessors, (7291), 104 states have call successors, (104), 85 states have call predecessors, (104), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-21 22:17:38,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4973 states to 4973 states and 7499 transitions. [2023-12-21 22:17:38,356 INFO L78 Accepts]: Start accepts. Automaton has 4973 states and 7499 transitions. Word has length 122 [2023-12-21 22:17:38,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:38,356 INFO L495 AbstractCegarLoop]: Abstraction has 4973 states and 7499 transitions. [2023-12-21 22:17:38,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:38,357 INFO L276 IsEmpty]: Start isEmpty. Operand 4973 states and 7499 transitions. [2023-12-21 22:17:38,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:38,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:38,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:38,363 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 (27)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:38,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /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 [2023-12-21 22:17:38,562 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:38,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:38,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1146791070, now seen corresponding path program 1 times [2023-12-21 22:17:38,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:38,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658116354] [2023-12-21 22:17:38,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:38,563 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 [2023-12-21 22:17:38,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:38,564 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2023-12-21 22:17:38,570 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 (28)] Waiting until timeout for monitored process [2023-12-21 22:17:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:38,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 22:17:38,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:38,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:38,772 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:38,772 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:38,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658116354] [2023-12-21 22:17:38,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658116354] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:38,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:38,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:38,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945316644] [2023-12-21 22:17:38,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:38,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:38,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:38,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:38,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:38,773 INFO L87 Difference]: Start difference. First operand 4973 states and 7499 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:39,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:39,153 INFO L93 Difference]: Finished difference Result 7811 states and 11028 transitions. [2023-12-21 22:17:39,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:39,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:39,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:39,160 INFO L225 Difference]: With dead ends: 7811 [2023-12-21 22:17:39,160 INFO L226 Difference]: Without dead ends: 4973 [2023-12-21 22:17:39,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:39,165 INFO L413 NwaCegarLoop]: 4176 mSDtfsCounter, 4368 mSDsluCounter, 8266 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4383 SdHoareTripleChecker+Valid, 12442 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:39,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4383 Valid, 12442 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:39,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4973 states. [2023-12-21 22:17:39,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4973 to 4973. [2023-12-21 22:17:39,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4973 states, 4781 states have (on average 1.5220665132817401) internal successors, (7277), 4786 states have internal predecessors, (7277), 104 states have call successors, (104), 85 states have call predecessors, (104), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-21 22:17:39,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4973 states to 4973 states and 7485 transitions. [2023-12-21 22:17:39,278 INFO L78 Accepts]: Start accepts. Automaton has 4973 states and 7485 transitions. Word has length 122 [2023-12-21 22:17:39,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:39,278 INFO L495 AbstractCegarLoop]: Abstraction has 4973 states and 7485 transitions. [2023-12-21 22:17:39,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:39,278 INFO L276 IsEmpty]: Start isEmpty. Operand 4973 states and 7485 transitions. [2023-12-21 22:17:39,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:39,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:39,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:39,283 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 (28)] Ended with exit code 0 [2023-12-21 22:17:39,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /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 [2023-12-21 22:17:39,480 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:39,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:39,480 INFO L85 PathProgramCache]: Analyzing trace with hash -872031456, now seen corresponding path program 1 times [2023-12-21 22:17:39,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:39,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990703514] [2023-12-21 22:17:39,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:39,481 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 [2023-12-21 22:17:39,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:39,482 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2023-12-21 22:17:39,483 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 (29)] Waiting until timeout for monitored process [2023-12-21 22:17:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:39,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 22:17:39,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:39,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:39,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:39,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:39,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990703514] [2023-12-21 22:17:39,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990703514] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:39,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:39,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:39,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400368632] [2023-12-21 