/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/systemc/transmitter.13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:55:40,006 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:55:40,056 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:55:40,059 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:55:40,059 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:55:40,072 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:55:40,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:55:40,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:55:40,074 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:55:40,074 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:55:40,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:55:40,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:55:40,075 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:55:40,075 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:55:40,075 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:55:40,076 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:55:40,076 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:55:40,076 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:55:40,076 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:55:40,077 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:55:40,077 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:55:40,077 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:55:40,077 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:55:40,078 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:55:40,078 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:55:40,078 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:55:40,078 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:55:40,078 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:55:40,079 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:55:40,079 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:55:40,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:55:40,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:55:40,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:55:40,079 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:55:40,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:55:40,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:55:40,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:55:40,080 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:55:40,080 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:55:40,080 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:55:40,080 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:55:40,081 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:55:40,081 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:55:40,081 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:55:40,081 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:55:40,081 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:55:40,081 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:55:40,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:55:40,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:55:40,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:55:40,237 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:55:40,238 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:55:40,239 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.13.cil.c [2023-12-16 17:55:41,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:55:41,574 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:55:41,574 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.13.cil.c [2023-12-16 17:55:41,586 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f39817fe/d7bee66c01c248e0993cd67a0453260d/FLAGe8b8ad065 [2023-12-16 17:55:41,597 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f39817fe/d7bee66c01c248e0993cd67a0453260d [2023-12-16 17:55:41,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:55:41,600 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:55:41,601 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:55:41,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:55:41,604 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:55:41,605 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:55:41" (1/1) ... [2023-12-16 17:55:41,605 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54f8e8c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:55:41, skipping insertion in model container [2023-12-16 17:55:41,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:55:41" (1/1) ... [2023-12-16 17:55:41,640 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:55:41,755 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.13.cil.c[706,719] [2023-12-16 17:55:41,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:55:41,881 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:55:41,896 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.13.cil.c[706,719] [2023-12-16 17:55:41,942 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:55:41,958 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:55:41,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:55:41 WrapperNode [2023-12-16 17:55:41,959 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:55:41,960 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:55:41,960 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:55:41,960 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:55:41,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:55:41" (1/1) ... [2023-12-16 17:55:41,985 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:55:41" (1/1) ... [2023-12-16 17:55:42,023 INFO L138 Inliner]: procedures = 54, calls = 69, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 886 [2023-12-16 17:55:42,024 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:55:42,025 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:55:42,025 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:55:42,025 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:55:42,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:55:41" (1/1) ... [2023-12-16 17:55:42,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:55:41" (1/1) ... [2023-12-16 17:55:42,047 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:55:41" (1/1) ... [2023-12-16 17:55:42,073 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 17:55:42,073 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:55:41" (1/1) ... [2023-12-16 17:55:42,073 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:55:41" (1/1) ... [2023-12-16 17:55:42,088 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:55:41" (1/1) ... [2023-12-16 17:55:42,110 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:55:41" (1/1) ... [2023-12-16 17:55:42,113 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:55:41" (1/1) ... [2023-12-16 17:55:42,116 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:55:41" (1/1) ... [2023-12-16 17:55:42,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:55:42,121 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:55:42,121 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:55:42,121 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:55:42,122 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:55:41" (1/1) ... [2023-12-16 17:55:42,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:55:42,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:55:42,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 17:55:42,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 17:55:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:55:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 17:55:42,201 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 17:55:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 17:55:42,202 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 17:55:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 17:55:42,203 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 17:55:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:55:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 17:55:42,203 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 17:55:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 17:55:42,204 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 17:55:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 17:55:42,204 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 17:55:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:55:42,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:55:42,324 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:55:42,326 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:55:43,061 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:55:43,144 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:55:43,145 INFO L309 CfgBuilder]: Removed 17 assume(true) statements. [2023-12-16 17:55:43,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:55:43 BoogieIcfgContainer [2023-12-16 17:55:43,145 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:55:43,148 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:55:43,149 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:55:43,152 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:55:43,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:55:41" (1/3) ... [2023-12-16 17:55:43,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f144abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:55:43, skipping insertion in model container [2023-12-16 17:55:43,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:55:41" (2/3) ... [2023-12-16 17:55:43,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f144abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:55:43, skipping insertion in model container [2023-12-16 17:55:43,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:55:43" (3/3) ... [2023-12-16 17:55:43,154 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.13.cil.c [2023-12-16 17:55:43,166 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:55:43,166 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:55:43,213 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:55:43,218 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;@15f96e29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:55:43,218 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:55:43,223 INFO L276 IsEmpty]: Start isEmpty. Operand has 366 states, 332 states have (on average 1.7409638554216869) internal successors, (578), 334 states have internal predecessors, (578), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 17:55:43,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:43,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:43,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:43,242 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:43,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:43,246 INFO L85 PathProgramCache]: Analyzing trace with hash -578172265, now seen corresponding path program 1 times [2023-12-16 17:55:43,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:43,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385045704] [2023-12-16 17:55:43,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:43,258 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:43,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:43,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:55:43,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 17:55:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:43,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:55:43,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:43,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:43,531 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:43,531 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:43,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385045704] [2023-12-16 17:55:43,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385045704] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:43,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:43,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:55:43,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304284876] [2023-12-16 17:55:43,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:43,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:55:43,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:43,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:55:43,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:55:43,568 INFO L87 Difference]: Start difference. First operand has 366 states, 332 states have (on average 1.7409638554216869) internal successors, (578), 334 states have internal predecessors, (578), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 2 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:43,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:55:43,693 INFO L93 Difference]: Finished difference Result 728 states and 1254 transitions. [2023-12-16 17:55:43,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:55:43,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 2 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:55:43,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:55:43,709 INFO L225 Difference]: With dead ends: 728 [2023-12-16 17:55:43,709 INFO L226 Difference]: Without dead ends: 364 [2023-12-16 17:55:43,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:55:43,719 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 589 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:55:43,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 545 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:55:43,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-12-16 17:55:43,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2023-12-16 17:55:43,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 331 states have (on average 1.6314199395770392) internal successors, (540), 332 states have internal predecessors, (540), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 17:55:43,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 592 transitions. [2023-12-16 17:55:43,770 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 592 transitions. Word has length 180 [2023-12-16 17:55:43,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:55:43,771 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 592 transitions. [2023-12-16 17:55:43,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 2 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:43,771 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 592 transitions. [2023-12-16 17:55:43,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:43,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:43,775 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:43,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 17:55:43,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:43,979 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:43,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:43,980 INFO L85 PathProgramCache]: Analyzing trace with hash -597713387, now seen corresponding path program 1 times [2023-12-16 17:55:43,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:43,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759386920] [2023-12-16 17:55:43,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:43,981 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:43,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:43,985 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:55:43,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:55:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:44,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:55:44,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:44,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:44,164 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:44,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:44,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759386920] [2023-12-16 17:55:44,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759386920] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:44,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:44,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:55:44,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621521587] [2023-12-16 17:55:44,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:44,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:55:44,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:44,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:55:44,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:55:44,167 INFO L87 Difference]: Start difference. First operand 364 states and 592 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 2 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:44,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:55:44,229 INFO L93 Difference]: Finished difference Result 716 states and 1163 transitions. [2023-12-16 17:55:44,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:55:44,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 2 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:55:44,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:55:44,231 INFO L225 Difference]: With dead ends: 716 [2023-12-16 17:55:44,231 INFO L226 Difference]: Without dead ends: 364 [2023-12-16 17:55:44,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:55:44,233 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 578 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:55:44,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 543 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:55:44,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-12-16 17:55:44,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2023-12-16 17:55:44,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 331 states have (on average 1.6283987915407856) internal successors, (539), 332 states have internal predecessors, (539), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 17:55:44,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 591 transitions. [2023-12-16 17:55:44,250 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 591 transitions. Word has length 180 [2023-12-16 17:55:44,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:55:44,251 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 591 transitions. [2023-12-16 17:55:44,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 2 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:44,251 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 591 transitions. [2023-12-16 17:55:44,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:44,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:44,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:44,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 17:55:44,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:44,461 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:44,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:44,461 INFO L85 PathProgramCache]: Analyzing trace with hash 810012563, now seen corresponding path program 1 times [2023-12-16 17:55:44,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:44,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41706260] [2023-12-16 17:55:44,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:44,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:44,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:44,467 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:55:44,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 17:55:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:44,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:55:44,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:44,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:44,756 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:44,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:44,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41706260] [2023-12-16 17:55:44,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41706260] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:44,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:44,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:55:44,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531804076] [2023-12-16 17:55:44,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:44,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:55:44,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:44,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:55:44,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:55:44,762 INFO L87 Difference]: Start difference. First operand 364 states and 591 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 3 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:45,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:55:45,510 INFO L93 Difference]: Finished difference Result 1105 states and 1826 transitions. [2023-12-16 17:55:45,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:55:45,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 3 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:55:45,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:55:45,515 INFO L225 Difference]: With dead ends: 1105 [2023-12-16 17:55:45,515 INFO L226 Difference]: Without dead ends: 760 [2023-12-16 17:55:45,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:55:45,517 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 1151 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 17:55:45,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 1514 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 17:55:45,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2023-12-16 17:55:45,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 730. [2023-12-16 17:55:45,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 669 states have (on average 1.6367713004484306) internal successors, (1095), 671 states have internal predecessors, (1095), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 17:55:45,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1190 transitions. [2023-12-16 17:55:45,543 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1190 transitions. Word has length 180 [2023-12-16 17:55:45,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:55:45,544 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 1190 transitions. [2023-12-16 17:55:45,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 3 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:45,544 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1190 transitions. [2023-12-16 17:55:45,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:45,546 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:45,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:45,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 17:55:45,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:45,751 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:45,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:45,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1832148366, now seen corresponding path program 1 times [2023-12-16 17:55:45,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:45,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1707692728] [2023-12-16 17:55:45,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:45,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:45,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:45,754 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:55:45,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 17:55:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:45,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:55:45,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:45,956 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:45,956 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:45,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1707692728] [2023-12-16 17:55:45,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1707692728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:45,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:45,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:55:45,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278508274] [2023-12-16 17:55:45,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:45,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:55:45,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:45,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:55:45,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:55:45,958 INFO L87 Difference]: Start difference. First operand 730 states and 1190 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:46,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:55:46,406 INFO L93 Difference]: Finished difference Result 1441 states and 2354 transitions. [2023-12-16 17:55:46,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:55:46,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:55:46,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:55:46,409 INFO L225 Difference]: With dead ends: 1441 [2023-12-16 17:55:46,410 INFO L226 Difference]: Without dead ends: 730 [2023-12-16 17:55:46,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:55:46,412 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 808 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:55:46,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 945 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:55:46,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-16 17:55:46,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 730. [2023-12-16 17:55:46,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 669 states have (on average 1.6263079222720478) internal successors, (1088), 671 states have internal predecessors, (1088), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 17:55:46,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1183 transitions. [2023-12-16 17:55:46,478 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1183 transitions. Word has length 180 [2023-12-16 17:55:46,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:55:46,478 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 1183 transitions. [2023-12-16 17:55:46,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:46,479 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1183 transitions. [2023-12-16 17:55:46,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:46,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:46,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:46,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 17:55:46,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:46,685 