22:17:39,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:39,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:39,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:39,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:39,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:39,695 INFO L87 Difference]: Start difference. First operand 4973 states and 7485 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:40,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:40,194 INFO L93 Difference]: Finished difference Result 8069 states and 11325 transitions. [2023-12-21 22:17:40,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 22:17:40,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-21 22:17:40,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:40,202 INFO L225 Difference]: With dead ends: 8069 [2023-12-21 22:17:40,202 INFO L226 Difference]: Without dead ends: 5231 [2023-12-21 22:17:40,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 22:17:40,209 INFO L413 NwaCegarLoop]: 4175 mSDtfsCounter, 4458 mSDsluCounter, 8262 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4473 SdHoareTripleChecker+Valid, 12437 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:40,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4473 Valid, 12437 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 22:17:40,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5231 states. [2023-12-21 22:17:40,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5231 to 5163. [2023-12-21 22:17:40,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 4967 states have (on average 1.5009059794644655) internal successors, (7455), 4972 states have internal predecessors, (7455), 104 states have call successors, (104), 89 states have call predecessors, (104), 90 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-21 22:17:40,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 7663 transitions. [2023-12-21 22:17:40,327 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 7663 transitions. Word has length 122 [2023-12-21 22:17:40,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:40,328 INFO L495 AbstractCegarLoop]: Abstraction has 5163 states and 7663 transitions. [2023-12-21 22:17:40,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:40,328 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 7663 transitions. [2023-12-21 22:17:40,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 22:17:40,328 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:40,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:40,332 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 (29)] Ended with exit code 0 [2023-12-21 22:17:40,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /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 [2023-12-21 22:17:40,529 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:40,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:40,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1006044962, now seen corresponding path program 1 times [2023-12-21 22:17:40,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:40,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084617971] [2023-12-21 22:17:40,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:40,530 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 [2023-12-21 22:17:40,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:40,531 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2023-12-21 22:17:40,532 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 (30)] Waiting until timeout for monitored process [2023-12-21 22:17:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:40,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:17:40,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:40,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:40,719 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:40,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:40,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084617971] [2023-12-21 22:17:40,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084617971] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:40,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:40,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 22:17:40,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434490691] [2023-12-21 22:17:40,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:40,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:17:40,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:40,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:17:40,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:40,720 INFO L87 Difference]: Start difference. First operand 5163 states and 7663 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-21 22:17:41,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:41,049 INFO L93 Difference]: Finished difference Result 11134 states and 14977 transitions. [2023-12-21 22:17:41,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:17:41,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 122 [2023-12-21 22:17:41,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:41,061 INFO L225 Difference]: With dead ends: 11134 [2023-12-21 22:17:41,061 INFO L226 Difference]: Without dead ends: 8107 [2023-12-21 22:17:41,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:41,066 INFO L413 NwaCegarLoop]: 4292 mSDtfsCounter, 4185 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4185 SdHoareTripleChecker+Valid, 4595 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:41,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4185 Valid, 4595 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:41,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8107 states. [2023-12-21 22:17:41,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8107 to 8103. [2023-12-21 22:17:41,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8103 states, 7719 states have (on average 1.3953880036274129) internal successors, (10771), 7730 states have internal predecessors, (10771), 202 states have call successors, (202), 177 states have call predecessors, (202), 180 states have return successors, (204), 196 states have call predecessors, (204), 200 states have call successors, (204) [2023-12-21 22:17:41,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8103 states to 8103 states and 11177 transitions. [2023-12-21 22:17:41,285 INFO L78 Accepts]: Start accepts. Automaton has 8103 states and 11177 transitions. Word has length 122 [2023-12-21 22:17:41,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:41,285 INFO L495 AbstractCegarLoop]: Abstraction has 8103 states and 11177 transitions. [2023-12-21 22:17:41,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-21 22:17:41,285 INFO L276 IsEmpty]: Start isEmpty. Operand 8103 states and 11177 transitions. [2023-12-21 22:17:41,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-12-21 22:17:41,289 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:41,289 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:41,292 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 (30)] Ended with exit code 0 [2023-12-21 22:17:41,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /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 [2023-12-21 22:17:41,491 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:41,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:41,492 INFO L85 PathProgramCache]: Analyzing trace with hash 751454570, now seen corresponding path program 1 times [2023-12-21 22:17:41,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:41,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1334248235] [2023-12-21 22:17:41,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:41,492 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 [2023-12-21 22:17:41,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:41,493 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2023-12-21 22:17:41,494 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 (31)] Waiting until timeout for monitored process [2023-12-21 22:17:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:41,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 22:17:41,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:41,777 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-21 22:17:41,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:41,778 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:41,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1334248235] [2023-12-21 22:17:41,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1334248235] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:41,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:41,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:41,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805266292] [2023-12-21 22:17:41,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:41,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:41,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:41,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:41,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:41,779 INFO L87 Difference]: Start difference. First operand 8103 states and 11177 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:42,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:42,547 INFO L93 Difference]: Finished difference Result 19807 states and 25271 transitions. [2023-12-21 22:17:42,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:42,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 196 [2023-12-21 22:17:42,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:42,566 INFO L225 Difference]: With dead ends: 19807 [2023-12-21 22:17:42,566 INFO L226 Difference]: Without dead ends: 13841 [2023-12-21 22:17:42,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:42,571 INFO L413 NwaCegarLoop]: 4256 mSDtfsCounter, 4439 mSDsluCounter, 4408 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4444 SdHoareTripleChecker+Valid, 8664 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:42,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4444 Valid, 8664 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:42,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13841 states. [2023-12-21 22:17:42,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13841 to 13837. [2023-12-21 22:17:42,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13837 states, 13093 states have (on average 1.3157412357748415) internal successors, (17227), 13120 states have internal predecessors, (17227), 382 states have call successors, (382), 337 states have call predecessors, (382), 360 states have return successors, (428), 380 states have call predecessors, (428), 380 states have call successors, (428) [2023-12-21 22:17:42,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13837 states to 13837 states and 18037 transitions. [2023-12-21 22:17:42,968 INFO L78 Accepts]: Start accepts. Automaton has 13837 states and 18037 transitions. Word has length 196 [2023-12-21 22:17:42,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:42,969 INFO L495 AbstractCegarLoop]: Abstraction has 13837 states and 18037 transitions. [2023-12-21 22:17:42,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:42,969 INFO L276 IsEmpty]: Start isEmpty. Operand 13837 states and 18037 transitions. [2023-12-21 22:17:42,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-21 22:17:42,976 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:42,976 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:42,997 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 (31)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:43,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /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 [2023-12-21 22:17:43,181 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:43,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:43,181 INFO L85 PathProgramCache]: Analyzing trace with hash 947616389, now seen corresponding path program 1 times [2023-12-21 22:17:43,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:43,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639326277] [2023-12-21 22:17:43,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:43,182 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 [2023-12-21 22:17:43,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:43,182 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2023-12-21 22:17:43,183 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 (32)] Waiting until timeout for monitored process [2023-12-21 22:17:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:43,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 22:17:43,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:43,469 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-21 22:17:43,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:43,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:43,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639326277] [2023-12-21 22:17:43,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639326277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:43,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:43,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:43,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424318962] [2023-12-21 22:17:43,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:43,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:43,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:43,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:43,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:43,471 INFO L87 Difference]: Start difference. First operand 13837 states and 18037 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:44,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:44,512 INFO L93 Difference]: Finished difference Result 36459 states and 45214 transitions. [2023-12-21 22:17:44,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:44,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 198 [2023-12-21 22:17:44,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:44,554 INFO L225 Difference]: With dead ends: 36459 [2023-12-21 22:17:44,555 INFO L226 Difference]: Without dead ends: 24759 [2023-12-21 22:17:44,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:44,574 INFO L413 NwaCegarLoop]: 