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:46,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:46,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1654375474, now seen corresponding path program 1 times [2023-12-16 17:55:46,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:46,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199593955] [2023-12-16 17:55:46,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:46,686 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:46,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:46,702 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) [2023-12-16 17:55:46,720 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 [2023-12-16 17:55:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:46,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:55:46,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:46,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:46,909 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:46,909 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:46,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [199593955] [2023-12-16 17:55:46,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [199593955] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:46,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:46,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:55:46,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968710064] [2023-12-16 17:55:46,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:46,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:55:46,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:46,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:55:46,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:55:46,911 INFO L87 Difference]: Start difference. First operand 730 states and 1183 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:47,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:55:47,398 INFO L93 Difference]: Finished difference Result 1441 states and 2340 transitions. [2023-12-16 17:55:47,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:55:47,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:55:47,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:55:47,402 INFO L225 Difference]: With dead ends: 1441 [2023-12-16 17:55:47,403 INFO L226 Difference]: Without dead ends: 730 [2023-12-16 17:55:47,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:55:47,409 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 801 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:55:47,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 938 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:55:47,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-16 17:55:47,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 730. [2023-12-16 17:55:47,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 669 states have (on average 1.6158445440956652) internal successors, (1081), 671 states have internal predecessors, (1081), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 17:55:47,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1176 transitions. [2023-12-16 17:55:47,443 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1176 transitions. Word has length 180 [2023-12-16 17:55:47,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:55:47,444 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 1176 transitions. [2023-12-16 17:55:47,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:47,444 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1176 transitions. [2023-12-16 17:55:47,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:47,445 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:47,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:47,463 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 [2023-12-16 17:55:47,650 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 [2023-12-16 17:55:47,650 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:47,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:47,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1215736334, now seen corresponding path program 1 times [2023-12-16 17:55:47,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:47,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049205318] [2023-12-16 17:55:47,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:47,651 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:47,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:47,669 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) [2023-12-16 17:55:47,670 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 [2023-12-16 17:55:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:47,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:55:47,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:47,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:47,860 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:47,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:47,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049205318] [2023-12-16 17:55:47,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1049205318] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:47,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:47,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:55:47,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4500266] [2023-12-16 17:55:47,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:47,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:55:47,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:47,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:55:47,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:55:47,868 INFO L87 Difference]: Start difference. First operand 730 states and 1176 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:48,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:55:48,328 INFO L93 Difference]: Finished difference Result 1441 states and 2326 transitions. [2023-12-16 17:55:48,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:55:48,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:55:48,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:55:48,332 INFO L225 Difference]: With dead ends: 1441 [2023-12-16 17:55:48,332 INFO L226 Difference]: Without dead ends: 730 [2023-12-16 17:55:48,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:55:48,335 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 795 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:55:48,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 931 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:55:48,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-16 17:55:48,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 730. [2023-12-16 17:55:48,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 669 states have (on average 1.6053811659192825) internal successors, (1074), 671 states have internal predecessors, (1074), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 17:55:48,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1169 transitions. [2023-12-16 17:55:48,373 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1169 transitions. Word has length 180 [2023-12-16 17:55:48,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:55:48,374 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 1169 transitions. [2023-12-16 17:55:48,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:48,375 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1169 transitions. [2023-12-16 17:55:48,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:48,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:48,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:48,383 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 [2023-12-16 17:55:48,584 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 [2023-12-16 17:55:48,584 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:48,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:48,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1446867918, now seen corresponding path program 1 times [2023-12-16 17:55:48,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:48,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803490345] [2023-12-16 17:55:48,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:48,586 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:48,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:48,606 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) [2023-12-16 17:55:48,636 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 [2023-12-16 17:55:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:48,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:55:48,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:48,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:48,822 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:48,822 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:48,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [803490345] [2023-12-16 17:55:48,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [803490345] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:48,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:48,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:55:48,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476231798] [2023-12-16 17:55:48,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:48,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:55:48,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:48,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:55:48,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:55:48,824 INFO L87 Difference]: Start difference. First operand 730 states and 1169 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:49,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:55:49,269 INFO L93 Difference]: Finished difference Result 1441 states and 2312 transitions. [2023-12-16 17:55:49,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:55:49,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:55:49,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:55:49,272 INFO L225 Difference]: With dead ends: 1441 [2023-12-16 17:55:49,272 INFO L226 Difference]: Without dead ends: 730 [2023-12-16 17:55:49,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:55:49,274 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 789 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:55:49,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 924 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:55:49,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-16 17:55:49,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 730. [2023-12-16 17:55:49,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 669 states have (on average 1.5949177877429) internal successors, (1067), 671 states have internal predecessors, (1067), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 17:55:49,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1162 transitions. [2023-12-16 17:55:49,300 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1162 transitions. Word has length 180 [2023-12-16 17:55:49,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:55:49,301 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 1162 transitions. [2023-12-16 17:55:49,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:49,301 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1162 transitions. [2023-12-16 17:55:49,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:49,302 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:49,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:49,315 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 [2023-12-16 17:55:49,513 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 [2023-12-16 17:55:49,514 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:49,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:49,514 INFO L85 PathProgramCache]: Analyzing trace with hash 208244210, now seen corresponding path program 1 times [2023-12-16 17:55:49,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:49,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370641869] [2023-12-16 17:55:49,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:49,515 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:49,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:49,516 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) [2023-12-16 17:55:49,562 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 [2023-12-16 17:55:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:49,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:55:49,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:49,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:49,728 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:49,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:49,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370641869] [2023-12-16 17:55:49,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370641869] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:49,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:49,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:55:49,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330325069] [2023-12-16 17:55:49,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:49,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:55:49,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:49,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:55:49,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:55:49,730 INFO L87 Difference]: Start difference. First operand 730 states and 1162 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:50,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:55:50,170 INFO L93 Difference]: Finished difference Result 1441 states and 2298 transitions. [2023-12-16 17:55:50,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:55:50,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:55:50,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:55:50,173 INFO L225 Difference]: With dead ends: 1441 [2023-12-16 17:55:50,173 INFO L226 Difference]: Without dead ends: 730 [2023-12-16 17:55:50,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:55:50,174 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 783 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:55:50,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 917 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:55:50,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-16 17:55:50,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 730. [2023-12-16 17:55:50,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 669 states have (on average 1.5844544095665172) internal successors, (1060), 671 states have internal predecessors, (1060), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 17:55:50,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1155 transitions. [2023-12-16 17:55:50,200 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1155 transitions. Word has length 180 [2023-12-16 17:55:50,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:55:50,201 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 1155 transitions. [2023-12-16 17:55:50,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:50,201 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1155 transitions. [2023-12-16 17:55:50,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:50,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:50,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:50,228 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 [2023-12-16 17:55:50,406 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 [2023-12-16 17:55:50,406 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:50,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:50,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1678027726, now seen corresponding path program 1 times [2023-12-16 17:55:50,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:50,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663629455] [2023-12-16 17:55:50,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:50,407 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:50,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:50,408 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) [2023-12-16 17:55:50,410 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 [2023-12-16 17:55:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:50,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:55:50,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:50,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:50,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:50,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:50,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663629455] [2023-12-16 17:55:50,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663629455] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:50,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:50,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:55:50,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104463503] [2023-12-16 17:55:50,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:50,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:55:50,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:50,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:55:50,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:55:50,608 INFO L87 Difference]: Start difference. First operand 730 states and 1155 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:51,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:55:51,110 INFO L93 Difference]: Finished difference Result 1441 states and 2284 transitions. [2023-12-16 17:55:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:55:51,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:55:51,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:55:51,115 INFO L225 Difference]: With dead ends: 1441 [2023-12-16 17:55:51,115 INFO L226 Difference]: Without dead ends: 730 [2023-12-16 17:55:51,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:55:51,118 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 777 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:55:51,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 910 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:55:51,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-16 17:55:51,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 730. [2023-12-16 17:55:51,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 669 states have (on average 1.5739910313901346) internal successors, (1053), 671 states have internal predecessors, (1053), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 17:55:51,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1148 transitions. [2023-12-16 17:55:51,146 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1148 transitions. Word has length 180 [2023-12-16 17:55:51,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:55:51,146 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 1148 transitions. [2023-12-16 17:55:51,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:51,146 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1148 transitions. [2023-12-16 17:55:51,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:51,147 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:51,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:51,152 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 [2023-12-16 17:55:51,352 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 [2023-12-16 17:55:51,352 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:51,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:51,356 INFO L85 PathProgramCache]: Analyzing trace with hash 216306160, now seen corresponding path program 1 times [2023-12-16 17:55:51,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:51,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508610103] [2023-12-16 17:55:51,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:51,356 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:51,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:51,358 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) [2023-12-16 17:55:51,359 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 [2023-12-16 17:55:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:51,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:55:51,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:51,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:51,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:51,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:51,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508610103] [2023-12-16 17:55:51,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1508610103] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:51,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:51,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:55:51,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432049373] [2023-12-16 17:55:51,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:51,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:55:51,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:51,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:55:51,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:55:51,555 INFO L87 Difference]: Start difference. First operand 730 states and 1148 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:52,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:55:52,059 INFO L93 Difference]: Finished difference Result 1441 states and 2270 transitions. [2023-12-16 17:55:52,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:55:52,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:55:52,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:55:52,062 INFO L225 Difference]: With dead ends: 1441 [2023-12-16 17:55:52,062 INFO L226 Difference]: Without dead ends: 730 [2023-12-16 17:55:52,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:55:52,064 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 771 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:55:52,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 903 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:55:52,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-16 17:55:52,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 730. [2023-12-16 17:55:52,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 669 states have (on average 1.5635276532137519) internal successors, (1046), 671 states have internal predecessors, (1046), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 17:55:52,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1141 transitions. [2023-12-16 17:55:52,089 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1141 transitions. Word has length 180 [2023-12-16 17:55:52,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:55:52,090 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 1141 transitions. [2023-12-16 17:55:52,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:52,090 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1141 transitions. [2023-12-16 17:55:52,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:52,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:52,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:52,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 17:55:52,295 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 [2023-12-16 17:55:52,296 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:52,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:52,296 INFO L85 PathProgramCache]: Analyzing trace with hash -692918224, now seen corresponding path program 1 times [2023-12-16 17:55:52,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:52,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034614501] [2023-12-16 17:55:52,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:52,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:52,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:52,298 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) [2023-12-16 17:55:52,329 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 [2023-12-16 17:55:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:52,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:55:52,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:52,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:52,508 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:52,508 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:52,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034614501] [2023-12-16 17:55:52,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034614501] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:52,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:52,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:55:52,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410492977] [2023-12-16 17:55:52,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:52,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:55:52,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:52,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:55:52,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:55:52,511 INFO L87 Difference]: Start difference. First operand 730 states and 1141 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:52,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:55:52,920 INFO L93 Difference]: Finished difference Result 1441 states and 2256 transitions. [2023-12-16 17:55:52,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:55:52,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:55:52,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:55:52,924 INFO L225 Difference]: With dead ends: 1441 [2023-12-16 17:55:52,924 INFO L226 Difference]: Without dead ends: 730 [2023-12-16 17:55:52,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:55:52,926 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 765 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:55:52,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 896 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:55:52,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-16 17:55:52,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 730. [2023-12-16 17:55:52,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 669 states have (on average 1.553064275037369) internal successors, (1039), 671 states have internal predecessors, (1039), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 17:55:52,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1134 transitions. [2023-12-16 17:55:52,953 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1134 transitions. Word has length 180 [2023-12-16 17:55:52,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:55:52,953 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 1134 transitions. [2023-12-16 17:55:52,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:52,954 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1134 transitions. [2023-12-16 17:55:52,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:52,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:52,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:52,961 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 (12)] Ended with exit code 0 [2023-12-16 17:55:53,159 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 [2023-12-16 17:55:53,160 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:53,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:53,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1969174032, now seen corresponding path program 1 times [2023-12-16 17:55:53,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:53,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156624583] [2023-12-16 17:55:53,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:53,161 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:53,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:53,162 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) [2023-12-16 17:55:53,191 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 [2023-12-16 17:55:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:53,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:55:53,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:53,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:53,364 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:53,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:53,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156624583] [2023-12-16 17:55:53,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156624583] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:53,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:53,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:55:53,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005353172] [2023-12-16 17:55:53,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:53,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:55:53,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:53,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:55:53,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:55:53,366 INFO L87 Difference]: Start difference. First operand 730 states and 1134 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:53,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:55:53,814 INFO L93 Difference]: Finished difference Result 1441 states and 2242 transitions. [2023-12-16 17:55:53,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:55:53,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:55:53,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:55:53,816 INFO L225 Difference]: With dead ends: 1441 [2023-12-16 17:55:53,816 INFO L226 Difference]: Without dead ends: 730 [2023-12-16 17:55:53,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:55:53,818 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 758 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:55:53,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 889 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:55:53,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-16 17:55:53,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 730. [2023-12-16 17:55:53,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 669 states have (on average 1.5426008968609866) internal successors, (1032), 671 states have internal predecessors, (1032), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 17:55:53,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1127 transitions. [2023-12-16 17:55:53,844 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1127 transitions. Word has length 180 [2023-12-16 17:55:53,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:55:53,844 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 1127 transitions. [2023-12-16 17:55:53,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:53,845 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1127 transitions. [2023-12-16 17:55:53,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:53,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:53,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:53,850 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 [2023-12-16 17:55:54,049 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 [2023-12-16 17:55:54,050 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:54,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:54,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1340335184, now seen corresponding path program 1 times [2023-12-16 17:55:54,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:54,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983673646] [2023-12-16 17:55:54,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:54,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:54,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:54,065 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) [2023-12-16 17:55:54,098 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 [2023-12-16 17:55:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:54,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:55:54,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:54,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:54,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:54,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:54,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983673646] [2023-12-16 17:55:54,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983673646] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:54,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:54,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:55:54,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750828722] [2023-12-16 17:55:54,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:54,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:55:54,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:54,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:55:54,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:55:54,282 INFO L87 Difference]: Start difference. First operand 730 states and 1127 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:54,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:55:54,685 INFO L93 Difference]: Finished difference Result 1441 states and 2228 transitions. [2023-12-16 17:55:54,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:55:54,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:55:54,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:55:54,688 INFO L225 Difference]: With dead ends: 1441 [2023-12-16 17:55:54,688 INFO L226 Difference]: Without dead ends: 730 [2023-12-16 17:55:54,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:55:54,690 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 752 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:55:54,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 882 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:55:54,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-16 17:55:54,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 730. [2023-12-16 17:55:54,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 669 states have (on average 1.5321375186846038) internal successors, (1025), 671 states have internal predecessors, (1025), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 17:55:54,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1120 transitions. [2023-12-16 17:55:54,719 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1120 transitions. Word has length 180 [2023-12-16 17:55:54,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:55:54,719 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 1120 transitions. [2023-12-16 17:55:54,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:54,719 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1120 transitions. [2023-12-16 17:55:54,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:54,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:54,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:54,734 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 [2023-12-16 17:55:54,925 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 [2023-12-16 17:55:54,925 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:54,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:54,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1458597392, now seen corresponding path program 1 times [2023-12-16 17:55:54,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:54,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618066756] [2023-12-16 17:55:54,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:54,926 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:54,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:54,927 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) [2023-12-16 17:55:54,931 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 [2023-12-16 17:55:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:55,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:55:55,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:55,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:55,143 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:55,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:55,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618066756] [2023-12-16 17:55:55,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618066756] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:55,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:55,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:55:55,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191915167] [2023-12-16 17:55:55,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:55,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:55:55,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:55,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:55:55,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:55:55,145 INFO L87 Difference]: Start difference. First operand 730 states and 1120 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:55,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:55:55,548 INFO L93 Difference]: Finished difference Result 1441 states and 2214 transitions. [2023-12-16 17:55:55,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:55:55,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:55:55,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:55:55,551 INFO L225 Difference]: With dead ends: 1441 [2023-12-16 17:55:55,551 INFO L226 Difference]: Without dead ends: 730 [2023-12-16 17:55:55,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:55:55,552 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 746 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:55:55,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 875 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:55:55,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-16 17:55:55,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 730. [2023-12-16 17:55:55,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 669 states have (on average 1.5216741405082213) internal successors, (1018), 671 states have internal predecessors, (1018), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 17:55:55,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1113 transitions. [2023-12-16 17:55:55,582 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1113 transitions. Word has length 180 [2023-12-16 17:55:55,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:55:55,582 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 1113 transitions. [2023-12-16 17:55:55,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:55,582 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1113 transitions. [2023-12-16 17:55:55,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:55,583 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:55,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:55,592 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 [2023-12-16 17:55:55,787 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 [2023-12-16 17:55:55,788 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:55,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:55,788 INFO L85 PathProgramCache]: Analyzing trace with hash 615797680, now seen corresponding path program 1 times [2023-12-16 17:55:55,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:55,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332679554] [2023-12-16 17:55:55,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:55,789 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:55,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:55,789 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) [2023-12-16 17:55:55,792 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 [2023-12-16 17:55:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:55,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:55:55,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:55,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:55,978 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:55,978 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:55,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332679554] [2023-12-16 17:55:55,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332679554] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:55,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:55,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:55:55,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271725034] [2023-12-16 17:55:55,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:55,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:55:55,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:55,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:55:55,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:55:55,979 INFO L87 Difference]: Start difference. First operand 730 states and 1113 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:56,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:55:56,529 INFO L93 Difference]: Finished difference Result 1619 states and 2489 transitions. [2023-12-16 17:55:56,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:55:56,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:55:56,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:55:56,533 INFO L225 Difference]: With dead ends: 1619 [2023-12-16 17:55:56,533 INFO L226 Difference]: Without dead ends: 908 [2023-12-16 17:55:56,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:55:56,537 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 863 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:55:56,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 869 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:55:56,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2023-12-16 17:55:56,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 908. [2023-12-16 17:55:56,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 841 states have (on average 1.502972651605232) internal successors, (1264), 843 states have internal predecessors, (1264), 49 states have call successors, (49), 16 states have call predecessors, (49), 17 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 17:55:56,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1363 transitions. [2023-12-16 17:55:56,587 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1363 transitions. Word has length 180 [2023-12-16 17:55:56,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:55:56,587 INFO L495 AbstractCegarLoop]: Abstraction has 908 states and 1363 transitions. [2023-12-16 17:55:56,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:56,587 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1363 transitions. [2023-12-16 17:55:56,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:56,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:56,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:56,608 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 [2023-12-16 17:55:56,792 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 [2023-12-16 17:55:56,793 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:56,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:56,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1534043664, now seen corresponding path program 1 times [2023-12-16 17:55:56,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:56,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224948668] [2023-12-16 17:55:56,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:56,794 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:56,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:56,795 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) [2023-12-16 17:55:56,796 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 [2023-12-16 17:55:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:56,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:55:56,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:56,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:56,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:56,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:56,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224948668] [2023-12-16 17:55:56,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [224948668] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:56,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:56,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:55:56,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453755715] [2023-12-16 17:55:56,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:56,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:55:56,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:56,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:55:56,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:55:56,994 INFO L87 Difference]: Start difference. First operand 908 states and 1363 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:57,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:55:57,505 INFO L93 Difference]: Finished difference Result 1975 states and 2989 transitions. [2023-12-16 17:55:57,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:55:57,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:55:57,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:55:57,509 INFO L225 Difference]: With dead ends: 1975 [2023-12-16 17:55:57,509 INFO L226 Difference]: Without dead ends: 1086 [2023-12-16 17:55:57,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:55:57,511 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 857 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:55:57,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 862 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:55:57,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2023-12-16 17:55:57,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 1086. [2023-12-16 17:55:57,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 1013 states have (on average 1.4866732477788747) internal successors, (1506), 1015 states have internal predecessors, (1506), 51 states have call successors, (51), 20 states have call predecessors, (51), 21 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-16 17:55:57,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1609 transitions. [2023-12-16 17:55:57,559 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1609 transitions. Word has length 180 [2023-12-16 17:55:57,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:55:57,559 INFO L495 AbstractCegarLoop]: Abstraction has 1086 states and 1609 transitions. [2023-12-16 17:55:57,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:57,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1609 transitions. [2023-12-16 17:55:57,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:57,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:57,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:57,567 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 [2023-12-16 17:55:57,772 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 [2023-12-16 17:55:57,773 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:57,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:57,773 INFO L85 PathProgramCache]: Analyzing trace with hash -2073010931, now seen corresponding path program 1 times [2023-12-16 17:55:57,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:57,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897793780] [2023-12-16 17:55:57,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:57,774 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:57,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:57,775 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) [2023-12-16 17:55:57,776 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 [2023-12-16 17:55:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:57,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:55:57,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:57,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:57,967 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:57,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:57,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897793780] [2023-12-16 17:55:57,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897793780] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:57,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:57,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:55:57,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518961530] [2023-12-16 17:55:57,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:57,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:55:57,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:57,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:55:57,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:55:57,969 INFO L87 Difference]: Start difference. First operand 1086 states and 1609 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:58,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:55:58,519 INFO L93 Difference]: Finished difference Result 2331 states and 3481 transitions. [2023-12-16 17:55:58,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:55:58,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:55:58,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:55:58,522 INFO L225 Difference]: With dead ends: 2331 [2023-12-16 17:55:58,523 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 17:55:58,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:55:58,525 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 850 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:55:58,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 855 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:55:58,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 17:55:58,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 17:55:58,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1185 states have (on average 1.471729957805907) internal successors, (1744), 1187 states have internal predecessors, (1744), 53 states have call successors, (53), 24 states have call predecessors, (53), 25 states have return successors, (54), 53 states have call predecessors, (54), 53 states have call successors, (54) [2023-12-16 17:55:58,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1851 transitions. [2023-12-16 17:55:58,590 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1851 transitions. Word has length 180 [2023-12-16 17:55:58,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:55:58,590 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 1851 transitions. [2023-12-16 17:55:58,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:58,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1851 transitions. [2023-12-16 17:55:58,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:58,592 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:58,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:58,598 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 (18)] Forceful destruction successful, exit code 0 [2023-12-16 17:55:58,796 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 [2023-12-16 17:55:58,796 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:58,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:58,796 INFO L85 PathProgramCache]: Analyzing trace with hash -2001638258, now seen corresponding path program 1 times [2023-12-16 17:55:58,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:58,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598333072] [2023-12-16 17:55:58,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:58,797 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:58,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:58,798 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) [2023-12-16 17:55:58,799 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 [2023-12-16 17:55:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:58,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:55:58,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:58,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:58,989 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:58,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:58,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598333072] [2023-12-16 17:55:58,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1598333072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:58,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:58,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:55:58,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849931369] [2023-12-16 17:55:58,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:58,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:55:58,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:58,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:55:58,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:55:58,990 INFO L87 Difference]: Start difference. First operand 1264 states and 1851 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:59,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:55:59,528 INFO L93 Difference]: Finished difference Result 2687 states and 3965 transitions. [2023-12-16 17:55:59,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:55:59,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:55:59,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:55:59,532 INFO L225 Difference]: With dead ends: 2687 [2023-12-16 17:55:59,532 INFO L226 Difference]: Without dead ends: 1442 [2023-12-16 17:55:59,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:55:59,534 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 843 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:55:59,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 848 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:55:59,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2023-12-16 17:55:59,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1442. [2023-12-16 17:55:59,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1357 states have (on average 1.4576271186440677) internal successors, (1978), 1359 states have internal predecessors, (1978), 55 states have call successors, (55), 28 states have call predecessors, (55), 29 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-16 17:55:59,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 2089 transitions. [2023-12-16 17:55:59,581 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 2089 transitions. Word has length 180 [2023-12-16 17:55:59,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:55:59,581 INFO L495 AbstractCegarLoop]: Abstraction has 1442 states and 2089 transitions. [2023-12-16 17:55:59,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:55:59,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 2089 transitions. [2023-12-16 17:55:59,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:55:59,582 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:55:59,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:55:59,586 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 [2023-12-16 17:55:59,786 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 [2023-12-16 17:55:59,786 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:55:59,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:55:59,787 INFO L85 PathProgramCache]: Analyzing trace with hash -92467634, now seen corresponding path program 1 times [2023-12-16 17:55:59,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:55:59,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [762251483] [2023-12-16 17:55:59,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:55:59,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:55:59,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:55:59,788 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) [2023-12-16 17:55:59,808 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 [2023-12-16 17:55:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:55:59,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:55:59,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:55:59,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:55:59,971 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:55:59,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:55:59,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [762251483] [2023-12-16 17:55:59,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [762251483] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:55:59,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:55:59,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:55:59,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807648647] [2023-12-16 17:55:59,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:55:59,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:55:59,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:55:59,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:55:59,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:55:59,973 INFO L87 Difference]: Start difference. First operand 1442 states and 2089 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:00,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:00,526 INFO L93 Difference]: Finished difference Result 3043 states and 4441 transitions. [2023-12-16 17:56:00,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:00,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:00,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:00,531 INFO L225 Difference]: With dead ends: 3043 [2023-12-16 17:56:00,531 INFO L226 Difference]: Without dead ends: 1620 [2023-12-16 17:56:00,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:00,534 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 835 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:00,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 841 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:56:00,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2023-12-16 17:56:00,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1620. [2023-12-16 17:56:00,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1529 states have (on average 1.4440810987573578) internal successors, (2208), 1531 states have internal predecessors, (2208), 57 states have call successors, (57), 32 states have call predecessors, (57), 33 states have return successors, (58), 57 states have call predecessors, (58), 57 states have call successors, (58) [2023-12-16 17:56:00,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2323 transitions. [2023-12-16 17:56:00,610 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2323 transitions. Word has length 180 [2023-12-16 17:56:00,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:00,610 INFO L495 AbstractCegarLoop]: Abstraction has 1620 states and 2323 transitions. [2023-12-16 17:56:00,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:00,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2323 transitions. [2023-12-16 17:56:00,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:00,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:00,611 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:00,616 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 (20)] Ended with exit code 0 [2023-12-16 17:56:00,814 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 [2023-12-16 17:56:00,815 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:00,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:00,815 INFO L85 PathProgramCache]: Analyzing trace with hash 977674254, now seen corresponding path program 1 times [2023-12-16 17:56:00,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:00,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1247093273] [2023-12-16 17:56:00,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:00,816 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:00,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:00,817 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) [2023-12-16 17:56:00,846 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 [2023-12-16 17:56:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:00,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:00,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:01,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:01,019 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:01,019 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:01,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1247093273] [2023-12-16 17:56:01,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1247093273] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:01,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:01,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:01,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242663261] [2023-12-16 17:56:01,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:01,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:01,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:01,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:01,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:01,020 INFO L87 Difference]: Start difference. First operand 1620 states and 2323 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:01,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:01,571 INFO L93 Difference]: Finished difference Result 3399 states and 4909 transitions. [2023-12-16 17:56:01,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:01,578 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:01,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:01,583 INFO L225 Difference]: With dead ends: 3399 [2023-12-16 17:56:01,583 INFO L226 Difference]: Without dead ends: 1798 [2023-12-16 17:56:01,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:01,587 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 828 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:01,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 834 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:56:01,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2023-12-16 17:56:01,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1798. [2023-12-16 17:56:01,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1701 states have (on average 1.430922986478542) internal successors, (2434), 1703 states have internal predecessors, (2434), 59 states have call successors, (59), 36 states have call predecessors, (59), 37 states have return successors, (60), 59 states have call predecessors, (60), 59 states have call successors, (60) [2023-12-16 17:56:01,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2553 transitions. [2023-12-16 17:56:01,672 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2553 transitions. Word has length 180 [2023-12-16 17:56:01,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:01,672 INFO L495 AbstractCegarLoop]: Abstraction has 1798 states and 2553 transitions. [2023-12-16 17:56:01,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:01,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2553 transitions. [2023-12-16 17:56:01,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:01,674 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:01,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:01,694 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 (21)] Ended with exit code 0 [2023-12-16 17:56:01,878 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 [2023-12-16 17:56:01,878 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:01,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:01,879 INFO L85 PathProgramCache]: Analyzing trace with hash -87377393, now seen corresponding path program 1 times [2023-12-16 17:56:01,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:01,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529392684] [2023-12-16 17:56:01,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:01,879 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:01,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:01,880 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) [2023-12-16 17:56:01,882 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 (22)] Waiting until timeout for monitored process [2023-12-16 17:56:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:02,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:02,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:02,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:02,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:02,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:02,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529392684] [2023-12-16 17:56:02,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529392684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:02,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:02,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:02,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878616331] [2023-12-16 17:56:02,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:02,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:02,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:02,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:02,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:02,073 INFO L87 Difference]: Start difference. First operand 1798 states and 2553 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:02,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:02,607 INFO L93 Difference]: Finished difference Result 3755 states and 5369 transitions. [2023-12-16 17:56:02,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:02,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:02,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:02,612 INFO L225 Difference]: With dead ends: 3755 [2023-12-16 17:56:02,612 INFO L226 Difference]: Without dead ends: 1976 [2023-12-16 17:56:02,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:02,615 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 821 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:02,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 827 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:56:02,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2023-12-16 17:56:02,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1976. [2023-12-16 17:56:02,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1873 states have (on average 1.418045915643353) internal successors, (2656), 1875 states have internal predecessors, (2656), 61 states have call successors, (61), 40 states have call predecessors, (61), 41 states have return successors, (62), 61 states have call predecessors, (62), 61 states have call successors, (62) [2023-12-16 17:56:02,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 2779 transitions. [2023-12-16 17:56:02,679 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 2779 transitions. Word has length 180 [2023-12-16 17:56:02,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:02,679 INFO L495 AbstractCegarLoop]: Abstraction has 1976 states and 2779 transitions. [2023-12-16 17:56:02,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:02,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 2779 transitions. [2023-12-16 17:56:02,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:02,680 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:02,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:02,687 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 [2023-12-16 17:56:02,885 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 [2023-12-16 17:56:02,885 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:02,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:02,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1227701199, now seen corresponding path program 1 times [2023-12-16 17:56:02,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:02,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526050451] [2023-12-16 17:56:02,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:02,886 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:02,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:02,887 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) [2023-12-16 17:56:02,895 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 [2023-12-16 17:56:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:03,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:03,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:03,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:03,084 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:03,084 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:03,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526050451] [2023-12-16 17:56:03,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526050451] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:03,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:03,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:03,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945180188] [2023-12-16 17:56:03,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:03,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:03,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:03,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:03,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:03,086 INFO L87 Difference]: Start difference. First operand 1976 states and 2779 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:03,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:03,671 INFO L93 Difference]: Finished difference Result 4111 states and 5821 transitions. [2023-12-16 17:56:03,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:03,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:03,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:03,679 INFO L225 Difference]: With dead ends: 4111 [2023-12-16 17:56:03,679 INFO L226 Difference]: Without dead ends: 2154 [2023-12-16 17:56:03,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:03,682 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 814 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:03,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 820 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:56:03,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2023-12-16 17:56:03,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 2154. [2023-12-16 17:56:03,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2154 states, 2045 states have (on average 1.4053789731051345) internal successors, (2874), 2047 states have internal predecessors, (2874), 63 states have call successors, (63), 44 states have call predecessors, (63), 45 states have return successors, (64), 63 states have call predecessors, (64), 63 states have call successors, (64) [2023-12-16 17:56:03,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2154 states to 2154 states and 3001 transitions. [2023-12-16 17:56:03,754 INFO L78 Accepts]: Start accepts. Automaton has 2154 states and 3001 transitions. Word has length 180 [2023-12-16 17:56:03,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:03,754 INFO L495 AbstractCegarLoop]: Abstraction has 2154 states and 3001 transitions. [2023-12-16 17:56:03,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:03,755 INFO L276 IsEmpty]: Start isEmpty. Operand 2154 states and 3001 transitions. [2023-12-16 17:56:03,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:03,756 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:03,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:03,760 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 [2023-12-16 17:56:03,960 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 [2023-12-16 17:56:03,960 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:03,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:03,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1948185360, now seen corresponding path program 1 times [2023-12-16 17:56:03,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:03,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486035144] [2023-12-16 17:56:03,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:03,962 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:03,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:03,973 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) [2023-12-16 17:56:04,017 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 [2023-12-16 17:56:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:04,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:04,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:04,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:04,197 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:04,197 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:04,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486035144] [2023-12-16 17:56:04,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486035144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:04,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:04,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:04,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368756463] [2023-12-16 17:56:04,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:04,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:04,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:04,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:04,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:04,198 INFO L87 Difference]: Start difference. First operand 2154 states and 3001 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:04,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:04,783 INFO L93 Difference]: Finished difference Result 4467 states and 6265 transitions. [2023-12-16 17:56:04,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:04,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:04,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:04,789 INFO L225 Difference]: With dead ends: 4467 [2023-12-16 17:56:04,789 INFO L226 Difference]: Without dead ends: 2332 [2023-12-16 17:56:04,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:04,793 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 807 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:04,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 813 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:56:04,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2332 states. [2023-12-16 17:56:04,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2332 to 2332. [2023-12-16 17:56:04,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2332 states, 2217 states have (on average 1.3928732521425349) internal successors, (3088), 2219 states have internal predecessors, (3088), 65 states have call successors, (65), 48 states have call predecessors, (65), 49 states have return successors, (66), 65 states have call predecessors, (66), 65 states have call successors, (66) [2023-12-16 17:56:04,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 3219 transitions. [2023-12-16 17:56:04,868 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 3219 transitions. Word has length 180 [2023-12-16 17:56:04,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:04,868 INFO L495 AbstractCegarLoop]: Abstraction has 2332 states and 3219 transitions. [2023-12-16 17:56:04,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:04,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 3219 transitions. [2023-12-16 17:56:04,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:04,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:04,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:04,888 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 (24)] Ended with exit code 0 [2023-12-16 17:56:05,073 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 [2023-12-16 17:56:05,074 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:05,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:05,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1928893234, now seen corresponding path program 1 times [2023-12-16 17:56:05,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:05,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292395811] [2023-12-16 17:56:05,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:05,075 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:05,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:05,078 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) [2023-12-16 17:56:05,080 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 [2023-12-16 17:56:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:05,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:05,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:05,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:05,260 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:05,260 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:05,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292395811] [2023-12-16 17:56:05,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292395811] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:05,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:05,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:05,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590443202] [2023-12-16 17:56:05,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:05,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:05,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:05,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:05,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:05,261 INFO L87 Difference]: Start difference. First operand 2332 states and 3219 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:05,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:05,838 INFO L93 Difference]: Finished difference Result 4823 states and 6701 transitions. [2023-12-16 17:56:05,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:05,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:05,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:05,844 INFO L225 Difference]: With dead ends: 4823 [2023-12-16 17:56:05,844 INFO L226 Difference]: Without dead ends: 2510 [2023-12-16 17:56:05,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:05,848 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 800 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:05,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 806 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:56:05,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2510 states. [2023-12-16 17:56:05,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2510 to 2510. [2023-12-16 17:56:05,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2510 states, 2389 states have (on average 1.3804939305148598) internal successors, (3298), 2391 states have internal predecessors, (3298), 67 states have call successors, (67), 52 states have call predecessors, (67), 53 states have return successors, (68), 67 states have call predecessors, (68), 67 states have call successors, (68) [2023-12-16 17:56:05,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2510 states to 2510 states and 3433 transitions. [2023-12-16 17:56:05,945 INFO L78 Accepts]: Start accepts. Automaton has 2510 states and 3433 transitions. Word has length 180 [2023-12-16 17:56:05,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:05,945 INFO L495 AbstractCegarLoop]: Abstraction has 2510 states and 3433 transitions. [2023-12-16 17:56:05,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:05,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2510 states and 3433 transitions. [2023-12-16 17:56:05,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:05,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:05,946 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:05,950 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 [2023-12-16 17:56:06,150 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 [2023-12-16 17:56:06,151 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:06,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:06,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1876808015, now seen corresponding path program 1 times [2023-12-16 