4357 mSDtfsCounter, 4418 mSDsluCounter, 4493 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4423 SdHoareTripleChecker+Valid, 8850 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:44,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4423 Valid, 8850 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:44,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24759 states. [2023-12-21 22:17:45,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24759 to 24755. [2023-12-21 22:17:45,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24755 states, 23320 states have (on average 1.2658662092624358) internal successors, (29520), 23380 states have internal predecessors, (29520), 729 states have call successors, (729), 641 states have call predecessors, (729), 704 states have return successors, (863), 735 states have call predecessors, (863), 727 states have call successors, (863) [2023-12-21 22:17:45,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24755 states to 24755 states and 31112 transitions. [2023-12-21 22:17:45,567 INFO L78 Accepts]: Start accepts. Automaton has 24755 states and 31112 transitions. Word has length 198 [2023-12-21 22:17:45,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:45,568 INFO L495 AbstractCegarLoop]: Abstraction has 24755 states and 31112 transitions. [2023-12-21 22:17:45,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:45,568 INFO L276 IsEmpty]: Start isEmpty. Operand 24755 states and 31112 transitions. [2023-12-21 22:17:45,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-21 22:17:45,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:45,578 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:45,585 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 (32)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:45,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /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 [2023-12-21 22:17:45,783 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:45,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:45,783 INFO L85 PathProgramCache]: Analyzing trace with hash 474380739, now seen corresponding path program 1 times [2023-12-21 22:17:45,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:45,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697911452] [2023-12-21 22:17:45,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:45,783 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 [2023-12-21 22:17:45,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:45,784 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2023-12-21 22:17:45,785 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 (33)] Waiting until timeout for monitored process [2023-12-21 22:17:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:45,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:17:45,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:45,916 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-21 22:17:45,916 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:45,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:45,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697911452] [2023-12-21 22:17:45,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [697911452] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:45,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:45,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:17:45,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219185811] [2023-12-21 22:17:45,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:45,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:17:45,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:45,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:17:45,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:45,918 INFO L87 Difference]: Start difference. First operand 24755 states and 31112 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:46,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:46,711 INFO L93 Difference]: Finished difference Result 47363 states and 58219 transitions. [2023-12-21 22:17:46,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:17:46,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 198 [2023-12-21 22:17:46,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:46,751 INFO L225 Difference]: With dead ends: 47363 [2023-12-21 22:17:46,751 INFO L226 Difference]: Without dead ends: 24745 [2023-12-21 22:17:46,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:46,766 INFO L413 NwaCegarLoop]: 4292 mSDtfsCounter, 360 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 8249 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:46,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 8249 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 22:17:46,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24745 states. [2023-12-21 22:17:47,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24745 to 24745. [2023-12-21 22:17:47,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24745 states, 23313 states have (on average 1.2656457770342728) internal successors, (29506), 23372 states have internal predecessors, (29506), 726 states have call successors, (726), 641 states have call predecessors, (726), 704 states have return successors, (860), 732 states have call predecessors, (860), 724 states have call successors, (860) [2023-12-21 22:17:47,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24745 states to 24745 states and 31092 transitions. [2023-12-21 22:17:47,623 INFO L78 Accepts]: Start accepts. Automaton has 24745 states and 31092 transitions. Word has length 198 [2023-12-21 22:17:47,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:47,623 INFO L495 AbstractCegarLoop]: Abstraction has 24745 states and 31092 transitions. [2023-12-21 22:17:47,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:47,623 INFO L276 IsEmpty]: Start isEmpty. Operand 24745 states and 31092 transitions. [2023-12-21 22:17:47,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-21 22:17:47,634 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:47,634 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:47,641 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 (33)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:47,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /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 [2023-12-21 22:17:47,839 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:47,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:47,839 INFO L85 PathProgramCache]: Analyzing trace with hash -185394902, now seen corresponding path program 1 times [2023-12-21 22:17:47,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:47,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1094924381] [2023-12-21 22:17:47,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:47,840 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 [2023-12-21 22:17:47,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:47,840 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2023-12-21 22:17:47,841 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 (34)] Waiting until timeout for monitored process [2023-12-21 22:17:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:47,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 22:17:47,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:48,122 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-21 22:17:48,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:48,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:48,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1094924381] [2023-12-21 22:17:48,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1094924381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:48,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:48,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:48,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609395083] [2023-12-21 22:17:48,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:48,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:48,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:48,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:48,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:48,123 INFO L87 Difference]: Start difference. First operand 24745 states and 31092 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:49,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:49,824 INFO L93 Difference]: Finished difference Result 69106 states and 84283 transitions. [2023-12-21 22:17:49,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:49,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 200 [2023-12-21 22:17:49,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:49,892 INFO L225 Difference]: With dead ends: 69106 [2023-12-21 22:17:49,892 INFO L226 Difference]: Without dead ends: 46498 [2023-12-21 22:17:49,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:49,915 INFO L413 NwaCegarLoop]: 4345 mSDtfsCounter, 4412 mSDsluCounter, 4475 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4418 SdHoareTripleChecker+Valid, 8820 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:49,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4418 Valid, 8820 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:49,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46498 states. [2023-12-21 22:17:51,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46498 to 46494. [2023-12-21 22:17:51,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46494 states, 43683 states have (on average 1.2353776068493465) internal successors, (53965), 43807 states have internal predecessors, (53965), 1417 states have call successors, (1417), 1249 states have call predecessors, (1417), 1392 states have return successors, (1727), 1439 states have call predecessors, (1727), 1415 states have call successors, (1727) [2023-12-21 22:17:51,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46494 states to 46494 states and 57109 transitions. [2023-12-21 22:17:51,692 INFO L78 Accepts]: Start accepts. Automaton has 46494 states and 57109 transitions. Word has length 200 [2023-12-21 22:17:51,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:51,692 INFO L495 AbstractCegarLoop]: Abstraction has 46494 states and 57109 transitions. [2023-12-21 22:17:51,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:51,692 INFO L276 IsEmpty]: Start isEmpty. Operand 46494 states and 57109 transitions. [2023-12-21 22:17:51,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-21 22:17:51,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:51,709 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:51,713 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 (34)] Ended with exit code 0 [2023-12-21 22:17:51,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /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 [2023-12-21 22:17:51,910 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:51,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:51,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1970798164, now seen corresponding path program 1 times [2023-12-21 22:17:51,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:51,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648863820] [2023-12-21 22:17:51,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:51,911 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 [2023-12-21 22:17:51,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:51,911 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2023-12-21 22:17:51,912 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 (35)] Waiting until timeout for monitored process [2023-12-21 22:17:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:52,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:17:52,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:52,044 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-21 22:17:52,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:52,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:52,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648863820] [2023-12-21 22:17:52,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648863820] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:52,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:52,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:17:52,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087211596] [2023-12-21 22:17:52,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:52,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:17:52,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:52,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:17:52,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:52,048 INFO L87 Difference]: Start difference. First operand 46494 states and 57109 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:53,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:53,357 INFO L93 Difference]: Finished difference Result 80174 states and 97480 transitions. [2023-12-21 22:17:53,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:17:53,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 200 [2023-12-21 22:17:53,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:53,418 INFO L225 Difference]: With dead ends: 80174 [2023-12-21 22:17:53,418 INFO L226 Difference]: Without dead ends: 35817 [2023-12-21 22:17:53,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:53,455 INFO L413 NwaCegarLoop]: 4291 mSDtfsCounter, 358 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 8248 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:53,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 8248 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 22:17:53,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35817 states. [2023-12-21 22:17:55,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35817 to 35817. [2023-12-21 22:17:55,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35817 states, 33689 states have (on average 1.2462524859746504) internal successors, (41985), 33784 states have internal predecessors, (41985), 1070 states have call successors, (1070), 945 states have call predecessors, (1070), 1056 states have return successors, (1300), 1088 