17:56:06,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:06,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466892299] [2023-12-16 17:56:06,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:06,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:06,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:06,153 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) [2023-12-16 17:56:06,155 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 [2023-12-16 17:56:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:06,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:06,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:06,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:06,349 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:06,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:06,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466892299] [2023-12-16 17:56:06,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466892299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:06,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:06,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:06,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583464618] [2023-12-16 17:56:06,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:06,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:06,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:06,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:06,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:06,351 INFO L87 Difference]: Start difference. First operand 2510 states and 3433 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:06,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:06,932 INFO L93 Difference]: Finished difference Result 5179 states and 7129 transitions. [2023-12-16 17:56:06,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:06,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:06,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:06,938 INFO L225 Difference]: With dead ends: 5179 [2023-12-16 17:56:06,938 INFO L226 Difference]: Without dead ends: 2688 [2023-12-16 17:56:06,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:06,941 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 793 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:06,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 799 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:56:06,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2688 states. [2023-12-16 17:56:07,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2688 to 2688. [2023-12-16 17:56:07,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2688 states, 2561 states have (on average 1.3682155408043732) internal successors, (3504), 2563 states have internal predecessors, (3504), 69 states have call successors, (69), 56 states have call predecessors, (69), 57 states have return successors, (70), 69 states have call predecessors, (70), 69 states have call successors, (70) [2023-12-16 17:56:07,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2688 states to 2688 states and 3643 transitions. [2023-12-16 17:56:07,031 INFO L78 Accepts]: Start accepts. Automaton has 2688 states and 3643 transitions. Word has length 180 [2023-12-16 17:56:07,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:07,031 INFO L495 AbstractCegarLoop]: Abstraction has 2688 states and 3643 transitions. [2023-12-16 17:56:07,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:07,031 INFO L276 IsEmpty]: Start isEmpty. Operand 2688 states and 3643 transitions. [2023-12-16 17:56:07,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:07,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:07,033 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:07,054 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 [2023-12-16 17:56:07,237 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 [2023-12-16 17:56:07,237 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:07,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:07,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1496186834, now seen corresponding path program 1 times [2023-12-16 17:56:07,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:07,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32153013] [2023-12-16 17:56:07,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:07,238 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:07,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:07,239 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) [2023-12-16 17:56:07,240 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 [2023-12-16 17:56:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:07,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:07,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:07,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:07,390 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:07,391 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:07,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32153013] [2023-12-16 17:56:07,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32153013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:07,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:07,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:07,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702671804] [2023-12-16 17:56:07,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:07,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:07,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:07,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:07,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:07,392 INFO L87 Difference]: Start difference. First operand 2688 states and 3643 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:07,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:07,632 INFO L93 Difference]: Finished difference Result 6340 states and 8650 transitions. [2023-12-16 17:56:07,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:56:07,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:07,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:07,653 INFO L225 Difference]: With dead ends: 6340 [2023-12-16 17:56:07,653 INFO L226 Difference]: Without dead ends: 3672 [2023-12-16 17:56:07,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:07,659 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 119 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:07,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1429 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:07,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3672 states. [2023-12-16 17:56:07,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3672 to 2712. [2023-12-16 17:56:07,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2712 states, 2585 states have (on average 1.3601547388781432) internal successors, (3516), 2587 states have internal predecessors, (3516), 69 states have call successors, (69), 56 states have call predecessors, (69), 57 states have return successors, (70), 69 states have call predecessors, (70), 69 states have call successors, (70) [2023-12-16 17:56:07,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2712 states to 2712 states and 3655 transitions. [2023-12-16 17:56:07,781 INFO L78 Accepts]: Start accepts. Automaton has 2712 states and 3655 transitions. Word has length 180 [2023-12-16 17:56:07,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:07,782 INFO L495 AbstractCegarLoop]: Abstraction has 2712 states and 3655 transitions. [2023-12-16 17:56:07,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:07,782 INFO L276 IsEmpty]: Start isEmpty. Operand 2712 states and 3655 transitions. [2023-12-16 17:56:07,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:07,783 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:07,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:07,787 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 [2023-12-16 17:56:07,987 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 [2023-12-16 17:56:07,988 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:07,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:07,988 INFO L85 PathProgramCache]: Analyzing trace with hash 2092183856, now seen corresponding path program 1 times [2023-12-16 17:56:07,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:07,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745288130] [2023-12-16 17:56:07,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:07,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:07,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:07,991 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) [2023-12-16 17:56:08,056 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 [2023-12-16 17:56:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:08,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:08,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:08,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:08,165 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:08,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:08,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745288130] [2023-12-16 17:56:08,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745288130] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:08,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:08,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:08,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420181802] [2023-12-16 17:56:08,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:08,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:08,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:08,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:08,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:08,166 INFO L87 Difference]: Start difference. First operand 2712 states and 3655 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:08,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:08,338 INFO L93 Difference]: Finished difference Result 5556 states and 7535 transitions. [2023-12-16 17:56:08,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:56:08,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:08,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:08,345 INFO L225 Difference]: With dead ends: 5556 [2023-12-16 17:56:08,345 INFO L226 Difference]: Without dead ends: 2864 [2023-12-16 17:56:08,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:08,348 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 110 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:08,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1416 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:08,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2023-12-16 17:56:08,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 2716. [2023-12-16 17:56:08,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2716 states, 2589 states have (on average 1.3511008111239862) internal successors, (3498), 2591 states have internal predecessors, (3498), 69 states have call successors, (69), 56 states have call predecessors, (69), 57 states have return successors, (70), 69 states have call predecessors, (70), 69 states have call successors, (70) [2023-12-16 17:56:08,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 3637 transitions. [2023-12-16 17:56:08,434 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 3637 transitions. Word has length 180 [2023-12-16 17:56:08,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:08,434 INFO L495 AbstractCegarLoop]: Abstraction has 2716 states and 3637 transitions. [2023-12-16 17:56:08,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:08,434 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 3637 transitions. [2023-12-16 17:56:08,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:08,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:08,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:08,454 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 (28)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:08,639 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 [2023-12-16 17:56:08,640 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:08,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:08,640 INFO L85 PathProgramCache]: Analyzing trace with hash 999548654, now seen corresponding path program 1 times [2023-12-16 17:56:08,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:08,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794219522] [2023-12-16 17:56:08,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:08,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:08,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:08,642 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) [2023-12-16 17:56:08,643 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 (29)] Waiting until timeout for monitored process [2023-12-16 17:56:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:08,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:08,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:08,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:08,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:08,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:08,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794219522] [2023-12-16 17:56:08,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794219522] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:08,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:08,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:08,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847192545] [2023-12-16 17:56:08,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:08,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:08,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:08,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:08,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:08,780 INFO L87 Difference]: Start difference. First operand 2716 states and 3637 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:08,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:08,953 INFO L93 Difference]: Finished difference Result 5552 states and 7483 transitions. [2023-12-16 17:56:08,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:56:08,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:08,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:08,959 INFO L225 Difference]: With dead ends: 5552 [2023-12-16 17:56:08,960 INFO L226 Difference]: Without dead ends: 2856 [2023-12-16 17:56:08,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:08,966 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 101 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:08,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1417 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:08,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2023-12-16 17:56:09,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2720. [2023-12-16 17:56:09,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2720 states, 2593 states have (on average 1.3420748168145005) internal successors, (3480), 2595 states have internal predecessors, (3480), 69 states have call successors, (69), 56 states have call predecessors, (69), 57 states have return successors, (70), 69 states have call predecessors, (70), 69 states have call successors, (70) [2023-12-16 17:56:09,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2720 states to 2720 states and 3619 transitions. [2023-12-16 17:56:09,060 INFO L78 Accepts]: Start accepts. Automaton has 2720 states and 3619 transitions. Word has length 180 [2023-12-16 17:56:09,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:09,060 INFO L495 AbstractCegarLoop]: Abstraction has 2720 states and 3619 transitions. [2023-12-16 17:56:09,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:09,061 INFO L276 IsEmpty]: Start isEmpty. Operand 2720 states and 3619 transitions. [2023-12-16 17:56:09,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:09,062 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:09,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:09,088 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 (29)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:09,266 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 [2023-12-16 17:56:09,266 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:09,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:09,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1366486416, now seen corresponding path program 1 times [2023-12-16 17:56:09,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:09,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657874384] [2023-12-16 17:56:09,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:09,267 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:09,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:09,269 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) [2023-12-16 17:56:09,270 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 [2023-12-16 17:56:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:09,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:09,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:09,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:09,404 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:09,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:09,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657874384] [2023-12-16 17:56:09,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1657874384] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:09,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:09,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:09,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755785283] [2023-12-16 17:56:09,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:09,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:09,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:09,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:09,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:09,405 INFO L87 Difference]: Start difference. First operand 2720 states and 3619 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:09,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:09,587 INFO L93 Difference]: Finished difference Result 5548 states and 7431 transitions. [2023-12-16 17:56:09,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:56:09,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:09,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:09,599 INFO L225 Difference]: With dead ends: 5548 [2023-12-16 17:56:09,599 INFO L226 Difference]: Without dead ends: 2848 [2023-12-16 17:56:09,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:09,607 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 92 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:09,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1418 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:09,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2848 states. [2023-12-16 17:56:09,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 2724. [2023-12-16 17:56:09,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2724 states, 2597 states have (on average 1.3330766268771659) internal successors, (3462), 2599 states have internal predecessors, (3462), 69 states have call successors, (69), 56 states have call predecessors, (69), 57 states have return successors, (70), 69 states have call predecessors, (70), 69 states have call successors, (70) [2023-12-16 17:56:09,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 3601 transitions. [2023-12-16 17:56:09,726 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 3601 transitions. Word has length 180 [2023-12-16 17:56:09,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:09,726 INFO L495 AbstractCegarLoop]: Abstraction has 2724 states and 3601 transitions. [2023-12-16 17:56:09,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:09,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 3601 transitions. [2023-12-16 17:56:09,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:09,727 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:09,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:09,734 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 (30)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:09,932 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 [2023-12-16 17:56:09,932 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:09,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:09,933 INFO L85 PathProgramCache]: Analyzing trace with hash 797130158, now seen corresponding path program 1 times [2023-12-16 17:56:09,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:09,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208113835] [2023-12-16 17:56:09,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:09,933 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:09,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:09,934 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) [2023-12-16 17:56:09,952 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 [2023-12-16 17:56:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:10,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:56:10,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:10,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:10,156 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:10,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:10,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208113835] [2023-12-16 17:56:10,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208113835] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:10,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:10,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:56:10,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505262660] [2023-12-16 17:56:10,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:10,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:56:10,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:10,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:56:10,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:10,157 INFO L87 Difference]: Start difference. First operand 2724 states and 3601 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 2 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:10,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:10,406 INFO L93 Difference]: Finished difference Result 7921 states and 10491 transitions. [2023-12-16 17:56:10,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:56:10,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 2 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:10,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:10,416 INFO L225 Difference]: With dead ends: 7921 [2023-12-16 17:56:10,416 INFO L226 Difference]: Without dead ends: 5217 [2023-12-16 17:56:10,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:10,419 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 436 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:10,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 976 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:10,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5217 states. [2023-12-16 17:56:10,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5217 to 5213. [2023-12-16 17:56:10,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 4972 states have (on average 1.32461786001609) internal successors, (6586), 4975 states have internal predecessors, (6586), 130 states have call successors, (130), 108 states have call predecessors, (130), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-16 17:56:10,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 6848 transitions. [2023-12-16 17:56:10,614 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 6848 transitions. Word has length 180 [2023-12-16 17:56:10,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:10,615 INFO L495 AbstractCegarLoop]: Abstraction has 5213 states and 6848 transitions. [2023-12-16 17:56:10,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 2 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:10,615 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 6848 transitions. [2023-12-16 17:56:10,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:10,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:10,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:10,622 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 [2023-12-16 17:56:10,820 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 [2023-12-16 17:56:10,820 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:10,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:10,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1182456785, now seen corresponding path program 1 times [2023-12-16 17:56:10,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:10,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106555557] [2023-12-16 17:56:10,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:10,821 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:10,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:10,833 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) [2023-12-16 17:56:10,833 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 [2023-12-16 17:56:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:10,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:10,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:10,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:10,967 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:10,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:10,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106555557] [2023-12-16 17:56:10,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106555557] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:10,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:10,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:10,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260869834] [2023-12-16 17:56:10,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:10,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:10,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:10,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:10,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:10,968 INFO L87 Difference]: Start difference. First operand 5213 states and 6848 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:11,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:11,238 INFO L93 Difference]: Finished difference Result 11654 states and 15461 transitions. [2023-12-16 17:56:11,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:56:11,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:11,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:11,251 INFO L225 Difference]: With dead ends: 11654 [2023-12-16 17:56:11,251 INFO L226 Difference]: Without dead ends: 6461 [2023-12-16 17:56:11,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:11,258 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 74 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:11,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1434 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:11,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6461 states. [2023-12-16 17:56:11,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6461 to 5261. [2023-12-16 17:56:11,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5020 states have (on average 1.3171314741035856) internal successors, (6612), 5023 states have internal predecessors, (6612), 130 states have call successors, (130), 108 states have call predecessors, (130), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-16 17:56:11,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 6874 transitions. [2023-12-16 17:56:11,487 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 6874 transitions. Word has length 180 [2023-12-16 17:56:11,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:11,487 INFO L495 AbstractCegarLoop]: Abstraction has 5261 states and 6874 transitions. [2023-12-16 17:56:11,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:11,487 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 6874 transitions. [2023-12-16 17:56:11,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:11,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:11,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:11,497 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 [2023-12-16 17:56:11,694 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 [2023-12-16 17:56:11,695 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:11,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:11,695 INFO L85 PathProgramCache]: Analyzing trace with hash 715039981, now seen corresponding path program 1 times [2023-12-16 17:56:11,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:11,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396043538] [2023-12-16 17:56:11,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:11,696 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:11,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:11,709 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) [2023-12-16 17:56:11,744 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 [2023-12-16 17:56:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:11,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:11,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:11,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:11,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:11,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:11,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396043538] [2023-12-16 17:56:11,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396043538] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:11,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:11,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:11,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140049849] [2023-12-16 17:56:11,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:11,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:11,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:11,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:11,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:11,883 INFO L87 Difference]: Start difference. First operand 5261 states and 6874 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:12,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:12,156 INFO L93 Difference]: Finished difference Result 10594 states and 13940 transitions. [2023-12-16 17:56:12,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:56:12,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:12,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:12,170 INFO L225 Difference]: With dead ends: 10594 [2023-12-16 17:56:12,170 INFO L226 Difference]: Without dead ends: 5353 [2023-12-16 17:56:12,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:12,177 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 65 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:12,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1420 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:12,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5353 states. [2023-12-16 17:56:12,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5353 to 5265. [2023-12-16 17:56:12,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5024 states have (on average 1.3081210191082802) internal successors, (6572), 5027 states have internal predecessors, (6572), 130 states have call successors, (130), 108 states have call predecessors, (130), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-16 17:56:12,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 6834 transitions. [2023-12-16 17:56:12,403 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 6834 transitions. Word has length 180 [2023-12-16 17:56:12,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:12,403 INFO L495 AbstractCegarLoop]: Abstraction has 5265 states and 6834 transitions. [2023-12-16 17:56:12,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:12,404 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 6834 transitions. [2023-12-16 17:56:12,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:12,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:12,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:12,411 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 [2023-12-16 17:56:12,608 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 [2023-12-16 17:56:12,609 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:12,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:12,609 INFO L85 PathProgramCache]: Analyzing trace with hash 2066425199, now seen corresponding path program 1 times [2023-12-16 17:56:12,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:12,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387780162] [2023-12-16 17:56:12,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:12,610 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:12,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:12,629 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) [2023-12-16 17:56:12,644 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 [2023-12-16 17:56:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:12,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:12,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:12,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:12,780 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:12,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:12,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387780162] [2023-12-16 17:56:12,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387780162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:12,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:12,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:12,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762745194] [2023-12-16 17:56:12,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:12,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:12,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:12,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:12,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:12,782 INFO L87 Difference]: Start difference. First operand 5265 states and 6834 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:13,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:13,046 INFO L93 Difference]: Finished difference Result 10670 states and 13952 transitions. [2023-12-16 17:56:13,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:56:13,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:13,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:13,056 INFO L225 Difference]: With dead ends: 10670 [2023-12-16 17:56:13,056 INFO L226 Difference]: Without dead ends: 5425 [2023-12-16 17:56:13,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:13,061 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 56 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:13,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1421 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:13,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5425 states. [2023-12-16 17:56:13,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5425 to 5273. [2023-12-16 17:56:13,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5273 states, 5032 states have (on average 1.2992845786963434) internal successors, (6538), 5035 states have internal predecessors, (6538), 130 states have call successors, (130), 108 states have call predecessors, (130), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-16 17:56:13,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5273 states to 5273 states and 6800 transitions. [2023-12-16 17:56:13,230 INFO L78 Accepts]: Start accepts. Automaton has 5273 states and 6800 transitions. Word has length 180 [2023-12-16 17:56:13,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:13,231 INFO L495 AbstractCegarLoop]: Abstraction has 5273 states and 6800 transitions. [2023-12-16 17:56:13,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:13,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5273 states and 6800 transitions. [2023-12-16 17:56:13,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:13,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:13,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:13,236 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 (34)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:13,436 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 [2023-12-16 17:56:13,437 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:13,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:13,437 INFO L85 PathProgramCache]: Analyzing trace with hash -351478867, now seen corresponding path program 1 times [2023-12-16 17:56:13,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:13,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1614525948] [2023-12-16 17:56:13,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:13,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:13,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:13,475 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) [2023-12-16 17:56:13,476 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 [2023-12-16 17:56:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:13,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:13,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:13,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:13,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:13,619 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:13,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1614525948] [2023-12-16 17:56:13,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1614525948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:13,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:13,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:13,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195065820] [2023-12-16 17:56:13,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:13,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:13,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:13,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:13,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:13,620 INFO L87 Difference]: Start difference. First operand 5273 states and 6800 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:13,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:13,864 INFO L93 Difference]: Finished difference Result 10662 states and 13852 transitions. [2023-12-16 17:56:13,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:56:13,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:13,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:13,872 INFO L225 Difference]: With dead ends: 10662 [2023-12-16 17:56:13,872 INFO L226 Difference]: Without dead ends: 5409 [2023-12-16 17:56:13,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:13,879 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 47 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:13,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1422 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:13,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5409 states. [2023-12-16 17:56:14,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5409 to 5281. [2023-12-16 17:56:14,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 5040 states have (on average 1.2904761904761906) internal successors, (6504), 5043 states have internal predecessors, (6504), 130 states have call successors, (130), 108 states have call predecessors, (130), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-16 17:56:14,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 6766 transitions. [2023-12-16 17:56:14,046 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 6766 transitions. Word has length 180 [2023-12-16 17:56:14,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:14,046 INFO L495 AbstractCegarLoop]: Abstraction has 5281 states and 6766 transitions. [2023-12-16 17:56:14,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:14,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 6766 transitions. [2023-12-16 17:56:14,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:14,048 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:14,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:14,056 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 (35)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:14,253 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 [2023-12-16 17:56:14,253 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:14,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:14,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1525003951, now seen corresponding path program 1 times [2023-12-16 17:56:14,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:14,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607812904] [2023-12-16 17:56:14,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:14,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:14,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:14,261 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) [2023-12-16 17:56:14,263 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 [2023-12-16 17:56:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:14,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:14,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:14,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:14,401 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:14,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:14,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607812904] [2023-12-16 17:56:14,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [607812904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:14,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:14,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:14,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111986059] [2023-12-16 17:56:14,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:14,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:14,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:14,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:14,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:14,403 INFO L87 Difference]: Start difference. First operand 5281 states and 6766 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:14,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:14,663 INFO L93 Difference]: Finished difference Result 10654 states and 13752 transitions. [2023-12-16 17:56:14,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:56:14,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:14,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:14,674 INFO L225 Difference]: With dead ends: 10654 [2023-12-16 17:56:14,674 INFO L226 Difference]: Without dead ends: 5393 [2023-12-16 17:56:14,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:14,682 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 38 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:14,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1423 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:14,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5393 states. [2023-12-16 17:56:14,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5393 to 5289. [2023-12-16 17:56:14,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5289 states, 5048 states have (on average 1.2816957210776545) internal successors, (6470), 5051 states have internal predecessors, (6470), 130 states have call successors, (130), 108 states have call predecessors, (130), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-16 17:56:14,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 6732 transitions. [2023-12-16 17:56:14,852 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 6732 transitions. Word has length 180 [2023-12-16 17:56:14,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:14,852 INFO L495 AbstractCegarLoop]: Abstraction has 5289 states and 6732 transitions. [2023-12-16 17:56:14,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:14,853 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 6732 transitions. [2023-12-16 17:56:14,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:14,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:14,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:14,863 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 (36)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:15,059 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 [2023-12-16 17:56:15,060 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:15,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:15,060 INFO L85 PathProgramCache]: Analyzing trace with hash 382501485, now seen corresponding path program 1 times [2023-12-16 17:56:15,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:15,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605880004] [2023-12-16 17:56:15,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:15,061 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:15,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:15,069 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) [2023-12-16 17:56:15,070 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 [2023-12-16 17:56:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:15,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:15,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:15,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:15,229 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:15,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:15,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605880004] [2023-12-16 17:56:15,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605880004] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:15,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:15,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:15,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363978312] [2023-12-16 17:56:15,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:15,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:15,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:15,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:15,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:15,231 INFO L87 Difference]: Start difference. First operand 5289 states and 6732 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:15,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:15,517 INFO L93 Difference]: Finished difference Result 10646 states and 13652 transitions. [2023-12-16 17:56:15,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:56:15,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:15,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:15,526 INFO L225 Difference]: With dead ends: 10646 [2023-12-16 17:56:15,526 INFO L226 Difference]: Without dead ends: 5377 [2023-12-16 17:56:15,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:15,533 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 29 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:15,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1424 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:15,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5377 states. [2023-12-16 17:56:15,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5377 to 5297. [2023-12-16 17:56:15,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5297 states, 5056 states have (on average 1.2729430379746836) internal successors, (6436), 5059 states have internal predecessors, (6436), 130 states have call successors, (130), 108 states have call predecessors, (130), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-16 17:56:15,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5297 states to 5297 states and 6698 transitions. [2023-12-16 17:56:15,700 INFO L78 Accepts]: Start accepts. Automaton has 5297 states and 6698 transitions. Word has length 180 [2023-12-16 17:56:15,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:15,700 INFO L495 AbstractCegarLoop]: Abstraction has 5297 states and 6698 transitions. [2023-12-16 17:56:15,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:15,700 INFO L276 IsEmpty]: Start isEmpty. Operand 5297 states and 6698 transitions. [2023-12-16 17:56:15,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:15,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:15,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:15,722 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 [2023-12-16 17:56:15,906 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 [2023-12-16 17:56:15,906 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:15,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:15,907 INFO L85 PathProgramCache]: Analyzing trace with hash 2116605935, now seen corresponding path program 1 times [2023-12-16 17:56:15,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:15,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536047844] [2023-12-16 17:56:15,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:15,907 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:15,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:15,908 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) [2023-12-16 17:56:15,910 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 [2023-12-16 17:56:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:16,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:16,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:16,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:16,079 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:16,079 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:16,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536047844] [2023-12-16 17:56:16,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536047844] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:16,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:16,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:16,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791847328] [2023-12-16 17:56:16,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:16,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:16,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:16,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:16,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:16,081 INFO L87 Difference]: Start difference. First operand 5297 states and 6698 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:16,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:16,325 INFO L93 Difference]: Finished difference Result 10638 states and 13552 transitions. [2023-12-16 17:56:16,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:56:16,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:16,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:16,335 INFO L225 Difference]: With dead ends: 10638 [2023-12-16 17:56:16,335 INFO L226 Difference]: Without dead ends: 5361 [2023-12-16 17:56:16,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:16,342 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 20 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:16,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1425 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:16,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5361 states. [2023-12-16 17:56:16,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5361 to 5305. [2023-12-16 17:56:16,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5305 states, 5064 states have (on average 1.264218009478673) internal successors, (6402), 5067 states have internal predecessors, (6402), 130 states have call successors, (130), 108 states have call predecessors, (130), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-16 17:56:16,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5305 states to 5305 states and 6664 transitions. [2023-12-16 17:56:16,517 INFO L78 Accepts]: Start accepts. Automaton has 5305 states and 6664 transitions. Word has length 180 [2023-12-16 17:56:16,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:16,517 INFO L495 AbstractCegarLoop]: Abstraction has 5305 states and 6664 transitions. [2023-12-16 17:56:16,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:16,518 INFO L276 IsEmpty]: Start isEmpty. Operand 5305 states and 6664 transitions. [2023-12-16 17:56:16,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:16,519 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:16,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:16,523 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 [2023-12-16 17:56:16,723 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 [2023-12-16 17:56:16,723 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:16,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:16,724 INFO L85 PathProgramCache]: Analyzing trace with hash -269903571, now seen corresponding path program 1 times [2023-12-16 17:56:16,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:16,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980045064] [2023-12-16 17:56:16,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:16,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:16,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:16,725 