states have call predecessors, (1300), 1068 states have call successors, (1300) [2023-12-21 22:17:55,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35817 states to 35817 states and 44355 transitions. [2023-12-21 22:17:55,180 INFO L78 Accepts]: Start accepts. Automaton has 35817 states and 44355 transitions. Word has length 200 [2023-12-21 22:17:55,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:55,180 INFO L495 AbstractCegarLoop]: Abstraction has 35817 states and 44355 transitions. [2023-12-21 22:17:55,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:55,180 INFO L276 IsEmpty]: Start isEmpty. Operand 35817 states and 44355 transitions. [2023-12-21 22:17:55,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-12-21 22:17:55,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:55,192 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:55,196 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 (35)] Ended with exit code 0 [2023-12-21 22:17:55,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /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 [2023-12-21 22:17:55,393 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:55,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:55,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1711265531, now seen corresponding path program 1 times [2023-12-21 22:17:55,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:55,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718940829] [2023-12-21 22:17:55,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:55,394 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 [2023-12-21 22:17:55,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:55,395 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2023-12-21 22:17:55,396 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 (36)] Waiting until timeout for monitored process [2023-12-21 22:17:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:55,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 22:17:55,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:55,675 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-21 22:17:55,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:55,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:55,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718940829] [2023-12-21 22:17:55,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [718940829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:55,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:55,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:55,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41064215] [2023-12-21 22:17:55,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:55,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:55,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:55,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:55,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:55,677 INFO L87 Difference]: Start difference. First operand 35817 states and 44355 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:58,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:58,563 INFO L93 Difference]: Finished difference Result 112761 states and 136201 transitions. [2023-12-21 22:17:58,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:58,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 202 [2023-12-21 22:17:58,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:58,690 INFO L225 Difference]: With dead ends: 112761 [2023-12-21 22:17:58,690 INFO L226 Difference]: Without dead ends: 79081 [2023-12-21 22:17:58,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:58,721 INFO L413 NwaCegarLoop]: 4354 mSDtfsCounter, 4413 mSDsluCounter, 4468 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4419 SdHoareTripleChecker+Valid, 8822 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:58,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4419 Valid, 8822 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:58,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79081 states. [2023-12-21 22:18:01,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79081 to 77541. [2023-12-21 22:18:01,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77541 states, 72738 states have (on average 1.21826280623608) internal successors, (88614), 73322 states have internal predecessors, (88614), 2041 states have call successors, (2041), 1793 states have call predecessors, (2041), 2760 states have return successors, (3284), 2427 states have call predecessors, (3284), 2039 states have call successors, (3284) [2023-12-21 22:18:01,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77541 states to 77541 states and 93939 transitions. [2023-12-21 22:18:01,628 INFO L78 Accepts]: Start accepts. Automaton has 77541 states and 93939 transitions. Word has length 202 [2023-12-21 22:18:01,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:18:01,628 INFO L495 AbstractCegarLoop]: Abstraction has 77541 states and 93939 transitions. [2023-12-21 22:18:01,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:18:01,628 INFO L276 IsEmpty]: Start isEmpty. Operand 77541 states and 93939 transitions. [2023-12-21 22:18:01,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-12-21 22:18:01,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:18:01,655 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:18:01,659 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 (36)] Ended with exit code 0 [2023-12-21 22:18:01,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /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 [2023-12-21 22:18:01,856 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:18:01,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:18:01,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1224191805, now seen corresponding path program 1 times [2023-12-21 22:18:01,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:18:01,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550174672] [2023-12-21 22:18:01,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:18:01,857 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 [2023-12-21 22:18:01,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:18:01,858 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2023-12-21 22:18:01,858 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 (37)] Waiting until timeout for monitored process [2023-12-21 22:18:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:18:02,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:18:02,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:18:02,014 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-21 22:18:02,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:18:02,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:18:02,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550174672] [2023-12-21 22:18:02,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550174672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:18:02,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:18:02,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:18:02,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104707956] [2023-12-21 22:18:02,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:18:02,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:18:02,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:18:02,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:18:02,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:18:02,016 INFO L87 Difference]: Start difference. First operand 77541 states and 93939 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:18:04,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:18:04,963 INFO L93 Difference]: Finished difference Result 152938 states and 183880 transitions. [2023-12-21 22:18:04,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:18:04,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 202 [2023-12-21 22:18:04,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:18:05,101 INFO L225 Difference]: With dead ends: 152938 [2023-12-21 22:18:05,101 INFO L226 Difference]: Without dead ends: 77533 [2023-12-21 22:18:05,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:18:05,156 INFO L413 NwaCegarLoop]: 4290 mSDtfsCounter, 356 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 8247 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 22:18:05,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 8247 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 22:18:05,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77533 states. [2023-12-21 22:18:08,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77533 to 77533. [2023-12-21 22:18:08,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77533 states, 72733 states have (on average 1.2182090660360496) internal successors, (88604), 73316 states have internal predecessors, (88604), 2038 states have call successors, (2038), 1793 states have call predecessors, (2038), 2760 states have return successors, (3280), 2424 states have call predecessors, (3280), 2036 states have call successors, (3280) [2023-12-21 22:18:08,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77533 states to 77533 states and 93922 transitions. [2023-12-21 22:18:08,197 INFO L78 Accepts]: Start accepts. Automaton has 77533 states and 93922 transitions. Word has length 202 [2023-12-21 22:18:08,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:18:08,197 INFO L495 AbstractCegarLoop]: Abstraction has 77533 states and 93922 transitions. [2023-12-21 22:18:08,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:18:08,197 INFO L276 IsEmpty]: Start isEmpty. Operand 77533 states and 93922 transitions. [2023-12-21 22:18:08,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-12-21 22:18:08,219 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:18:08,219 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:18:08,225 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 (37)] Forceful destruction successful, exit code 0 [2023-12-21 22:18:08,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /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 [2023-12-21 22:18:08,424 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:18:08,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:18:08,424 INFO L85 PathProgramCache]: Analyzing trace with hash -419397398, now seen corresponding path program 1 times [2023-12-21 22:18:08,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:18:08,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1271536296] [2023-12-21 22:18:08,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:18:08,425 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 [2023-12-21 22:18:08,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:18:08,426 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2023-12-21 22:18:08,427 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 (38)] Waiting until timeout for monitored process [2023-12-21 22:18:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:18:08,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 22:18:08,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:18:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-21 22:18:08,715 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:18:08,716 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:18:08,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1271536296] [2023-12-21 22:18:08,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1271536296] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:18:08,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:18:08,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:18:08,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159982088] [2023-12-21 22:18:08,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:18:08,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:18:08,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:18:08,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:18:08,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:18:08,717 INFO L87 Difference]: Start difference. First operand 77533 states and 93922 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:18:13,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:18:13,855 INFO L93 Difference]: Finished difference Result 221488 states and 265477 transitions. [2023-12-21 22:18:13,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:18:13,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 204 [2023-12-21 22:18:13,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:18:14,193 INFO L225 Difference]: With dead ends: 221488 [2023-12-21 22:18:14,193 INFO L226 Difference]: Without dead ends: 146092 [2023-12-21 22:18:14,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:18:14,254 INFO L413 NwaCegarLoop]: 4321 mSDtfsCounter, 4395 mSDsluCounter, 4441 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4401 SdHoareTripleChecker+Valid, 8762 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:18:14,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4401 Valid, 8762 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:18:14,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146092 states. [2023-12-21 22:18:19,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146092 to 146088. [2023-12-21 22:18:19,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146088 states, 136877 states have (on average 1.2066526881798987) internal successors, (165163), 138041 states have internal predecessors, (165163), 3881 states have call successors, (3881), 3393 states have call predecessors, (3881), 5328 states have return successors, (6379), 4655 states have call predecessors, (6379), 3879 states have call successors, (6379) [2023-12-21 22:18:19,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146088 states to 146088 states and 175423 transitions. [2023-12-21 22:18:19,776 INFO L78 Accepts]: Start accepts. Automaton has 146088 states and 175423 transitions. Word has length 204 [2023-12-21 22:18:19,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:18:19,777 INFO L495 AbstractCegarLoop]: Abstraction has 146088 states and 175423 transitions. [2023-12-21 22:18:19,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:18:19,777 INFO L276 IsEmpty]: Start isEmpty. Operand 146088 states and 175423 transitions. [2023-12-21 22:18:20,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-12-21 22:18:20,035 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:18:20,035 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:18:20,039 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 (38)] Ended with exit code 0 [2023-12-21 22:18:20,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /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 [2023-12-21 22:18:20,239 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:18:20,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:18:20,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1794986220, now seen corresponding path program 1 times [2023-12-21 22:18:20,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:18:20,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643868425] [2023-12-21 22:18:20,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:18:20,240 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 [2023-12-21 22:18:20,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:18:20,241 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2023-12-21 22:18:20,242 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 (39)] Waiting until timeout for monitored process [2023-12-21 22:18:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:18:20,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:18:20,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:18:20,378 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-21 22:18:20,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:18:20,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:18:20,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643868425] [2023-12-21 22:18:20,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643868425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:18:20,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:18:20,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:18:20,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698256020] [2023-12-21 22:18:20,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:18:20,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:18:20,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:18:20,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:18:20,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:18:20,380 INFO L87 Difference]: Start difference. First operand 146088 states and 175423 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:18:25,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:18:25,453 INFO L93 Difference]: Finished difference Result 290032 states and 346850 transitions. [2023-12-21 22:18:25,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:18:25,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 204 [2023-12-21 22:18:25,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:18:25,788 INFO L225 Difference]: With dead ends: 290032 [2023-12-21 22:18:25,788 INFO L226 Difference]: Without dead ends: 146081 [2023-12-21 22:18:25,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:18:25,865 INFO L413 NwaCegarLoop]: 4289 mSDtfsCounter, 354 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 8246 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 22:18:25,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 8246 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 22:18:25,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146081 states. [2023-12-21 22:18:31,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146081 to 146081. [2023-12-21 22:18:31,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146081 states, 136873 states have (on average 1.2066295032621481) internal successors, (165155), 138036 states have internal predecessors, (165155), 3878 states have call successors, (3878), 3393 states have call predecessors, (3878), 5328 states have return successors, (6376), 4652 states have call predecessors, (6376), 3876 states have call successors, (6376) [2023-12-21 22:18:31,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146081 states to 146081 states and 175409 transitions. [2023-12-21 22:18:31,373 INFO L78 Accepts]: Start accepts. Automaton has 146081 states and 175409 transitions. Word has length 204 [2023-12-21 22:18:31,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:18:31,373 INFO L495 AbstractCegarLoop]: Abstraction has 146081 states and 175409 transitions. [2023-12-21 22:18:31,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:18:31,373 INFO L276 IsEmpty]: Start isEmpty. Operand 146081 states and 175409 transitions. [2023-12-21 22:18:31,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-21 22:18:31,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:18:31,416 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:18:31,420 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 (39)] Forceful destruction successful, exit code 0 [2023-12-21 22:18:31,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /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 [2023-12-21 22:18:31,620 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:18:31,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:18:31,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1443372933, now seen corresponding path program 1 times [2023-12-21 22:18:31,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:18:31,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555971768] [2023-12-21 22:18:31,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:18:31,621 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 [2023-12-21 22:18:31,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:18:31,622 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2023-12-21 22:18:31,624 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 (40)] Waiting until timeout for monitored process [2023-12-21 22:18:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:18:31,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 22:18:31,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:18:32,171 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-21 22:18:32,171 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:18:32,172 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:18:32,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555971768] [2023-12-21 22:18:32,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555971768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:18:32,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:18:32,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:18:32,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964759155] [2023-12-21 22:18:32,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:18:32,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:18:32,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:18:32,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:18:32,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:18:32,173 INFO L87 Difference]: Start difference. First operand 146081 states and 175409 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8)