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) [2023-12-16 17:56:16,753 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 [2023-12-16 17:56:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:16,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:16,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:16,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:16,857 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:16,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:16,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980045064] [2023-12-16 17:56:16,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980045064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:16,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:16,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:16,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725150741] [2023-12-16 17:56:16,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:16,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:16,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:16,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:16,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:16,863 INFO L87 Difference]: Start difference. First operand 5305 states and 6664 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:17,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:17,110 INFO L93 Difference]: Finished difference Result 10630 states and 13452 transitions. [2023-12-16 17:56:17,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:56:17,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:17,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:17,119 INFO L225 Difference]: With dead ends: 10630 [2023-12-16 17:56:17,119 INFO L226 Difference]: Without dead ends: 5345 [2023-12-16 17:56:17,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:17,130 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 11 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:17,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1426 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:17,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5345 states. [2023-12-16 17:56:17,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5345 to 5313. [2023-12-16 17:56:17,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5313 states, 5072 states have (on average 1.2555205047318612) internal successors, (6368), 5075 states have internal predecessors, (6368), 130 states have call successors, (130), 108 states have call predecessors, (130), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-16 17:56:17,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5313 states to 5313 states and 6630 transitions. [2023-12-16 17:56:17,296 INFO L78 Accepts]: Start accepts. Automaton has 5313 states and 6630 transitions. Word has length 180 [2023-12-16 17:56:17,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:17,296 INFO L495 AbstractCegarLoop]: Abstraction has 5313 states and 6630 transitions. [2023-12-16 17:56:17,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:17,296 INFO L276 IsEmpty]: Start isEmpty. Operand 5313 states and 6630 transitions. [2023-12-16 17:56:17,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:17,297 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:17,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:17,303 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 [2023-12-16 17:56:17,502 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 [2023-12-16 17:56:17,502 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:17,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:17,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1956083409, now seen corresponding path program 1 times [2023-12-16 17:56:17,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:17,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407496172] [2023-12-16 17:56:17,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:17,503 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:17,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:17,504 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) [2023-12-16 17:56:17,526 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 [2023-12-16 17:56:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:17,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:17,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:17,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:17,788 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:17,789 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:17,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407496172] [2023-12-16 17:56:17,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [407496172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:17,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:17,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:17,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333434773] [2023-12-16 17:56:17,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:17,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:17,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:17,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:17,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:17,790 INFO L87 Difference]: Start difference. First operand 5313 states and 6630 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:18,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:18,371 INFO L93 Difference]: Finished difference Result 10607 states and 13239 transitions. [2023-12-16 17:56:18,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:56:18,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:18,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:18,378 INFO L225 Difference]: With dead ends: 10607 [2023-12-16 17:56:18,379 INFO L226 Difference]: Without dead ends: 5313 [2023-12-16 17:56:18,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:18,383 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 597 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:18,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 791 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:56:18,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5313 states. [2023-12-16 17:56:18,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5313 to 5313. [2023-12-16 17:56:18,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5313 states, 5072 states have (on average 1.2527602523659307) internal successors, (6354), 5075 states have internal predecessors, (6354), 130 states have call successors, (130), 108 states have call predecessors, (130), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-16 17:56:18,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5313 states to 5313 states and 6616 transitions. [2023-12-16 17:56:18,551 INFO L78 Accepts]: Start accepts. Automaton has 5313 states and 6616 transitions. Word has length 180 [2023-12-16 17:56:18,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:18,551 INFO L495 AbstractCegarLoop]: Abstraction has 5313 states and 6616 transitions. [2023-12-16 17:56:18,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:18,551 INFO L276 IsEmpty]: Start isEmpty. Operand 5313 states and 6616 transitions. [2023-12-16 17:56:18,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:18,552 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:18,552 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:18,558 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 (40)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:18,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:18,756 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:18,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:18,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1080064403, now seen corresponding path program 1 times [2023-12-16 17:56:18,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:18,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156861066] [2023-12-16 17:56:18,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:18,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:18,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:18,759 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:18,787 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 (41)] Waiting until timeout for monitored process [2023-12-16 17:56:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:18,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:18,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:19,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:19,032 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:19,032 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:19,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156861066] [2023-12-16 17:56:19,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [156861066] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:19,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:19,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:19,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590056302] [2023-12-16 17:56:19,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:19,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:19,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:19,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:19,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:19,034 INFO L87 Difference]: Start difference. First operand 5313 states and 6616 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:19,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:19,623 INFO L93 Difference]: Finished difference Result 10607 states and 13211 transitions. [2023-12-16 17:56:19,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:56:19,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:19,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:19,631 INFO L225 Difference]: With dead ends: 10607 [2023-12-16 17:56:19,631 INFO L226 Difference]: Without dead ends: 5313 [2023-12-16 17:56:19,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:19,636 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 584 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:19,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 784 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:56:19,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5313 states. [2023-12-16 17:56:19,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5313 to 5313. [2023-12-16 17:56:19,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5313 states, 5072 states have (on average 1.25) internal successors, (6340), 5075 states have internal predecessors, (6340), 130 states have call successors, (130), 108 states have call predecessors, (130), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-16 17:56:19,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5313 states to 5313 states and 6602 transitions. [2023-12-16 17:56:19,833 INFO L78 Accepts]: Start accepts. Automaton has 5313 states and 6602 transitions. Word has length 180 [2023-12-16 17:56:19,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:19,833 INFO L495 AbstractCegarLoop]: Abstraction has 5313 states and 6602 transitions. [2023-12-16 17:56:19,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:19,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5313 states and 6602 transitions. [2023-12-16 17:56:19,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:19,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:19,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:19,843 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 (41)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:20,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:20,039 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:20,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:20,040 INFO L85 PathProgramCache]: Analyzing trace with hash 848208299, now seen corresponding path program 1 times [2023-12-16 17:56:20,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:20,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117903406] [2023-12-16 17:56:20,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:20,040 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:20,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:20,041 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:20,043 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 (42)] Waiting until timeout for monitored process [2023-12-16 17:56:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:20,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:20,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:20,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:20,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:20,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:20,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117903406] [2023-12-16 17:56:20,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1117903406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:20,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:20,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:20,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533760676] [2023-12-16 17:56:20,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:20,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:20,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:20,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:20,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:20,331 INFO L87 Difference]: Start difference. First operand 5313 states and 6602 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:21,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:21,041 INFO L93 Difference]: Finished difference Result 11025 states and 13718 transitions. [2023-12-16 17:56:21,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:56:21,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:21,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:21,050 INFO L225 Difference]: With dead ends: 11025 [2023-12-16 17:56:21,051 INFO L226 Difference]: Without dead ends: 5731 [2023-12-16 17:56:21,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:21,055 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 735 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:21,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 779 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:56:21,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5731 states. [2023-12-16 17:56:21,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5731 to 5627. [2023-12-16 17:56:21,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5627 states, 5374 states have (on average 1.2381838481577967) internal successors, (6654), 5377 states have internal predecessors, (6654), 134 states have call successors, (134), 116 states have call predecessors, (134), 118 states have return successors, (136), 134 states have call predecessors, (136), 134 states have call successors, (136) [2023-12-16 17:56:21,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5627 states to 5627 states and 6924 transitions. [2023-12-16 17:56:21,242 INFO L78 Accepts]: Start accepts. Automaton has 5627 states and 6924 transitions. Word has length 180 [2023-12-16 17:56:21,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:21,242 INFO L495 AbstractCegarLoop]: Abstraction has 5627 states and 6924 transitions. [2023-12-16 17:56:21,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:21,242 INFO L276 IsEmpty]: Start isEmpty. Operand 5627 states and 6924 transitions. [2023-12-16 17:56:21,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:21,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:21,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:21,247 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 (42)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:21,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:21,448 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:21,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:21,449 INFO L85 PathProgramCache]: Analyzing trace with hash -181150999, now seen corresponding path program 1 times [2023-12-16 17:56:21,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:21,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188037128] [2023-12-16 17:56:21,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:21,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:21,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:21,451 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:21,452 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 (43)] Waiting until timeout for monitored process [2023-12-16 17:56:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:21,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:21,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:21,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:21,726 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:21,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:21,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188037128] [2023-12-16 17:56:21,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188037128] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:21,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:21,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:21,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335164692] [2023-12-16 17:56:21,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:21,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:21,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:21,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:21,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:21,727 INFO L87 Difference]: Start difference. First operand 5627 states and 6924 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:22,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:22,407 INFO L93 Difference]: Finished difference Result 11605 states and 14366 transitions. [2023-12-16 17:56:22,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:56:22,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:22,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:22,415 INFO L225 Difference]: With dead ends: 11605 [2023-12-16 17:56:22,415 INFO L226 Difference]: Without dead ends: 5997 [2023-12-16 17:56:22,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:22,418 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 664 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:22,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 772 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:56:22,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5997 states. [2023-12-16 17:56:22,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5997 to 5973. [2023-12-16 17:56:22,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5973 states, 5716 states have (on average 1.2249825052484256) internal successors, (7002), 5719 states have internal predecessors, (7002), 134 states have call successors, (134), 120 states have call predecessors, (134), 122 states have return successors, (136), 134 states have call predecessors, (136), 134 states have call successors, (136) [2023-12-16 17:56:22,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5973 states to 5973 states and 7272 transitions. [2023-12-16 17:56:22,613 INFO L78 Accepts]: Start accepts. Automaton has 5973 states and 7272 transitions. Word has length 180 [2023-12-16 17:56:22,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:22,614 INFO L495 AbstractCegarLoop]: Abstraction has 5973 states and 7272 transitions. [2023-12-16 17:56:22,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:22,614 INFO L276 IsEmpty]: Start isEmpty. Operand 5973 states and 7272 transitions. [2023-12-16 17:56:22,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:56:22,615 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:22,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:22,619 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 (43)] Ended with exit code 0 [2023-12-16 17:56:22,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:22,819 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:22,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:22,819 INFO L85 PathProgramCache]: Analyzing trace with hash -158518745, now seen corresponding path program 1 times [2023-12-16 17:56:22,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:22,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575295101] [2023-12-16 17:56:22,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:22,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:22,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:22,821 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:22,850 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 (44)] Waiting until timeout for monitored process [2023-12-16 17:56:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:22,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:22,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:23,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:23,128 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:23,128 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:23,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575295101] [2023-12-16 17:56:23,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575295101] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:23,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:23,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:23,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346742650] [2023-12-16 17:56:23,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:23,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:23,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:23,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:23,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:23,129 INFO L87 Difference]: Start difference. First operand 5973 states and 7272 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:23,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:23,928 INFO L93 Difference]: Finished difference Result 19668 states and 23857 transitions. [2023-12-16 17:56:23,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:23,928 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2023-12-16 17:56:23,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:23,950 INFO L225 Difference]: With dead ends: 19668 [2023-12-16 17:56:23,950 INFO L226 Difference]: Without dead ends: 13716 [2023-12-16 17:56:23,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:23,963 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 759 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:23,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 988 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:56:23,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13716 states. [2023-12-16 17:56:24,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13716 to 13543. [2023-12-16 17:56:24,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13543 states, 13002 states have (on average 1.2166589755422244) internal successors, (15819), 13032 states have internal predecessors, (15819), 256 states have call successors, (256), 232 states have call predecessors, (256), 284 states have return successors, (322), 279 states have call predecessors, (322), 256 states have call successors, (322) [2023-12-16 17:56:24,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13543 states to 13543 states and 16397 transitions. [2023-12-16 17:56:24,415 INFO L78 Accepts]: Start accepts. Automaton has 13543 states and 16397 transitions. Word has length 180 [2023-12-16 17:56:24,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:24,416 INFO L495 AbstractCegarLoop]: Abstraction has 13543 states and 16397 transitions. [2023-12-16 17:56:24,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:24,416 INFO L276 IsEmpty]: Start isEmpty. Operand 13543 states and 16397 transitions. [2023-12-16 17:56:24,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-16 17:56:24,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:24,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:24,423 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 (44)] Ended with exit code 0 [2023-12-16 17:56:24,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:24,621 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:24,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:24,622 INFO L85 PathProgramCache]: Analyzing trace with hash -212282311, now seen corresponding path program 1 times [2023-12-16 17:56:24,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:24,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157126285] [2023-12-16 17:56:24,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:24,622 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:24,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:24,623 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:24,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2023-12-16 17:56:24,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:24,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:24,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:24,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:24,899 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:24,899 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:24,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157126285] [2023-12-16 17:56:24,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157126285] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:24,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:24,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:24,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041951693] [2023-12-16 17:56:24,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:24,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:24,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:24,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:24,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:24,900 INFO L87 Difference]: Start difference. First operand 13543 states and 16397 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:26,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:26,090 INFO L93 Difference]: Finished difference Result 39902 states and 48271 transitions. [2023-12-16 17:56:26,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:26,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 182 [2023-12-16 17:56:26,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:26,138 INFO L225 Difference]: With dead ends: 39902 [2023-12-16 17:56:26,138 INFO L226 Difference]: Without dead ends: 26380 [2023-12-16 17:56:26,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:26,148 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 689 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:26,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1351 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:56:26,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26380 states. [2023-12-16 17:56:27,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26380 to 26378. [2023-12-16 17:56:27,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26378 states, 25326 states have (on average 1.2140882887151543) internal successors, (30748), 25388 states have internal predecessors, (30748), 495 states have call successors, (495), 448 states have call predecessors, (495), 556 states have return successors, (643), 543 states have call predecessors, (643), 495 states have call successors, (643) [2023-12-16 17:56:27,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26378 states to 26378 states and 31886 transitions. [2023-12-16 17:56:27,061 INFO L78 Accepts]: Start accepts. Automaton has 26378 states and 31886 transitions. Word has length 182 [2023-12-16 17:56:27,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:27,062 INFO L495 AbstractCegarLoop]: Abstraction has 26378 states and 31886 transitions. [2023-12-16 17:56:27,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:27,062 INFO L276 IsEmpty]: Start isEmpty. Operand 26378 states and 31886 transitions. [2023-12-16 17:56:27,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-16 17:56:27,064 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:27,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:27,068 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 (45)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:27,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:27,268 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:27,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:27,269 INFO L85 PathProgramCache]: Analyzing trace with hash 393492471, now seen corresponding path program 1 times [2023-12-16 17:56:27,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:27,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [626514283] [2023-12-16 17:56:27,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:27,269 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:27,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:27,270 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:27,292 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 (46)] Waiting until timeout for monitored process [2023-12-16 17:56:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:27,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:56:27,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:27,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:27,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:27,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:27,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [626514283] [2023-12-16 17:56:27,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [626514283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:27,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:27,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:56:27,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968176017] [2023-12-16 17:56:27,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:27,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:56:27,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:27,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:56:27,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:27,398 INFO L87 Difference]: Start difference. First operand 26378 states and 31886 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 2 states have internal predecessors, (172), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:28,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:28,361 INFO L93 Difference]: Finished difference Result 52719 states and 63705 transitions. [2023-12-16 17:56:28,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:56:28,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 2 states have internal predecessors, (172), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 182 [2023-12-16 17:56:28,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:28,410 INFO L225 Difference]: With dead ends: 52719 [2023-12-16 17:56:28,410 INFO L226 Difference]: Without dead ends: 26362 [2023-12-16 17:56:28,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:28,431 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 506 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:28,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 464 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:28,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26362 states. [2023-12-16 17:56:29,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26362 to 26362. [2023-12-16 17:56:29,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26362 states, 25313 states have (on average 1.2137241733496622) internal successors, (30723), 25374 states have internal predecessors, (30723), 492 states have call successors, (492), 448 states have call predecessors, (492), 556 states have return successors, (640), 540 states have call predecessors, (640), 492 states have call successors, (640) [2023-12-16 17:56:29,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26362 states to 26362 states and 31855 transitions. [2023-12-16 17:56:29,344 INFO L78 Accepts]: Start accepts. Automaton has 26362 states and 31855 transitions. Word has length 182 [2023-12-16 17:56:29,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:29,344 INFO L495 AbstractCegarLoop]: Abstraction has 26362 states and 31855 transitions. [2023-12-16 17:56:29,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 2 states have internal predecessors, (172), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:29,344 INFO L276 IsEmpty]: Start isEmpty. Operand 26362 states and 31855 transitions. [2023-12-16 17:56:29,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-16 17:56:29,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:29,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:29,379 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 (46)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:29,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:29,566 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:29,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:29,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1073761812, now seen corresponding path program 1 times [2023-12-16 17:56:29,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:29,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173185691] [2023-12-16 17:56:29,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:29,567 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:29,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:29,568 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:29,570 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 (47)] Waiting until timeout for monitored process [2023-12-16 17:56:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:29,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:29,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:29,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:29,844 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:29,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:29,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [173185691] [2023-12-16 17:56:29,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [173185691] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:29,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:29,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:29,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615246512] [2023-12-16 17:56:29,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:29,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:29,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:29,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:29,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:29,845 INFO L87 Difference]: Start difference. First operand 26362 states and 31855 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:32,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:32,063 INFO L93 Difference]: Finished difference Result 77800 states and 93957 transitions. [2023-12-16 17:56:32,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:32,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2023-12-16 17:56:32,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:32,167 INFO L225 Difference]: With dead ends: 77800 [2023-12-16 17:56:32,167 INFO L226 Difference]: Without dead ends: 51459 [2023-12-16 17:56:32,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:32,199 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 681 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:32,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 1321 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:56:32,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51459 states. [2023-12-16 17:56:34,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51459 to 51457. [2023-12-16 17:56:34,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51457 states, 49413 states have (on average 1.2118875599538583) internal successors, (59883), 49541 states have internal predecessors, (59883), 951 states have call successors, (951), 864 states have call predecessors, (951), 1092 states have return successors, (1271), 1053 states have call predecessors, (1271), 951 states have call successors, (1271) [2023-12-16 17:56:34,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51457 states to 51457 states and 62105 transitions. [2023-12-16 17:56:34,173 INFO L78 Accepts]: Start accepts. Automaton has 51457 states and 62105 transitions. Word has length 184 [2023-12-16 17:56:34,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:34,173 INFO L495 AbstractCegarLoop]: Abstraction has 51457 states and 62105 transitions. [2023-12-16 17:56:34,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:34,173 INFO L276 IsEmpty]: Start isEmpty. Operand 51457 states and 62105 transitions. [2023-12-16 17:56:34,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-16 17:56:34,176 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:34,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:34,180 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 (47)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:34,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:34,381 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:34,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:34,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1622056426, now seen corresponding path program 1 times [2023-12-16 17:56:34,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:34,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953756742] [2023-12-16 17:56:34,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:34,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:34,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:34,386 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:34,388 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 (48)] Waiting until timeout for monitored process [2023-12-16 17:56:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:34,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:56:34,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:34,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:34,519 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:34,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:34,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953756742] [2023-12-16 17:56:34,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953756742] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:34,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:34,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:56:34,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379493937] [2023-12-16 17:56:34,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:34,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:56:34,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:34,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:56:34,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:34,521 INFO L87 Difference]: Start difference. First operand 51457 states and 62105 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 2 states have internal predecessors, (174), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:36,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:36,537 INFO L93 Difference]: Finished difference Result 102878 states and 124146 transitions. [2023-12-16 17:56:36,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:56:36,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 2 states have internal predecessors, (174), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2023-12-16 17:56:36,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:36,616 INFO L225 Difference]: With dead ends: 102878 [2023-12-16 17:56:36,616 INFO L226 Difference]: Without dead ends: 51442 [2023-12-16 17:56:36,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:36,645 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 504 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:36,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 463 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:36,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51442 states. [2023-12-16 17:56:38,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51442 to 51442. [2023-12-16 17:56:38,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51442 states, 49401 states have (on average 1.2117163620169633) internal successors, (59860), 49528 states have internal predecessors, (59860), 948 states have call successors, (948), 864 states have call predecessors, (948), 1092 states have return successors, (1268), 1050 states have call predecessors, (1268), 948 states have call successors, (1268) [2023-12-16 17:56:38,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51442 states to 51442 states and 62076 transitions. [2023-12-16 17:56:38,778 INFO L78 Accepts]: Start accepts. Automaton has 51442 states and 62076 transitions. Word has length 184 [2023-12-16 17:56:38,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:38,779 INFO L495 AbstractCegarLoop]: Abstraction has 51442 states and 62076 transitions. [2023-12-16 17:56:38,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 2 states have internal predecessors, (174), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:38,779 INFO L276 IsEmpty]: Start isEmpty. Operand 51442 states and 62076 transitions. [2023-12-16 17:56:38,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-16 17:56:38,781 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:38,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:38,786 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 (48)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:38,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:38,986 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:38,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:38,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1572502279, now seen corresponding path program 1 times [2023-12-16 17:56:38,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:38,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874506563] [2023-12-16 17:56:38,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:38,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:38,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:38,988 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:38,989 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 (49)] Waiting until timeout for monitored process [2023-12-16 17:56:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:39,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:39,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:39,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:39,272 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:39,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:39,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874506563] [2023-12-16 17:56:39,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1874506563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:39,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:39,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:39,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063772099] [2023-12-16 17:56:39,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:39,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:39,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:39,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:39,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:39,273 INFO L87 Difference]: Start difference. First operand 51442 states and 62076 transitions. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:42,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:42,933 INFO L93 Difference]: Finished difference Result 151788 states and 183108 transitions. [2023-12-16 17:56:42,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:42,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 186 [2023-12-16 17:56:42,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:43,118 INFO L225 Difference]: With dead ends: 151788 [2023-12-16 17:56:43,118 INFO L226 Difference]: Without dead ends: 100367 [2023-12-16 17:56:43,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:43,168 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 677 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:43,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 1290 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:56:43,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100367 states. [2023-12-16 17:56:46,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100367 to 100365. [2023-12-16 17:56:46,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100365 states, 96389 states have (on average 1.2105115728973224) internal successors, (116680), 96655 states have internal predecessors, (116680), 1831 states have call successors, (1831), 1664 states have call predecessors, (1831), 2144 states have return successors, (2507), 2047 states have call predecessors, (2507), 1831 states have call successors, (2507) [2023-12-16 17:56:46,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100365 states to 100365 states and 121018 transitions. [2023-12-16 17:56:46,963 INFO L78 Accepts]: Start accepts. Automaton has 100365 states and 121018 transitions. Word has length 186 [2023-12-16 17:56:46,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:46,963 INFO L495 AbstractCegarLoop]: Abstraction has 100365 states and 121018 transitions. [2023-12-16 17:56:46,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:56:46,963 INFO L276 IsEmpty]: Start isEmpty. Operand 100365 states and 121018 transitions. [2023-12-16 17:56:46,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-16 17:56:46,967 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:46,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:46,971 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 (49)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:47,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:47,171 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:47,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:47,172 INFO L85 PathProgramCache]: Analyzing trace with hash 756478263, now seen corresponding path program 1 times [2023-12-16 17:56:47,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:47,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628098840] [2023-12-16 17:56:47,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:47,172 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:47,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:47,173 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:47,174 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 (50)] Waiting until timeout for monitored process [2023-12-16 17:56:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:47,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:56:47,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:47,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:47,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:47,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:47,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628098840] [2023-12-16 17:56:47,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [628098840] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:47,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:47,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:56:47,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691271969] [2023-12-16 17:56:47,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:47,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:56:47,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:47,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:56:47,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:47,311 INFO L87 Difference]: Start difference. First operand 100365 states and 121018 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Received shutdown request... [2023-12-16 17:56:49,147 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:56:49,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:56:49,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:49,149 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 500 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:49,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 460 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:49,150 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:56:49,154 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 (50)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:49,193 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:56:49,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:49,356 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (100365states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (83001 states constructed, input type IntersectNwa). [2023-12-16 17:56:49,359 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-16 17:56:49,361 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:56:49,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:56:49 BoogieIcfgContainer [2023-12-16 17:56:49,362 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:56:49,362 INFO L158 Benchmark]: Toolchain (without parser) took 67762.54ms. Allocated memory was 309.3MB in the beginning and 6.7GB in the end (delta: 6.4GB). Free memory was 272.1MB in the beginning and 5.7GB in the end (delta: -5.4GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-16 17:56:49,362 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 199.2MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:56:49,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.41ms. Allocated memory is still 309.3MB. Free memory was 272.1MB in the beginning and 247.0MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-16 17:56:49,362 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.53ms. Allocated memory is still 309.3MB. Free memory was 247.0MB in the beginning and 242.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 17:56:49,362 INFO L158 Benchmark]: Boogie Preprocessor took 95.45ms. Allocated memory is still 309.3MB. Free memory was 242.8MB in the beginning and 237.5MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 17:56:49,362 INFO L158 Benchmark]: RCFGBuilder took 1024.74ms. Allocated memory is still 309.3MB. Free memory was 237.5MB in the beginning and 259.2MB in the end (delta: -21.7MB). Peak memory consumption was 71.3MB. Max. memory is 8.0GB. [2023-12-16 17:56:49,363 INFO L158 Benchmark]: TraceAbstraction took 66213.59ms. Allocated memory was 309.3MB in the beginning and 6.7GB in the end (delta: 6.4GB). Free memory was 258.7MB in the beginning and 5.7GB in the end (delta: -5.5GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-16 17:56:49,363 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 199.2MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 358.41ms. Allocated memory is still 309.3MB. Free memory was 272.1MB in the beginning and 247.0MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.53ms. Allocated memory is still 309.3MB. Free memory was 247.0MB in the beginning and 242.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 95.45ms. Allocated memory is still 309.3MB. Free memory was 242.8MB in the beginning and 237.5MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1024.74ms. Allocated memory is still 309.3MB. Free memory was 237.5MB in the beginning and 259.2MB in the end (delta: -21.7MB). Peak memory consumption was 71.3MB. Max. memory is 8.0GB. * TraceAbstraction took 66213.59ms. Allocated memory was 309.3MB in the beginning and 6.7GB in the end (delta: 6.4GB). Free memory was 258.7MB in the beginning and 5.7GB in the end (delta: -5.5GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was constructing difference of abstraction (100365states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (83001 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 366 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 66.2s, OverallIterations: 49, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 31.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28627 SdHoareTripleChecker+Valid, 14.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28068 mSDsluCounter, 49300 SdHoareTripleChecker+Invalid, 12.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29520 mSDsCounter, 1256 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20075 IncrementalHoareTripleChecker+Invalid, 21331 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1256 mSolverCounterUnsat, 19780 mSDtfsCounter, 20075 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8832 GetRequests, 8680 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100365occurred in iteration=48, InterpolantAutomatonStates: 208, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.2s AutomataMinimizationTime, 48 MinimizatonAttempts, 3549 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.4s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 8844 NumberOfCodeBlocks, 8844 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 8795 ConstructedInterpolants, 0 QuantifiedInterpolants, 13825 SizeOfPredicates, 12 NumberOfNonLiveVariables, 22444 ConjunctsInSsa, 192 ConjunctsInUnsatCore, 49 InterpolantComputations, 49 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown